This study was carried out to evaluate effects of kaolin (KA) and fulvic acid (FA) as antitranspirants (ATs) on relative water content (RWC) of leaves, net CO2 assimilation rate (CO2 AR), yield, fruit quality and irrigation water use efficiency (IWUE) of tomato plants (Solanum lycopersicumL.). The plants were grown under three water regimes based upon crop daily water consumptive use (ETc). These regimes included 100%ETc, 75%ETc and 50%ETc. Field experiments were achieved for two successive seasons 2012 and 2013 under drip irrigation system in sandy soil at El-Bostan, El-Beheira Province, Egypt. The results revealed that both ATs enhanced effectively the physiological activities and yield production of tomato plants, particularly at water regime of 75% ETc, but they did not compensate the negative effects caused by sever water regime of 50% ETc. FA antitranspirant was more effective than KA. Under water regime of 75%ETc, application of 1.5 FA ml L-1 at 21-day intervals increased IWUE by 34.82% compared to untreated plants. Foliar spray by FA reduces the values of crop response factor than KA in the two seasons. These led to conserving soil water and thereby reduce the applied water by 25% of irrigation water. In comparison to untreated FA plants, the FA (75%ETc) led to decreases in the yield to 93.4% of that irrigated at 100%ETc. There were no significant differences in the fruit quality (titratable acidity and vitamin C) between both ATs treatments.
A.M., A., A.M., A., & A.E., A. (2015). Effect of Kaolin and Fulvic Acid Antitranspirants on Tomato Plants Grown under Different Water Regimes. Alexandria Science Exchange Journal, 36(April-June), 169-179. doi: 10.21608/asejaiqjsae.2015.2875
MLA
Aggag, A.M.; Alzoheiry, A.M.; Abdallah, A.E.. "Effect of Kaolin and Fulvic Acid Antitranspirants on Tomato Plants Grown under Different Water Regimes". Alexandria Science Exchange Journal, 36, April-June, 2015, 169-179. doi: 10.21608/asejaiqjsae.2015.2875
HARVARD
A.M., A., A.M., A., A.E., A. (2015). 'Effect of Kaolin and Fulvic Acid Antitranspirants on Tomato Plants Grown under Different Water Regimes', Alexandria Science Exchange Journal, 36(April-June), pp. 169-179. doi: 10.21608/asejaiqjsae.2015.2875
VANCOUVER
A.M., A., A.M., A., A.E., A. Effect of Kaolin and Fulvic Acid Antitranspirants on Tomato Plants Grown under Different Water Regimes. Alexandria Science Exchange Journal, 2015; 36(April-June): 169-179. doi: 10.21608/asejaiqjsae.2015.2875
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