Effect of 1-methylcyclopropene (1-MCP) on Softening and Cell Wall Metabolism of Harvested Averrhoa carambola Fruits Callus Induction and Plant Regeneration from Endosperm of Averrhoa carambola Stress Effects of Simulated Acid Rain on Three Fruit Species Study on the vessel elements and tylosis of secondary xylem in Averrhoa carambola Flower Bud Differentiation and Changes of Carbohydrate in New Shoots inAverrhoa carambola Flower Bud Differentiation and Changes of Carbohydrate in New Shoots inAverrhoa carambola