نتایج جستجو برای: phytophthora cactorum
تعداد نتایج: 8577 فیلتر نتایج به سال:
در سالهای 1384 و 1385 میزان مقاومت نسبی یازده نوع پایه رویشی سیب به بیماری پوسیدگی طوقه ناشی از قارچ Phytophthora cactorum به صورت فاکتوریل با دو فاکتور نوع پایههای سیب و سال، در قالب طرح کاملاً تصادفی با سه تکرار و چهار گیاه در هر واحد آزمایشی بررسی شد. کلیه پایهها به جز مربائی به طریق رویشی تکثیر شدند. پس از تهیه زادمایه قارچ، ارزیابی میزان مقاومت پایههای سیب به پوسیدگی طوقه در گلدانهائ...
The trend to search novel microbial natural biocides has recently been increasing in order to avoid the environmental pollution from use of synthetic pesticides. Among these novel natural biocides are the bioactive secondary metabolites of Burkholderia gladioli pv. agaricicola (Bga). The aim of this study is to determine antifungal activity of Bga strains against some phytopathogenic fungi. The...
Nanoparticles of TiO(2) or SnO(2) on screen-printed carbon (SP) electrodes have been developed for evaluating their potential application in the electrochemical sensing of volatiles in fruits and plants. These metal oxide nanoparticle-modified electrodes possess high sensitivity and low detection limit for the detection of p-ethylguaiacol, a fingerprint compound present in the volatile signatur...
Understanding the genetic architecture of traits in breeding programs can be critical for making genetic progress. Important factors include the number of loci controlling a trait, allele frequencies at those loci, and allele effects in breeding germplasm. To this end, multiparental populations offer many advantages for quantitative trait locus (QTL) analyses compared to biparental populations....
Strawberry ( Fragaria × ananassa ) seedlings from 50 bi-parental crosses among 20 elite genotypes were evaluated for resistance to Phytophthora cactorum after artificial inoculation. Plots of seedlings or runner plants were rated using a disease severity score and the percentage of stunted plants per plot. The distribution of cross means for percentages of plants with stunting was highly skewed...
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