Nowadays, when crops such as corn are planted, seeds, as an indispensable agricultural resource in agricultural production, have always been the key procurement targets for farmers. But many farmers' friends only know to buy seeds, but they don't know what seeds are. We buy only the most common varieties, and there are original seeds, original seeds and breeder seeds in the back. These are seeds that are much higher than the disease resistance and high yield of the improved varieties, and rarely in the seed market. sell. Below we will detail the origin of the elite species, the original species and the original species.
The improved crops are seeds that can be produced by the original species or produced by other methods, and can be used in crop production in accordance with the quality standards set by the state. The varieties have different grades, and the seeds that are propagated from the original species become the original. In the first generation, the seeds bred by the original generation are the second generation of the original species, which are sorted in order. In production, only the primary and second generation seeds are used. These seeds that are bred by the original species are called good varieties.
The original species are the original species provided by the breeder or the seeds produced according to the original production technical regulations. The original species breeding should be carried out on the plots where the droughts and floods are not harvested, and the finest on-demand is implemented. In the birthing area, field management must be strengthened, and the decontamination process should be carried out in the seedling stage, flowering stage and maturity stage. At the same time, the mixing in the process of harvesting, playing, transporting and hiding must be strictly prevented to ensure the quality of the original species.
There are two aspects of the original stock. First, there are seeds produced by the breeding unit, which have the typical characteristics of the original variety, the seeds with a purity of 100%, and the seeds provided by the breeders. The original stocks take time to breed. Long, generally three years of breeding, that is to say, breeding for three to four years, the use of thinning, unicast breeding when breeding original species, so that the individual body is fully developed, genetic traits fully expressed, During the period of growth, the plants were observed on a plant-by-plant basis, and the different plants were immediately pulled out, and all the plants that did not conform to the typical varieties were eliminated. The remaining typical single plants were mixed and the original seeds were mixed.
The seeds are divided into hybrids and conventional seeds. They are represented by corn hybrids and common wheat varieties. We generally buy all kinds of good varieties of corn instead of others, because the previous generation of hybrids is only used to cultivate good varieties and cannot be used for farmland cultivation. The use of conventional species and original species is higher than the elite species in any aspect. Most of the products we buy now are wheat varieties.
The above is the introduction of the seeds, the original species and the original species in the seeds compiled by Huinong. I have learned it?
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