GROWTH AND YIELD OF CAULIFLOWER AS AFFECTED BY BORON SPRAY AND IN-ROW PLANT SPACING

Le résumé fourni par la source

A field experiment was tested in the Central Laboratory for Agricultural Climate Experimental Farm, Dokki, Giza Governorate, Egypt, during the two growing seasons of 2019/2020 and 2020/2021 on cauliflower. The aim of this research was to study the effect of plant spacing foliar spraying with different concentrations of application of boron (B) on the vegetative growth, chemical content and curds yield of cauliflower cv. Amshiry under field conditions. Plants were sprayed with 50, 100 and 200 ppm at 20, 40, 60 and 80 days after transplanting, whilst the in-row plant spacing was 0.3 and 0.5 m between plants. Results showed that boron foliar application significantly improved vegetative growth parameters, curds yield and its components and chemical composition of leaves and cauliflower plant. Likewise, using 0.50 m plant spacing significantly enhanced plant fresh weight, plant height, leaves fresh weight and leaves dry weight and chemical composition of leaves and curds. The highest yield per plant was obtained by plant spacing 0.5m combined with 200 ppm boron followed by plant spacing 0.50 m combined with 100 ppm boron. On the other hand, the production from land units increased by using 0.3 m in-row plant spacing while the production of individual plants was less than 0.5m treatment. The 200 ppm boron application gave the highest net profit per feddan followed by 100 ppm. The lowest net profit was obtained by 0.30 m plant spacing combined with control treatment.

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