Al-Selwey, W. A., Alsadon, A. A., Al-Doss, A. A., Solieman, T. H., Dewir, Y. H., Ibrahim, A. A. (2021). Effect of deficit irrigation on total yield, fruit physical characteristics and nutritional value in four drought tolerant tomato (Solanum lycopersicum L.) genotypes. , 23(5), 1105-1118.
W. A. Al-Selwey; A. A. Alsadon; A. A. Al-Doss; T. H. Solieman; Y. H. Dewir; A. A. Ibrahim. "Effect of deficit irrigation on total yield, fruit physical characteristics and nutritional value in four drought tolerant tomato (Solanum lycopersicum L.) genotypes". , 23, 5, 2021, 1105-1118.
Al-Selwey, W. A., Alsadon, A. A., Al-Doss, A. A., Solieman, T. H., Dewir, Y. H., Ibrahim, A. A. (2021). 'Effect of deficit irrigation on total yield, fruit physical characteristics and nutritional value in four drought tolerant tomato (Solanum lycopersicum L.) genotypes', , 23(5), pp. 1105-1118.
Al-Selwey, W. A., Alsadon, A. A., Al-Doss, A. A., Solieman, T. H., Dewir, Y. H., Ibrahim, A. A. Effect of deficit irrigation on total yield, fruit physical characteristics and nutritional value in four drought tolerant tomato (Solanum lycopersicum L.) genotypes. , 2021; 23(5): 1105-1118.

Effect of deficit irrigation on total yield, fruit physical characteristics and nutritional value in four drought tolerant tomato (Solanum lycopersicum L.) genotypes

Journal of Agricultural Science and Technology
Article 11, Volume 23, Issue 5, 2021, Pages 1105-1118    PDF (1.18 M)
Document Type: Original Research
Authors
W. A. Al-Selwey; A. A. Alsadon; A. A. Al-Doss; T. H. Solieman; Y. H. Dewir* ; A. A. Ibrahim
Department of Plant Production, College of Food and Agriculture Sciences, King Saud University, P. O. Box: 2460, Riyadh 11451, Saudi Arabia.
Abstract
Water deficit is a major factor limiting plant productivity of fruit quantity and quality, particularly in arid and semi-arid regions of the world. The total yield, fruit physical characteristics and nutritional value of four drought tolerant tomato genotypes (KSU-TOM-102, KSU-TOM-106, KSU-TOM-107 and TL–01860) were evaluated in response to deficit irrigation (DI) under field conditions. Three levels of crop evapo-transpiration (ETc; 50%, 75% and 100%) were applied at three different growth stages (vegetative, flowering and fruiting stage) to the four tomato genotypes. Tomato genotypes differed in their responses to water deficit. Among different genotypes, KSU-TOM-102 recorded the highest average total yield (89.54 t.ha-1) under irrigation treatment with 100% of ETc during all stages as well as 75% of ETc during the fruiting stage. But, in general, total yield decreased under water deficit. Significant (P≤0.05) differences in fruits quality characteristics exerted by irrigation water treatments, tomato genotypes and their interactions. Irrigation with water at 50% ETc at all growth stages significantly (P≤0.05) increased vitamin C, titratable acidity, total soluble solids and total sugar contents for tomato ‘KSU-TOM-107’ followed by ‘KSU-TOM-102’. But, this increase in nutritional value was accompanied with decrease in total yields by nearly 40-50%. KSU-TOM-102 irrigated with water at 75% ETc at fruiting stage or vegetative stage recorded 0% and 12% reduction of the total yield, respectively, while maintaining good nutritional value as compared with 100% of ETc during all stages. Therefore, these treatments can be recommended as irrigation management strategy for tomato ‘KSU-TOM-102’ production under field conditions.
Keywords
fruit quality; Nutritional Value; water stress; water saving
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