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所在平台: Udemy |
课程主页: https://www.udemy.com/course/horticulture-farming/
课程评论:没有评论
**课程名称:** 园艺学 **课程概述:** 园艺学是一门培育花园植物以生产食物、药用成分,或用于舒适和观赏目的的艺术。园艺师是种植花卉、水果、坚果、蔬菜、香草以及观赏树木和草坪的农业工作者。 在温度区划方面,园艺学的温带地区无法通过精确的纬度或经度线界定,但通常包括冬季会发生霜冻(即使很少发生)的区域。因此,大部分欧洲、北美和亚洲北部地区都包含在内,尽管美国的一些地区,如南佛罗里达,被认为是亚热带。 繁殖是园艺学最基本的操作,即通过控制来延续植物。其两个目标是增加植株数量并保持植物的基本特性。繁殖可以通过有性方式(种子)或无性方式(利用特殊的营养结构或采用插条、压条、嫁接和组织培养等技术)实现。对于自花授粉植物,最常用的繁殖方法是种子。在自花授粉植物中,花粉中的雄核会 B 授花朵上的卵细胞。 植物育种是通过应用遗传学原理系统地改进植物,为园艺植物的改良奠定了科学基础。 **课程大纲:** 无
Horticulture is the art of cultivating plants in gardens to produce food and medicinal ingredients, or for comfort and ornamental purposes. Horticulturist are agriculturist who grow flowers, fruits and nuts, vegetables and herbs as well as ornamental trees and lawns. When you look at the temperature regions, temperate zones for horticulture cannot be defined exactly by lines of latitude or longitude bust are usually regarded as including those areas where frost in winter occurs, even though rarely.Thus most parts of Europe, North America, and northern Asia are included, though some parts of the United States, such as southern Florida, are considered subtropical. Propagation, the controlled perpetuation of plants, is the most basic of horticultural practices. Its two objective are to achieve an increase in numbers and to preserve the essential characteristics of plant. Propagation can be achieved sexually by seed or asexually by utilizing specialized vegetative structure or by employing such techniques as cutting, layering, grafting and tissue culture. The most common method of propagation for self-pollinated plants is by seed. In self-pollinated plants, the sperm nuclei in pollen produce by a flower fertilize egg cells of a flower on the same plant.Plant breeding, the systematic improvement of plants through the application of genetic principles, has placed improvement of horticulture plants on a scientific basis.