نتایج جستجو برای: seed deterioration
تعداد نتایج: 108962 فیلتر نتایج به سال:
sesame is one of the most important oil crops in iran. high oil seed content makes it difficult to store for a long period of time. this study was conducted in 2012 to evaluate possible physiological and biochemical changes in seed under different storage conditions. various seed moisture content (5, 9, 13, and 17%) were evaluated under five temperatures (5, 15, 25, 35, 45) for six month. germi...
Seeds are important to agriculture and conservation of plant biodiversity. In agriculture, seed germination performance is an important determinant of crop yield, in particular under adverse climatic conditions. Deterioration in seed quality is associated with the accumulation of cellular damage to macromolecules including lipids, protein, and DNA. Mechanisms that mitigate the deleterious cellu...
this study aimed at determining the effect of domestic synthesized polymer on germination and growth of sugar beet seedling in laboratory, greenhouse, and field. the study was conducted based on randomized complete block design with four replications at sugar beet seed institute, karaj, iran in 2010-2012. the treatments were uncoated (control) and coated seed with foreign polymer, and also seve...
adverse environmental storage conditions including high temperature and relative humidity could affect seed quality. the objective of this investigation was to quantify relationship between temperatures and seed moisture on seed deterioration and determination viability constants in sorghum. four storage temperatures (5, 15, 25 and 35oc) and three moister content levels (6, 10 and 14%) were use...
the term ‘deteriorated texture’ gives all experts as well as ordinary people almost the sameimpression. despite common points in images, the differences put iran cities in different categories based on deteriorated textures. this classification not only has negative effect on the audience from mental point of view but causes various problems for the experts in determining interference method. f...
روانگرایی در ماسه های ریزدانه اشباع در هنگام زلزله، موجب خرابی سازه های زیادی در نقاط مختلف دنیا بوده است. از عوامل موثر در این پدیده می توان به تراکم خاک، دانه بندی خاک، عمق لایه مورد نظر و تنش های موثر همه جانبه، شدت و مدت زمان زمین لرزه و درصد عبوری از الک شماره 200 (مقدار ریزدانه و جنس آن) اشاره نمود. عالباً در روشهای رایج ارزیابی وقوع روانگرایی از خصوصیات درجای خاک، همانند نتایج آزمایش های ...
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HIGHLIGHTS The harvested T. caraiba seeds maintain high viability for 360 days of storage. Seeds at 42 DAA have higher quality. SOD and CAT activity is not related to the deterioration process under POX increases in response seed storage period.
To investigate the effect of quinine seed priming on morpho-physiological and biochemical traits of seedlings, a factorial experiment was conducted in a completely randomized design with four replications at the seed processing laboratory of the Shahed University of Tehran. Experimental factors included two levels of seed age (one-year old and four-year old) and four priming treatments (control...
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