ACTA HORTICULTURAE SINICA ›› 2007, Vol. 34 ›› Issue (3): 711-716.
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LUO J ian; WANG Ying; LIN Dong-jiao; WANG Man-li; OU Zhi-chan; LIU Shi-zhe*
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Abstract: In order to study rapid culture techniques and root adaptability of Echinocactus grusonii, fivenutrient solutionswere used to grow Echinocactus grusonii together with a medium mixed with coconut husk,pearlite and sand as a control. The results showed that Echinocactus grusonii grew well in five tested formulaeand there was a significant increase in ball biomass in still solution culture over that in medium culture, with abiomass increment of 307.48 - 399.16 g·plant-1 in 163 d. In still solution culture, Echinocactus grusoniiroots grew well with vigorous root differentiation and development. For examp le, fresh and dry mass of root,root activity, total root length and root surface area increased by 114.6% , 43.3% , 38.1% , 460.7% and246.4% , respectively, over that in the medium culture. The submergence condition in solution culture alteredthe morphological and anatomic structure of rootswith smaller root diameter ( decreased from 0.83 mm in medium culture to 0.51 mm in solution culture) , less cortex cell layers, enlarged intercellular space, and moredeveloped root aerenchyma, which might be beneficial to root resp iration and up take of nutrients and water. Itis concluded that still solution culture is an effective and rap id cultural technique for Ech inocactus g rusonii.
Key words: Echinocactus grusonii, Hydroponics, Plant growth, Root adaptability
LUO J ian;WANG Ying;LIN Dong-jiao;WANG Man-li;OU Zhi-chan;LIU Shi-zhe. Studies on Rapid Culture Techniques and Root Adaptability of Echinocactusgrusonii in Hydroponics[J]. ACTA HORTICULTURAE SINICA, 2007, 34(3): 711-716.
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https://www.ahs.ac.cn/EN/Y2007/V34/I3/711