Effects of Various Phytohormones on Seed Germination and Seedling Growth of Leymus Chinensis  

不同植物激素对羊草种子萌发和幼苗生长的影响(摘要)(英文)

作　　者：焦德志[1] 龚孟[1] 潘学岩[2] 朱蕾[2] 

机构地区：[1]齐齐哈尔大学生命科学与工程学院,黑龙江齐齐哈尔161006 [2]齐齐哈尔市第一中学,黑龙江齐齐哈尔161000

出　　处：《Animal Husbandry and Feed Science》2009年第4期21-24,共4页动物与饲料科学（英文版）

基　　金：Supported by Scientific Research Fund of Heilongjiang Provincial Education Department ( No. 11531424)~~

摘　　要：[Objective] To explore the effects of various phytohormones at different concentrations on the seed germination and seedling growth of Leymus Chinensiss （ L. chinensis）. [ Method ] The seeds of two varieties of L. chinensis were respectively treated with four kinds of phytohormone [ gibbereUin （ GA ）, 2,4-D, naphthalene acetic acid and 6-benzyl aminopurine （6-BA） ] for the observation of seed germination. The seedling growth of natural L. chinensis was observed after the seedlings were respectively treated with these phytohormones. [Result] The germination percentage of L. chinensis was promoted by the GAs and 6-BA at low concentration and inhibited by these two kinds of phytohormone at high concentration. Moreover, they promoted the seedling growth of L. chinensis, and the GA3 had better effect. However, the NAA and 2,4-D at any concentration inhibited the seed germination and seedling growth of L. chinensis. [ Conclusion] The various phytohormones have different effects on the seed germination and seedling growth of L. chinensis.[Objective] To explore the effects of various phytohormones at different concentrations on the seed germination and seedling growth of Leymus Chinensiss （ L. chinensis）. [ Method ] The seeds of two varieties of L. chinensis were respectively treated with four kinds of phytohormone [ gibbereUin （ GA ）, 2,4-D, naphthalene acetic acid and 6-benzyl aminopurine （6-BA） ] for the observation of seed germination. The seedling growth of natural L. chinensis was observed after the seedlings were respectively treated with these phytohormones. [Result] The germination percentage of L. chinensis was promoted by the GAs and 6-BA at low concentration and inhibited by these two kinds of phytohormone at high concentration. Moreover, they promoted the seedling growth of L. chinensis, and the GA3 had better effect. However, the NAA and 2,4-D at any concentration inhibited the seed germination and seedling growth of L. chinensis. [ Conclusion] The various phytohormones have different effects on the seed germination and seedling growth of L. chinensis.

关 键 词：PHYTOHORMONE l.eymus Chinensis Germination Seedling growth 

分 类 号：S543.9[农业科学—作物学]