摘要
以不同品种甜秆饲用杂交高粱为研究材料,分析它们在不同种植密度下的生长发育动态,结果表明,不同种植密度影响高粱的生长发育,种植密度小的生长发育较快;不同品种比较发现,甜高粱杂交种比甜高粱生长发育速度快,具体表现为可见叶、展开叶发生速度较快,株高较高;从产生分蘖数的角度看,21A×126-524产生的分蘖数最多;从叶面积指数来看,甜高粱叶面积指数最大。经形态指标比较,得出其在不同密度下的生长发育规律,为饲用杂交甜高粱的合理种植提供理论依据。
Different kinds of sweet forage sorghum as research material, this paper analysied their growth dynamic in different planting density. We obtain the growth and development pattern of plant in a different planting density to povide theoretical basis for sweet sorghum reasonable planting. The results showed that： Sorghum planting density affected the growth and development and sorghum having small planting density could grow rapidly; Sweet sorghum hybrid grew fast than sweet sorghum, namely, the hybrid had faster visible leaves and expand leaves, and higher plant height. On view of the tiller number, 21A × 126-524 had the most tillers. On view of the leaf area index, sweet sorghum had the maximum leaf area index
出处
《山西农业科学》
2010年第9期23-26,共4页
Journal of Shanxi Agricultural Sciences
关键词
饲用
甜高粱
密度
品种
生长发育
Forage purposed
Sweet sorghum
Density
Variety
Growth and development
