Biology and Control of Creeping Rivergrass (Echinochloa polystachya) in Rice

Autor:	Wei Zhang, R. Matthew Griffin, Eric P. Webster, David C. Blouin
Rok vydání:	2008
Předmět:	Biomass (ecology) biology Perennial plant Stolon Sowing Plant Science Echinochloa biology.organism_classification Echinochloa crus-galli chemistry.chemical_compound Agronomy chemistry Glyphosate Shoot Agronomy and Crop Science
Zdroj:	Weed Technology. 22:1-7
ISSN:	1550-2740 0890-037X
Popis:	Rice was planted at 78 kg/ha with different densities of creeping rivergrass. Creeping rivergrass at stand densities (SD) of 10,000 to 70,000 stolon segments/ha produced 5.4 to 6 stolons per introduced segment; however, 130,000 through 520,000 SD produced 1.4 to 2.1 stolons per segment. Stolon production was 60,000 plants/ha and increased to 760,000 stolons/ha at planting densities of 10,000 to 520,000/ha, respectively. The 260,000 and 520,000 SD produced similar stolon lengths of 217 and 318 km/ha; however, stolon length was less at lower SD. Total node production was 290,000 nodes per ha with an average of 29 nodes per segment in the 10,000 SD and 5.4 to 9.8 nodes per segment with 70,000 or greater SD. Total biomass increased as SD increased. Creeping rivergrass shoot emergence from soil was 31, 63, 44, and 25% for segments planted at 0, 1.3, 2.5, and 5 cm deep, respectively. In a greenhouse study, glyphosate at 1,260 g ai/ha controlled creeping rivergrass 91% and biomass production was 19% of the nontr...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0c3645dc7459ed3e6263e6e713954662 https://doi.org/10.1614/wt-06-170.1 Zobrazit plný text záznamu