Varietal improvement in rice allelopathy

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	Varietal improvement in rice allelopathy
	Chen, XH ; Hu, F ; Kong, CH
刊名	ALLELOPATHY JOURNAL
	2008
卷号	22 期号:2 页码:379-384
关键词	allelopathy Oryza sativa L. paddy weed management traditional breeding varietal improvement
ISSN号	0971-4693
通讯作者	Kong, CH, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
中文摘要	The development of rice allelopathy is to lessen reliance oil herbicides and reduce tabour input ill paddy ecosystems. The varietal improvement in rice allelopathy is all essential prerequisite for the practical application of paddy weed control. In this Study, allelopathic rice PI312777 was hybridized with non-allelopathic modern rice cultivars N28S, N9S, N2S, N13S, Peiai64S and Tehuazhan35 in South China. weed suppression and allelopathic index of these seven parents and their progeny plants were investigated in field and laboratory. Crosses between allelopathic and non-allelopathic rice varieties showed that allelopathic traits are quantitatively inherited and inheritance pattern of allelopathy in rice showed polymorphism in allelic interactions. particularly. allelopathic traits of N2S/PI312777 progeny plants were enhanced,really and there was positively-significant heterotic effect between allelopathic PI312777 and non-allelopathic N2S. Three rice lines of high grain yields and potent weed suppression in 17 derived from the crosses among those of N2S and PI312777 were selected as candidates for commercially acceptable allelopathic rice cultivars. These three allelopathic rice lines greatly reduced the emergence and growth of paddy weeds, besides no grain yield reduction Occurred than control. Allelopathic rice No 1, a commercially acceptable allelopathic rice cultivar, is developing in Guangdong Province, China.
学科主题	Agronomy
收录类别	SCI
语种	英语
WOS记录号	WOS:000259652600015
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54369]
专题	沈阳应用生态研究所_沈阳应用生态研究所_期刊论文
推荐引用方式 GB/T 7714	Chen, XH,Hu, F,Kong, CH. Varietal improvement in rice allelopathy[J]. ALLELOPATHY JOURNAL,2008,22(2):379-384.
APA	Chen, XH,Hu, F,&Kong, CH.(2008).Varietal improvement in rice allelopathy.ALLELOPATHY JOURNAL,22(2),379-384.
MLA	Chen, XH,et al."Varietal improvement in rice allelopathy".ALLELOPATHY JOURNAL 22.2(2008):379-384.