نتایج جستجو برای: pythium ultimum
تعداد نتایج: 1595 فیلتر نتایج به سال:
The 5S ribosomal RNA (rRNA) genes in eukaryotes may occur either interspersed with the other rRNA genes in the ribosomal DNA (rDNA) repeat, or in separate tandem arrays, or dispersed throughout the genome. In Pythium species and in several related Oomycetes, polymerase chain reaction (PCR) amplification of the nontranscribed spacer (NTS) region with one primer specific for the 5S gene revealed,...
Plant biostimulants are substances or microorganisms aimed at promoting plant growth by increasing the mineral nutrition efficiency, tolerance to environmental stress, and crop quality traits. This new category of inputs has been capturing interest both researchers agriculture takeholders in light promising effects they could have on productivity sustainability. study investigated a variety for...
خسارات ناشی از عوامل بیماریزا یکی از موانع اصلی کشت و تولید گلرنگ به شمار می رود. مطالعه اخیر به منظور بررسی نحوه واکنش ژنوتیپ های گلرنگ در برابر اثرات حاصل از pythium ultimum طی سال های 1388 و 1389 در شرایط مزرعه انجام شد. این تحقیق شامل دو بخش ارزیابی والدین و انتخاب (سال 1388) و ارزیابی نتاج انتخاب شده (سال 1389) بود. آزمایش اول در سال 1388 به صورت طرح پایه بلوک کامل تصادفی در 8 تکرار با 6 ژ...
Strains of Pseudomonas that produce antimicrobial metabolites and control soilborne plant diseases have often been isolated from soils defined as disease-suppressive, i.e., soils, in which specific plant pathogens are present, but plants show no or reduced disease symptoms. Moreover, it is assumed that pseudomonads producing antimicrobial compounds such as 2,4-diacetylphloroglucinol (DAPG) or p...
Abstract Ethanedinitrile is a chemical soil fumigant with promising efficacy against several key pests including weeds, nematodes, and soil-borne pathogens. The of 12 concentrations ethanedinitrile, ranging from 8.7 to 1,751 mg kg − 1 soil, control seeds tubers five weed species ( Cyperus esculentus, C. rotundus, Malva parviflora, Portulaca oleracea , Stellaria media ), two nematode Globodera r...
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