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水稻超稀植条件下品种(系)产量构成因子分析
Analysis of Yield Components in Rice Varieties (Lines) under Super Thin Planting Conditions
【摘要】 本文以东北农业大学和黑龙江省内其它育种单位新选育的及生产上广为利用的十四个不同类型、熟期的水稻品种(系),在超稀植条件下,进行单株产量构成因子的相关分析和遗传通径分析,结果认为,在超稀植条件下水稻高产育种方针是:将穗数控制在合适水平上同时,以保证大穗为基础,以争取较高的结实率为重点目标,并注意提高粒重。
【Abstract】 fourteen new paddy rice varieties (lines ) with different type and maturity date,developed by Northeast Agricultural University and other breeding institutes in Heilongjiang, were analysed for their yields and yield components under super thin planting conditions, using the correlation analysis and genetic path analysis method. The results indicat ed that the stratesy of paddy rice breeding for high yield under super thin planting conditions is as follows: the large panicle is as foundation and the high setting percentage as an impor taut target while the panicle number is controlled at a proper level; in addition. attention should be given in increasing grain weight
- 【文献出处】 黑龙江农业科学 ,HEILONGJIANG AGRICULTURAL SCIENCE , 编辑部邮箱 ,1994年06期
- 【分类号】S511.104.4
- 【被引频次】8
- 【下载频次】43