Effects of Film Mulching Drip Irrigation on Korla Fragrant Pear

Abstract：The growth characters, fruit quality and yield of Korla fragrant pear were studied under film mulching drip irrigation. The results showed that the soil water content of the root zone of fragrant pear was notably increased under film mulching drip irrigation （MD）, at 0 to 60 cm layers, soil water eontent of MD were higher than non-covered treatment （ND） and flood irrigation （CK）, the relationship between soil water content and leaf water content is higher than 60 to 100 cm layers. Leaf water content and chlorophyll content appeared positive linear correlation and increased with soil water content increased. MD markedly improved nutritional growth characters of fragrant pear, fruit setting percentages and single fruit weight were increased and fruit shape index were improved. Compared with ND and CK, the first order fruit rate increased 9.42% and 25.79%, yield increased 15.50% and 38. 91%, and WUE increased 10.40% and 45.26%, respectively. Fruit sugar acid ratio is increased under MD and fruit hardness was decreased, so promoted the fruit savor.