欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (7): 124-127.

所属专题： 油料作物； 园艺

• 农学 农业基础科学 • 上一篇    下一篇

南方红豆杉种子浸提液对油菜种子萌发与幼苗生长的影响研究

田胜尼1,孙启武2,张小平3,支琳1   

  • 收稿日期:2009-12-07 修回日期:2009-12-18 出版日期:2010-04-05 发布日期:2010-04-05

Studies on the effects of Taxus chinensis var.mairei seeds extracts on seeds germination and seedling growth of Brassica campestris

  • Received:2009-12-07 Revised:2009-12-18 Online:2010-04-05 Published:2010-04-05

PDF (PC)

707

摘要：

摘要：本文研究了南方红豆杉种子的种皮和胚乳（含胚）的不同浓度甲醇浸提液对油菜种子萌发和幼苗生长的影响。研究结果发现：种皮和胚乳不同浓度的提取液对油菜种子的萌发、幼苗的生长均存在一定的抑制作用。随着浸提液浓度的升高，油菜种子萌发率、幼苗的根长和茎长均逐渐下降。在相同的浓度中，油菜种子在胚乳浸提液中的萌发率比种皮浸提液低，油菜幼苗的根长在种皮浸提液中比胚乳浸提液中短。方差分析结果表明，不同处理组之间幼苗的根长存在显著的差异。结果表明红豆杉种皮和胚乳均有抑制物质存在，胚乳浸提液对油菜种子的萌发抑制作用较强，而种皮浸提液对油菜根长抑制作用强。

关键词: 拮抗细菌, 拮抗细菌, 鉴定, 枯草芽孢杆菌, 抑菌活性

Abstract:

Abstract: Seeds germination and seedlings growth of Brassica campestris in different concentrations of the methanol extracts from the seed coat and endosperm (including embryos) of Taxus chinensis var.mairei were studied in this paper. The results showed that there existed inhibition of seed coat and endosperm extract of different concentrations on the seed germination and seedlings growth in a certain extent. With the extract concentration increased, B.campestris seed germination rate, seedlings root length and stem length were gradually decreased. Germination rate of B.campestris in seed endosperm extracts was lower than that in the seed coat extracts in the same concentrations, and seedling root length in the seed coat extracts was shorter than that in the endosperm extracts. Analysis of variance results showed that significant differences was existed among different treatment groups for root length of seedlings. The research results indicated that inhibiting substances were existed both in the seed coats and endosperm for Taxus chinensis var. mairei seeds, and endosperm extracts strongly inhibited seed germination of B. campestris, while the seed coat extracts strongly inhibited root length of B. campestris.