Show simple item record

dc.contributor.authorYang, Jianzh_CN
dc.contributor.authorLu, Chang-yizh_CN
dc.contributor.author卢昌义zh_CN
dc.date.accessioned2011-04-26T08:02:32Z
dc.date.available2011-04-26T08:02:32Z
dc.date.issued2010-06zh_CN
dc.identifier.citationAGRICULTURAL SCIENCES IN CHINA,2010,9(6):854-860zh_CN
dc.identifier.issn1671-2927zh_CN
dc.identifier.urihttp://dx.doi.org/doi:10.1016/S1671-2927(09)60164-4zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/1918
dc.description.abstractSoybean meal hydrolyzate (SMH) has been proposed for use as a natural preemergence herbicide However, the mechanism by which SM exerts its herbicidal activity remains unclear. In this paper, the herbicidal activities of SMH against perennial ryegrass (Lolium perenne L) under non-sterile and sterile conditions were evaluated and the relationship between the molecular weight of the ultrafiltration (UF) fractions of SMH and their herbicidal activities were investigated Besides, the ammonia content changes of the media of SMH treatments 7 d after incubation were also analyzed. The results showed that SMH inhibited the radicle growth of germinating L. perenne seeds in a dose-dependent manner under non-sterile condition However, SMH in the concentrations investigated increased the radicle length and shoot length by 14-17% and 11-15% respectively under sterile condition The ammonia contents in the SMH media at all treatments increased greatly from less than 0.01 mg L-1 to up to 11 86-41 37 mg L-1 after 7 d incubation under non-sterile condition. However, ammonia content did not change under sterile condition, proposing that the herbicidal activity might be caused by the free ammonia released from SMH by microbial activity. There was no difference on the perennial ryegrass radicle inhibition among the UF fractions of SMH on an equivalent N basis. It could be concluded that SMH exerted its herbicidal activity through the free ammonia released under non-sterile condition instead of by specific peptide(s) in SMH.zh_CN
dc.description.sponsorshipGuangdong Science and Technology Development Foundation, China [2008B080701043]zh_CN
dc.language.isoenzh_CN
dc.publisherELSEVIER SCI LTDzh_CN
dc.subjectsoybean meal hydrolysatezh_CN
dc.subjectherbicidal active mechanismzh_CN
dc.subjectammoniazh_CN
dc.titlePossible Mechanism Associated with Herbicidal Activity of Soybean Meal Hydrolysate (SMH)zh_CN
dc.typeArticlezh_CN


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record