[1]梁银丽.不同类型小麦品种干物质积累与产量形成的关系[J].水土保持研究,1988,(02):110-116.
Liang Yinli.The Relationship Between Dry Matter Accumulation and Grain Yield in Different Ecological Types of Winter Wheat[J].Research of Soil and Water Conservation,1988,(02):110-116.
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Liang Yinli.The Relationship Between Dry Matter Accumulation and Grain Yield in Different Ecological Types of Winter Wheat[J].Research of Soil and Water Conservation,1988,(02):110-116.
不同类型小麦品种干物质积累与产量形成的关系
《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]
卷:
期数:
1988年02期
页码:
110-116
栏目:
出版日期:
1900-01-01
- Title:
- The Relationship Between Dry Matter Accumulation and Grain Yield in Different Ecological Types of Winter Wheat
- 摘要:
- 在高产条件下,冬性春性类型小麦品种各自适期播种,相对早播的冬性半冬性类型的总干物质积累量(简称DMA,后同)高于春性类型;生育前期冬性、半冬性的DMA高于春性,后期春性半冬性高于冬性.茎秆光合产物输出率、成熟期籽粒干重占单株总干重的百分率表现为春性>半冬性>冬性,而基秆干重所占的百分率则呈相反趋势.同期播种,总DMA及籽粒产量都有春性高于冬性、半冬性的趋势.春性及半冬性品种的籽粒干重日增长量和籽粒相对生长率都明显高于冬性品种.因而春性及半冬性品种单株粒重大,经济产量高.本文提出在冬性春性类型品种交叉地区,
- Abstract:
- Six cultivars were chosen for the study on the relationship between dry matter production and grain yield in different ecological types of wheat(T.aestivum).CV.Fushe No.63 for winter type;Xiannong No.68-3 and Xian No.8 for semi-winter type;Zheng yin No.1,Xinong No.77(2) and Yangshi No.9 for spring type.The results showed that the production of total dry matter for winter and semi-witer types was more than that for spring type under their reasonable sowing season respectively.But the percentage of dry matter production until noding was higher in winter and semi-winter types than that in spring type,and lower in winter type than those in semiwinter and spring types after noding development stage.When all types were planted at the same time,the dry matter production and grain yield tended to be higher in spring type.Grain relative growth rate,grain weight and percentage of dry grain weight accounting for total dry matter per plant were the highest in spring type,higher in semiwinter type and lowest in winter type.Grain yield expressed possitive correlation with net accumulation of dry matter during the developing period after heading.The reason for the differences in accumulation and distribution of dry matter among those ecological types resulted from leaf area duration(LAD),mean relative growth rate RGR,mean net assimilation rate(NRA),leaf area rate(LAR),top four leaf area and net rate of photosynthesis(PN) of flag leaf on the main stem.It suggested that the ecological types of spriagness and semiwinterness with dwarf or semidwarf cultivars may have potential for higher grain yield in certain winter wheat regions.
更新日期/Last Update:
1900-01-01