MA Rui,HUANG Cheng-liang.Effects of Shading After Heading on Yield and Grainfilling of Longjing 31[J].HEILONGJIANG AGRICULTURAL SCIENCES,2017,(02):34-36.[doi:10.11942/j.issn1002-2767.2017.02.0034]
抽穗后遮荫对龙粳31产量及籽粒灌浆的影响
- Title:
- Effects of Shading After Heading on Yield and Grainfilling of Longjing 31
- 文章编号:
- 1002-2767(2017)02-0034-03
- Keywords:
- Longjing31; shading; yield; SPAD; grain-filling
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 对水稻龙粳31抽穗后进行遮光处理,研究遮荫处理与未遮荫处理(CK)在产量及其构成、功能叶片的SPAD值和灌浆特性等方面的差异。结果表明:龙粳31抽穗后进行遮荫,主要影响千粒重和结实率两个产量因素,产量降低达到极显著水平;胁迫功能叶片SPAD值升高;遮光处理的强、弱势粒籽粒最大灌浆速率GRmax和平均灌浆速率GRmean均低于对照。
- Abstract:
- Shading on Longjing31 after heading,the differences of the yield and its composition,function leaf SPAD values and grainfilling characteristics between shading treatment and non-shading treatment were studied.The results showed that shading Longjing31 after heading affected the 1 000-grains weight and setting rate,and had the significant difference for the yield ; forcing function leaf SPAD values raised; the max grain-filling rate and the mean grainfilling rate of superior grains and inferior grains under shading treatment was lower than CK.
参考文献/References:
[1]Kobata T,Sugawara M,Sadanori T.Shading during the early grain filling period does not affect potential grain dry matter increase in rice[J].Agronomy Journal,2000,92: 411-417.
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备注/Memo
收稿日期:2017-01-04