Effect of the Different Types of Bags and Bagging Time on the Mantianhong Pears Fruit Quality and Storage

The bagging experiment with 5 different types of bags and at three different periods on Matianhong pear were conducted,the result indicated that bagging could reduce fruit rust significantly,increase the flesh firmness,but decrease soluble solids content slightly.When fruit were bagged early,the single fruit weight was reduced obviously;the split fruit,the fruit rust and sunburn were increased significantly.When bagging fruit late,the black spot in plastic bag is increased significantly.Fruit rust is increased significantly with the plastic bags,the background color is green,and the red color of fruit was not better.The fruit dehydrates obviously in storage with plastic bag,paper bag + plastic bag and tricolor bag.Fruit storage with black stripe bag and double-layer black bag is much better than others.Therefore,the black stripe bag during the middle third ten-days of May(30-35 days after the full bloom) was the best.