Effect of Foliar Spraying with Different Concentrations of ‎‎(Huzone) Nutrients and Pruning Methods on Growth of ‎Watermelon (Citrullus lanatus L.)‎

Fawaz Al-haji Abboud (1) Ibrahim Nada Al-Shetewi(1) and Nada Huseen ALAmeir* (1)

(1). Horticulture Department, Faculty of Agriculture, University of Al Furat, Deir Al-Zour, Syria.

(*Corresponding author: Eng. Nada Huseed ALAmeir. E-Mail: mmnndd9074@gmail.com).

Received: 07/12/2019                               Accepted: 25/03/2019


The research was carried out during the agricultural seasons of 2017 and 2018 at a private farm in Deir Al-Zour on watermelon plants (Citrullus lanatus L.) Niagara variety to study the effect of using different concentrations of Huzone nutrients (0, 2, 4 and 6 cm3/L per plant), at a rate of three sprays, the first spray was accompanied at the stage of 2nd  leaf formation, and the second was at the beginning of fruit stage formation, while the third spray was  two weeks before fruits maturity. The pruning methods were (Method A: Pruning the plants to three stems while keeping one fruit on each stem, the second method B: Pruning the plants to four stems while keeping the one fruit on each stem, and the third method was pruning the plant to five stems and keeping one fruit on each stem, besides the control (without pruning). Randomized Complete Block Design RCBD was used with three replicates per treatment. The results showed that there was a significant effect of pruning and Huzone nutrient on all studied traits. The control (without pruning) which treated with a concentration of 4 cm3/L achieved the highest value in the number of leaves, and reached 231-234 leaves/plants for the first and second seasons respectively. The highest value of the leaf area when using the pruning method on three branches and spraying with a concentration of (4 cm3/L) gave a value of (3131-3120 cm2) for the first and second seasons respectively. The interaction between spray and pruning significantly affected the number of days to flowering, where this trait decreased when using 4 cm3/L of Huzone with the pruning method on three branches compared to the other treatments. The number of male flowers decreased in the plants which pruned on three branches and sprayed with a concentration of 4  cm3/L of Huzone, where the number of male flowers was (18.4-20.9 flower/ plant) for the first and second seasons respectively compared to the control and other concentrations. In terms of the number of female flowers, it increased at pruning on three branches and by adding a concentration of 4 cm 3/L (13.93-15.2) compared with the control and other concentrations.

Key words: Watermelon, Citrullus lanatus L., Nutrient Huzon, Pruning, Vegetative growth, Flowering.  

Full paper in Arabic: PDF