摘要
试验于2001年在扬州大学以中粳稻香粳97-3017和中籼稻汕优63为材料,在不同的肥料运筹和栽插密度条件下,研究了水稻生育前期叶面积指数及其组成与产量的关系,主要结果如下:有效分蘖临界叶龄期、拔节期LAI和4叶及4叶以上茎蘖的LAI与产量均呈抛物线关系。有效分蘖临界叶龄期、拔节期LAI适宜,叶面积指数组成结构合理,才能获得高产。本试验条件下有效分蘖临界叶龄期和拔节期LAI适宜值分别为1.8～2.2、3.9～4.2,4叶及4叶以上茎蘖的LAI适宜值分别为1.6～1.8、3.5～3.8。
The relationship between constitution of LAI and yield was studied in early stage with Shan you 63 and xiang jing 97-3017,the results indicated: Yield showed parabolics cueve relationships with LAI of N-n and elongating stage. Yield also showed parabolic curve relationship with LAI of tillers of 4 leaf-age and older than 4 leaf-age at N-n and elongating stage. In this experiment,the appropriate indices of LAI 1.8～2.2,3.9～4.2, appropriate LAI of tillers of 4 lea-age and older than 4 leaf-age were 1.6～1.8,3.5～3.8 at N-n and elongating stage.
出处
《淮阴工学院学报》
CAS
2004年第1期71-76,共6页
Journal of Huaiyin Institute of Technology
