نتایج جستجو برای: juniperus horizontali moench

تعداد نتایج: 4807  

Journal: :International journal of biometeorology 2015
Landon D Bunderson Estelle Levetin

Juniperus pollen is highly allergenic and is produced in large quantities across Texas, Oklahoma, and New Mexico. The pollen negatively affects human populations adjacent to the trees, and since it can be transported hundreds of kilometers by the wind, it also affects people who are far from the source. Predicting and tracking long-distance transport of pollen is difficult and complex. One para...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1392

هدف اصلی مطالعات تنوع ژنتیکی، شناخت ویژگی های ذاتی و قابل توارث گیاهان و تلاش برای حفاظت از این ویژگی-های ذاتی است. ارس (juniperus polycarpos k.koch) از تیره سرو (cupressaceae)، یکی از مهم ترین گیاهان پرستار در کوهستان های صخره ای خشک و نیمه خشک است. شمال شرق به دلیل داشتن چندین زیستگاه برای این گیاه، یکی از بزرگترین ذخایر ژنتیکی ارس در کشور ایران است. تخریب بیش از حد این گیاه در سال های اخیر، ...

Journal: :Österreichische Botanische Zeitschrift 1890

Journal: :iranian journal of pharmaceutical research 0
sayyed ahmad emami department of pharmacognosy, school of pharmacy, mashhad university of medical sciences, mashhad, 91775-1365, iran. bibi fatemeh abedindo department of pharmacognosy, school of pharmacy, mashhad university of medical sciences, mashhad, 91775-1365, iran. mohammad hassanzadeh-khayyat pharmaceutical sciences research center, department of medicinal chemistry, school of pharmacy, mashhad university of medical sciences, mashhad, 91775-1365, iran.

the essential oils of branchlets and fruits of juniperus excelsa subsp. excelsa and juniperus excelsa subsp. polycarpos were examined for their antioxidant activity. the compositions of the essential oils were studied by gc and gc-ms. to evaluation the antioxidants activity of the volatile oils, pure components and positive controls at different concentrations, thin-layer chromatography (tlc) s...

2014
Charles L. Cantrell Valtcho D. Zheljazkov Camila R. Carvalho Tess Astatkie Ekaterina A. Jeliazkova Luiz H. Rosa

Juniperus horizontalis Moench (Family Cupressaceae), commonly called creeping juniper, is a widely distributed species in the United States and much of Canada. It is potentially a source for two important chemical products, the anticancer drug synthetic precursor, podophyllotoxin and essential oils. The objectives of this study were to ascertain the likelihood of utilizing J. horizontalis needl...

Journal: :Botanical Gazette 1908

Journal: :Journal of nematology 1972
J W Riffle

Pinus edulis and Juniperus monosperma seedlings were inoculated separately with each of seven nematode species, and grown for 9 months at 20 C soil temperature. Hoplolaimus galeatus, Rotylenchus pumilis, Tylenchus exiguus, and Xiphinema americanum parasitized P. edulis seedlings, but did not significantly reduce seedling growth. Pinus edulis was not a host for Tylenchorhynchus cylindricus, Aphe...

Journal: :Botanical Gazette 1907

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