The Effect of Summer Pruning on the Production and Quality of Golden Delicious Apple Fruits in Dahr Al-Qusair Region-Homs

Wael Haddad*(1) Rashid AlSayed Omar(1) and Wessam Massah(2)   

(1). Horticulture Research Administration. General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.

(2). GCSAR, Damascus, Syria.

(*Corrsponding author: Dr. Wael Haddad. E-Mail: a waelhaddad1982@gmail.com ).

Received: 27/11/2017                                Accepted: 18/03/2018

Abstract

The research was carried out in Dahr Al-Qusair Region-Homs during three successive seasons 2015, 2016 and 2017 on Golden delicious trees, to demonstrate the effect of summer pruning on two different periods on the productivity of pruning trees in the next season, and on qualities of fruits. The results showed that the last ten days of July had insignificant differences compared with other dates in increasing the production of trees. The average of production reached 61.67 kg in the first season and 70 kg in the next season. The results showed also, that there were insignificant differences between the three dates in their impact on firmness and TSS of fruits.

Keyword: Summer pruning, Golden delicious, Productivity, Total soluble solids, Firmness.

Full Paper in Arabic: PDF

Influence of Number of Boron Foliar Spray on the Productivity and Qualitative Traits and Leaves Content of Boron in Golden Delicious Apple Cultivar in Sweida

Sami Hennawi (1) Adnan Skaker (1) Talaat Amer (1) and Samer Kiwan*(1)

(1). Sweida Agricultural Research Center, General Commission for Scientific Agriculture Research (GCSAR), Damasucs, Syria.

(*Corresponding author: Dr. Samer Kiwan. Email: samer.kiwan@yahoo.com).

Received: 17/04/2018                                Accepted: 30/05/2018

Abstract

This research was carried out at the Agricultural Scientific Research Center in Sweida, GCSAR during the growing seasons of 2015 and 2016 to study the effect of number of foliar sprays of boron on the productivity and qualitative characters of Golden delicious apple cultivar. Boric acid foliar spray (1 g.l-1) was added for once, twice or three times besides the control (without addition). The results showed that, the average of productivity increased significantly when spraying three times of the boric acid, in the two seasons (69.35 kg/tree and 125.1 kg/tree respectively), while the average yield in the control treatment was the lowest compared to other treatments (43.53 kg/tree and 59.73 kg/tree respectively). The average grading of the fruit were; excellent, first, second, and third under the addition of foliar spray for three times with boric acid and soil fertilizer addition (6.06%, 60.74, 32.54%, and 0.66% respectively), but the grading percentage  under the addition of foliar spray for twice with the soil addition of fertilizer were 4.56%, 57% , 37.61% and 0.83%, respectively, while  under the control treatment the grading percentages were 0.79%, 26.23%, 57.76% and 15.22%, respectively. It was concluded that the application of these factors contributed in the increase of the average productivity and improved the quality of the fruits.

Keywords: Apples, Golden delicious, Boric acid, Productivity, Foliar spray.

Full Paper in Arabic: PDF