摘要
研究了不同浓度的白三叶(Trifolium pretens L.cv.Haifa)浸提液对白菜、紫花地丁和四季红罗卜3种受体植物种子的萌发率、幼苗生长特性和超氧化物歧化酶(SOD)活性以及丙二醛(MDA)含量的影响。用白三叶浸提液处理3种植物的种子,并进行培养,统计种子萌发率和幼苗生长特性,测定幼苗的超氧化物歧化酶(SOD)活性和丙二醛(MDA)含量。白三叶浸提液对受体植物种子萌发率和幼苗生长特性均有不同程度的抑制作用,其中对白菜的抑制性能最大,紫花地丁次之,四季红罗卜最小;SOD活性均小于对照组,且随浸提液浓度的增加而逐步降低,而MAD含量均高于对照组,且随浸提液浓度的增加而逐步增大。白三叶作为常用优质牧草和绿化植物,研究其化感抑制作用,其结果对发展高产优质高效牧草生产具有重要价值,对建立合理种植制度、减少化感作用的负效具有重要意义。
To study the influence of different concentration extract of Trifolium pretens L.cv.Haifa on the seed gremination ratio,seedling growth character,SOD and MAD of Viola yedoensis Makino.,Brassica pekinensis L.and Raphanus sativus cv.Sijihong.The results showed that the extract of Trifolium pretens had different inhibiting effect on seed gremination ratio and seedling growth.Compared to the control group,the strongest inhibition was Brassica pekinensis L.,Viola yedoensis Makino.was the second,and Brassica pekinensis L.was the least.With the increasing of extract concentration,the SOD activity of seedling gradually degraded,and MAD content gradually augmentated.Trifolium pretens L.cv.Haifa was as a forage and afforest plant,it was very important to study its allelopathic effect for producing high quality and efficient forage,and for establishing the reasonable planted system and reducing the negative effects of allelopathy.
出处
《种子》
CSCD
北大核心
2011年第2期21-25,共5页
Seed
基金
贵州省教育厅自然科学研究项目(黔教科2008084)
贵州省科技基金项目(黔科合J字[2009]2096号)
关键词
白三叶
抑制效应
化感作用
Trifolium pretens L.
suppressing effect
allelopathy
