Effect of Foliar Application With Algae and Moringa Leaves Extracts on Vegetative Growth, Leaf Mineral Contents, Yield and Chemical Fruit Quality of Picual Olive Trees

Abstract

This study was carried out during 2017 and 2018 seasons on adult Picual olive cv. (8 years old) in a private orchard located at Cairo Ismailia Desert Road, (about 80 Km from Cairo), Ismailia Governorate, Egypt. Trees are grown in sandy soil, under drip irrigation system, uniform in shape and received the common horticultural practices, therefore, this work aims to study the effect of spraying different concentrations and dates spray of algae and moringa leaf extract (MLE) for tow times on the vegetative growth, leaf mineral contents, yield and fruit chemical properties of Picual olive trees. Results indicated that all different spraying treatments of algae and moringa extract at different spraying dates had a positive effect on vegetative growth, leaf mineral contents, fruit set, yield and fruit chemical properties in comparison with the control. Treatments of algae extract at 0.4% + moringa leaves extract at 2% and algae extract at 0.4% + moringa leaves extract at 4% were the most effective treatments to increase vegetative growth, improve leaf mineral content, fruit set, yield and oil content. Thus, these treatments can be recommended for commercial use under similar conditions

Effects of GA3 and Plant Extracts Spraying on Aggezi Olive Tree Growth and Fruiting in Sohag Governorate, Egypt

“…(Fuglie, 2000). In addition, these results are in harmony with those obtained by Abd El-Motty and Abd El-migeed (2010), Hafez et al (2013), Ahmed et al (2014), Abed El Hamied (2014 and Hassan et al (2019) They claimed that spraying with plant extracts from natural plants was particularly efficient at increasing fruit set, fruit retention, yield, and fruit quality. (Hegab et al, 2005 andHafez et al 2013).…”

Response of “Kalllmata” Olive Cultivar to The Foliar Application of Moringa Extract, Boron, and Zinc

“…Chaunsa white with zinc sulphate at 0.5 % increased flowers number per panicle, the percentages fruit-set. Hassan et al (2019) stated treating olive trees cv. picual with moringa extract at 0, 2 and 4% increased leaf total chlorophyll content, and fruit set percentage.…”

“…Chaunsa white with zinc sulphate at 0.5 % increased leaf mineral content from nitrogen, and potassium, boron and zinc compared with the control. Hassan et al (2019) reported that treating olive trees cv. picual with moringa extract at 0, 2 and 4% increased leaf chemical composition from nitrogen, phosphorous and potassium as compared to control.…”

Role of Spraying by Moringa Leaf, Garlic, and Turmeric Extracts in Pomegranate Leaves Mineral Content

“…Additionally, spraying 0.50 ml/L of moringa leaf extract on the orange "Washington and Murcott Tangor" cultivars considerably boosted the leaf's mineral levels from nitrogen, potassium, phosphorus, iron, zinc, and manganese than the control [42] . According to Hassan et al [43] , treating olive trees at 2 and 4% of moringa extract enhanced the leaf's chemical composition of potassium, phosphorus, and nitrogen compared to the control. These positive effects of spraying with garlic cloves extract may be related to its containing macro and micronutrients that increase metabolic and vital activities, in addition to containing many compounds such as carbohydrates, proteins, and vitamins that are transported to the leaves which increase leaves mineral content.…”