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Effects of La(Ⅲ) and Acid Rain on Growth of Soybean Seedling(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年04期
Page:
744-746,750
Research Field:
Publishing date:

Info

Title:
Effects of La(Ⅲ) and Acid Rain on Growth of Soybean Seedling
Author(s):
FAN Jin-feng; ZENG Shu-ping; LIANG Chan-juan; ZHOU Qing
Key Laboratory of Industrial Biotechnology，Ministry of Education，Jiangnan University，Wuxi 214122，Environment and Civil Engineering，Jiangnan University，Wuxi 214122，Jiangsu，China
Keywords:
Lanthanum (Ⅲ); Acid rain; Combined treatment; Soybean seedling; Growth
PACS:
X517;Q945
DOI:
10.11861/j.issn.1000-9841.2009.04.0744
Abstract:
In order to explore combined effects of growth of soybean seedling to acid rain and rare earth，soybean seedling were subjected to Lanthanum (Ⅲ) and simulated acid rain.Response of growth of soybean seedling’s underground and above-ground organs to combined treatments of Lanthanum (Ⅲ) and acid rain were studied.The results indicated that RE1(20 mgL-1)promoted soybean seedling growth，but that RE2(60 mgL-1)，RE3(100 mgL-1)and RE4(500 mgL-1) inhibited growth of soybean seedlings.The sequence of inhibition degree was RE4＞RE3＞RE2.Under acid rain (AR1/pH2.5，AR2/pH3.5 and AR3/pH4.5) stress alone，all growth indices were lower than those of the control.With RE and AR combined treatments，growth of soybean seedling were all inhibited.The degree of inhibition of growth was larger when the pH value of AR was lower and the concentration of RE solution was higher.Moreover，the degree of decrease of growth index in RE1 and AR combined treatment was lower than that in AR or RE1 treatment alone,while RE2，RE3and RE4are opposite.

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Last Update: 2014-09-24