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Statistical modeling of the effect of physio-biochemical parameters on water use efficiency of grape varieties, rootstocks and their stionic combinations under moisture stress conditions

SATISHA, J ; PRAKASH, G. S ; VENUGOPALAN, R

Turkish journal of agriculture and forestry, 2006, Vol.30 (4), p.261-271 [Periódico revisado por pares]

Ankara: Tubitak

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Título:
Statistical modeling of the effect of physio-biochemical parameters on water use efficiency of grape varieties, rootstocks and their stionic combinations under moisture stress conditions
Autor: SATISHA, J ; PRAKASH, G. S ; VENUGOPALAN, R
Assuntos: abscisic acid ; absisik asit ; Agricultural and forest climatology and meteorology. Irrigation. Drainage ; Agricultural and forest meteorology ; Agronomy. Soil science and plant productions ; anaçlar ; Bahçe Bitkileri Ürünleri ; Biological and medical sciences ; Bitki Su Ilişkisi ; correlation ; cultivars ; Economic plant physiology ; Fundamental and applied biological sciences. Psychology ; General agronomy. Plant production ; Genetics and breeding of economic plants ; grapes ; Horticultural Crops ; istatistiksel analizler ; korelasyon ; kültür çeşitleri ; modelleme ; modelling ; moisture ; nem ; Plant Water Relations ; regression analysis ; regresyon analizleri ; rootstocks ; statistical analysis ; stres ; stress ; su kullanım etkinliği ; Varietal selection. Specialized plant breeding, plant breeding aims ; varieties ; Water relations, transpiration, stomata ; water use efficiency ; çeşitler ; üzüm
É parte de: Turkish journal of agriculture and forestry, 2006, Vol.30 (4), p.261-271
Notas: TTAR
Descrição: The effect of various physio-biochemical parameters on the water use efficiency (WUE) of grape varieties, rootstocks and budded vines was studied in 3 separate experiments at 3 levels of irrigation (100%, 50% and no irrigation) for 14 days of stress cycle. None of the varieties or rootstocks could survive beyond 4 days under the no irrigation treatment. Considerable genetic variability was observed for WUE with respect to photosynthetic rate, transpiration rate, stomatal conductance, root to shoot length ratio, abscisic acid, zeatin riboside, carbon isotope discrimination etc. among grape rootstocks, viz., Dogridge, 1613 C, Salt Creek, St. George and Vitis champinii (VC) clone, and varieties, viz.. Flame Seedless, Thompson Seedless, Sharad Seedless and Tas-A-Ganesh under 50% moisture stress. Among the rootstocks Dogridge was the most efficient water user, followed by Salt Creek and VC clone, while among the varieties Flame Seedless was the most efficient water user, followed by Thompson Seedless and Sharad Seedless at 50% moisture stress. Sharad Seedless on its own root, which was the least efficient water user under 50% soil moisture stress, increased its WUE when budded on efficient water using rootstocks like Dogridge and Salt Creek. A strong positive correlation was observed between WUE and photosynthetic rate, stomatal conductance, root to shoot length ratio and abscisic acid, while a negative correlation was observed with cytokinin and transpiration rate. The regression model revealed photosynthetic rate and transpiration rate as the major contributing factors for variation in WUE of rootstocks, varieties and budded grape vines under moisture stress conditions.
Editor: Ankara: Tubitak
Idioma: Inglês;Turco

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Statistical modeling of the effect of physio-biochemical parameters on water use efficiency of grape varieties, rootstocks and their stionic combinations under moisture stress conditions

SATISHA, J ; PRAKASH, G. S ; VENUGOPALAN, R

Ankara: Tubitak

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