南方农业学报2011，Vol.42Issue(12)：1469-1472,4.
赤霉素和乙烯利对桑树杂交组合种子发芽率的影响
Effects of gibberellic acid and ethephon on seed germination rate of mulberry hybrid combinations
摘要
Abstract
[Objective]The present experiment was conducted to investigate the effects of different concentration of gibberellic acid and ethephon on germination rate of mulberry seeds. [ Method ]The seeds of three mulberry diploid hybrid combinations, viz., Guisangyou 12, Guisangyou 62, Sha 2×Lun 109 and one triploid hybrid combination Sangteyou 1 were treated with different concentrations of gibberellic acid and ethephon (50, 100, 200 and 500 mg/kg) for 12 and 24 h to determine the germination rate. [Result] With the increase of gibberellic acid and ethephon concentration, the germination rate of seeds from four mulberry hybrid combinations increased initially, followed by a decrease. Three concentrations of gibberellic acid and ethephon (50, 100 and 200 mg/kg) increased the germination rate of three diploid mulberry varieties, while their 500 mg/kg concentration inhibited the germination of seeds. On comparing the duration of treatment, triploid hybrid seeds treated for 24 h with 50, 100, 200 and 500 mg/kg showed better germination compared to that of 12 h. [Conclusion]In conclusion, the mulberry seeds soaked in 200 mg/kg gibberellic acid or ethephon for 24 h resulted in best germination rates of hybrid mulberry seeds.关键词
赤霉素/乙烯利/桑树杂交种组合/种子/发芽率Key words
gibberellic acid/ ethephon/ mulberry hybrid combination/ seed/ germination rate分类
农业科技引用本文复制引用
邱长玉,石华月,陈芳,贾洪亮,朱方容,林强,曾燕蓉,陈小青,朱光书,李乙,唐燕梅,赖燕梅..赤霉素和乙烯利对桑树杂交组合种子发芽率的影响[J].南方农业学报,2011,42(12):1469-1472,4.基金项目
广西自然科学基金项目(桂科自0991177) （桂科自0991177）
