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Effect of different plastic sheet covering and pruning times on soil and air temperature monitoring, vegetative growth and bud behaviour of table grape "superior cv." [electronic resource].

By:

Aly, M. A

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Language: English Summary language: Arabic Description: p.429-450Other title:

تأثير التغطية البلاستيكية المختلفة ومواعيد التقليم على درجة حرارة الجو والتربة والنمو الخضرى وسلوك البراعم فى عنب المائدة (سوبريور) [Added title page title]

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Journal of the advances in agricultural researches, 2010 v. 15 (2) [electronic resource].

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In: Journal of the Advances in Agricultural Researches 2010.v.15(2)Summary: The present study was conducted during 2007 and 2008 seasons in a private vineyard of "Superior" grape cultivar at Mohamed Metwaly EL-Shaarawy village, El-Noubarya city Behaira governorate, Egypt. Vines were pruned in different times (December 1st, 15th, and 30'") and covered by white, yellow plastic sheets (air and soil). Their effects on soil and air temperature monitoring, vegetative growth and bud behaviour were studied. Results revealed that, yellow sheet covering trees (YSCT) increased mean of maximum air temperatures by 7°C, followed by (WSCT) which increased by 5.5°C, also (YSCT) increased mean of minimum temperatures by 1.8°C followed by (WSCT) which increased by 1.2°C. Vegetative bud burst advanced 20 days by (P1YSCT) and (P1WSCT) but (P30YSCS) and (P30WSCS) delayed it 11 days as compared by control treatment, moreover, (P30YSCT) and (P30WSCT) gave the least period for vegetative bud burst 14 days but no differences were found under vines which treated with different sheet covering soil with different time pruning as compared by control (18 days). (P1YSCT) and (P1WSCT) advanced flower bud burst by 21 days but (P30YSCS) and (P30WSCS) delayed 10 days as compared with control treatment. (P30YSCT) gave the short period for flower bud burst, which decreased it by 3-4 days as compared with control treatment Generally (P30WSCS) and (P30YSCS) gave a high number and percentage of bud burst but (P1YSCT) gave the lowest values compared with control treatment. The highest bud fertility % was obtained with control treatment, meanwhile treatments (P1YSCT) and (P1WSCT) produced the lowest bud fertility %. Also, the highest leaf area was obtained (P30YSCT) compared with all treatments moreover, the highest shoot length was observed with (P1YSCT) and (P1WSCT) treatments. The different pruning time with while sheet coverings trees gave the highest leaf total chlorophyll content.

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The present study was conducted during 2007 and 2008 seasons in a private vineyard of "Superior" grape cultivar at Mohamed Metwaly EL-Shaarawy village, El-Noubarya city Behaira governorate, Egypt. Vines were pruned in different times (December 1st, 15th, and 30'") and covered by white, yellow plastic sheets (air and soil). Their effects on soil and air temperature monitoring, vegetative growth and bud behaviour were studied. Results revealed that, yellow sheet covering trees (YSCT) increased mean of maximum air temperatures by 7°C, followed by (WSCT) which increased by 5.5°C, also (YSCT) increased mean of minimum temperatures by 1.8°C followed by (WSCT) which increased by 1.2°C. Vegetative bud burst advanced 20 days by (P1YSCT) and (P1WSCT) but (P30YSCS) and (P30WSCS) delayed it 11 days as compared by control treatment, moreover, (P30YSCT) and (P30WSCT) gave the least period for vegetative bud burst 14 days but no differences were found under vines which treated with different sheet covering soil with different time pruning as compared by control (18 days). (P1YSCT) and (P1WSCT) advanced flower bud burst by 21 days but (P30YSCS) and (P30WSCS) delayed 10 days as compared with control treatment. (P30YSCT) gave the short period for flower bud burst, which decreased it by 3-4 days as compared with control treatment Generally (P30WSCS) and (P30YSCS) gave a high number and percentage of bud burst but (P1YSCT) gave the lowest values compared with control treatment. The highest bud fertility % was obtained with control treatment, meanwhile treatments (P1YSCT) and (P1WSCT) produced the lowest bud fertility %. Also, the highest leaf area was obtained (P30YSCT) compared with all treatments moreover, the highest shoot length was observed with (P1YSCT) and (P1WSCT) treatments. The different pruning time with while sheet coverings trees gave the highest leaf total chlorophyll content.

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