Canola and Oat Forage Potential Evaluation in Four Early Planting Dates  

作　　者：Juan Isidro Sánchez-Duarte David Guadalupe Reta-Sánchez JoséAntonio Cueto-Wong Arturo Reyes-González Esmeralda Ochoa-Martínez 

机构地区：[1]Campo Experimental La Laguna,Instituto Nacional de Investigaciones Forestales,Agrícolas y Pecuarias(INIFAP).Blvd.JoséSantos Valdez 1200 Pte.Col.Centro,Matamoros,Coahuila,CP 27440,México

出　　处：《Phyton-International Journal of Experimental Botany》2019年第4期435-448,共14页国际实验植物学杂志（英文）

基　　金：This research was funded by the Instituto Nacional de Investigaciones Forestales,Agrícolas y Pecuarias(México).

摘　　要：Canola and oat forage potential may be affected by climatic conditions when sown early.The objective of this study was to evaluate the forage canola and oat potential in four early sowing dates(September 11 and 25;October 9 and 23)during the 2012-2013 and 2013-2014 cycles in Matamoros,Coahuila,Mexico.Growth cycle duration,chemical composition,dry matter(DM),crude protein(CP),and net energy for lactation(NEL)yields were determined.High temperatures and long photoperiods affected crops seeded on September 11,accelerating growth and reducing canola(26.6%-31.7%)and oat(15.8%)DM yields.As of September 25,canola cv IMC 205 reached DM yields(7746 kg ha^(-1)-9276 kg ha^(-1))similar to those obtained by oat(8115 kg ha^(-1)-9507 kg ha^(-1)),while canola cv Hyola 401 obtained such yields only until October 23.Canola chemical composition was better than that found in oat,with higher CP,but lower acid detergent fiber(ADF)and neutral detergent fiber(NDF)contents.Canola equaled oat CP yields(972 kg ha^(-1)-1215 kg ha^(-1))in the first sowing date,while in the other three other canola sowings reached higher yields(1193 kg ha^(-1)-1889 kg ha^(-1)).As for NEL yields,no difference was observed between both species.The best sowing date for canola is from September 25 on,with CP production advantages over oat.

关 键 词：Avena sativa L. Brassica napus L.var.oleifera chemical composition dry matter yield NUTRIENTS 

分 类 号：F42[经济管理—产业经济]