1 正确认识优良品种首先人们要认识到品种具有一定的地区性和条件性。一个优良品种只是具备了表现优良性状的潜在能力,即含有优良的遗传基因。其性状能否表现出来,还要看其所处条件是否适宜。任何品种都有其最适应的环境条件,如土壤条件、气候条件、栽培条件等。将品种种植在对其有利的环境条件下,品种就能正常地生长发育,表现出应有的优良性状。如果品种所处的条件与其本身的要求相违背,则生长发育不良,性状表现很一般或很差,所以品种类型不同,就应给予不同的条件,不能一刀切,没有万能的品种。其次,人们还应该认识到优良品种的性状表现与种子质量密切相关。种子质量包括品种纯度、种子清洁度、发芽力、饱满度及病虫感染情况等。优质种子应为纯度高、清洁、发芽力强、充实饱满无病虫的种子,据测 A correct understanding of fine varieties First of all, people should recognize that the species has a certain regional and conditional. A good breed simply has the potential to perform well, ie contains good genes. Whether its performance can be demonstrated, but also depends on the conditions in which it is appropriate. Any variety has its most suitable environmental conditions, such as soil conditions, climatic conditions, cultivation conditions. The species planted in its favorable environmental conditions, the species will be able to grow normally, showing the due good traits. If the breed is in conflict with its own requirements, its growth and development are poor and its traits are very poor or normal. Therefore, different types of breeds should be given different conditions, which can not be applied across the board without any omnipotent variety. Second, one should also recognize that the traits of fine breeds are closely related to the quality of the seeds. Seed quality, including species purity, seed cleanliness, germination, plumpness and pest infections. High-quality seeds should be high purity, clean, strong germination, full full of pest-free seeds, measured