Volume 10, Issue 45 (vol. 10, no. 45 2021)                   2021, 10(45): 285-302 | Back to browse issues page

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bagheri S, Hassandokht M, Mirsoleimani A. Effect of palm leaf biochar application on some physiological and biochemical characteristics of melon plants (Cucumis melo cv. Samsouri) under drought stress. Plant Process and Function 2021; 10 (45) :285-302
URL: http://jispp.iut.ac.ir/article-1-1517-en.html
1- Department of Horticulture, Science and Research Branch, Islamic Azad University, Tehran, Iran
2- Department of Horticultural Sciences, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran , mrhassan@ut.ac.ir
3- Department of Plant Production, Faculty of Agriculture and Natural Resources of Darab,Shiraz University, Shiraz, Iran
Abstract:   (884 Views)
In order to investigate the effect of palm leaf biochar on some characteristics of Cucumis melo L. under drought stress, a split plot experiment was conducted in a completely randomized block design with three replications for two consecutive years. The main plot included irrigation level (60, 85, and 100% water requirement) and subplot was biochar in four levels (0, 0.18, 0.24, and 0.36 kg/m2). Results showed that treatment of 0.24 kg/m2 biochar and 100% water requirement increased the characteristics of shoot fresh weight up to 77%, shoot dry weight up to 32%, root fresh weight up to 100%, root dry weight up to 84%, root length up to 54%, and average fruit weight 84%, water use efficiency up to 88%, compared to the treatment without biochar and 60% water requirement.  The biocharfree treatment with 60% water requirement accounted for the highest amount of proline due to high stress, and the proline content reduced with increasing biochar and decreasing stress in treatments. The highest level of leaf N, Mn and K, shoot length, leaf area, leaf number, fruit diameter and fruit flesh thickness in the treatment of 0.36 kg/m2 biochar and 100% water requirement were higher up to 58%, 48%, 65%, 18%, 50%, 95%, 43% and 55%, compared to the treatment without biochar and 60% water requirement respectively and had no significant difference with the treatment of 0.24 kg/m2 biochar and 85% water requirement. The highest rates of Fe, Zn and Cu were related to 0.36 kg/m2 biochar and 60% water requirement as 60, 44 and 66% respectively compared to the treatment without biochar and 100% water requirement. Generally, the treatments of 0.24 and 0.36 kg/m2 of biochar increased most of the characteristics, however no significant difference was observed between these treatments. Moreover, in 85% water requirement the drought stress conditions could compensate with the application of biochar. Thus, using 0.24 kg/m2 of biochar and 85% of water requirement, recommended for the best result.
Article number: 18
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Type of Study: Research | Subject: Droughts Stress
Received: 2021/02/21 | Accepted: 2021/07/6 | Published: 2021/12/20

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