摘要
以常规早籼稻品种"嘉育253"为材料,在机插条件下,研究了单位面积穴数和每穴本数对产量的影响。结果表明,栽插穴数、穴数与本数两者互作对产量的影响分别达到极显著和显著水平,每穴本数对产量的影响不显著。通径分析表明,单位面积有效穗数对产量的直接作用最大,机插早籼稻产量提高主要依靠单位面积有效穗的增加。综合试验结果看,温州地区常规早籼稻品种机插的群体起点以27万穴/hm2(30 cm×12 cm)、每穴5.4本、基本苗数137万/hm2左右为宜。
Taking conventional early indica rice variety ＂Jiayu 253＂as the tested material,the effects of the transplanted hills per unit area and seedlings per hill on the yield were studied under the condition of mechanically transplanting.The results showed that the transplanted hills per unit area had very significant influence on the yield（P0.01）,the interaction between the transplanted hills per unit area and seedlings per hill had significant influence on the yield（P0.05）,while the seedlings per hill had no significant effect on the yield.Path analysis indicated that the number of productive ear per unit area had the greatest direct contribution to the yield,so the yield increase of mechanically-transplanted early indica rice mainly relied on the increase of the productive ears per unit area.Comprehensively considering the above experimental results,it was concluded that the suitable population starting point of mechanically-transplanted conventional early indica rice in Wenzhou area was 27×104 hills per hectare（30 cm× 12 cm）,5.4 seedlings per hill and about 137×104 basic seedlings per hectare.
出处
《江西农业学报》
CAS
2011年第11期48-50,共3页
Acta Agriculturae Jiangxi
基金
浙江省温州市2007年度科技项目(N20070004)
浙江省苍南县2009年度科技计划项目(2009N02)
关键词
机插早稻
栽插穴数
栽插本数
基本苗数
Mechanically-transplanted early rice
Number of planted hills
Number of seedlings per hill
Basic seedlings
