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(一) 栽培柑桔最初使用的是实生苗。尔后,随着栽培水平的提高和商品性柑桔生产的发展,实生苗终为嫁接苗所代替。这一演变,世界各主产柑桔的国家虽有早或迟,而几乎无一例外。现今柑桔的商业品种实际上都是嫁接繁殖的。 以嫁接苗取代实生菌,无疑地是柑桔栽培史上一场大变革,给柑桔科学理论和生产实践均带来深远的影响。嫁接苗是共生体,砧木和接穗二者互相制约和依赖,共同决定着嫁接植株形态上、生理生化上、以及生长结果习性上的各种表现。果树学的
(A) The first use of cultivated citrus is a seedling. Later, with the improvement of cultivation level and the development of commercial citrus production, the seedlings were eventually replaced by grafted seedlings. With this evolution, almost no exception is made to the countries of the world that produce citrus, either early or late. Today’s commercial varieties of citrus are actually grafted. Grafting seedlings to replace real bacteria, is undoubtedly a big change in citrus cultivation history, to the citrus scientific theory and production practices have far-reaching impact. Grafted seedlings are symbionts, rootstock and scion both restrict and depend on each other, which together determine the morphological, physiological and biochemical, as well as the growth performance of the grafted plants on the performance of a variety of performance. Fruit tree learning