果树

• The Effect of Climate Change on the Climatic Zoning for Wine Grapes in China
• LI Hua;WANG Yan-jun;YOU Jie;HUO Xing-san; and WANG Yao-qi
• Acta Horticulturae Sinica. 2009, 36(3): 313-320.
• Abstract ( 2042 ) HTML ( 2004 ) PDF (796KB) ( 2004 ) 　　　

• Based on the analysis of nationwide climatic data in recent 40 years, the software Arcgis was adopted to map the variation of Frost Free Period (FFP),Aridity index(AI)) and Climatic zoning of Chinese viticulture. By the research we found that: in recent 40 years, especially after 1980s, compared to FFP, the variation of Aridity index was not so significant, and represents a dry-moisture switch in 10 year span. The area suitable for grape-growing in China moved northwards constantly, and compared to the variation of Aridity index, the variation of viticulturable area was much more due to the variation of FFP.

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• Effect of Nitrogen-deficient and Iron-deficient on Root Architecture of Young Seedlings of Malus hupehensis (Pamp)Rehd.
• QIAO Hai-tao;YANG Hong-qiang;SHEN Wei-bao;JIANG Qian-qian;YOU Shu-zhen;ZHANG Long;RAN Kun;and ZHANG Xin-rong
• Acta Horticulturae Sinica. 2009, 36(3): 321-326.
• Abstract ( 1982 ) HTML ( 1946 ) PDF (287KB) ( 1946 ) 　　　

• The parameters of root architecture, total root length, surface area, volume, tips, branching angle and fractal dimension etc, were analyzed in young seedlings of Malus hupehensis Rehd. under nitrogen-deficient or iron-deficient in a solution culture system. The results showed that the proportion of fine root increased significantly, the root diameter and the fractal dimension decreased significantly, the angle between main root and first lateral root enlarged, and root tends to horizontal distribution under nitrogen-deficient or iron-deficient condition. Under nitrogen-deficient condition, the total length, surface area and volume of root and the number of Second lateral roots increased significantly. Under iron-deficient condition, the number of root tip and the length of main root increased significantly, the activity and the number of root decreased significantly. The root fractal dimension in iron-deficient condition is less than that in nitrogen-deficient.
  

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• Optimization of AFLP System for Fuji and Identification Early-maturing Sport from ‘Changfu 2’
• LI Yuan-jun;TANG Mei-ling;YU Qing;LIU Mei-ying;SONG Lai-qing;and HAN Zhen-hai
• Acta Horticulturae Sinica. 2009, 36(3): 327-332.
• Abstract ( 1849 ) HTML ( 1752 ) PDF (1043KB) ( 1752 ) 　　　
• Using AFLP to compare the early-maturing sport and its mother plant in ‘Changfu 2’．Sixty-four selective primer pairs was adopted in AFLP analysis. 2,700 clear bands was detected by 43 pairs of AFLP primers. There were 7 obvious bands difference between early-maturing sport and mother plant under 4 pair primers. The molecular weight range of the polymorphic fragments was mainly 350~800 bp．The results indicated that there were some molecular-level differentiation between 'Changfu 2' and its early-maturing sport. The application of AFLP in the research of apple bud mutation is Successfu1.
  
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• Primary Study on Identification of S-RNase Genes in Wild Myrobalan Plum (Prunus cerasifera Ehrh.)
• LIU Chong-qi;CHEN Xiao-liu;ZHANG Yan-min;LIN Qun;WANG Jin-zheng;ZHANG hong;ZHANG Chun-yu;and CHEN Xue-sen﹡
• Acta Horticulturae Sinica. 2009, 36(3): 333-340.
• Abstract ( 2026 ) HTML ( 1666 ) PDF (586KB) ( 1666 ) 　　　
• On fourty-five strains of wild myrobalan plum, the PCR amplification was carried out with the primer pair PruC2/PruC4R designed according to the conserved sequence of amino acid of Prunus S-RNase. The PCR bands were cloned and sequenced. The sequences were blasted in GenBank which showed them having the maximum identity with Prunus S-Rnases, and four S-RNase alleles were identified and named as S₁ (511 bp), S₂(787 bp), S₃(1,859 bp) and S₄(464 bp) alleles respectively, their accession numbers in GenBank are EF638726, EF641276, EF661873 and EF661874 . The S-genotypes of 43 strains were S₁S₂, S₁S₃, S₂S₃, S₂S₄ and S₃S₄. However, only one S-RNase allele was identified as S3-RNase on strain 10 and S4-RNase on strain 15, the S-genotypes of strain 10 and 15 remain to be further studied.
  
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• The Identif ica tion and Sequence Analysis of 16S Ribosomal DNA of the Phytoplasma sp. Associated with Peach Yellow Disease
• HUANG Yun;WANG Jing;ZHAO Yan-qin;and HE Miao
• Acta Horticulturae Sinica. 2009, 36(3): 341-346.
• Abstract ( 2122 ) HTML ( 1656 ) PDF (679KB) ( 1656 ) 　　　
• The phytop lasma associated with peach yellow disease occurred in Longquanyi District in Sichuan Province was studied. The specific fluorescence dots for the pathogen were observed in phloem cells of leaf veins under a fluorescence microscope by staining with 4, 62diamidino222phenylindole diacetate. Phytoplasma-like particles were also found in the same tissues under a transmission electronic microscope. Its diameter was 40-650 nm, 350 nm on average and the thickness of the unitmembrane of the pathogen was 10 - 16 nm. The 16S rDNA about 115 kb was amplified by nested-PCR with universal p rimers for Phytoplasm a using the total DNA extracted from diseased peach as the temp lates. A phylogenetic tree was constructed based on the sequences of 16S rDNA. The result showed that Phytoplasm a associated with peach yellow disease was closely related to nectarine yellows (NecY2In1).
  
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蔬菜

• In vitro Study on the Interactions between Determinant Factors of Self-Incompatibility in Brassica oleracea L. var.capitata L.
• YANG Yang;GAO Qi-Guo;SONG Ming;NIU Yi;TANG Qing-lin;ZHU Li-Quan;and WANG Xiao-Jia
• Acta Horticulturae Sinica. 2009, 36(3): 355-362.
• Abstract ( 1928 ) HTML ( 1673 ) PDF (999KB) ( 1673 ) 　　　
• Self-incompatibility of Brassica oleracea L. var. capitata L. is determined by the female determinant S-locus receptor kinase(SRK) and the male determinant S-locus cysteine rich protein/S-locus protein 11(SCR/SP11). For further study on mechanism and reagent control of the interaction between the determinant factors, extracellular and transmember domains of SRK(named as mSRK) and open reading frame of SCR were amplified from Brassica oleracea L. cv. ZQ. Then fusion protein of mSRK about 116 kD and SCR-orf about 74 kD were expressed in E. coli BL21 by the pET·NusA fusion expression system and separated by SDS-PAGE electrophoresis. After SCR-orf was incubated with mSRK for 2 hours, the interaction between the two proteins was analyzed; the result shows that mSRK and SCR could combine with each other and form a stable complex.
  
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• Cloning and Sequence Analyzing of Malate Dehydrogenase Gene in Chinese Cabbage (Brassica campestris L. ssp. pekinensis (Lour.) Olsson)
• JIA Jin;and ZHANG Lu-gang
• Acta Horticulturae Sinica. 2009, 36(3): 363-368.
• Abstract ( 1745 ) HTML ( 1753 ) PDF (1359KB) ( 1753 ) 　　　
• Firstly, a differential TDF (Transcript Derived Fragments) EST54-1 from the RNA of bud aborting of male sterile Chinese cabbage by cDNA-AFLP analysis was used as a querying probe to blast homologous ESTs sequences in the GenBank database, we spliced the homologous EST sequences assembled from GenBank, and gained an virtual sequence of 1 574 bp length. Then, two primers were designed from it, the full length cDNA of malate dehydrogenase gene in Chinese cabbage was gained through RT-PCR amplifying and sequencing and entered GenBank as accession number FJ208590, which is 1 209 bp length and coded 403 amino acids. Homologous analysis showed that the cDNA amplified had 99% identity with sequence from in silico cloning on the nucleotide acid sequence, and amino acids sequence derived from it had 100% identity with Malate Dehydrogenase (MDH) in Arabidopsis. Though the expression capacity of MDH gene in Chinese cabbage was depressed as bud aborting, the relationship between MDH and bud abortion in Chinese cabbage need to be clarified through further research such as RNAi technology etc.
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• Effects of NaHSO₃ on Photosynthesis in Spinach Seedlings Under EnhancedUV-B Radiation
• MA Hong-qun;HONG Hong;ZHOU Yi-tang;HU L i-tao;L IANG Li-jiao;and WU Neng-biao
• Acta Horticulturae Sinica. 2009, 36(3): 369-376.
• Abstract ( 1973 ) HTML ( 1599 ) PDF (415KB) ( 1599 ) 　　　
• Effects of NaHSO₃ on the changes of photosynthetic rate, Hill reaction rate, pigment content and the parameters of chlorophyll fluorescence under enhanced UV-B radiation were investigated in spinach leaves. The results were as follows: The content of p igment, net photosynthetic rate, conversion efficiency of primary light energy ( Fv/Fm ) of PSⅡ, the photochemical quenching coefficient ( q_P ) , the non2photochemical quenching coefficient ( qN ) , the quantum yield of PSⅡelectron transport (ΦPSⅡ ) and the Hill reaction rate were decreased while Chl. a /b, Car. /Chl. were enhanced by UV-B stress. Under the combined treatment of enhanced UV-B radiation and NaHSO₃ , NaHSO₃ could significantly alleviate the inhibition of high dosage
  UV-B treatment while imp roved little at low dosage UV-B radiation on the indexes above. It was suggested that the positive effects of NaHSO₃ could lighten the negative effects of UV-B radiation treatment as UV-B radiation
  became intensified. It is a primary reason of net photosynthetic rate enhancing that the Chl. a content, Hill reaction rate, Fv /Fm andΦPSⅡ were increased by combined treatment.
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观赏植物

• Studies on Numerical Taxonomy of the Malus halliana Koehne Cultivars inHenan
• CHU Ai-xiang;YANG Ying-jun;TANG Geng-guo;and TONG L i-li
• Acta Horticulturae Sinica. 2009, 36(3): 377-384.
• Abstract ( 1970 ) HTML ( 1451 ) PDF (554KB) ( 1451 ) 　　　
• Twenty-eightM alus halliana Koehne cultivars and fifty2one characters were selected for the numerical classification on the basis of investigation in Henan. Q cluster analysis showed that the number of petal and shape of fruitswere served as the group classification criteria. Thus M. halliana cultivarswere separated into three groups: Single annulus group, round fruit group, pear shape fruit group. The single annulus group evolvement to round fruit group, then evolvement to pear shape fruit group. Besides, the analysis also
  showed that the other characters such as flower diameter, fruit size, the growth state of footstalk and fruit peduncle, shoot thorn, the length of burgeon under anthotaxy, the color and floss of young leaf at the time of
  bloom, the color of flower thread and so on, were served as the cultivar classification criteria. R cluster analysis showed that the fifty-one characters had independent influences on the genetic relationship except leaf length and leafstalk length of young leaf (r=0.897) , mature leaf length and the space from leafwidth to leaf end (r=0.847) , flower diameter and petal length (r= 0.761) , mature leaf length and leaf middle width (r=0.721) , the ratio of fruit vertical length to fruit horizontal length ang fruit shape ( r = 01710) , the num
  ber of petal and anther color (r=0.747). All the studies could play a guided role in the selection of classification characteristics of ornamental species of Malus.
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• Evaluation of Nitrogen Relea se Fea ture of Macromolecule Polymer CoatedUrea and Effects on Tall Fescue Turf Growth
• GU Jia-lin;XU Jun-xiang;XU Qiu-ming;BIAN Xiu-ju;LI Hui-bin;and CAO Bing
• Acta Horticulturae Sinica. 2009, 36(3): 385-390.
• Abstract ( 1853 ) HTML ( 1624 ) PDF (502KB) ( 1624 ) 　　　
• The nitrogen release characteristic ofmacromolecule polymer coated urea ( PCU) by laboratory method of water dissolve and the effects of app lied PCU on tall fescue turf as basal app lication in spring was studied. The results showed that the rate of PCU nitrogen release by laboratorymethod ofwater dissolve is faster than the rate in the turf field because of their different circumstance temperature affect. Applying PCU once in early sp ring could meet nitrogen need of tall fescue growth in sp ring season. Compared with urea and turf special fertilizer, no significant difference was observed in turf quality. So, app lied PCU p lay an important role in reducing turf maintenance strength through keep ing even growth of turfgrass and less clippings production.
  
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• GC/MS Fingerpr int Analysis of Osmanthus fragrans Lour. in Different Varieties
• CAO Hui;LI Zu-guang;and SHEN De-long
• Acta Horticulturae Sinica. 2009, 36(3): 391-398.
• Abstract ( 2852 ) HTML ( 3611 ) PDF (526KB) ( 3611 ) 　　　
• The headspace constituents emitted from different varieties of fresh Osmanthus fragrans Lour. flowers were investigated by means of headspace solid-phase microextraction (HS-SPME) coupled to gas chromatography/mass spectrometry (GC /MS). In this study 20 volatile compoundswere identified in Osmanthus fragrans var. thunbergii, 13 volatile compounds were identified in Osm anthus frag rans, 9 volatile compounds were identified in Osmanthus fragrans f. au rantiacus. (Z)-ocimene, 4-hexenyl acetate, cis-linalol oxide, trans-linalool oxide, β-linalool, α-ionone, β-ionone, γ-decalactone were the same volatiles released from fresh flowers of three different Osmanthus fragrans Lour. The finger prints were analyzed by similarity evaluation and princip le component analysis to conduct the chemical pattern recognition. The results indicated that headspace SPME-GC /MS afforded a simp le samp ling method for identification of the main volatile fragrance from different varieties of fresh Osm anthus fragrans Lour. flowers. The fragrans of Osmanthus fragrans Lour. flowers not only had some resemblance, but also had some difference. The different varieties of fresh Osmanthus fragrans Lour. flowers were distinguished and classified by finger prints similarity evaluation and
  p rincip le component analysis.
  
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• Factors Affecting Shoot Regenera tion from Leaf and Hypocotyl Explants ofPlatanus acerifolia Willd.
• LIU Guo-feng and BAO Man-zhu
• Acta Horticulturae Sinica. 2009, 36(3): 399-404.
• Abstract ( 2173 ) HTML ( 1472 ) PDF (422KB) ( 1472 ) 　　　
• Effects of different genotypes, PGRs, illumination conditions and position of exp lants on adventitious shoot regeneration from hypocotyl and /or leaf of Platanus acerifolia were investigated. The results indicated that the ratio of 62BA to IBA in the medium influenced shoot regeneration of hypocotyl segments and 6-BA ∶IBA < 20 ∶1 gave a better effect; Shoot regeneration from leaf exp lantswas significantly different among four different genotypes investigated, with the highest regeneration rate obtained for leaf exp lants of genotype PH2, and TDZ was less effective than 6-BA to induce shoot regeneration from PH2 leaves. Maintaining the cultures in darkness for the firstmonth promoted shoot regeneration of hypocotyl explants to some extent, but leaves incubated in darkness regenerated less shoots evidently; Light intensity of 50 - 100 lx was favorable to shoot regeneration. Significant differences of regeneration capability existed among different sections of hypocotyl and position of leaves, and the hypocotyl section adjacent to the cotyledons and the uppermost two leaves of the shoots showed better regeneration capability than the lower sections and leaves. Furthermore, shoot regeneration of the intact leaveswounded by three cutswasmore efficient than that of severed leaf segments, indicating that the ECIWO /holographic phenomenon existed during in vitro culture of hypocotyls and leaves of P. acerifolia.
  
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研究简报

• Effect of Post-harvest Hot Air Treatments on the Wound Healing in Apple Fruit
• SHAO Xing-feng;TU Kang;ZHAO Yan;and SU Jing
• Acta Horticulturae Sinica. 2009, 36(3): 405-408.
• Abstract ( 2138 ) HTML ( 1913 ) PDF (453KB) ( 1913 ) 　　　

• The main research of this paper focused on the effects of hot air treatment (38°C 4d) on the wound healing of 'Gala' and 'Red Fuji' apple fruits. SEM (Scanning electron microscopy) analysis found that the epicuticular wax was melted by heat treatment, and then filled in the micro-wounds and encapsulated the hyphae, thereby, prevented the invasion by fungi. Artificial wounds cured for 4 days either at 20°C or 38°C before inoculation could decrease susceptibility to infection, and thereby, the decay development was reduced. But the effects of heating on the wound healing in apples were cultivar dependent. Compared to curing at 20°C, curing at 38°C accelerated the wound healing in 'Red Fuji' apple, but retarded the wound healing in 'Gala' apple.
  

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• Studies on tissue culture and rapid propagation of hybrid hazelnut
• LIU Jian-feng;CHENG Yun-qing;CHEN Zhi-wen;and DUAN Ai-Ping
• Acta Horticulturae Sinica. 2009, 36(3): 409-414.
• Abstract ( 2510 ) HTML ( 1560 ) PDF (358KB) ( 1560 ) 　　　
• Stem segment and root tiller explants of hybrid hazelnut cultivar Dawei, Jinling, Yuzhui, Pingdinghuang and Bokehong were used to select proper basic medium, establish buds inducement and rapid propagation procedure. The results showed that: (1) during primary culture process, stem segment and root tiller explants were cultured in DKW medium, and the contaminate rate was above 75% and below 20%, survive rate of explants were below 15% and above 65%, propagation times were below 0.3 and above 1.5 respectively. (2) Among basic medium NRM、DKW、WPM、NN and MS, shoot length and auxiliary buds per shoot in NRM medium were higher apparently compared with other medium. (3) Medium NRM+5 mg·L^-1 6-BA+0.01 mg·L^-1 IBA+64.42 mg·L^-1 putrescine+58.10 mg·L^-1 spermidine + 20.20 mg·L^-1 spermine were profitable to promote buds germination and growth. (4) tube plantlet could root in 15 d and rooting rate reached over 95% when its end dipped in 1 g·L^-1 IBA for 20 seconds, and its roots were strong. Transplant survive rate was over 97%.
  
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• Effects of Exogenous Salicylic Acid on Nitrate Accumulation and Reduction and Assimilation in the Leaves of Chinese chive
• CAO Yan-po;GAO Zhi-kui;HE Jun-ping;WANG Mei;and GAO Rong-fu
• Acta Horticulturae Sinica. 2009, 36(3): 415-420.
• Abstract ( 2067 ) HTML ( 1825 ) PDF (344KB) ( 1825 ) 　　　

• In view of nitrate accumulation Chinese chive production, effects of exogenous salicylic acid on nitrate accumulation and reduction and assimilation in the leaves of Chinese chive were studied. The results indicated that the nitrate content of Chinese chives were significantly decreased from 15.9% to 21.6% with various concentration SA treatment after 6 to 9 days under different levels of nitrogen. Optimal concentration of SA is 3.0 mmol·L^-1, and SA concentration reached 10.0 mmol·L^-1, nitrate accumulation could be aggravated. After 9 days with spraying 3.0 mmol·L^-1 SA on leaves, the activity of nitrate reductase (NR) and glutamine synthetase (GS) were increased 48.9% and 40.3%; photosynthetic rate and dissolvable protein were increased 43.4% and 21.3%; However, the activity of GOT and GPT were slightly higher than the control. Therefore, activity of NR (which was named as 'N-reducing-driving-pump') and GS (which was called 'first driving pump') were significantly increased by spraying on leaves with exogenous SA, while photosynthesis and transaminations were played the positive role of coordination, and translation of nitrate into free amino acid and dissolvable protein were promoted and nitrate accumulating into the vacuole of Chinese chives were reduced.
  

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• Effects of Night Temperature on Fruit Expansion and Polyamine Content in Melon
• LI Tian-lai;HAO Jing-hong;DU Zhe;and WANG Yan-di
• Acta Horticulturae Sinica. 2009, 36(3): 421-426.
• Abstract ( 2036 ) HTML ( 1515 ) PDF (290KB) ( 1515 ) 　　　
• To probe into the response of endogenous polyamine to temperature stress and the relationship between endogenous polyamine and fruit expansion, The effects of different night temperatures on fruit expansion and polyamines were analyzed with Cucumis melo L. 'Yu Meiren' as material. The results showed that single fruit weight, transverse length and vertical length after 12 ℃ in night were biggest, that after 15 ℃ in night were the second, and the single fruit weight, transverse length and vertical length after 18 ℃ in night were significant smaller than that after the treatment of 15 ℃ in night, whereas the single fruit weight, transverse length and vertical length after 9 ℃ in night were remarkable smaller than that after the treatment of 18 ℃ in night. Meanwhile, the change of PA content in fruit indicated that the contents of total PA, Spd, Put decreased during fruit development, while the difference among night temperatures was lied. The contents of Put, Spd, Spm, total PA were lowest in six days after the treatment of 9 ℃ in night, and that of 18 ℃ in night was remarkable lower than that of 12 ℃ and 15 ℃ in night. Moreover, the difference between 12 ℃ and 15 ℃ in night was not significant . In addition, Put、Spd and total PA content in fruit was positively correlated to the increment rate of melon single fruit. These results suggested that the effect of high or low temperature on fruit expansion may be related with the change of PAs in fruit.
  
  
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• Effects of Space Electro Static Field and CO₂ on Photosynthetic Characteristics in Cucumber Seedings
• Peng Bing-hui;Wang Xiu-feng;and Ding Fei
• Acta Horticulturae Sinica. 2009, 36(3): 431-436.
• Abstract ( 1989 ) HTML ( 1443 ) PDF (434KB) ( 1443 ) 　　　
• The effects of space electro static field and CO₂ on cucumber（Cucumis sativus L.）seeding's photosynthesis were studied in plastic chambers. The results showed space electro static field can significantly promoted cucumber，s net photosynthetic rate（Pn），strengthened the plant's photosynthesis，and each treatment's diversity elevated too.With the increasing of photosynthetically active radiation（PAR），the diversity of photosynthesis was mainly caused by non-stoma restriction in each treatment。There were no significant differences on cucumber's apparent quantum efficiency（AQY）which treated by electro static field and CO₂。Electro static field decreased obviously largely CO₂ saturation point（CSP）and CO₂ compensation point（CCP）in cucumber，also increased obviously plant's carboxylation efficiency（CE） and Max regeneration velocity of RuBP，plant's photorespiration rate（R_P）has a marked rise. CO₂ can decreased significantly cucumber's light compensation point（LCP）。
  
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• Preliminary identification of Tospovirus on tomato in Jianshui county of Yunnan province
• LIU Ya-ting;ZHENG Yuan-xian;LI Yong-zhong;LI Zheng-yue
• Acta Horticulturae Sinica. 2009, 36(3): 437-440.
• Abstract ( 2124 ) HTML ( 1452 ) PDF (256KB) ( 1452 ) 　　　

• Nine samples possibly from genus Tospovirus were collected from major vegetable-growing field in Yunnan province, including Honghe, Chuxiong and Kunming, during 2005 - 2006 period. Around 500 bp fragments were obtained after RT-PCR were executed on 9 samples using Tospovirus Group Primers. The sequence results of around 500 bp fragments were compared in the NCBI BLAST website, one sample from tomato in Honghe county of Yuannan province was identified as Tospovirus genus. A phylogenetic tree was constructed using DNAMAN software according to the sequence of the sample and their corresponding public RNA L fragment sequences of Tospovirus. The results indicated that this sample obtained in this study fell into the Serogroup Ⅳ.
  

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• A Study on Aseptic Seed Germination of Interspecific Hybrid between Cymbidium hybrida × C. sinense and C. faberi
• CHEN Yao-yao;ZHANG Yan;ZHANG Chen;and WANG Guang-dong
• Acta Horticulturae Sinica. 2009, 36(3): 441-446.
• Abstract ( 2910 ) HTML ( 2045 ) PDF (307KB) ( 2045 ) 　　　

• An aseptic seed germination protocol for interspecific hybrid between Cymbidium hybrida × C. sinense and C. faberi was established. The results showed that seed germination rate related to its' mature degree and seed harvested 240 days after pollination germinated well. The suitable medium for hybrid seed germination was half strength MS basal medium supplemented with 0.5 mg·L^-1 6-BA and 2.0 mg·L^-1 NAA. Germinated seeds can be multiplied in vitro via 2 pathways: PLBs and rhizomes. The optimal medium for proliferation of PLBs was half strength MS medium (Solid/Liquid) supplemented with 0.5 mg·L^-1 6-BA and 2.0 mg·L^-1 NAA, and proliferation coefficient could reach to 4.25 after 30 days culture. The development and plantlet regeneration of PLBs can be highly enhanced on medium containing 1.0 mg·L^-1 6-BA and 0.5, 1.0 mg·L^-1 NAA. On the other hand, when rhizomes developed from PLBs were cultured on the medium containing 0.5 mg·L^-1 6-BA and 1.0 mg·L^-1 NAA for 40 days, the highest proliferation coefficient reached to 6.67, and subsequently more than 80％ of the apex of rhizomes developed into shoots within 70 days culture on the medium containing 1.0 mg·L^-1BA and 0.5 mg·L^-1 NAA.
  

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综述

• Advances in Research of the Malus sieversii (Lebed.)Roem.
• ZHANG Yan-min;FENG Tao;ZHANG Chun-yu;HE Tian-ming;ZHANG Xiao-yan;LIU Zun-chun;WANG Yan-ling;SHU Huairui;and CHEN Xue-sen
• Acta Horticulturae Sinica. 2009, 36(3): 447-452.
• Abstract ( 1892 ) HTML ( 2234 ) PDF (213KB) ( 2234 ) 　　　

• Malus sieversii (Lebed.) Roem.， the main progenitor of domesticated apple (Malus domestica Borkh.) is rich in genetic diversity. M. sieversii is mainly distributed in Tianshan Mountains in Central Asia including Gongliu population, Xinyuan population, Huocheng population and Yumin population in China.The occurrence，taxonomic status，Population genetic structure，Genetic diversity and Core collection construction of Malus sieversii were reviewed ,in order to provide the reference for efficacious conservation and utilization of Malus sieversii.
  
  

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新方法

• Residues Analysis and Degradation Dynamic of Organophosphorus Pesticides in Citrus Fruits
• QI Wei-jing;ZHANG Hong-yan;DENG Xiu-xin;and XU Juan;
• Acta Horticulturae Sinica. 2009, 36(3): 453-458.
• Abstract ( 2376 ) HTML ( 1711 ) PDF (254KB) ( 1711 ) 　　　

• Conditions for pretreatment and determination of organophosphorus pesticide residues contained in fruits of Citrus unshiu Marc. 'Guoqing 1' were optimized. Furthermore, the dynamical regularity of chlorpyrifos in citrus fruits was studied. The results showed that pretreatment techniques were suitable for citrus sample. The limits of detection for dimethoate, methidathion and chlorpyrifos were 0.244，0.306 and 0.409 μg·mL^-1 respectively，the average recoveries were from 74.76 to 99.16 %，and the relative standard derivation (RSD) were between 1.01 % and 10.08 %，which met the requirements of multiple residues analysis in a single run. More pesticide residues and faster dynamical regularity of chlopyrifos were found in the peel than in the pulp of citrus，and almost no residue was found in fruits after 30 days of spraying. The half-life of the pesticide was significantly different between the citrus fruits treated with different pesticide concentrations. The degeneration of chlorpyrifos residue in citrus peel and pulp were 10.71 ~ 10.88 d and 13.55 ~ 13.85 d respectively.
  

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新品种

• A New Flat Nectarine Cultivar‘Jinxia Youpan’
• MA Rui-juan;YU Ming-liang;DU Ping;SONG Hong-feng;SHEN Zhi-jun;XU Jian-lian;CA I Zhi-xiang;and ZHANG Yu-yan
• Acta Horticulturae Sinica. 2009, 36(3): 459-459.
• Abstract ( 1900 ) HTML ( 1639 ) PDF (358KB) ( 1639 ) 　　　
• ‘Jinxia Youpan’is a mid-season flat-nectarine cultivar derived from the cross of Xiaguang ×NF.Its average fruitweight is 121 g. The flesh is yellow, hard-melting, sweetwith soluble solids content 1415%.The fruit development period ( FDP) is about 114 days.
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• A New Pomegranate Cultivar‘Baiyushizi’
• ZHU L i-wu;ZHANG Shui-ming;JIA Bing;and YE Zhen-feng
• Acta Horticulturae Sinica. 2009, 36(3): 460-460.
• Abstract ( 1948 ) HTML ( 1272 ) PDF (319KB) ( 1272 ) 　　　
• ‘Baiyushizi’is a new soft-seeded cultivar with largest arils selected from the mutant of Punica granatum‘Sanbai’by assistant of RAPD-PCR technique. The average fruit weight is 469.1 g. The largest aril is 1102 g. The soluble solids content and juice content are 16.4% and 81.4% respectively. The seed
  average hardness is 3.29 kg·cm^-2. It is p roductive and has high resistance to the Iythia versoniana Sau. and Cercospra punicae P. Henm. The fruitmatured in late September in the mid-area of Anhui Province.
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• A New Blueberry Cultivar ‘Ruilan’
• TANG Xue-dong;LI Ya-dong;ZHANG Zhi-dong;WU Lin;LIU Hai-guang;LIU Hong-zhang;GONG Guo-hui;and DOU Sen
• Acta Horticulturae Sinica. 2009, 36(3): 461-461.
• Abstract ( 1854 ) HTML ( 1121 ) PDF (94KB) ( 1121 ) 　　　
• ‘Ruilan’ is a new blueberry cultivar which selected from‘Northblue’variation type of theUnited States. It ismid-early and harvests in the mid-July in Changchun. The fruit is oblate with white fruit powder, good flavor and blue color. The average weight of a single berry is 2.1 g. Its fruit cluster is tight. It
  also has high bearing fruit rate, excellent resistant to cold and disease and high yield.
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• A New Early-maturing and Hot-resistant Chinese Cabbage Hybrid‘Zhebai 8’
• ZHONG Xin-min;LI Bi-yuan;WANG Wu-hong;GUO Wei;and YU Hui-fang
• Acta Horticulturae Sinica. 2009, 36(3): 462-462.
• Abstract ( 2427 ) HTML ( 1223 ) PDF (93KB) ( 1223 ) 　　　
• ‘Zhebai 8’ is an novel early-maturing and hot-resistant Chinese cabbage hybrid. It takes 55 days from planting to harvest. Head is of good compaction and tender leaves are hairless. It is also good quality. Each head weights 1.5 - 2.0 kg. The net yield is about 70 000 kg·hm^-2. It is able to form head in high temperature with good general disease2resistance. It is suitable to be cultivated in the Yangtze River Valley and North China. It is ideal variety which comes into market during the NationalDay.
  
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• A New Dry2hot Pepper‘Qiubei Zaojiao 1’
• ZHU Hai-shan;WU Bo-zhi;DENG Ming-hua;ZHANG Hong;ZHAO Kai;and YANG Ting-ting
• Acta Horticulturae Sinica. 2009, 36(3): 463-463.
• Abstract ( 1930 ) HTML ( 1196 ) PDF (93KB) ( 1196 ) 　　　
• ‘Qiubei Zaojiao 1’ is a new dry-hot pepper cultivar. It grows compactly and erectly. It is resistant to diseases and lower temperature. The fruits are red and p lump, fruit length is 6 - 8 cm, fruit diameter is 0.6 - 0.8 cm, single fruitweight is 1.8 - 2.1 g. The yield is up to 1.8 t·hm^-2 ( dryweight). It is suitable to p lant Southwest and Northwest in China.
  
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• A New Tetraplo id Hami-melon Cultivar ‘Xiurong’
• TONG Li;WANG Xin;WANG Yun-he;CHEN Ying;and ZENG Bin
• Acta Horticulturae Sinica. 2009, 36(3): 464-464.
• Abstract ( 1839 ) HTML ( 1262 ) PDF (73KB) ( 1262 ) 　　　
• ‘Xiurong’is a tetrap loid hami-melon cultivar with moderate maturity. Its growing season is 90 - 95 days. The fruit is oval and the flesh is orange. The pericarp is green on a meticulous review of netted,succulent crisp. The sugar content of the center is about 16%. The average single fruitweight is 1.5 - 2.0 kg and the yield is 30 - 34 t·hm^-2. It has good quality and storability.
  
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• A New Mini-watermelon Cultivar‘Shengnühong 2’
• GU Wei-hong;SONG Rong-hao;YANG Hong-juan;and MA Kun
• Acta Horticulturae Sinica. 2009, 36(3): 465-465.
• Abstract ( 2053 ) HTML ( 1379 ) PDF (94KB) ( 1379 ) 　　　
• ‘Shengnühong 2’is a new mini-watermelon cultivar with good quality, early maturity and tolerance. This cultivar is with strong growing plants, and producing the female flower is early. It is easy to set fruit, harvesting about 26 d after flowering. The fruit is ellipse, single fruit is 1.8 - 2.2 kg, and the skin is light green with dark green thin strip. The flesh is dark pink, taste more juicy and delicate. It is suitable to plant in p lastic or greenhouse in sp ring in most area of China.
  
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• A New Primula Cultivar‘Hongxia’
• LI Shi-feng;QU Yun-hui;LI Han;FAN Mou-tian;and ZHANG Ting
• Acta Horticulturae Sinica. 2009, 36(3): 466-466.
• Abstract ( 1739 ) HTML ( 1320 ) PDF (355KB) ( 1320 ) 　　　
• ‘Hongxia’is a new Primula cultivar which selected from the wild generational population of Primula beesiana Forrest. The inflorescence is big and uniform. It is suitable for p lanting in early spring for ornamental.
  
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