移栽秧龄对机插杂交稻产量及群体质量的影响

为探明中、迟熟型杂交稻品种在不同机插秧龄条件下的适应性及品种间生长发育及产量的差异，研究了不同移栽秧龄对机插中、迟熟杂交稻产量及群体质量的影响。结果表明，21 d适龄移栽杂交稻的产量、各生育时期的群体茎蘖数、分蘖成穗率、叶面积指数、抽穗后剑叶光合、群体透光、抽穗期的有效叶面积、高效叶面积、有效叶面积率以及高效叶面积率显著大于迟栽处理。品种选择上，迟熟杂交稻品种无论在产量还是在各群体指标方面均优于中熟品种，尤其是迟熟型中F优498分蘖力中等，株型好，这些特征改善了机插条件下杂交稻群体光合生产和通风透光状况，穗型大且穗粒数较多，茎蘖成穗率较高，秧龄弹性较大，可适当延长秧龄到28 d也能保持较高产量...

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Bibliographic Details
Published in农业工程学报 Vol. 30; no. 12; pp. 18 - 25
Main Author 贾现文 朱起超 杨志远 孙永健 郭翔 石勇 马均
Format Journal Article
LanguageChinese
Published 四川省眉山市农业技术推广站，眉山 620010%山东省阳谷县农业技术推广中心,阳谷,252300%四川农业大学水稻研究所/农业部西南作物生理生态与耕作重点实验室,温江,611130%四川省农业气象中心,成都,610071%四川省眉山市农业技术推广站,眉山,620010 2014
四川农业大学水稻研究所/农业部西南作物生理生态与耕作重点实验室，温江 611130
Subjects
产量
农作物
机插
杂交稻
生长
秧龄
移栽
群体质量
产量
population quality
crops
移栽
生长
秧龄
机插
杂交稻
农作物
群体质量
yield
mechanized transplanting
growth
seedling age
transplants
hybrid rice
Online AccessGet full text
ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2014.12.002

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Summary:为探明中、迟熟型杂交稻品种在不同机插秧龄条件下的适应性及品种间生长发育及产量的差异，研究了不同移栽秧龄对机插中、迟熟杂交稻产量及群体质量的影响。结果表明，21 d适龄移栽杂交稻的产量、各生育时期的群体茎蘖数、分蘖成穗率、叶面积指数、抽穗后剑叶光合、群体透光、抽穗期的有效叶面积、高效叶面积、有效叶面积率以及高效叶面积率显著大于迟栽处理。品种选择上，迟熟杂交稻品种无论在产量还是在各群体指标方面均优于中熟品种，尤其是迟熟型中F优498分蘖力中等，株型好，这些特征改善了机插条件下杂交稻群体光合生产和通风透光状况，穗型大且穗粒数较多，茎蘖成穗率较高，秧龄弹性较大，可适当延长秧龄到28 d也能保持较高产量。中熟型中辐优838虽然穗数多，但其穗粒数限制了产量的增加，且其分蘖力过强，导致无效分蘖过多，对机插产量的发挥造成一定影响。研究结果为生产中选择机插适栽秧龄及高产杂交稻品种提供参考。
Bibliography:As a modern and high efficient rice production mode, rice mechanized transplanting has been a principle development trend in China. Subject to geographical conditions, the development of rice mechanized transplanting in Sichuan, the largest rice production region in southwest China, is very slow, only account for 6.2%of total rice planting area in 2012, while the average ratio was 26%across the country. So the development of rice mechanized transplanting in Sichuan is urgent and meaningful. The optimal seedling age and variety is an essential problem should be solved. In this experiment, the effects of different seedling ages on yield and population quality of middle and late maturing hybrid rice in mechanized transplanting were studied. The experiment was conducted in Wenjiang, a representative plain region in Sichuan, from April to October during 2011 growing season. The experiment was designed as split plot with seedling age as main plot and variety as sub-plot with three replicates. Three different seedli
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.12.002