Interactive Effects of Calcium and Boron Application on Nutrient Content, Growth and Yield of Faba Bean Irrigated by Saline Water

Abstract

Faba bean (Vicia faba L. var. Nobaria 12) was grown under saline irrigation water (1.0% Sea salt EC iw = 15.2dS m -1 ) and none saline water (Control, EC iw = 0.64dS m -1) and subjected to soil application of calcium (0,100 and 200ppm Ca as Calcium hydroxide) and foliar application of boron (0, 5 and 10ppm as boric acid). Results indicated that the reduction in growth and yield was found proportional with increasing salinity of irrigation water at all studied parameters but application of calcium and boron minimized the deleterious effects of salinity up to various extents. The significant improvement was observed in the shoot and root weight, chlorophyll content of leaves, due to the application of 200ppm calcium combined with foliar application of 5ppm boron under both non saline and saline conditions of irrigation water. Also, Pod and seed yield was increased as affected by Ca and B application under both saline and none saline irrigation water. In general, K + /Na + and Ca 2+ /Na + ratios of faba bean shoot was lower under saline irrigation water condition as compare to none saline water. Foliar spray of Boron at 5ppm was found much effective to minimize K + /Na + and Ca 2+ /Na + ratios and alleviating salinity hazard. Excess of Boron caused deleterious effects on plant growth indicating Boron toxicity at 10ppm B applied as foliar application.

Humic acid and boron treatment to mitigate salt stress on the melon plant

“…The maximum values of fruit mass and total yield were obtained by the application of boron spray 50 ppm. The promotion effect of boron application on the plant productivity has also been detected by many studies, Davis et al (2003) in tomato, Baranwal et al (2017) in guava ,also by Hellal et al (2015) in faba bean under saline conditions. The interaction between humic acid and boron showed a positive effect on the yield of melon under saline conditions, the highest values for fruit mass and total yield were recorded in plants received 21 l.ha -1 of humic acid plus 50 ppm of boron spray.…”

“…Boron foliar application led to significant increases in the contents of N, K, and Ca in plant leaf, and fruit TSS, while the sodium content in leaves was decreased as compared with the control group, however, the increase and decrease in the chemical parameters were highly statistically significant in plants sprayed with 50 ppm of boron. The effect of boron spray on the content of chemical parameters in plants has also been observed by Davis et al (2003) for N, K and Ca in tomato, Hellal et al (2015) for K, Ca and Na in faba bean and Baranwal et al (2017) for TSS in guava fruits. A cooperative interaction between the humic acid 21 l.ha -1 and boron spray 50 ppm was obtained, which increased N, K, and TSS values and decreased Na and Ca values, whereas the highest values of Na and Ca were recorded with the control treatment.…”

“…It is necessary for the flowering and fruiting processes, from the germination of pollen and growth of pollen tube to growth and development of fruit (Krudnak et al, 2013), enhances the nutrient status, marketable yield and shelf life of fruits (Davis et al, 2003). Boron foliar spray mitigates the deleterious effects of salt stress and enhances the growth performance and productivity (Hellal et al, 2015). However, the availability of boron element decreases when the soil pH is higher than 7 in the saline-alkaline soil (Brady, 1990), boron deficiency has an unfavorable impact on the physiological processes of plants, thus diminishing growth and yield of plants (Pinho et al, 2010).…”

Effect of sorbitol and boron on the growth and seed quality of faba bean (Vicia faba L.)

“…Boron is important for the process of holding the formation of seeds inside the pods and the representation of lignin, therefore it has a role in building cell walls (Jasim and Obaid, 2014). The boron treatments led to increase in the seed quality parameters and this may be due to its ability in playing a vital role in the formation of cell walls and facilitating the movement and transfer of photosynthetic products from leaves to the pods such as the transfer of sugars and carbohydrates (Hellal et al, 2015). The findings are in harmony with those of (El-Yazied and Mady, 2012).…”