نتایج جستجو برای: seed damage

تعداد نتایج: 300724  

2017
R. L. Bruggers P. Sultana R. L. BRUGGERS

Preliminary information on the effectiveness of trimethacarb as a bird repellent on broadcast seed and ripening crops was obtained during 1982 and 1983 from studies in Haiti, India, the Philippines, Bangladesh, Mali, and the United States. R50 and LD50 determinations for nine pest bird species to cereal crops in these countries indicated birds were not as sensitive to trimethacarb as to the avi...

Physiological and biochemical changes during sunflower seed deterioration were studied during incubation for 2, 4, 6 and 8 days at 43 °C and a relative humidity of 100%. Parameters such as germination percentage, germination rate, seedling length, seedling vigor and protein decreased whereas electrical conductivity, fatty acids and lipid hydroperoxides increased during seed deterioration. Incre...

2015
Alejandro Flores-Palacios Angélica María Corona-López María Yolanda Rios Berenice Aguilar-Guadarrama Víctor Hugo Toledo-Hernández Verónica Rodríguez-López Susana Valencia-Díaz Paul Adam

Herbivory activates the synthesis of allelochemicals that can mediate plant-plant interactions. There is an inverse relationship between the activity of xylophages and the abundance of epiphytes on Ipomoea murucoides. Xylophagy may modify the branch chemical constitution, which also affects the liberation of allelochemicals with defense and allelopathic properties. We evaluated the bark chemica...

2016
Leandro Castañeda Leandro A. Castañeda George Graef

In Maize (Zea maize L.), cost of hybrid seed production is directly related to the yield and quality of seed obtained per hectare of female parent. It is also important to consider the effects that a male parent can exert on the development of hybrid seed in the female parent. This effect is known as xenia. The objectives of this study were to evaluate xenia effects on 1) yield as 80K units, 2)...

Journal: :تولید گیاهان زراعی 0
فرشید قادری فر استادیار گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان افشین سلطانی استاد گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان حمیدرضا صادقی پور دانشیار گروه زیست شناسی دانشگاه گلستان

seeds deterioration is a natural phenomenon that occurs in all seeds and leading to gradual decline of seed viability during storage. however, the rate at which seeds age depends upon their physiological status, genetic constitution and storage conditions. in the present study we the examined relationship between accumulation of reducing and non-reducing of sugars, soluble protein, the activity...

Journal: :Food technology and biotechnology 2016
Aynur Serçe Bircan Çeken Toptancı Sevil Emen Tanrıkut Sevcan Altaş Göksel Kızıl Süleyman Kızıl Murat Kızıl

Antioxidant properties of ethanol extract of Silybum marianum (milk thistle) seeds was investigated. We have also investigated the protein damage activated by oxidative Fenton reaction and its prevention by Silybum marianum seed extract. Antioxidant potential of Silybum marianum seed ethanol extract was measured using different in vitro methods, such as lipid peroxidation, 1,1-diphenyl-2-picryl...

2011
F. M. A. ROUF M. A. SARDAR

The crude seed extract of neem, black pepper, mahogani, and garlic bulb with three doses were evaluated against legume pod borer in the country bean field in two seasons kharif 2006 and rabi 2006-2007. The neem seed extract applied @150 and 100 g/l and mahogani seed extract @ 100 g/l of water 7 days intervals on the country bean showed better performance in the reduction of flower and pod damag...

2017
Yang Yu Quan-Feng Li Jin-Ping Zhang Fan Zhang Yan-Fei Zhou Yan-Zhao Feng Yue-Qin Chen Yu-Chan Zhang

Seed setting rate is one of the most important components of rice grain yield. To date, only several genes regulating setting rate have been identified in plant. In this study, we showed that laccase-13 (OsLAC13), a member of laccase family genes which are known for their roles in modulating phenylpropanoid pathway and secondary lignification in cell wall, exerts a regulatory function in rice s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1392

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 ...

A. Kamara P. Christiaan Biemond, P.C. Struik S. Hearne T. Abdoulaye T.J. Stomph

High seed quality is a critical component for realising yield potential. Forsmallholder cowpea farmers in northern Nigeria the informal seed system is amajor supplier of genetically high-quality seed, but the physiological quality offarmers’ produced seed remains unknown. The project “Promoting SustainableAgriculture in Borno State” (PROSAB) trained and supported farmers in seedproduction in Bo...

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