Seasonal Changes in Starch Concentration in Relation to Tree Phenology,Orchard Management and Alternate Bearing in Litchi(Litchi chinensis Sonn.) in South Africa
Like in all woody plants,carbohydrates are also important in the growth of litchi trees. There are strong seasonal influences in carbohydrate reserves which reflect the growth stages of a tree such as vegetative shooting,flowering and fruit growth.The starch reserves of HLH Mauritius litchi trees were determined as part of an orchard management program. Wood samples from the main branches of trees of various treatments were taken up to six times a year according to certain phonological stages of the trees. The starch content was analyzed using a modified AOAC method. Starch content varied from year to year,reflecting alternate bearing,as well as within a year,reflecting tree phenology. Vegetative growth, flowering and fruit growth reduced starch reserves while rest periods,such as the end of fruit growth until new vegetative flushing and the winter rest period, increased starch reserves again.
Litchi chinensis Sonn carbohydrate photosynthesis vegetative growth fruit growth water stress
R.B.Cronje P.G.Mostert
ARC-Institute for Tropical and Subtropical Crops Private Bag X11208,Nelspruit 1200 South Africa Mostert Consulting Services P.O.Box 3799,Nelspruit 1200 South Africa
国际会议
福州
英文
437-442
2008-08-25（万方平台首次上网日期，不代表论文的发表时间）