Oryza sativaplant traits conferring competitive ability against weeds

Autor:	H. Ni, E. C. Paller, K. Moody, J. S. Lales, R. P. Robles
Rok vydání:	2000
Předmět:	Wet season Oryza sativa Agronomy Relative growth rate Dry season Plant Science Cultivar Interspecific competition Leaf area index Biology Weed Agronomy and Crop Science
Zdroj:	Weed Science. 48:200-204
ISSN:	1550-2759 0043-1745
DOI:	10.1614/0043-1745(2000)048[0200:osptcc]2.0.co;2
Popis:	This study was conducted in lowland fields at the International Rice Research Institute in the 1994 wet season and the 1995 dry season to determine Oryza sativa plant traits that confer competitive ability against weeds when pregerminated seeds are sown on puddled soil. Initial biomass (IB), crop growth rate (CGR), leaf area index (LAI), and biomass at tillering of O. sativa plants were associated with their competitiveness against weeds, whereas relative growth rate, net assimilation rate, and tillering capacity of O. sativa were not. Biomass at tillering affected weed biomass directly, and IB, CGR, and LAI indirectly affected weed biomass through O. sativa biomass. Biomass at tillering was the best predictor of modern cultivar competitiveness against weeds. Nomenclature: Oryza sativa L., rice.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5b720a0f4f4b727c3793f893839a1dc3 https://doi.org/10.1614/0043-1745(2000)048[0200:osptcc]2.0.co Zobrazit plný text záznamu