不同种植方式对水稻颖花穗部分布影响,本论文为免费优秀的关于水稻论文范文资料，可用于相关论文写作参考。
水稻论文参考文献：
摘 要 为研究在不同种植方式下水稻穗颖花量的变化特征,设置4种不同田间种植方式,研究水稻稻穗颖花特征.试验发现：（1）稻穗颖花由穗基部向穗顶方向在稻穗呈抛物线型分布,穗中部颖花量最大；（2）随着单株水稻稻田生态空间增加,稻穗颖花总量及穗上、中、下部颖花量分别增加；稻穗一次枝梗数及其颖花量无明显增加；稻穗二次枝梗数及其颖花量和稻穗中、下部二次枝梗数增加及稻穗上、中、下部二次枝梗颖花量显著增加,其中杂交稻表现穗中、下部二次枝梗数增加,常规稻仅为穗中部二次枝梗数增加；（3）单株水稻颖花量和其籽粒重显著正相关（R2等于0.804）.研究结果表明不同种植方式对水稻颖花穗部分布影响主要表现在二次枝梗数总数及分布在穗中、下部位的二次枝梗数,和二次枝梗的颖花量及其在穗的下、中、上部位的分布数量.
关键词 栽培生态；宽窄行；穗库容量；一次枝梗；二次枝梗
中图分类号 S314 文献标识码 A
The Effect of Different Rice Planting Patterns on
Spikelet of Rice Panicle
SHEN Jiankai1*, XIE Zhenyu1, HE Zhizhou1, LIN Qiuyun1, YIN Ming1, YI Junliang2
1 Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, Hainan 571737, China.
2 Agricultural Committee of Yongzhou, Yongzhou, Hunan 425000, China
Abstract Four different rice planting patters were carried out in paddy field of Rice Experiment Base in Danzhou City of Hainan to reveal the changing characteristics of rice spikelets in different planting patters. The results showed that： （1）The quantity of rice spikelets was a parabola on rice panicle from rice panicle basal part to rice panicle top part. （2）With the field ecological space of individual rice plants increasing, the total spikelets, top spikelets, middle spikelets and basal part spikelets of rice panicle were increased, and the number of primary branches and their spikelets were not increased significantly, and the number of secondary branches and their spikelets were increased. The number of secondary branches of hybrid rice was increased by middle and basal part secondary branches, and the number of secondary branches of inbred rice was increased by middle part secondary branches only. （3）The quantity of rice spikelets per palnt was significantly positive correlated with grain weight （R2等于0.804）. Based on the study results, the distribution of the spikelets of rice panicle in different planting patterns mainly showed that the total number of secondary branches and their distribution in the middle and basal part of rice panicle, and the number of spikelets of secondary branches and their distribution in different parts of the rice panicle.
Key words Planting ecology； Wide-narrow row； Sink capacity； Rice primary branches； Rice secondary branches
doi 10.3969/j.issn.1000-2561.2016.02.010
中国是人口大国,也是水稻生产和消费大国,提高水稻产量是水稻科研的永恒主题,这也是中国人多地少的国情决定的必然选择[1].水稻产量可分解为库容量及库充实度,库容量受颖花量和粒重决定.高的库容是水稻高产的基础[2-3],为了提高水稻产量,育种工作者提出了大穗模式[4-6]、重穗模式[7]、 功能叶长[8]模式和后期功能型[9]模式等；栽培方面以扩大水稻库容、强源和库源协调已是栽培研究者的共识[10-11].由此可见,增加水稻库容量成为提高水稻产量重要途径之一.
结论：适合不知如何写水稻方面的相关专业大学硕士和本科毕业论文以及关于水稻种植的六个过程图论文开题报告范文和相关职称论文写作参考文献资料下载。
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