'大叶大果'甜橙树冠不同部位果实品质差异研究

摘要

本文开展了"大叶大果"甜橙树冠不同部位果实品质差异的研究.结果表明:树冠上部果实可溶性固形物和固酸比值最高;果实取样量在5～30个范围内可溶性固形物、可滴定酸含量及固酸比差异均不显著;柑橘树冠不同方向对果实可溶性固形物和可滴定酸均无显著差异,但固酸比差异显著;果实下部可溶性固形物最高.%The quality variation in ‘ large leaf and large fruit ’ oranges from different locations of the tree was studied. The results ahowed that no diffenences were found for total soluble solid ( TSS) , titratable acid ( TA) and TSS/TA ratio from the samples ranged from 5 to 30 pieces of fruit for each. The highest solids and TSS/TA ratio were in fruit picked from the uppermost outside of the tree and but no difference was found whatever on the south, north, east and west exposures in this study. Sigificant differences were found for TSS/TA ratio from different sampling directions on the tree and also the highest TSS was found from fiuit apex.