Volume 7, Issue 2 (7-2020)                   NBR 2020, 7(2): 206-218 | Back to browse issues page

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shirinpour E, nasra esfahani M, bakhshi D. The morphological and biochemical effect of phosphate deficiency on different cultivars of common bean (Phaseolus vulgaris). NBR 2020; 7 (2) :206-218
URL: http://nbr.khu.ac.ir/article-1-3247-en.html
Faculty of Basic Sciences, Department of Biology, Lorestan University, Khorramabad, Iran , esfahani_nm@yahoo.com
Abstract:   (2656 Views)
Phosphorus is an essential nutrient for plant growth and productivity. Since agricultural soils in Iran are predominantly calcareous with very low available Pi content, Pi deficiency has been considered to be a major nutritional constraint for crop production, thus, the application of Pi-fertilizers is essential for satisfactory crop production. The application of Pi-fertilizers contaminates soil and water resources. Therefore, the application of Pi-fertilizers should be reduced through some efficient strategies. The identification of genotypes more tolerant to Pi deficiency is an important low-cost strategy to promote sustainable agriculture in low fertility soils. In this study, the morphological and biochemical responses of five cultivars of common bean (Talash, Mahali Khomein, Sadri, Kosha and Line Ks21191) were evaluated under Pi sufficiency and Pi deficiency. Under Pi-deficient conditions, fresh and dry weights and shoot length were lower while root length was higher in comparison with Pi-sufficient conditions. Under Pi-deficient conditions, the highest and lowest levels of total P were observed in Mahali Khomein and Talash, respectively. The activities of superoxide dismutase and peroxidase in root and catalase in leave showed remarkable increase under Pi-deficient conditions. In conclusion, Mahali Khomein and Talash were the most and the least Pi-deficient tolerant cultivars, respectively.
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Type of Study: Original Article | Subject: Plant Biology
Received: 2019/02/17 | Revised: 2020/07/28 | Accepted: 2019/07/7 | Published: 2020/06/30 | ePublished: 2020/06/30

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