|Table of Contents|

Effect of Sucrose on Root Morphology and Substance Accumulation at Soybean Seedling Stage under Low Phosphorus Stress(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2018年02期
Page:
239-245
Research Field:
Publishing date:

Info

Title:
Effect of Sucrose on Root Morphology and Substance Accumulation at Soybean Seedling Stage under Low Phosphorus Stress
Author(s):
KONG Ling-jian ZHU Qian SHAN Yu-zi XIE Fu-tiWANG Hai-ying ZHANG Hui-jun ZHAO Ming-zheAO Xue
(College of Agronomy, Shenyang Agricultural University, Shenyang 110866,China)
Keywords:
Soybean Low phosphorus stress Root Sucrose Biomass accumulation
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2018.02.023
Abstract:
In order to study the effect of exogenous sucrose on the response mechanism of soybean seedling to low phosphorus stress, this study was conducted with two different phosphorus(P) efficient soybeans, three P concentrations (0, 0.05 and 0.50 mmol?L-1) and two sucrose levels (0% and 1%), to investigate the traits of root morphology, sucrose content, P accumulation and plant biomass at soybean seedling stage. The results showed: For the low P efficient soybean, sucrose application enlarged the increment in root tip numbers of the high P efficient soybean than the low P efficient soybean, from 28.5% to 88.9%, compared with no sucrose application. Sucrose application increased the sucrose content, root phosphorus accumulation and the root biomass averagely by 15.5%, 7.2% and 26.6%, respectively. For the low P efficient soybean, the sucrose content, root phosphorus accumulation and the root biomass increased 18.4%, 31.7%, and50.6%, respectively. This result indicated that sucrose application affacted more significantly on biomass accumulation and nutrient absorption for the low P efficient soybeans.

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Last Update: 2018-04-02