【作者】 曾研华； 吴建富； 潘晓华； 石庆华； 朱德峰；

【Author】 ZENG Yan-Hua1,2,WU Jian-Fu1,﹟,PAN Xiao-Hua1,,SHI Qing-Hua1,ZHU De-Feng2 1 Key Laboratory of Crop Physiology,Ecology and Genetic Breeding,Ministry of Education/Key Laboratory of Crop Physiology,Ecology and Genetic Breeding of Jiangxi Province,Jiangxi Agricultural University,Nanchang 330045,China;2 State Key Laboratory of Rice Biology;China National Rice Research Institute,Hangzhou 310006,China

【机构】 中国水稻研究所水稻生物学国家重点实验室； 江西农业大学作物生理生态与遗传育种教育部重点实验室,江西省作物生理生态与遗传育种重点实验室；

【摘要】 于2010-2011年,以双季早稻陆两优996和双季晚稻五丰优T025为材料,研究了不同稻草还田方式对双季稻株型指标及产量的影响。结果表明,稻草还田提高双季早稻的产量,增产显著,但不利于晚稻的增产。改善双季稻上部三叶叶片株型特征,其叶部各指标关联紧密;上三叶叶片形态与水稻产量呈显著抛物线相关,且产量最高时,早稻稻草还田上三叶叶部指标值与叶部株型各最适值最为接近,晚稻的规律不明显。早稻稻草还田增强上三叶叶片生理活性,晚稻规律不明显;早、晚稻上三叶叶片生理活性与产量呈线性关系。更多还原

【Abstract】 The experiments were conducted with early rice Luliangyou 996 and late rice Wufengyou T025 during at double cropping rice seasons of 2010-2011.The results showed that straw incorporation could significantly increase the grain yield of early rice,but not effect for late rice.It ameliorated the characteristic of plant type in the top three leaves and its leaf every index had compactness relevance;There were a significance parabolic relationship of the grain yield with the top three leaves form,and there was approximate between the index values of the top three leaves on straw incorporation of early rice and its optimum values,but it was not obvious change for late rice.Straw incorporation of early rice strengthened the leaf physiology character of the top three leaves,and no impact for late rice;and a linear relationship of grain yield with it of early and late rice.更多还原