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Growth Dynamic and Physiological Traits of High-yield Population for Shangdou 6(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年06期
Page:
937-940
Research Field:
Publishing date:

Info

Title:
Growth Dynamic and Physiological Traits of High-yield Population for Shangdou 6
Author(s):
ZHANG Qi
Shangqiu Academy of of Agricultural and Forestry Sciences，Shangqiu 476000，Henan,China
Keywords:
Shangdou 6; Population growth dynamic; Physiology indexes; Dry matter accumulation and distribution
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2012.06.017
Abstract:
Shangdou 6 is a new released summer soybean variety.In current research,we investigated the population growth dynamic and some physiological indexes of Shangdou 6 with the yield level of 3 784.5 kg·ha-1.Under the planting density between 181 350 and 191 850 plants·ha-1,pods per plant,seeds per plant and 100-seed weight was 65.4-72.3,137.3-145.2 and 16.6-17.2 g,respectively,soybean seed yield achieved 3 800 kg·ha-1.The growth rate conformed to “S” curve,and the fastest rate was from flowering to podding with plant height daily increased 2.12 cm.Leaf area increased and decreased steadily,the highest leaf area index(5.72)was obtained at podding.In whole growth period,the total photosynthetic potential was 2 636 831.83m?2·d,average net photosynthetic rate was 4.70 g·m-2·d-1.At maturity,dry matter accumulation was 12 393.56 kg·ha-1,seed to stem ratio was 0.52,economic coefficient was 0.31.

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Last Update: 2014-08-20