首页分享石蒜类植物无性繁殖技术

石蒜类植物无性繁殖技术

来源：花匠小妙招时间：2024-12-21 22:43

摘要： <正>对石蒜Lycorisradiata(L′Her)Herb.、换锦花L .sprengeriComesexBaker、中国石蒜L .chinensisTraub和忽地笑L .aurea(L′Her)Herb .4个种采用切割法 ,并对石蒜L .radiata和长筒石蒜L .longitubaY .HsuetQ .J.Fan 2个种采用双鳞片法进行繁殖研究 ,同时 ,以前4个种 1年生子球为材料进行栽培试验。结果表明 ,4个种切割繁殖子球数存在显著差异。以中国石蒜的繁殖系数最高 ;切割两刀和三刀间差异不显著 ;种类、激素处理及鳞片部位对子球繁殖有显著影响 ,石蒜优于长筒石蒜 ;用BA 5 0 0mg/L处理繁殖系数最高 ,达 2 5倍 ;不同种类子球生长速度不同 ,种间差异极显著。忽地笑生长最快 ,最大围径达 1 6.7cm ,最大重量为89.8g;两种繁殖方法中 ,双鳞片法繁殖系数高于切割法 ,但切割法在短期内能获得质优个大的子球 ,忽地笑和石蒜 2年生子球 5 0 %以上能达到合格球标准

Abstract: The genus Lycoris (Amaryllidaceae)is native to China,and is one of rare bulb flower plants that blossom in summer and autumn.The flowers of Lycoris were characterized with their plentiful colors as well as beautiful and varied shapes.Their medicinal value is very high for a plenty of Galanthamine,is an alkaloid,which is wildly distributed in the genus Lycoris .The plants are tolerant to drought,waterlogging,and grow vigorously even in barren land,and thus showing good prospects in horticulture and medicine.But the speed of vegetation propagation is very slow,and the plant products only 1～2 new bulblet every year.A new economic and effective method of propagation has been explored.Studies of incising and cultivation are conducted on Lycoris radiata (L′Her)Herb., L.sprengeri Comes ex Baker, L.aurea (L′Her)Herb.While the research of twin scaling is progressed on L.radiata and L.longituba Y.Hsu et Q.J.Fan.The results are as follows:(1)Marked difference was observed on the formation of bulblets among 4 species.Whereas the highest propagation coefficient was obtained on L.chinensis .There was no significant difference between the twice excision and the thrice excision.(2)There was marked difference on the growing rate of bulblet among species,the plant growth regulation concentrations and position of twin scale.The growing rate of bulblet of L.radiata was higher than that of L.longituba .Of the plant growth regulation concentration,BA (500 mg/L) was best,with propagation coefficient 25 times.(3)The develop speed had a significantly different among 4 species. L.aurea had the fastest develop speed,which the biggest circumference of bulblet 16.7 cm and the biggest weight 89.8 g.(4)By the twin scaling,the more bulblets could be obtained,but by the excising,the better and bigger bulblets were formed in a short time.50% bulblets could reach standard after 2 years on L.radiata and L.aurea.

中图分类号:

S682.2