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پاسخهای تغذیهای و فیزیولوژیکی نارنگی انشو میاگاوا با پایه نارنج به خاکهای آهکی در استان مازندران | ||
| پژوهش های خاک | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 22 آذر 1404 | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsr.2025.370719.788 | ||
| نویسندگان | ||
| علی اسدی کنگرشاهی* 1؛ نگین اخلاقی امیری2 | ||
| 1عضو هیات علمی مرکز تحقیقات مازندران | ||
| 2عضو هیات علمی مرکز تحقیقات | ||
| چکیده | ||
| پژوهش حاضر، با هدف ارزیابی پاسخ پایه نارنج (C. aurantium L.) به برخی خاکهای آهکی شرق ماندران اجرا شد. بدین منظور، آزمایشی به مدت دو سال درقالب طرح بلوکهای کامل تصادفی در هفت خاک با بافت متفاوت (لوم شنی تا رسی) و دامنه کربنات کلسیم از2 تا 45 درصد انجام شد. پاسخهای گیاهی شامل وزن خشک، شاخص درجه زردی، کلروفیل، شاخص فلورسنس کلروفیل، غلظت عناصر غذایی در برگ و ریشه بود. نتایج نشان داد بیشترین و کمترین میانگین وزن خشک اندام هوایی به ترتیب مربوط به خاک با بافت رسی و خاک لوم شنی بود. نهالها در خاکهای مختلف، علائم زردبرگی نداشتند. میانگین غلظت آهن، منگنز و روی در ریشهها به ترتیب 48/12، 14/6 و 19/3 برابر میانگین غلظت آنها در برگها بود. به طور کلی از بین عناصر پرمصرف، منیزیم و گوگرد به ترتیب بیشترین وکمترین راندمان انتقال از ریشه به اندام هوایی را داشتند و از عناصر کم مصرف، آهن فعال و آهن کل به ترتیب بیشترین و کمترین راندمان انتقال را نشان دادند. شاخص زرد برگی نهالهای انشو با پایه نارنج در خاکهای با آهک کم و زیاد، تفاوت معنیداری نداشتند. بیشترین و کمترین وزن خشک به ترتیب از خاکهای با بافت سنگین (رسی) و سبک (لوم شنی) حاصل شد. بنابراین، براساس نتایج این پژوهش، نارنج متحمل به آهک خاک است و آهک برای آن، یک عامل محدود کننده نیست، در مقابل، بافت خاک (بهویژه بافتهای سبک مانند لوم شنی) یکی از عوامل محدودکننده برای این پایه است. | ||
| کلیدواژهها | ||
| پایه؛ زرد برگی (کلروز)؛ عناصر غذایی؛ کربنات کلسیم؛ مرکبات | ||
| عنوان مقاله [English] | ||
| Physiological and Nutritional Responses of Citrus unshiu cv. Miyagawa on Sour Orange (Citrus aurantium L.) in Mazandran Calcareous Soils of Mazandaran province | ||
| نویسندگان [English] | ||
| ali asadi kangarshahi1؛ Negin Akhlaghi Amiri2 | ||
| 1Associate Professor of Soil and Water Research Department, Mazandaran Agricultural and Natural Resources Research and Education Center, AREEO, Sari, | ||
| 2Agronomy and Horticultural Science Department, Mazandaran | ||
| چکیده [English] | ||
| Objectives: Some of the physical and chemical characteristics of the soils of Mazandaran province, especially clay from north to south and lime (calcium carbonate) content from west to east, have the greatest variation (clay, 3-40 % and lime, 0- 45%). Based on research and field results, Swingle citromelo (Grapefruit & Ttrifoliate orange) is recommended for low-lime soils, C-35 (Ruby Blood orange & P. trifoliate), Carrizo citrange (Citrus sinensis Osb. × Poncirus trifoliata L. Raf.), Troyer citrange (C. sinensis & P. trifoliate L.) for low to medium-lime soils and light texture). Gou Tou (Citrus aurantium L. var. Gou Tou) has a relative tolerance to lime and shows chlorosis symptoms in high and very high lime soils, Smooth Flat Seville (Citrus spp. hybrid of uncertain origin) is tolerant to soil lime but has early deterioration in some soils. Therefore, for medium, high and very high lime soils of the eastern Mazandaran region, Sour Orange (C. aurantium L.) rootstock is the only desirable and available option for orchards, so knowing its response to the region's soils is necessary for field guidance and management. It is necessary to establish and re-establish citrus orchards in the soils of the region. For this purpose, this study was conducted for the first time in the country to evaluate the nutritional and physiological responses of Citrus unshiu cv. Miyagawa on Sour Orange rootstock in calcareous soils of the eastern Mazandaran region. Methodology: According to the soil map and soil reports, seven soil samples were selected with different textures (sandy loam to clay) and calcium carbonate (2 to 45%). 30 kg of soil from the selected soil samples were poured into plastic golden. Then, Citrus unshiu cv. Miyagawa seedlings on Sour Orange rootstock were planted in each soil. The experiment was conducted for two years in a potted form in a randomized complete block design with seven soils in four replications with 28 pots. Plant responses included dry weight, chlorosis rate, fluorescence index (Fv/Fm), chlorophyll and nutrient concentration in leaves and roots.. Finally, all the obtained data were analyzed using SPSS software and the means of the studied parameters were compared using Duncan's test. Results:The results of this study showed that the physical and chemical properties of the soil have a great influence on the nutritional and physiological responses of Citrus unshiu cv. Miyagawa on Sour Orange rootstock. The results showed that the highest and lowest average dry weight of aerial parts and roots were obtained from soils with clay texture and total lime of 30% and sandy loam soils with lime of 40%, respectively. There was a significant difference in the chlorosis rate of the leaves of seedlings on this rootstock in different soils. The average concentration of Fe, Mn and Zn in the roots was 12.48, 6.14 and 3.19 times the average concentration in the leaves, respectively. In general, among the essential elements, Mg and S had the highest and lowest Translocation Factor from the root to the leaves, respectively, and active and total Fe showed the highest and lowest Translocation Factor, respectively. The P, S, Fe, Mn, Zn and Cu had the Translocation Factor were less than one, which indicates that these elements are less mobile and accumulate in the roots. The leaf chlorosis index of Citrus unshiu cv. Miyagawa on Sour Orange rootstock in soils with low and high lime did not differ significantly. Also, increasing active lime did not have a significant effect on the concentration of active Fe and the chlorosis rate of seedlings on this rootstock. Conclusion: According to the results of this study, orange rootstock is tolerant to soil lime and lime is not a limiting factor for it. Therefore, it is recommended for calcareous soils of the eastern Mandran region, especially in soils with heavy texture and high lime. However, its use in light-textured soils and also soils susceptible to manganese deficiency (where there is a possibility of manganese deficiency symptoms) is not recommended, because the results of this study showed that in these soils its vegetative growth is severely reduced and soil texture (especially light textures such as sandy loam) is one of the limiting factors for this rootstock. | ||
| کلیدواژهها [English] | ||
| Rootstock, leaf yellowing (chlorosis), nutrients, calcium carbonate, citrus | ||
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