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Response of flame seedless and superior grapevines grown on sandy calcareous soil to some phosphate dissolving bacteria treatments [electronic resource].

By:

Ibrahim, Hamdy I.M

Language: English Summary language: Arabic Description: p.285-300Other title:

إستجابة كرمات العنب الفلايم سيدلس والسوبريور النامية في التربة الرملية الجيرية لبعض معاملات البكتريا المذيبة للفوسفور.‪ [Added title page title]

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Egyptian journal of agricultural research, 2009 v. 87 (1), Special issue [electronic resource]:

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In: Egyptian Journal of Agricultural Research 2009.v.87(1)SPSummary: High pH level in Egyptian sandy calcareous soils (soils of Sedmant Al-Gabl - Beni Suef Governorate) led to fix the phosphorus under insoluble form such as tri-calcium phosphate. In this study, two grapevine cvs Flame seedless and Superior were biofertilized with phosphorien as a source of phosphate dissolving bacteria "Badllus megaterium" at 20g once, twice or thrice addition for to three consecutive seasons namely 2005/2006, 2006/2007, and 2007/2008. The study showed that, regardless the cultivars treating the vines with phosphorlen significantly increased the leaf area and shoot length especially in the third season. Phosphorlen had a significant effect on leaf mineral contents especially NPK as compared with untreated vines. Neither Flame seedless nor Superior showed significant differences in magnesium contents for the three experiment seasons and calcium content for the first and second seasons, whatever the number of applications. Yield per vine significantly increased as a result of phosphorien treatments in both cultivars especially for the vines received phosphonen three times. The response of berries chemical content to phosphorien application was much more remarkable than those of physical properties, except those of cluster weight. However, T.5.S and reducing sugars were significantly increased as a result of phosphorien treatment in both cultivars. An obvious decrease in total acidity was noticed due to the use of phosphorien application, this increment was more remarkable for the Superior cultivar. The investigated treatments had no negative effect on the overall quality characteristics of berries. For overcoming soil P fixation problem as well as the stimulating growth and frUiting of Flame seedless and Superior grapeVines growing under sandy calcareous soil, it is advised to application of phosphonen at 20g / vine three times.

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High pH level in Egyptian sandy calcareous soils (soils of Sedmant Al-Gabl - Beni Suef Governorate) led to fix the phosphorus under insoluble form such as tri-calcium phosphate. In this study, two grapevine cvs Flame seedless and Superior were biofertilized with phosphorien as a source of phosphate dissolving bacteria "Badllus megaterium" at 20g once, twice or thrice addition for to three consecutive seasons namely 2005/2006, 2006/2007, and 2007/2008. The study showed that, regardless the cultivars treating the vines with phosphorlen significantly increased the leaf area and shoot length especially in the third season. Phosphorlen had a significant effect on leaf mineral contents especially NPK as compared with untreated vines. Neither Flame seedless nor Superior showed significant differences in magnesium contents for the three experiment seasons and calcium content for the first and second seasons, whatever the number of applications. Yield per vine significantly increased as a result of phosphorien treatments in both cultivars especially for the vines received phosphonen three times. The response of berries chemical content to phosphorien application was much more remarkable than those of physical properties, except those of cluster weight. However, T.5.S and reducing sugars were significantly increased as a result of phosphorien treatment in both cultivars. An obvious decrease in total acidity was noticed due to the use of phosphorien application, this increment was more remarkable for the Superior cultivar. The investigated treatments had no negative effect on the overall quality characteristics of berries. For overcoming soil P fixation problem as well as the stimulating growth and frUiting of Flame seedless and Superior grapeVines growing under sandy calcareous soil, it is advised to application of phosphonen at 20g / vine three times.

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