一、 Concept of propagation 由旧个体产生新个体的现象叫繁殖。繁殖可以分 (一) vegetative propagation营养繁殖:扦插、压条、嫁接和分株; (二) asexual reproduction无性生殖(孢子生殖);

Study Goals of This Chapter Main Objectives in Current Plant Breeding General Principles for Decision of Plant Breeding Objectives

Hybridization Crossing Sexual Crossing Asexual Crossing Distant Crossing-interspecific Crossing Intraspecific Crossing-inter-varietal Crossing In this chapter: Hybridization Breeding i.e. CROSS BREEDING

甘肃农业大学：《药用植物栽培学》课程教学资源（实验教案，打印版）

甘肃农业大学：《药用植物栽培学》课程教学资源（理论教案，打印版）

甘肃农业大学：《药用植物栽培学》课程教学资源（教学大纲，打印版）

General Characteristics A. Micronutrients are required by all plants but in smaller amounts compared to the macronutrients Deficiencies of micronutrients can reduce growth just as much as deficiencies of macronutrients Remember the \Law of the minimum

The principles of application fertilizers Law of the Minimum: the crop's yield is restricted by the lack of one element, even Mg- al Zn S though there may be sufficient quantities of all the

Concept of plant nutrition Plant nutrition is a term that takes into account the interrelationships of mineral elements in the growth medium as well as their role in plant growth

Soil fertil Soil fertility is the characteristics of soil that enables it to Provide nutrients in adequate amounts in adequate time In appropriate balance for growth of particular plant(s)