摘要
【目的】研究返青期醉马草（Achnatherum inebrians）株体和根际土壤不同部位、不同浓度水浸液对红豆草（Onobrychis viciaefolia）种子萌发的影响。【方法】采用培养皿滤纸法,研究返青期醉马草株体水浸液在0.2、0.1、0.05和0、025 g/m L和根际土壤水浸液在2.0、1.0、0.2和0.1 g/m L浓度下,对红豆草种子萌发的化感作用。【结果】醉马草水浸液对红豆草种子萌发指标由强到弱依次为萌发指数〉发芽势〉发芽率;叶水浸液的抑制作用大于根水浸液;根际土壤不同土层水浸液呈现出0~5、5~10和15~20 cm为促进作用,而10~15cm表现为抑制作用;不同浓度的株体水浸液化感效应均表现出抑制作用,根际土壤水浸液则表现为低促高抑作用。【结论】醉马草水浸液对红豆草种子萌发表现为抑制性,叶的水浸液抑制作用远强于根,且浓度越大抑制效应越明显。
[ Objective ] This project aims to explore the seed germination effect of different parts and different concentrations of aqueous extract from Achnatherum inebrians at the returning green stage on the Onobrychis viciaefolia[ Method] The method of a growth chamber in pot culture was used to research the seed germination of O. viciaefolia. [ Result ] Aqueous extracts from A. inebrians on germination index from strong to weak was the germination index 〉 germination potential 〉 germination rate. Different parts of strains aqueous extracts from A. inebrians showed leaf 〉 root. Rhizosphere of different soil aqueous extracts showed 0 - 5, 5 - 10 and 15 -20 cm for the promotion of the role, and 10 - 15 cm showed inhibition. Flooding the body with different concentrations of liquefied flu strains have shown inhibitory effect, rhizospheric soil is promoting high performance low inhibitory effect. [ Conclusion ] In a word, aqueous extracts from A. inebrians showed germination inhibition, leaf inhibition is far stronger than the root, and the greater the concentration, the more obvious inhibitory effect.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2016年第6期1129-1135,共7页
Xinjiang Agricultural Sciences
基金
公益性行业(农业)科研专项"草原主要毒害草发生规律及防控技术研究(201203062)"~~
关键词
返青期
醉马草
红豆草
种子萌发
returning green stage
Achnatherum inebrians
Onobrychis viciaefolia
seed germination
