Heterosis contributes greatly to crop production,but the genetic basis of heterosis is not fully understood.To identify ......

Soil productivity (SP) without extal fertilization influence is an important indicator for the capacity of a soil to sup......

Four wheat cultivars were used to study the effects of delayed nitrogen topdressing on popula-tion structure, grain yiel......

When being planted in wide areas in southern China (23°23′- 33°23′ N, 98°35′- 120°19′ E, sea level above 2.7 - 1......

A japonica variety and its iso-allelic mutant with high tillering ability were used to investigate the differences in gr......

Rice production in Pakistan is constraint by many factors pertaining to prevalent planting techniques. A research on the......

该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......

Light intensity is one of the most important environmental factorsthat determinethe basic characteristics ofrice develop......

选取1993～1997年对国家粮食总产量贡献率在1%以上、代表国家粮食总产97.2%的23个省(区)为建模对象,根据这23个省(区)1961～1995年的单......