Effect of zinc and boron nutrition on carbon and nitrogen metabolism in leaf of balsam pear (Momordica charantia) Effects of zinc and boron nutrition on balsam pear (Momordica charantia) yield and quality,and polyamines,hormone,and senescence of its leaves The Application of The Gray System Theory on The Comprehensive Evaluation on of The Main Characteristics of Balsampears The Application of The Gray System Theory on The Comprehensive Evaluation on of The Main Characteristics of Balsampears Effects of zinc levels on endogenous hormone and nitrogen metabolism in leaves and yields of balsam pear Effect of Irradiation on Quality and Bacterial Populations in Fresh-cut Balsam Pear Effects of zinc on carbon metabolism and its enzymes activities in leaves of balsam pear