栽培密度对两系稻Y两优5866产量的影响  

Effect of Planting Density on Yield of Two-line Hybrid Rice Y Liangyou 5866

作　　者：廖留英 LIAO Liu-ying(Fuzhou Asia Feng Rice Breeding Research Center,Fuzhou,Fujian 350012)

机构地区：[1]福州市亚丰水稻育种研究中心

出　　处：《福建稻麦科技》2019年第4期15-17,共3页Fujian Science and Technology of Rice and Wheat

基　　金：福建省科技星火计划项目(2018S0006)

摘　　要：为了探明两系杂交稻Y两优5866的适宜栽培密度,研究了3种栽培密度(每667m^2插2.0万丛、1.43万丛、1.22万丛、)对Y两优5866产量及产量相关性状的影响。结果表明:Y两优5866的有效穗数随着栽培密度的增大而增加,每穗总粒数、结实率随着栽培密度的增大而下降,而不同栽培密度对Y两优5866的千粒重的影响较小。栽培密度过低或过密,产量均降低,每667m^2栽培密度为1.43万丛(20.0 cm×23.3 cm)的产量最高,为615.33 kg,较2.0万丛(16.7 cm×20.0 cm)、1.22万丛(23.3 cm×23.3 cm)分别增产3.36%、15.81%,增产效果显著。In order to ascertain the suitable planting density of two-line hybrid rice Y Liangyou 5866,the effects of three planting densities(M1:20000 hills Per 667m2;M2:14300 hills Per 667m2;M3:12200 hills Per 667m2)on yield and yield related traits of Y Liangyou 5866 were studied.The results showed that with the planting density increasing,effective panicles number increased,total grain number per panicle and seed setting rate decreased,while the different planting density had little effect on the 1000-grain weight of Y Liangyou 5866.The planting density was too low or dense,and the yield was reduced.The highest yield of Y Liangyou 5866 showed in M2 by 615.33 kg Per 667m2,it increased by 3.36%and 15.81%in comparison with M1 and M3,the difference reached significant level.

关 键 词：两系杂交稻 Y两优5866 栽培密度 产量 

分 类 号：S511.048[农业科学—作物学]