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Effects of SRI technique on population quality after heading stage and yield formation in rice  [2006]

Chen Huizhe Zhu Defeng Rao Longbing

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Abstract
The relationship between population quality after heading stage and yield formation under SRI cultivation pattern was studied systematically using the high yield rice Liangyoupeijiu and Ilyou7954 as material. The results showed that SRI cultivation had no advantage over the conventional cultivation in the ears number per hm. , however, SRI could improve population quality after heading stage and formed big spikelet. Adopting the proper plant density under SRI condition, there are good gesture from inverse 1. t leaf to 3. d leaf at heading stage and leaf area decrease rate was low from heading stage to 20 days after flowering. SRI had obviously advantage over the conventional cultivation in photosynthesis and the accumulation matter with the higher weight of the stem and sheath,availing to increase grains per panicle and seed setting rate,and to form big spikelet.
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Other subjects

  • poblacion vegetal
  • intensive farming
  • plant population
  • agriculture intensive
  • oryza sativa
  • rendimiento
  • explotacion agricola intensiva
  • yields
  • population vegetale
  • rendement
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Other information

Language : Chinese

Type : Journal Article

In AGRIS since : 2007

Volume : 25

Issue : 5

Start Page : 483

End Page : 487

All titles :

" 强化栽培对水稻后期群体质量及产量形成的影响 "

" Effects of SRI technique on population quality after heading stage and yield formation in rice "