Physiological Responses for Growth and Yield of Some Faba Bean Varieties Under Different Plant Densities

Two field experiments were conducted at Mallawi Agricultural Research Station, Minia Governorate during 2013/2014 and 2014/2015 seasons to study of some faba bean varieties (Giza 843, Giza 3, Giza 716, Nubarai 1and Sakha 3) under different plant densities 84.000 plants /fed. (spacing between rows 50 cm), 70.000 plants /fed.(spacing between rows 60 cm) and 60.000 plants /fed. (spacing between rows 70 cm) and plant distribution (sowing on one and two sides/row) on yield and yield components of faba bean. Results showed that faba bean cultivars varied highly significantly on plant height, weight, Number of pods/plant, 100-seed weight (g), Seed yield/plant and Seed yield (ardab/feddan), during the two growing seasons. The highest value of plant height, Number of pods/plant and Seed yield (12.93 pod and 11.18 ardab/fed.) was obtained by Giza 843 variety compared with the other varieties in both seasons. While Giza 716 produced the highest values of plant weight (62.13 and 62.5 g) in both seasons, respectively. The heaviest 100-seed weight (g) and Seed yield/plant were achieved by Nubarai 1 variety in the first and second seasons. Plant density had significant effect on plant height. In the first and second seasons 84000 plants/feddan recorded the tallest plants (101.01 and 101.25 cm, respectively). Concerning the plant distribution, planting on two sides/rows produced the heightSeed yield (9.88 and 8.43 ardab/fed.) in both seasons, respectively. Compared with the planting on one side /row.
Regarding to the first and second order interactions in both seasons the results showed that the differences in seeds yield per feddan were not significant.