Characterization of Resistance to Squash Silverleaf Disorder in Summer Squash
نویسندگان
چکیده
منابع مشابه
Characterization of Resistance to Squash Silverleaf Disorder in Summer Squash
Feeding nymphs of the silverleaf whitefly, Bemisia argentifolii (formerly known as Bemisia tabaci Gennadius, B strain), cause a physiological disorder known as squash silverleaf (SSL) in summer squash (Cucurbita pepo L.). This disorder is characterized by a progressive silvering on the upper leaf surface caused by the development of large air spaces between the palisade mesophyll cells and the ...
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Squash genes (SLW1 and SLW3) induced systemically after silverleaf whitefly feeding were identified. Differences in the local and systemic expression of SLW1 and SLW3 after feeding by the closely related silverleaf and sweetpotato whiteflies were observed. Temporal and spatial studies showed that SLW1 and SLW3 were induced when second, third, and fourth nymphal instars were feeding. Although on...
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Squash leaf curl virus (SqLCV) is a bipartite begomovirus affecting squash plants. It is transmitted by whitefly Bemisia tabaci biotype B causing severe leaf curling, vein banding, and molting ending by stunting. In this study full-length genomic clone of SqLCV Egyptian isolated and posttranscriptional gene silencing (PTGS) has been induced to develop virus resistance. The Noubaria SqLCV has mo...
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Greenhouse and field experiments were conducted to determine the influence of transplant age on growth and yield of ‘Dixie’ and ‘Senator’ summer squash (Cucurbita pepo L.). Dry weight and leaf area measurements indicated that 28to 35-day-old greenhouse-grown transplants grew more slowly after transplanting than plants that were 10,14, or 21 days old. Older transplants flowered earlier; however,...
متن کاملCombining ability of summer-squash lines with different degrees of parthenocarpy and PRSV-W resistance
The aim was to assess heterosis in a set of 16 summer-squash hybrids, and evaluate the combining capacity of the respective parental lines, which differed as to the degree of parthenocarpy and resistance to PRSV-W (Papaya Ringspot Virus-Watermelon strain). The hybrids were obtained using a partial diallel cross design (4 × 4). The lines of parental group I were 1 = ABX-037G-77-03-05-01-01-bulk,...
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ژورنال
عنوان ژورنال: HortScience
سال: 2009
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci.44.5.1213