锦橙开花座果及果实发育期蛋白质,氨基酸含量变化

THE FLUCTUATION OF PROTEIN AND AMINO ACID CONTENT IN RELATION TO THE FLOWERING, FRUIT-SETTING AND ENLARGEMENT OF JIN ORANGE

The flowering, fruit-setting, physiological fruit-dropping and fruit enlargement are closely related to the fluctuation of protein amino acid content. The flowering, fruit-setting, the peak of fruit-dropping and fruit enlargement are just at the time during the process of protein sharply catabolized. The more protein decreases, the more heavy fruit-dropping and quick fruit enlargement appear. The amount of protein accumulates and diminishes three times before the flowering to 2nd peak of fruit enlargement. At the first time it accumulates higher before flowering, and diminishes sharply at flowering and the first peak of fruit dropping. The flowers and young fruit dropping reach their maximum, occupying 45.17% of the total dropped fruit. The second time accumulation of protein is before the first peak of fruit enlargement, and lower than the first peak of fruit enlargement. The third accumulation of protein reaches its maximum before the second peak of fruit enlargement and diminishes sharply. During the stage of flowering, fruit-setting, physiological fruitdropping and fruit enlargement, 16 amino acids have been determined. In the 16 amino acids closely related to flowering, fruit-setting, fruit enlargement there are amino acids joining in at three stage. The general tendency of fluctuation of the protein and amino acid contents coincided with each other but in an inverse direction.