YANG Qing,MA Wen-dong,LI Da-lin,et al.Effects of Different Density Weedy Rice Density on Population Characteristics and Panicle Traits of Cultivated Rice[J].HEILONGJIANG AGRICULTURAL SCIENCES,2016,(04):16-22.[doi:10.11942/j.issn1002-2767.2016.04.0016]
不同密度杂草稻对栽培稻群体特征及穗部性状的影响
- Title:
- Effects of Different Density Weedy Rice Density on Population Characteristics and Panicle Traits of Cultivated Rice
- 文章编号:
- 1002-2767(2016)04-0016-07
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 为进一步提高栽培稻产量,以杂草稻 wr04-12 和栽培稻沈265为材料,在大田条件下研究了不同密度杂草稻对栽培稻群体及穗部性状的影响情况。结果表明: 随着杂草稻密度的逐渐增加,栽培稻群体内的温度和照度明显降低,湿度升高;干物质生产显著降低,梗穗粒数和结实率随杂草稻密度的增大而逐渐降低。
- Abstract:
- In order to improve the yield of rice,taking weedy rice wr04-12 and cultivated rice Shennong 265 as materials,the effect of weedy rice density on population characteristics and the traits of panicle of cultivated rice population were studied in field experiment.The results showed that with the increase of the density of weeds,the temperature and illumination in the cultivated rice group were decreased obviously,and the dry matter production was significantly decreased,the number of the branches,and the seed setting rate of the branches decreased gradually.
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备注/Memo
收稿日期:2016-01-16