Responding Yield and Fruit Quality of Salmy Date Palm Cultivar by Foliar Application of Gibberellic Acid and Humic Acid

Abstract

Many researchers seek to increase the productivity of date palm and improve the fruit quality in most countries of the world. Therefore, the aim of this study was influence both GA3 at (100 & 200 ppm) and humic acid at (10 & 20 cm/L) individually or collectively on productivity and fruit quality of the promising dates Salmy cultivar. The present study was carried out during 2018 and 2019 seasons on 10 years old Salmy date palm. The inflorescences were sprayed at three times (the first was 3 hours before pollination, the second was 4 week after pollination and the third was 8 week after pollination). In general, all tested treatments were significantly increased bunch weight, yield and fruit quality (physical and chemical properties) in both seasons as compared with control. Spraying inflorescences of Salmy date palm with the combined treatment (200 ppm GA3 + 20 cm/L humic acid) was the best treatment in this regard and a good recommendation to increase the production and improvement fruit quality of Salmy date palm cultivar under the current study conditions.