Effect of Plastic Film Covering of Tree Canopy on Fruit Color and Hormone Contents of Orah mandarin
The effects of plastic film covering of tree canopy on orah fruit color and the contents of abscisic acid(ABA),gibberellin(GA3),indoleacetic acid(IAA)and zeatin riboside(ZR)were studied.The results showed that canopy film covering could make the fruit redder,a deep orange-red color,and the peel contain more ABA and less GA3,IAA and ZR.