Studies on Compatibility of Interspecific Hybridization Between Iris lactea Pall. var. chinensis Koidz. and I. sanguinea Hormen.

ACTA HORTICULTURAE SINICA ›› 2011, Vol. 38 ›› Issue (5): 977-984.

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Studies on Compatibility of Interspecific Hybridization Between Iris lactea Pall. var. chinensis Koidz. and I. sanguinea Hormen.

BI Xiao-ying 1,2,* ，LOU Qi 1，and ZHENG Yang 1,2

（¹ College of Horticulture，Shenyang Agricultural University，Shenyang 110866，China；2 Key Laboratory of Northern Landscape Plants and Regional Landscape，Shenyang 110866，China）

Received:2010-01-18 Revised:2011-04-12 Online:2011-05-25 Published:2011-05-25
Contact: BI Xiao-ying

Abstract

Abstract: The cross-compatibility between two Iris species，Iris lactea Pall. var. chinensis Koidz. and I. sanguinea Hormen. was studied by capsule-setting and pollen tube behaviors after common pollination，so was the effects of different pollination methods on fruiting rate. The results showed that no capsules were obtained from reciprocal crosses between the two species，which inferred cross-incompatibitily between them. Pollen grains of I. sanguinea germinated at stigma of I. lactea var. chinensis after 2 hours of pollination，significantly lagging behind self-fertilization of parents，no germination of I. lactea var. chinensis pollen grains was observed on stigma of I. sanguinea. The optimum pollination method for I. lactea var. chinensis × I. sanguinea was 0.1% 6-BA treatment before pollination，fruiting rate and embryo rate reached to 10% and 16.67%，respectively，while the benefit way for I. sanguinea × I. lactea var. chinensis was pollination in advance，fruiting rate was arrival at 15%，and embryo rate was 25.70%，respectively.

Key words: Iris L., interspecific hybridization, compatibility, pollination method, fluorescence

CLC Number:

S 682.1+9

BI Xiao-ying;;LOU Qi;and ZHENG Yang;. Studies on Compatibility of Interspecific Hybridization Between Iris lactea Pall. var. chinensis Koidz. and I. sanguinea Hormen. [J]. ACTA HORTICULTURAE SINICA, 2011, 38(5): 977-984.

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Studies on Compatibility of Interspecific Hybridization Between Iris lactea Pall. var. chinensis Koidz. and I. sanguinea Hormen.

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