Ecological Character of Light and Temperature under Different Sowing Date in Spring Soybean (Glycine max L. Merill)(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

2010年06期

Page:

953-958

Research Field:

Publishing date:

Info

Title:

Ecological Character of Light and Temperature under Different Sowing Date in Spring Soybean (Glycine max L. Merill)

Author(s):

SUN Pei-le¹; 2; NING Hai-long¹; CHEN Dong-sheng²; SONG Zhao-hua²; FENG Tao²; GU Qing³; LI Wen-bin¹

1. Soybean Biology Key Laboratory of Educational Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin 150030， Heilongjiang；

2.Scientific Research Department, Academy of Land-reclaimable Sciences of Heilongjiang Province, Jiamusi 154007, Heilongjiang；

3. Jiamusi Yihai Seed Co. Ltd.， Jiamusi 154007, Heilongjiang, China

Keywords:

Spring soybean; Sowing date; Developmental periods

PACS:

S565.1

DOI:

10.11861/j.issn.1000-9841.2010.06.0953

Abstract:

In order to probe response of spring soybean to light and temperature, 19 spring soybean varieties bred from different locations arranging from N 22.7°to N 50.2°were sowed in 4 dates in 2 years, respectively. The result indicated that the whole growth length were affected by light and temperature and shortened as the sowing date delayed gradually. For early mature spring soybean varieties, vegetable growth stages (VGS) were not sensitive to long day light. When the varieties were sowed at delayed date, VGS were not shortened obviously. For late mature spring soybean varieties, VGS were readily influenced by long day light. The length of flowering were shortened as the sowing date delayed with short day light, and the shortened length of late mature varieties were bigger than that of early mature varieties. Among different varieties of all kind of podding habits, the shortened length of determinate soybean varieties were higher than that of semi-determinate ones, and the shortened length of sub-determinate soybean varieties were higher than that of indeterminate ones. The developmental period from seed expanding to maturing was not affected by short day light. This stage was influenced significantly by temperature and high temperature (especially when temperature is over 30℃) would shorten the maturity stage and low temperature (particular when day temperature is under 16℃ or night temperature is under 8℃) would extend maturity period.

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