Evaluation the Effects of Irrigation Periods and Chitosan as a Biological Elicitor on Onion (Allium cepa L.) Growth and Yield
| Autor: | Y Rameshjan, A Asgari, F Abdollahi |
|---|---|
| Jazyk: | perština |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | پژوهشهای زراعی ایران, Vol 22, Iss 3, Pp 291-309 (2024) |
| Druh dokumentu: | article |
| ISSN: | 2008-1472 2423-3978 |
| DOI: | 10.22067/jcesc.2024.86155.1293 |
| Popis: | IntroductionOnion (Allium cepa L.) is a species of the Alliacea family. It is of great economic importance in Hormozgan province, Iran, which is ranked the second among the largest producers of onion in Iran in terms of cultivated area (8147 ha) (Agricultural statistics, 2021). Conventional Irrigation have undoubtedly helped in improving both bulb yield and quality of onion, but lately, it was arising many novel trends in Irrigation. Using of chitosan as an antiperspirant compound is one of these trends, as it can improve the water use efficiency (Geries et al., 2020). Chitosan is a member of the polysaccharides which is considered a useful natural polymer and is produced by alkaline N-deacetylation of chitin. Ahmed et al. (2019) reported that positive effect of chitosan nanoparticles on onion, as it significantly promoted seed germination and radical length under salt stress. The best treatment on germination was 0.3% of nano chitosan. Growth variables (plant height, leaf area, fresh and dry weights of the shoot and root) were increased significantly. Nevertheless, data on the utilization of chitosan for onion are meager in Iran. In this way, this study was carried to consider the impact of irrigation periods and chitosan as a biological elicitor on onion cultivar of Taki yellow, uniquely the adjustment in yield and quality properties.Materials and MethodsThis study was carried out at the private farm in Sohrabi village, Shamil district, Hormozgan province, Iran, conducted during 2020-2021 growing season. The experiment was carried out as autumn planting. This experiment was conducted as split-plot arrangement based on a complete randomized block design with 3 replications. Treatments were three irrigation periods and three doses of chitosan as main and sub plot, respectively. In this experiment 3 irrigation periods (such as two days, four days and six days) and 3 doses of chitosan (including zero, 1000 and 2000 ppm) with constant density of 63 plants m-2 yield and yield components (such as mean onion weight, length and diameter, onion shape index and dry matter content) and harvest index of onion were measured.Results and DiscussionThis study was conducted to assess the potential effects of irrigation periods and foliar spraying with chitosan, on the growth, yield quality of onion bulbs. In this experiment, nearly all measured traits were significantly (P |
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