نتایج جستجو برای: cercospora beticola
تعداد نتایج: 738 فیلتر نتایج به سال:
Leaf spot disease caused by Cercospora beticola Sacc. is the most destructive foliar of beet. leaf controlled primarily fungicides because non-chemical alternatives do not provide commercially viable control. One ways reducing chemical application use different essential oils (EOs) or antagonistic plant growth-promoting rhizobacteria (PGPB). This study evaluates several EOs and PGPB belonging t...
Comparative Structural Study of Leaf Spot Disease of Safflower and Sugar Beet by Cercospora beticola
Cercospora leaf spot (CLS) infection can cause severe yield loss in sugar beet. Introduction of Cercospora-resistant varieties in breeding programmes is important for plant protection to reduce both fungicide applications and the risk of the development of fungal resistance. However, in vivo monitoring of the sugar-containing taproots at early stages of foliar symptoms and the characterization ...
به منظور تعیین اهمیت نسبی برخی پدیدههای دفاعی در مراحل قبل و بعد از نفوذ Cercospora beticola در چغندرقند، روند آلودگی شامل مراحل جوانهزنی اسپور، نفوذ عامل بیماری و پیشرفت آن در بافت مزوفیل در برگﻫای جوان و بالغ دو ژنوتیپ مقاوم (FD 0018, HM 1836) و یک ژنوتیپ حساس چغندرقند(236) مورد مطالعه قرار گرفت. نتایج این مطالعه نشان داد که مراحل قبل از نفوذ شامل جوانهزدن اسپور و نفوذ بیمارگر، اهمیتی در م...
Plant diseases influence the optical properties of plants in different ways. Depending on the host pathogen system and disease specific symptoms, different regions of the reflectance spectrum are affected, resulting in specific spectral signatures of diseased plants. The aim of this study was to examine the potential of hyperspectral imaging and non-imaging sensor systems for the detection, dif...
in order to determine possibility of using detached leaf disks for evaluating resistance to cercospora beticola, the causal agent of leaf spot in sugar beet, twelve sugar beet cultivars exhibiting different levels of resistance to cercospora leaf spot were evaluated under field and laboratory conditions. the field experiment was conducted in a complete randomized block design with six replicate...
UNLABELLED The genus Cercospora contains numerous important plant pathogenic fungi from a diverse range of hosts. Most species of Cercospora are known only from their morphological characters in vivo. Although the genus contains more than 5 000 names, very few cultures and associated DNA sequence data are available. In this study, 360 Cercospora isolates, obtained from 161 host species, 49 host...
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