Study on the Relationship Between Dry Matter Accumulation and Pod Formation in High-yielding Spring Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

2019年02期

Page:

236-243

Research Field:

Publishing date:

Info

Title:

Study on the Relationship Between Dry Matter Accumulation and Pod Formation in High-yielding Spring Soybean

Author(s):

FU Ji-hai¹; ZHANG Jian-xin¹; CHU Guang-hong¹; WANG Cong¹; ZHOU Fang-zhi²

（1.College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, China; 2.Moyu Test Station, Xinjiang Academy of Agricultural Sciences, Hotan 848100, China)

Keywords:

Soybean;  High yield;  Dry matter;  Flower pods;  Relationship

PACS:

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DOI:

10.11861/j.issn.1000-9841.2019.02.0236

Abstract:

To explore the relationship between dry matter accumulation and pod formation in high-yielding spring soybean at flowering and pod stages. The relationships between the dry matter increment and flowering period of 10 high-yielding soybean varieties (lines) and the number of flowering, pod and yield in the field were studied. The results showed that there was no significant correlation between dry matter increment and yield at flowering stage in the range of 4 527.4~5 734.2 kg·ha-1. There was a significant positive correlation between dry matter increment and yield at pod stage, and there was a significant positive correlation between total number of flowers and pods and yield, too. There was a quadratic curve relationship between dry matter increment and number of flowers at flowering stage as Y₁=-0.050 3X₁²+42.285X₁-5 312.2, R2=0.673 9*, and a linear relationship between dry matter increment and number of pods at flowering and pod stage as Y₂=0.090 4X₅+419.47, R2=0.719 4**. The dry matter increment of leaves was quadratic with the number of flowers at flowering stage. The dry matter increment of stems, leaves and petioles were quadratic with the number of pods at flowering pod stage. Too little or too much dry matter accumulation in stems and leaves was not conducive to the formation of flowers and pods at flowering and pod stages. Stems and leaves grow steadily at flowering stage, and pods grow rapidly at pod stage, which was beneficial to increase the number of flowers and pods. The above-ground dry matter increment was 4 373 and 7 801 kg·ha^-1 respectively, and dry pod weight accounted for 33.8% at flowering and pod stages respectively. The total number of flowers was 3 773.3×104, and the total number of pods was 1 127.3×104 pieces·ha^-1,the yield was 5 734.2 kg·ha^-1. The efficiency of dry matter flowering formation and dry matter pod formation was 8.63 and 1.45 g^-1, respectively.

References:

［1］赵团结, 盖钧镒, 李海旺, 等. 超高产大豆育种研究的进展与讨论［J］. 中国农业科学, 2006, 39(1):29-37. (Zhao T J, Gai J Y, Li H W, et al. Advances in breeding for super high-yielding soybean cultivars［J］. Scientia Agricultura Sinica, 2006, 39(1):29-37.)

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