Paper Information

Journal:   IRANIAN JOURNAL OF SEED SCIENCE AND RESEARCH   2016 , Volume 3 , Number 2 #G0078; Page(s) 109 To 124.
 
Paper:  A REVIEW OF DROUGHT STRESS ON MOTHER PLANT EFFECT ON SOYBEAN SEED GERMINATION AND VIGOUR IMPROVEMENT BY SOME BENEFICIAL SOIL MICROORGANISMS TREATMENT ASSESSMENT
 
Author(s):  HAMIDI AIDIN*, DANESHIAN JAHANFAR, ASGHARZADEH AHMAD
 
* AGRICULTURAL RESEARCH EDUCATION EXTENSION ORGANIZATION (AREEO), SEED AND PLANT CERTIFICATION AND REGISTRATION INSTITUTE (SPCRI), KARAJ, IRAN
 
Abstract: 

Environmental stresses occur during seed formation on the parent plant has a considerable effect on seed germination and vigor. Even when all required factors for growth, development and seed formation on the parent plant are provided by growers, parent plants can still be affected by environmental stresses, especially drought stress. Soybean one of the most important oil seed crops which seed germination and vigour affected by drought stress occur on parent plant. In many regions of Iran where soybean seed produced, limited precipitation and irrigation water and severe evapo transpiration conditions often occur during seed formation which causes seed deterioration on parent plant before harvest. Therefore, study on this effect and soybean seed produced under drought stress germination and vigor improvement and rehabilitation have especial importance. Beneficial soil microorganisms like as plant growth promoting rhizobacteria and mycorrhizae fungi have potential ability for seed germination and vigour improvement and seed treatment by those one of the probable methods for seed quality improvement and rehabilitation. Based on, conducted researches by soybean cultivars and genotypes production under drought stress effect as irrigation after 50, 100 and 150 mm evaporation of A class evaporation pan and seeds treated by Bradyrhizobium japonicum, Azotobacter chroococcum, Azosprillium lipoferum, Azosprillium brasilensets, Pseudomonas fluorescens and Glomus mossae mycorrhizae fungus. Review of those researches results revealed that, by drought occur, in all studied soybean cultivars and genotypes, normal seedling percent and seedling length and dry matter decrease and mean germination time increased, but soybean cultivars and genotypes have difference for those traits and Williams, Linford and Zalta Zalha cultivars had more tolerance. Also, among studied beneficial soil microorganisms, seed treatment by Bradyrhizobium japonicum have more potential capability for studied soybeans cultivars and genotypes seeds germination and vigour improvement and rehabilitation.

 
Keyword(s): DROUGHT STRESS, LOW IRRIGATION, SEED REHABILITATION
 
References: 
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