柑桔具有产量高、品质好、耐贮运等特点,故成为世界果树中发展最快、销售量最多的水果。良种是获得高产、优质果品的先决条件,因而选育种受到各主产国广泛的重视。为了加速我区柑桔良种选育工作,现介绍几个有关的育种问题。一、明确选育种目标选种目标是选种工作的主攻方向,同时要求具备多种优良性状很难实现。特别是芽变选种(包括无性繁殖的单株选择)更为困难,因为 Citrus with high yield, good quality, storage and transportation characteristics, it has become the world’s fastest growing fruit trees, the largest sales of fruit. Varieties are prerequisites for obtaining high-yielding and high-quality fruits, and breeding and breeding are therefore widely valued by all major producing countries. In order to speed up the breeding of citrus seeds in our district, several related breeding problems are introduced. First, a clear breeding target Breeding target is the main direction of selection of work, while requiring a variety of excellent traits is difficult to achieve. In particular, mutation selection (including clonal selection of individual plants) is more difficult because