STUDIES ON SOME FABA BEAN GENOTYPES GROWN UNDER DIFFERENT ENVIRONMENTAL CONDITIONS
Menoufia Journal of Plant Production
Two field experiments were carried out at the Experimental Farm, Faculty of Agriculture, Menoufia University, Shebin El-Kom, Egypt to investigate the effect of plant densities (80000, 120000 and 160000 plants/fed), phosphorus fertilization systems (7.5 kg P 2 O 5 /fed as soil application + twice foliar application with 0.5% phosphoric acid, 15 kg P 2 O 5 /fed as soil application + once foliar application with 0.5% phosphoric acid and 22.5 kg P 2 O 5 /fed as soil application) on growth and
... on growth and productivity of some faba bean cultivars (seasons. The results obtained could be summarized as follows: 1-The lowest plant density (80000 plants/fed) surpassed the other densities in most growth characters, crop growth rate, number of flowers/plant, total chlorophyll, water relations%, seed yield/ plant and its components and seed chemical analysis. However, increasing plant density up to 160000 plants/fed increased seed, straw and biological yields/fed. 2-Giza 3 and Sakha 4 cultivars surpassed the other cultivars in most characters studied. 3-Fertilization system with 15.0 kg P 2 O 5 /fed as soil application + once foliar application with 0.5% phosphoric acid surpassed the other systems for produced the highest values of most characters studied. 4-From the interaction data, it could be concluded that planting Giza 3 cultivar at the highest density (160000 plants/fed) as well as fertilized with 15 kg P 2 O 5 /fed as soil application + once foliar application with 0.5% phosphoric acid being the most effective combined treatments for maximizing seed yield/fed under the experiment conditions.