文献类型: 外文期刊
第一作者: Zhang, ZB
作者: Zhang, ZB;Zhou, YJ;Lu, YL;Li, D;Yu, LQ
作者机构:
关键词: Allelopathy;Chinese rice germplasm;Echinochloa crusgalli var mitis;I-Kung-Pao
期刊名称:ALLELOPATHY JOURNAL ( 影响因子:0.962; 五年影响因子:0.99 )
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年卷期:
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收录情况: SCI
摘要: Barnyardgrass is a major global weed that reduces the rice yield by 30% to 50% and may even lead to crop failure (1.3), Use of herbicides for barnyardgrass control has brought many problems viz., environmental contamination, herbicide resistant weedsand contamination of agricultural products, which has endangered the sustainable development of agriculture (14). Since last decade, ecological methods for weed control are being developed. Research on rice allelopathy against weeds began in late 1980'swas encouraging and developed fast (2). American rice scientists evaluated 17,000 rice accessions from USDA-ARS collection and rdeentified 'PI 312777' as most allelopathic accession against bamyardgrass (1). Hassan identified 30 rice cultivars, which inhibited the bamyardgrass growth by 50% to 90% (3). Olofsdotter identified 11 rice cultivars that reduced the dry-weight of bamyardgrass more than 50% in drought seasons and 21 cultivars that suppressed the bamyardgrass growth more than ,50% in rainy seasons (7,8,9), Kong (4,5,6) isolated, identified and characterized rice allelochemicals as glucosides of resorcinol, flavone and hydroxamic acid that could degrade quickly into sugar, phenolic and fatty acids when released into the environment under microbial and acidic medium Wang identified the variety 'Zao-Geng 911' with allelopathic potential against bamyardgrass from 41 rice accessions in Lab and in paddy fields (7). Yu identified ,3 cultivars that showed allelopathic potential from 130 rice accessions in Lab (12).
分类号: Q94
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