Foliar application of glycinebetaine and chelated calcium improves seed production and quality of common bean (Phaseolus vulgaris L.) under water stress conditions.

Paper

Foliar application of glycinebetaine and chelated calcium improves seed production and quality of common bean (Phaseolus vulgaris L.) under water stress conditions.

Published 2011 · A. El-Yazied

Research Journal of Agriculture and Biological Sciences

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Abstract

Two field experiments were carried out during the two growing summer seasons of 2008 and 2009, at the experimental farm, Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, Egypt, in order to investigate the effect of foliar application of glycinebetaine and chelated calcium on vegetative growth, seed yield and quality of common bean under irrigation at different percentages of available soil water depletion (30, 45, 60, 75 and 90%) in clay loam soil. Three levels of glycinebetaine (0, 2, and 4 mM/L), were applied after 30 and 50 days from sowing as well as three levels of chelated calcium (0, 250, and 500 ppm), applied after 40 and 60 days from sowing. Results indicated that irrigation at depletion of 30% available soil water and spray the plants with glycinebetaine or chelated calcium at 2 mM/L and 500 ppm, respectively, increased leaf number and area as well as plant dry weight in the as compared with the other studied irrigation treatments. The same treatment also increased chlorophyll reading, calcium percentage and decreased proline in leaves as compared with the other studied irrigation treatments in the two seasons. Moreover, irrigation at depletion of 30% available soil water, foliar application of 2 or 4 mM/L glycinebetaine and 500 ppm chelated calcium produced the highest seed yield and quality (electrical conductivity, seed testa thickness, protein percentage, total carbohydrate and seedling emergence percentage and rate under field conditions). In addition, the foliar spray of glycinebetaine and chelated calcium improved seed yield and quality under water stress conditions (irrigation after the depletion of 75-90% available soil water) compared to control treatments. It was therefore concluded that productively and dry seed yield characteristics of common bean were responded positively to irrigation at depletion of 30 % available soil water in clay loam soil, foliar application of 2 or 4 mM/L glycinebetaine and 500 ppm chelated calcium.

Study Snapshot

Foliar application of glycinebetaine and chelated calcium improves seed yield and quality of common bean under water stress conditions.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Foliar application of glycinebetaine and chelated calcium improves seed production and quality of common bean (Phaseolus vulgaris L.) under water stress conditions.

References

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