摘要： 为开发洋桔梗夏季育苗秋冬季开花栽培的促进抽薹技术,研究了种子低温春化处理及春化处理后育苗夜温对抽薹的影响.洋桔梗吸水种子低温春化处理可以有效促进发芽和抽薹,以7～10℃35 d暗处理促进抽薹的效果较好;种子低温春化处理后,育苗期间白天30～35℃,夜间20～23℃的温度管理,幼苗可以正常抽薹,但23～26℃以上夜间高温有去春化作用.表明洋桔梗夏季育苗秋冬季开花栽培,采用种子低温春化处理、控制苗期夜间高温,可以有效防止簇叶化,促进抽薹.
关键词:
洋桔梗,
吸水种子,
低温,
春化,
发芽,
簇叶化,
抽薹
Abstract: In order to develop the techniques of lisianthus bolting promotion in summer nursery,autumn and winter flowering cultivation(Eustoma grandiflorum(Raf.) Shinn.),effects of low temperature vernalization treatment of seeds and nursery night temperature after vernalization treatment on bolting were studied.Low temperature vernalization treatment on imbibed seeds of lisianthus promoted germination and bolting,the effect of 7-10℃ 35 d dark treatment for bolting was notable.After the low temperature vernalization treatment of imbibed seeds,normal seedlings bolting were more likely to occur during the nursery of day 30-35℃ and night 20-23℃ temperature management.But the nursery of 23-26℃ or above can cause devernalization.These results show that cultivation techniques of low temperature vernalization treatment on seeds and control of nursery night high temperature can effectively prevent rosette,and promote bolting in summer nursery,autumn and winter flowering cultivation of lisianthus.
Key words:
Iisianthus,
Imbibed seeds,
Low temperature,
Vernalization,
Germination,
Rosette,
Bolting
中图分类号:
赵习姮, 李进才, 西村安代. 洋桔梗种子低温春化处理对抽薹的影响[J]. 华北农学报, 2011, 26(3): 124-127. doi: 10.7668/hbnxb.2011.03.025.
ZHAO Xi-heng,LI Jin-cai,NIXIMURA Yasuyo. Effects of Low Temperature Vernalization Treatment of Seeds of Lisianthus on Bolting[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(3): 124-127. doi: 10.7668/hbnxb.2011.03.025.