‘国光’苹果树两种冠形的光合效率和干物质生产  

A STUDY ON THE PHOTOSYNTHETIC EFFICIENCY AND DRY MATTER PRODUCTION OF TWO CROWN-SHAPES OF 'RAILS' APPLE TREES

作　　者：李丽[1] 张艳茹[1] 常立民[1] 

机构地区：[1]河北省农林科学院昌黎果树研究所,昌黎066600

出　　处：《园艺学报》1992年第3期221-226,共6页Acta Horticulturae Sinica

摘　　要：对‘国光’苹果两种树冠结构、光照特点、光合效率、干物质的生产与分配、果品的产量与品质进行了研究。探明双层形的光照状况明显优于圆头形,其光合强度、光合效率、各器官干物质积累的总量、果实干物质的积累量,平均每公顷产量比圆头形分别高25.45％、12.47％、15.31％、50.69％、19.18％,且果品质优,产量稳定。该研究结果经在河北省大面积推广应用,其增产、增收效果十分显著。A comparative study was carried out, 1982~1985, on the crown structure, photosynthetic characteristic, photosynthetic efficiency, production and distribution of dry matter, fruit yield and quality of two chief shapes of crown-two-layer-crown and round-head-crown-by 30-year-old 'Ralls'apple trees in the orchard of Changli Fruit-tree Research Institute, Hebei Academy of Agriculture and Forestry Sciences. The result of this study verified that the illumination phase of two-layer-crown was much preferable to the round-head-crown.Its photosynthetic rate, photosynthetic efficiency, total dry matter accumulation of various organs, dry matter accumulation of fruit and average yield per 0.066ha were 25.45% , 12.47%, 15.31%, 50.69%, 19.18% respectively higher than the round-head-crown. And its fruit was of high grade quality and stable yield. The result of this study verified its outstanding capability in raising fruit yield and income when extensively introduced to different apple growing districts in Hebei Province.

关 键 词：国光苹果 冠形 光合作用 苹果树 

分 类 号：S661.101[农业科学—果树学]