ارزیابی سازگاری و پایداری لاین‏ های پیشرفته بادمجان‏ های دلمه ‏ای کشور

در این پژوهش چهار لاین پیشرفته بادمجان دلمه ای کشور شامل لاین‏‏ های d1، d7، d13 و bj30 به همراه سه شاهد رقم بلک بیوتی، توده قصری دزفول و توده دلمه‏‏ ای برازجان در آزمایشات سازگاری و پایداری در قالب طرح بلوک ‏‏های کامل تصادفی در سه تکرار و به ­مدت دو سال در پنج منطقه کشور شامل کرج، قراخیل، جیرفت، ارومیه و دزفول، مورد ارزیابی قرار گرفتند. بالاترین عملکرد در بین مناطق مورد مطالعه مربوط به منطقه کرج با میانگین عملکرد 58/39 تن در هکتار بود. از طرفی بیشترین عملکرد را لاین ‏های bj30، d1 و d7 به ترتیب با میانگین عملکرد 34/08، 33/72 و 42 /31تن در هکتار دارا بودند. به طور کلی بیشترین عملکرد مربوط به لاین bj30‏ و توده محلی دلمه ‏ای برازجان (تیمار شاهد) در منطقه کرج و کمترین عملکرد مربوط به لاین d7، رقم بلک بیوتی، لاین d13 و توده محلی برازجان، همگی در منطقه قراخیل بود. براساس نتایج تجزیه پایداری به روش ammi لاین هایd1  و d7 به ­عنوان لاین ‏‏ های با پایداری عمومی و میانگین عملکرد مناسب، قابل توصیه برای کشت در تمامی مناطق کشور می باشند، زیرا دارای اثر متقابل ژنوتیپ در محیط کمتر و پایداری عمومی بیشتری بودند. همچنین، لاین پیشرفته bj30 سازگاری خصوصی با منطقه کرج داشته و قابل توصیه برای این منطقه است.

evaluation of adaptability and stability of the iranian round eggplants advanced lines

cultivation of summer crops is the high cost process, so the produced crops should have suitable quantitative and qualitative characteristics to compensate production costs. selection the plants with the best morpho-physiological characteristics and productivity rate can lead to enhance economic efficiency and resistance rate to biotic and abiotic stresses. with population growth, demand for eggplant as an excellent source of iron, calcium, potassium, phosphorus, and vitamins a and b has increased. in addition to use as food, eggplant also has medicinal characteristics leading to its consumption for medicinal purposes. eggplant is considered as widely cultivated crop with edible fruits in tropical, subtropical and warm regions, especially in southern europe and south america. the total cultivated area of eggplant is about 1.65 million hectares, its production rate is about 48.5 million tons, and its average yield is about 29.3 tons per hectare, worldwide. china, india and iran are respectively the top producers of this crop with 28.8, 12.2 and 1.3 million tons production rates. khuzestan, hormozgan, tehran, fars, sistan and baluchistan, razavi khorasan, bushehr, jiroft and kahnuj are some regions in iran with the highest cultivation and production rate of eggplant.2.materials and methods: the adaptability and stability of four advanced iranian eggplant lines including d1, d7, d13 and bj30, along with three controls including “black beauty” cultivar, qasri dezful landrace and round brazjan landrace were studied based on randomized complete blocks design (rcbd) with three replications at five different locations during two years. seedlings were transplanted at 4-6 leaf stage when their height reached to more than 10 cm. the field was irrigated before transplantation. the distance between rows was 60 cm and seedlings were transplanted at a distance of 75 cm in each row. the total yield was evaluated as a cumulative parameter for each plot from the beginning of fruiting to the end of the harvest period. analysis of variance was performed using sas software. mean comparisons were conducted based on duncan method at 1 % probability level. stability analysis was performed by ammi method.3.results and discussion: the mean comparisons results demonstrated that the highest total yield was recorded in bj30 line (34.08 ton ha-1), followed by d1 (33.72 ton ha-1) and d7 (31.42 ton ha-1) lines. total yield in karaj region (58.39 ton ha-1) was higher than other studied regions (jiroft with 34.34, dezful with 25.52, orumieh with 22.74 and qarakhil with 14.49 ton ha-1, respectively).