Randa El- Sayed, Y. (2015). Effect of Spraying Salicylic Acid on Fruiting of Valencia Orange Trees. Alexandria Journal of Agricultural Sciences, 60(3), 119-126. doi: 10.21608/alexja.2015.32317
Youness Habasy Randa El- Sayed. "Effect of Spraying Salicylic Acid on Fruiting of Valencia Orange Trees". Alexandria Journal of Agricultural Sciences, 60, 3, 2015, 119-126. doi: 10.21608/alexja.2015.32317
Randa El- Sayed, Y. (2015). 'Effect of Spraying Salicylic Acid on Fruiting of Valencia Orange Trees', Alexandria Journal of Agricultural Sciences, 60(3), pp. 119-126. doi: 10.21608/alexja.2015.32317
Randa El- Sayed, Y. Effect of Spraying Salicylic Acid on Fruiting of Valencia Orange Trees. Alexandria Journal of Agricultural Sciences, 2015; 60(3): 119-126. doi: 10.21608/alexja.2015.32317
Effect of Spraying Salicylic Acid on Fruiting of Valencia Orange Trees
Citriculture Dept. Hort. Res. Inst. ARC, Giza , Egypt
Receive Date: 20 May 2019,
Accept Date: 20 May 2019
Abstract
Growth characters, tree nutritional status, fruit set %, June drop %, yield and fruit quality of Valencia orange trees in response to spraying salicylic acid at 0.0 to 400 ppm either applied once at growth start or twice at growth start and again just after fruit setting were investigated during 2012 /2013 and 2013/ 2014 seasons. Spraying salicylic acid at 100 to 400 ppm once or twice considerably improved all growth characters , leaf pigments, N, P, K, Mg and Ca percentages, initial fruit set %, fruit retention %, yield and fruit quality over the check treatment. All salicylic acid treatments effectively reduced June drop. Using salicylic acid at 400 ppm once or twice caused a significant reduction on all the aforementioned parameters comparing with using salicylic acid at 100 to 200 ppm. Two sprays of salicylic acid were preferable than using it once in this connection. Treating Valencia orange trees twice at growth start and just after fruit set with salicylic acid at 200 ppm was responsible for promoting yield and fruit quality.
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