Definition of pollinated varieties, explanation of terms

Explanation of crop breeding terms: Crop breeding refers to the science of studying the theory and method of breeding and propagating excellent crop varieties.

1. Crop breeding refers to the technology of improving the genetic characteristics of crops to breed high-yield and high-quality varieties, also known as crop variety improvement. It is based on genetics and comprehensively applies knowledge from a variety of disciplines such as plant ecology, biochemistry, plant pathology, and biostatistics. Crop breeding is a kind of biotechnology with low investment and high efficiency, which is of great significance for the development of crop production.

2. Crop breeding methods are closely related to the propagation methods of crops. Sexually propagated crops can be basically divided into two categories: self-pollinating crops with a natural outcrossing rate of less than 4% and cross-pollinating crops with a natural outcrossing rate of more than 50%. The often outcrossed crops in between are often classified as inbred crops because of their applicable breeding principles and methods are basically the same as those of inbred crops.

3. The inbred crop population is a mixture of some homozygous genotypes, or it may be a single genotype, with little heterogeneity or homogeneity, and a high degree of genetically homozygousity. Their inbred offspring have normal fertility and no decay; After several generations of self-pollination, the hybridization reforms to a mixture of many homozygous genotypes. The breeding methods that should be used for this type of crop are mainly mixed selection, pure line breeding, cross breeding (mainly inter-variety crossing) and backcross reputation breeding.

This refers to the fact that plants need to be pollinated at a certain time of development, so that they can bear fruit and grow better, which is very important, including animal pollination, artificial pollination, and wind pollination.

It refers to a process that plants must go through after they bear fruit, which can generally be divided into two types, one is cross-pollination, and the other is self-pollination.

Pollination is the act of spreading pollen to flowers. There are two types of pollination, one is self-pollination and the other is cross-pollination, both of which can make flowers grow better.

Pollination is a process by which plants form fruits, and the movement of pollen from anthers to stigma is called pollination.

There are types of self-pollination, cross-pollination, artificially assisted pollination, etc.

Pollination - paraphrasing:

The process by which pollen is transferred from stamens anthers to the stigma of the pistil. There are two types of pollination: natural pollination and artificial pollination.

Pinyin [shòu fěn].

Example sentence: The bee flies into the flowers and is busy collecting nectar.