|Table of Contents|

Effect of Phosphorous Application Rate on Biomass Accumulation and Its Distribution of Soybean with Different Phosphorus Efficient Genotype(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2015年06期
Page:
1020-1023,1028
Research Field:
Publishing date:

Info

Title:
Effect of Phosphorous Application Rate on Biomass Accumulation and Its Distribution of Soybean with Different Phosphorus Efficient Genotype
Author(s):
WU Jun-jiang1; 2;  WANG Jin-sheng2; LIU Li-jun2; LIN Wei-gang2 ; LIU Qing-li2
1.Heilongjiang Academy of Agricultural Sciences Postdoctoral Station, Harbin 150086, China;
2.Soybean Research Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
Keywords:
Soybean;  Genotype;  Phosphorous efficiency;  Biomass
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2015.06.1020
Abstract:
The effect of different phosphorus application rate on soybean biomass accumulation and distribution were analyzed by pot experiment in soil under high phosphorus-efficient and low phosphorus-efficient genotypes.The stem and leave biomass of high phosphorus efficiency genotypes increased with the increase of phosphorus application and reached peak values at P640 of phosphorus treatment, and the biomass of stems and leaves still increased for low phosphorus efficiency genotypes. The root cap ratio of high phosphorous efficiency genotypes was higher than that of low phosphorous efficiency with increase of phosphorous application. The dry biomass of stems, leaves, and roots reached peak values at P320 of phosphorus application treatment for high phosphorus efficient soybean genotypes and the dry biomass of stems, leaves, and roots increased significantly with the increase of phosphorous application for low phosphorus efficient genotypes at flowering stage. At podding stage, the leave dry biomass reached the peak values at P640 of phosphorus treatment, root dry biomass reached the peak values at P320 of phosphorus application treatment, and stem dry biomass increased with the increase of phosphorus application rate for high phosphorus efficient genotypes soybean varieties.Meantime, the dry biomass of stems, leaves, and roots increased with the increase of phosphorus application rate, the dry biomass of pod reached peak values at P640 of phosphorus application rate, and the dry biomass of root cap ratio decreased with the increase of phosphorus application rate. For the two genotypes, the dry mass of pods, leaves, and stems increased with the increase of phosphorous at filling stage, high phosphorous efficiency genotypes.The value size order of biomass was as follows: pods≥ stems≥ root≥ stems for the high phosphorus treatment. Under high P application treatment, dry weight of roots was higher than that of leaves for low phosphorus efficient genotype varieties, and root cap ratio was higher than under low P application treatment significantly.

References:

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Last Update: 2016-01-07