نتایج جستجو برای: آتشک fire blight
تعداد نتایج: 49850 فیلتر نتایج به سال:
Abstract Bacteriophages offer unique benefits for the specific control of Erwinia amylovora , causative agent fire blight in pome fruit. Unfortunately, majority described phages were tested efficacy vitro only. Data from infection assays using pear slices or detached blossoms is rare and field trials are barely reported. It remains to be studied if bacteriophages could open field. This review s...
Apple is the most significant fruit in Kazakhstan, as well many other countries of world. According to Statistics Agency 2020, apple cultivation area Kazakhstan about 36 thousand hectares with a gross har-vest 259.1 tons. The fire blight crops, particular trees, one harmful infectious diseases, rapidly spreading and cre-ating constant threat plantations Kazakhstan. In order avoid further spread...
Foliar tissue samples of cultivated daylilies (Hemerocallis hybrids) showing the symptoms of a newly emergent foliar disease known as 'spring sickness' were investigated for associated fungi. The cause(s) of this disease remain obscure. We isolated repeatedly a fungal species which proved to be member of the genus Botrytis, based on immunological tests. DNA sequence analysis of these isolates, ...
استفاده از مواد محرک جهت القا ژن های دفاعی گیاه یکی از روش های مبارزه با بیماری ها است. این تحقیق با هدف بررسی اثر ماده محرک bth بر بیان ژن pr2 و شدت بیماری آتشک در گیاه به و در شرایط باغی انجام شد. درختچه های دو ساله به ارقام اصفهان و ترش در اردیبهشت ماه با محلول bth با غلظت های 300 و400 میلی گرم در لیتر دوبار به فاصله چهار روز محلول پاشی شدند، سپس با سوسپانسیون سلولی باکتری عامل بیماری آتشک آ...
Describing long-term dynamics in oak stands is hindered by a lack of archival data. In this study, archival data from the 1934 inventory of a 673ha area within the Sylamore Experimental Forest were compared to a recent 2002 inventory to quantify changes in forest structure and species composition of this upland oak forest in the Ozark Mountains of Arkansas. When established in 1934, the Sylamor...
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