|Table of Contents|

Effect of Sowing Dates on Ecological Traits of Spring Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2011年01期
Page:
73-78
Research Field:
Publishing date:

Info

Title:
Effect of Sowing Dates on Ecological Traits of Spring Soybean
Author(s):
NING Hai-long1;  SUN Pei-le2;  SONG Zhao-hua2;  CHEN Dong-sheng2;  SUN Xue-liang3;  ZHAO Li-dan3;  LI Wen-bin1
1. Soybean Biology Key Laboratory of Educational Ministry, Soybean Research Institute, Northeast Agricultural University, Harbin 150030;
2. Scientific Research Department of Academy of Land-reclaimable Sciences of Heilongjiang Province, Jiamusi 154007;
3. Keyuan Seed Ltd. Co. of Academy of Land-reclaimable Sciences of Heilongjiang Province, Jiamusi 154007, Heilongjiang, China
Keywords:
Spring soybean;  Sowing dates;  Ecological traits
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2011.01.0073
Abstract:
Ninteen spring soybean varieties spread from N 22.7°to N 50.2°were sowed on 4 dates in 2 years, respectively. The objective of present research is to study the effect of sowing dates on ecological traits of spring soybean. The results showed that plant heights and nods of main stem decreased as sowing date delayed and the degree of delayed amount increased gradually. Among all mature types, early-middle varieties showed the lowest plant height and nods of main stem. There were significant variations in aboveground biological weight, dry stem weight, pod shell weight, seed weight, among different maturity varieties. Effect of sowing date varied according to maturity types. Under delayed sowing date (sowing at June 11 and July 1) the ratio of seed to aboveground biological weight (economical coefficient ) increased for early and middle verieties early. Number of pod per plant, number of seed per unite area and 100-seed weight were increased for ueltra-early varieties.

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Last Update: 2014-09-11