【摘要】 为了探究不同叶龄四倍体水稻移栽对其产量构成因素和农艺性状的影响,选择3种叶龄(5.5、6.5、7.5叶龄)于2017年在海南省对四倍体水稻T569进行移栽试验。结果表明,移栽时叶龄对四倍体水稻T569产量的影响较大,表现为5.5叶龄移栽水稻>7.5叶龄移栽水稻>6.5叶龄移栽水稻。与此同时,随着移栽叶龄增大,四倍体水稻T569的播始历期和全生育期延迟。3个处理T569四倍体水稻的产量构成因素呈曲线波动趋势,每穗粒数、每穗实粒数、结实率、千粒质量的波动趋势一致,均表现为5.5叶龄移栽水稻>7.5叶龄移栽水稻>6.5叶龄移栽水稻;有效穗数表现为7.5叶龄移栽水稻>5.5叶龄移栽水稻>6.5叶龄移栽水稻。更多还原

【Abstract】 In order to explore the effects of transplanting tetraploid rice T569 with different leaf ages on its growth and yield, three leaf ages(5.5, 6.5 and 7.5 leaf age) were selected to transplant tetraploid rice T569 in Hainan Province in 2017. The results showed that leaf age had a great influence on the yield of tetraploid rice T569, which was 5.5 leaf age > 7.5 leaf age > 6.5 leaf age. At the same time, with the increase of transplanted leaf age, the sowing time and the whole growth period of tetraploid rice T569 were delayed. The yield components of three treatments of T569 tetraploid rice showed a trend of curve fluctuation. And the fluctuation trends of grain number per panicle, grain number per panicle, seed setting rate and 1 000-grain quality were consistent. And all of them showed 5.5 leaf age > 7.5 leaf age > 6.5 leaf age. The effective panicle number was 7.5 leaf age > 5.5 leaf age > 6.5 leaf age.更多还原