不同穴距对水稻生育及产量影响

Impacts of the Space in the Row on Rice Growth Character and Yield

以超级稻盐丰47为材料,采用小区对比试验方法探讨了不同穴距对水稻生长发育及产量形成的影响。结果表明,随着穴距的加大,提高了植株分蘖发生率和成穗率能力,增强了植株抗病性。行穴距为33 cm×15 cm的X2处理,其单位面积收获穗数、成熟期干物质产量以及齐穗至成熟期干物质积累量占其籽粒产量的百分比均居首位,该处理产量为697.8kg/667 m2,比X3、X1、分别增产了2.3%和5.5%。X1、X2、X3处理的单株成穗数分别为3.9、4.5、4.8株。

Using Yanfeng47 to study the growth and yield of rice by comparative test,the results indicated that enlarge space in the row can enhance tillering rate and forming spike,raise the disease resistance of plant.When the distance between the rows which named X2 was 33 cm×15 cm,per unit panicles,dry matter yield of maturation period and the proportion of dry matter have the chief place,the yield was 697.8 kg/667 m2,increase yields by 6.7% and 3.9% than X1 and X3,the single-spike number of X1,X2 and X3 were 3.9,4.5 and 4.8.