CAJ | 학술논문

为水稻品种新优188筛选最适宜的栽插密度,通过不同密度处理,研究大田条件下栽插密度对新优188产量构成的影响。结果表明：新优188产量随密度（18.0万~30.0万穴/hm2）逐渐增加,在30.0万穴/hm2密度下产量最高,但在33.0万穴/hm2产量又下降,各密度处理间差异达极显著水平。在产量构成中有效穗数受影响最大。新优188较为适宜的栽插密度在30.0万穴/hm2左右,各产量构成因素之间可发挥最大增产潜力。
위수도품충신우188사선최괄의적재삽밀도,통과불동밀도처리,연구대전조건하재삽밀도대신우188산량구성적영향。결과표명：신우188산량수밀도（18.0만~30.0만혈/hm2）축점증가,재30.0만혈/hm2밀도하산량최고,단재33.0만혈/hm2산량우하강,각밀도처리간차이체겁현저수평。재산량구성중유효수수수영향최대。신우188교위괄의적재삽밀도재30.0만혈/hm2좌우,각산량구성인소지간가발휘최대증산잠력。
The research aimed to screen the suitable planting density for Xinyou 188.To investigate the effect of planting density on the yield,we treated Xinyou 188 at different planting density under a paddy field.The results showed that yield of Xinyou 188 rose up with the gradual increased density from 180 000 to 300 000 points per hectare and reached the highest at the density of 300 000 points per hectare,but declined at 330 000 points per hectare.The differences were highly significant among the different density treatment.The number of effective panicles was the most important component in yield structure.The appropriate planting density of Xinyou 188 was about 300 000 points per hectare.The factor that influenced yeild could maximize the potential to increase the production.