نتایج جستجو برای: oryza spp
تعداد نتایج: 61456 فیلتر نتایج به سال:
در این تحقیق، کارآیی سه گونه ی spp. trichoderma و دو استرین باکتری bacillus spp. در کنترل بیولوژیک fusarium oxysporum f. sp. melonis عامل پژمردگی فوزاریومی خربزه در شرایط آزمایشگاه و گلخانه مورد ارزیابی قرارگرفت. آزمون ها در قالب طرح کاملاً تصادفی در 4 تکرار انجام شد و برای مقایسه ی میانگین ها از آزمون lsd در سطح احتمال یک درصد استفاده شد. نتایج بررسی های آزمایشگاهی روی کارآیی عوامل قارچی کنترل...
We assessed the interplay of artificial and natural selection in rice adaptation in low-input farming systems in West Africa. Using 20 morphological traits and 176 molecular markers, 182 farmer varieties of rice (Oryza spp.) from 6 West African countries were characterized. Principal component analysis showed that the four botanical groups (Oryza sativa ssp. indica, O. sativa ssp. japonica, O. ...
community-acquired pneumonia and brucellosis are of the main agents causing mortality in the world. the most important limitations for the identification of these agents include their high resistance against environmental conditions, impossibility of rapid and on time diagnosis, low level of infective dose, and lack of existence of vaccine against many types of them. hence, on time action and d...
Weeds are the main phytosanitary problem in rice crop. Over-reliance on herbicides and lack of crop operations range system have produced intense selection for evolution resistant weed populations. This study focused farmers’ perceptions attitudes towards weeds agricultural practices management. The methodology a questionnaire was used, carried out person with producers producing regions Portug...
Rice (Oryza sativa L.), as a cereal grain, is the most widely consumed staple food for large part of world’s human population, especially in Asia and Africa. production often subjected to several biotic abiotic stresses. sheath blight one destructive diseases causing economic losses rice yields affecting quality worldwide. Twenty soil samples were collected from rhizosphere crop different regio...
The wild rice Oryza coarctata (Roxb.) is an herbaceous halophytic plant belongs to the grass family poaceae prevalent coastal regions of Southern Asia. O. only hydro-halophytic germplasm under genus Oryza and shows high salinity.
بهمنظور مطالعه اثر تغذیه برگی کودهای نیتروژنه، فسفره و پتاسیمی بهعنوان مکمل غذایی بر عملکرد و کارایی جذب و انتقال عناصر ماکرو در برنج هیبرید رقم بهار، آزمایشی در قالب طرح بلوکهای کامل تصادفی در سه تکرار با 13 تیمار در موسسه تحقیقات برنج کشور (گیلان) در سال 1387به اجرا درآمد. کود مورد نیاز جهت مصرف در خاک با توجه به نتایج و وضعیت خاک در اراضی موسسه به مقدارk2o= 100 kg/ha ، p2o5= 45 kg/ha ،n= ...
Rice (Oryza sativa L.) is the most important food crop in the world and a model system for plant biology. With the completion of a finished genome sequence we must now functionally characterize the rice genome by a variety of methods, including comparative genomic analysis between cereal species and within the genus Oryza. Oryza contains two cultivated and 22 wild species that represent 10 dist...
Abiotic stresses adversely affect cellular homeostasis, impairing overall growth and development of plants. These initial stress signals activate downstream signalling processes, which, subsequently, activate stress-responsive mechanisms to re-establish homeostasis. Dehydrins (DHNs) play an important role in combating dehydration stress. Rice (Oryza sativa L.), which is a paddy crop, is suscept...
Batok glutinous rice especially local varieties, is one of the agricultural commodities that can be used as a source food. Besides having good taste, batok also not easily attacked by pests and seeds obtained. However, obstacles in utilization for varieties are long harvest time low production. Therefore, seed priming carried out utilizing biofertilizer derived from rhizosphere fungus, Trichode...
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