Establishment of Quantitative Equation of ‘Three Combination Structure’ and Its High-yield Pathway for Northeast Spring Soybeans(PDF)
《大豆科学》[ISSN:1000-9841/CN:23-1227/S]
- Issue:
- 2013年06期
- Page:
- 773-777
- Research Field:
- Publishing date:
Info
- Title:
- Establishment of Quantitative Equation of ‘Three Combination Structure’ and Its High-yield Pathway for Northeast Spring Soybeans
- Author(s):
- -
- ?（1.Agronomy College of Shenyang Agricultural University，Shenyang 110161，China;2.Crop Tillage and Cultivation Institute of Heilongjiang Academy of Agricultural Sciences，Harbin 150086，China;3.Institute of Crop Science，Chinese Academy of Agricultural Sciences，Beijing 100081，China）
- Keywords:
- Spring soybeans; Three combination structure; Yield performance
- PACS:
- -
- DOI:
- 10.11861/j.issn.1000-9841.2013.06.0773
- Abstract:
- ?The highyield pathway has been put forward for grain crops such as maize（Zea mays L.）,rice（Oryza sativa L.）and wheat（Triticun aestivum L.）with the concept of ‘three combination structure quantitative expression’.In this paper，we analyzed the quantitative equation and relationship between its parameters ‘three combination structures’ using the normalized dynamic models of relative LAI,with three drought resistant variety Kangxian 7，Heinong 65 and Suinong 15 as materials.The relative LAI dynamic quantitative equation were all accorded with y=（a+bx）/（1+cx+dx2）in three varieties.The dynamic models,photosynthetic and yield component parameters had the same tendency in different years in the same variety,while varied significantly among varietis. Highyield varieties had higher seed No.per plant（SN）and mean net assimilation rate（MNAR）.Seed yield positively correlated with mean crop growth rate（MCGR）,harvest index（HI）,MNAR,total seed number per m2（TSN）,SN and seed weight per plant,especially for MCGR and HI.Hence,it is possible to enhance soybean yield by increasing mean crop growth rate and harvest index.
Last Update: 2014-02-28