【作者】 于忠美； 曹彬彬； 金为民； 史益敏；

【机构】 上海交通大学农业与生物学院；

【摘要】 对葡萄风信子的田间试验研究表明,由不同等级的种球长成的植株,生长表现出一定的规律性,即种球越大出苗越早、越整齐,单株叶面积更大,花葶更多,花与植株更具观赏性。通过对种球繁殖系数和产量增长百分率的计算,明确了不同等级种球的繁殖情况。在种球在收获时(6月底),葡萄风信子种球中已经开始了花芽分化,这与郁金香、水仙等球根花卉不同,郁金香、中国水仙等的种球收获时处于休眠状态,只有休眠解除后,种球顶芽才能开始叶芽分化和花芽分化。相比之下,葡萄风信子的花芽分化时间比较早,即在种球收获前,地上植株还没有枯萎时,种球中已经开始了叶芽和花芽的分化。在5℃下,将种球分别冷藏7周、8周、9周、10周、11周,结果表明种球冷藏对葡萄风信子开花有促成作用,冷藏时间越长,开花越早。研究可对葡萄风信子种球生产与商品花节日上市提供技术指导。更多还原

【Abstract】 The study of field trial of M.armenicum Leichtlin showed that the growth of the plants which grew up by different bulb grades represented a certain regulation,the bigger the bulbs were,the earlier the planflets came out of the soil,and the larger leaf area and the more scapes they had.And the bigger the bulbs were,the better the blossoms are.By the results of reproduction coefficients and rate of yield increase,we can know the circumstantialities of propagating different grade bulbs.At harvest the bulbs are beginning in bud differentiation,that is earlier than those of tulip and Chinese Narcissus bulbs.The M.armenicum Leichtlin bubs bud is differing when tbe plant in field growth. Chilling the bulbs at 5℃for 7 weeks,8 weeks,9 weeks,10 weeks,11 weeks showed that had good effects on promoting efflorescence,the longer the bulbs treated,the earlier the bulbs blossomed.The study is of benefit to bulb production and flower supply.更多还原