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Effect of Phosphorus and Rhizobium on Growth and Nodule Development in Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年02期
Page:
271-274
Research Field:
Publishing date:

Info

Title:
Effect of Phosphorus and Rhizobium on Growth and Nodule Development in Soybean
Author(s):
MIAO Shu-jie; QIAO Yun-fa; HAN Xiao-zeng
Northeast Institute of Geography and Agricultural Ecology，CAS，Harbin 150081，Heilongjiang，China
Keywords:
Phosphorus; Rhizobium; Soybean; Nodule development
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2009.02.0271
Abstract:
To study the interaction of phosphorus(P)level and rhizobium content on nodulation and nodule development in soybean，soybean was grown in nutrient solution culture for 25 days.We designed three solution P levels as P1-0，P2-4 and P3-30(μmol PL-1)，and three rhizobium contents were R1-102，R2-103.5?and R3-105（CFUmL-1）.Soybean biomass and nodulation characters were measured after treatment.Results showed that P had little effect on total plant biomass，however，affected the ratio of root to shoot in this experiment.Nodule initiation increased as rhizobium content increase，but P deficiency inhibited nodule initiation，so nodule number was lower in low phosphorus treatment.From P1 to P3 level，the ratio of nodule initiation to nodule was 79%，86% and 100%.Relocate of biomass to nodule was affected by P concentration in nutrient solution.P concentration in tissues decreased as growing，which was in an order of nodule>root>shoot；N concentration was in an order of nodule>shoot>root.All these suggested that the interaction of phosphorus level and rhizobium content had important effect on soybean growth and nodule formation.

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Last Update: 2014-10-03