|Table of Contents|

Influence of K+、Na+and HCO-3 on Photosynthesis of Soybean Seedlings(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年03期
Page:
436-439
Research Field:
Publishing date:

Info

Title:
Influence of K+、Na+and HCO-3 on Photosynthesis of Soybean Seedlings
Author(s):
HAO Jian-jun; HUANG Chun-hua; LU Huan; YU Yang
College of Biological Science and Technology,Shenyang Agricultural University,Shenyang 110866,Liaoning,China
Keywords:
KHCO3; NaHCO3; Soybean seedlings; Photosynthesis; Rubisco
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2012.03.020
Abstract:
In this study,seedling of Tiefeng 31 were sprayed with 1500 mg·L-1 KHCO3 and NaHCO3,respectively,and determined the photosynthetic rate,soluble sugar,photosynthetic pigment and other physiological indexes to explore the effect of K+,Na+ and HCO-3on photosynthesis of soybean seedlings.The results showed that:compared with water spraying control,K+,Na+ and HCO-3improved photosynthetic rate,the content of soluble sugar,chlorophyll a, chlorophyll b, and the ratio of chlorophyll b in total chlorophyll;promoted soybean seedlings photosynthesis by providing more assimilatory power to dark reactions carbon fixation;and enhanced the activities of ATP enzyme,photophosphorylation and PEPC.In addition,HCO-3played a more important role in promoting chlorophyll b synthesis and improving photosynthetic rate.NaHCO3 significantly increased the content of Rubisco.For other physiological indexes but the content of Rubisco,the promotion effect of K+ was higher than Na+.

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Last Update: 2014-08-16