نتایج جستجو برای: convolvulus oxyphyllus and pteropyrum noeanum
تعداد نتایج: 16827380 فیلتر نتایج به سال:
Weed infestations and associated yield losses require effective weed control measures in soybean and sugar beet. Besides chemical weed control, mechanical weeding plays an important role in integrated weed management systems. Field experiments were conducted at three locations for soybean in 2013 and 2014 and at four locations for sugar beet in 2014 to investigate if automatic steering technolo...
در این تحقیق برای اولین بار عصاره کلروفرمی قسمتهای هوایی گیاه Eryngium noeanum Boiss. متعلق به خانواده چتریان بررسی گردید. اندامهای هوایی این گونه گیاهی در فصل گلدهی از فارس- استهبان جمعآوری شد. خالصسازی عصاره خام بهوسیله کروماتوگرافی ستونی بر روی سیلیکاژل با گرادیان حلال n-هگزان -اتیلاستات انجام شد. در پایان کروماتوگرافی ستون با متانول شسته شد. اجزا مشابه مطابق آنالیز TLC به هم اضافه شدن...
antioxidants are vital substances which possess the ability to protect the body from damage caused by free radical-induced oxidative stress. a variety of free radical scavenging antioxidants exist within the body which many of them are derived from dietary sources like fruits, vegetables and teas. this article describes a test method for screening the antioxidant activity of 60 iranian plants o...
Goal. Determine the species composition of weeds, their dominant role and establish type level weediness winter wheat crops by cultivation on black fallow, after peas for grain as forecrops in Eastern Forest-Steppe Ukraine.
 Methods. The research was carried out means route surveys field experiments located a stationary nine-field steam-grain-row crop rotation monoculture wheat.
 Resu...
This study demonstrates the ability of Convolvulus microphyllus extract to prevent low-carbon steel corrosion (LCS) by varying inhibitor concentration. The effectiveness reaction was examined using gravimetric techniques and electrochemical procedures in a corrosive 0.5 M sulfuric acid medium. results polarization show mixed adsorption nature on LCS surface. C. microphyllus-derived film (extrac...
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