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عملکرد و برخی صقات ژنوتیپ‌های سورگوم علوفه‌ای در تاریخ‌های مختلف کاشت در منطقه شهرکرد | ||
| به زراعی نهال و بذر | ||
| مقاله 2، دوره 32، شماره 2، آذر 1395، صفحه 141-156 اصل مقاله (231.68 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/sppj.2016.113074 | ||
| نویسنده | ||
| سیدجلیل نوربخشیان | ||
| بخش تحقیقات اصلاح و تهیه نهال و بذر، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان چهارمحال و بختیاری، سازمان تحقیقات، آموزش و ترویج کشاورزی، شهرکرد، ایران | ||
| چکیده | ||
| سورگوم از جمله گیاهانی است که توان تولید علوفه بالایی را دارد. از این گیاه می‌توان برای تهیه علوفه خشک و سیلویی استفاده کرد. به منظور ارزیابی توان تولید علوفه ارقام سورگوم علوفه‌ای در تاریخ‌های مختلف کاشت در منطقه شهرکرد، این آزمایش در سال‌های 1392 و 1393 در ایستگاه تحقیقات کشاورزی شهرکرد اجرا شد. برای این منظور چهار ژنوتیپ سورگوم علوفه‌ای (دو رقم پگاه و اسپید فید و دو لاین KFS1 و KFS2) در سه تاریخ کاشت (5 و 20 خرداد و 4 تیرماه) در قالب آزمایش اسپلیت‌پلات و با سه تکرار کاشته شدند. در دوره رشد، از صفات مختلف و عملکرد علوفه ژنوتیپ‌ها در تیمارهای مختلف یادداشت‌برداری به عمل آمد. نتایج بیانگر آن بود که عملکرد علوفه تر و خشک در دو سال تفاوت معنی‌داری نداشتند. بیشترین میانگین تولید علوفه تر و خشک از تاریخ کاشت اول به ترتیب با 86/78 و 89/16 تن در هکتار در مقایسه با تاریخ‌های کاشت دوم و سوم حاصل شد. بیشترین ارتفاع بوته و قطر ساقه نیز به این تاریخ کاشت تعلق داشت. بیشترین میانگین تولید علوفه تر و خشک از لاین KFS1 به ترتیب با 08/73 و 30/16 تن در هکتار به دست آمد که تفاوت معنی‌داری (05/0 ≥ p) با رقم پگاه نداشت. تفاوت معنی‌داری بین درصد پروتئین در تاریخ‌های کاشت مشاهده نشد. بیشترین درصد پروتئین و کمترین مقایر NDF وADF متعلق به رقم اسپید فید بود. به طور کلی نتایج بیانگر آن بود که در هر سه تاریخ کاشت عملکرد علوفه مطلوبی از ژنوتیپ‌های سورگوم قابل برداشت بود، اگرچه در تاریخ کاشت سوم تولید علوفه کمتر بود. | ||
| کلیدواژه‌ها | ||
| سورگوم علوفه‌ای؛ تاریخ کاشت؛ ارقام؛ عملکرد علوفه | ||
| عنوان مقاله [English] | ||
| Yield and some Traits of Forage Sorghum Genotypes in Different Planting Dates in Shahrekord Region | ||
| نویسندگان [English] | ||
| S.J Noorbakhshian | ||
| Seed and Plant Improvement Research Department, Chaharmahal and Bakhtiari Agricultural and Natural Resources Research and Education Center, AREEO, Shahrekord, Iran | ||
| چکیده [English] | ||
| Sorghum is a forage crop that produces high yield of dry matter. Forage sorghum is used for production of silage and dry folder. To evatuate forage yield potential of forage sorghum genotypes in different planting dates, this experiment was carried out in Shahrekord during 2013 and 2014. The experiment was arranged in split plot with three replications in that, main plots were three planting dates (26 may, 10 June and 25 June) and sub plots were four sorghum genotypes (cvs. Pegah and Spead Feed and lines KFS1 and KFS2). Forage yield and different traits were recorded during the growth period. The results indicated that fresh and dry fodder yields in two years were not significantly different. The highest fresh and dry fodder yields were obtained from the first planting date treatment (78.86 and 16.89 tha-1, repectively). The highest plant height and diameter of stem were also belonged to the fisrt planting date. The higest fresh and dry fodder yields were Produced by line KFS1 (73.08 and 16.30 tha-1, respectively) which were not significantly different from those of Pegah cv. (P ≤ 0.05). Significant difference was not observed for protein contents in different planting dates. The highest protein contents and lowest NDF and ADF were obtained from cv. Speed Feed. Generally, the results revealed that in three planting dates, sorghum genotypes could produce reliable forage yield, even that, the third planting dates produced less yield than other two planting dates. | ||
| کلیدواژه‌ها [English] | ||
| forage sorghum, Planting date, Cultivars, forage yield | ||
| مراجع | ||
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