仙人球种子萌发特性初探

Preliminary Exploration on Seed Germination Characteristic of Cactus

为了解仙人球种子的特性,探讨光照、GA3和6-BA对仙人球种子萌发的影响,观察了仙人球种子的吸水率,测定了不同浓度的GA3和6-BA(0、10、30、50、100mg·L-1)浸种以及黑暗和光照条件下的发芽率和发芽势。结果表明:室温下仙人球种子吸水率在24h达到饱和为30%;最有利于仙人球种子萌发的GA3浓度为100mg·L-1,而6-BA对仙人球种子萌发作用不大;光照条件下的仙人球种子发芽率和发芽势明显高于黑暗条件下,推断仙人球种子属于喜光种子。

In order to understand the characteristics of cactus seed ,the effect of illumination ,GA3 and 6‐BA on its germination was studied .The water‐absorption percentage of seed were observed ,germination percentage and germination potentiality of seed were tested under light treatments （light and dark） ,different concentra‐tions of GA3 and 6‐BA （0 ,10 ,30 ,50 ,100 mg·L^‐1 ） .The results showed that the water‐absorption of cactus Fe‐rocactus horridus seed reached the maximal for 30% within 24 h .The most beneficial to cactus seed germina‐tion was 100 mg·L^‐1 GA3 ,and 6‐BA had no remarkable effect on seed germination;It also showed that illumi‐nation condition was significantly higher than dark condition on germination percentage and germination poten‐tiality ,w hich infer that cactus seed belonged to very bright seeds .