期刊论文

Grain-filling Characteristics in Super Rice with Different Panicle Types

Zou, Y.-B.

中文

作物学报

0496-3490

2016

42

10

1516-1529

10.3724/SP.J.1006.2016.01516

(CARS-01-34):国家现代农业产业技术体系建设专项子课题水稻栽培与土壤岗位科学家项目 (CX2014B296):湖南农业大学研究生科研创新项目 (CARS-01-34):This study was supported by the China Agriculture Research System (CX2014B296):the Scientific Innovation Program for Graduate Stu-dents of Hunan Agricultural University

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为探明不同穗粒型超级稻产量构成特点、籽粒灌浆特性及其与后期生理指标的关系。以不同生育期品种准两优527、两优培九、Y两优1号、玉香油占、黄花占为试验材料,在大田栽培条件下分期播种以确保不同生育期品种在相似的温光条件下灌浆结实。结果表明,不同播期平均产量及其构成因子的品种间差异显著,以两优培九产量最高(9.47 t hm~(–2)),玉香油占产量最低(8.39 t hm~(–2))。依据每穗粒数和千粒重系统聚类分析,可将品种分为大粒型(准两优527)、中粒型(两优培九、Y两优1号)和小粒型(玉香油占、黄花占)。籽粒灌浆强度及持续时间的品种间差异明显。其中,大粒型品种籽粒灌浆起步快、强度大、峰值持续...

The objective of this study was to ascertain the characteristics of the grain-filling and physiological indexes after heading and the yield components of super rice with different panicle-grain types. An experiment with different sowing date was conducted using different growth duration varieties (Zhunliangyou 527, Liangyoupeijiu, Y-liangyou 1, Yuxiangyouzhan, and Huanghuazhan) under the field conditions to ensure the grain filling was under the similar temperature and solar radiation conditions. The grain yield and its components averaged in three sowing treatments displayed significant diffe...