There are many varieties of strawberries, varieties are updated quickly, there is a wide distribution area, and there are many types of production. The following eight points should be remembered when introducing strawberries.
1, according to the purpose of cultivation, the local environment and facilities conditions for comprehensive analysis to determine the introduction of species. For example, in the case of open cultivation for the purpose of selling fresh fruit, the type of fruit should be large, early maturity, high yield, good palatability, strong fragrance, beautiful appearance, high hardness, strong resistance to disease, strong resistance to stress, and high market prices. Excellent varieties. In the north, it is also necessary to have frost-resisting and frost-proofing, and in the south, it must be resistant to the heat of summer and autumn. When using greenhouses or greenhouses to promote or semi-promoting cultivation, it is advisable to choose varieties that are shallow, superior quality, long harvesting period, resistant to disease, high yield, large size, good coloring, and high commodity rate, such as Zhang Ji, ghosts, and anger. Fergenia, Tudela, Hada, Daselekte, Tongzi No. 1 and other foreign fine varieties.
2. Appropriate and high economic value pollination varieties should be selected for introduction, and reasonable combinations of early, middle and late-maturing varieties should be adopted. This will facilitate cross-pollination, improve quality and yield, and also extend the supply period of fresh fruit, balance the market, and ease The labor force is tight, and the proportion of pollination varieties generally accounts for about 20%.
3, introduction should pay attention to whether the introduction of the channel is formal, can not be arbitrarily blind seedling seedlings in the market to buy seedlings, to the introduction of reliable units, it is best to directly to the original breeding or seedlings for introduction, so that on-site inspection and advice.
4. It is necessary to provide detailed introduction materials for the cited varieties, and to predict the adaptability and cultivation performance of the introduced varieties based on their genetic relationship, history and distribution.
5. The introduced domestic varieties should adopt the varieties that have passed the examination and denomination approved by the provincial level; or the experimental cultivation has been well-received and has been widely distributed and is rapidly developing.
6, it is best to introduce non-toxic, high-quality, pure seedlings. The virus-free seedlings that promote cultivation by tissue culture method should be complete, with well-developed roots, more white roots, and yellow-green leaves. There should be 6-8 leaves in the seedlings, 1.2-1.5 cm thick rhizomes, and 25-30 g seedling weight. Such seedlings are suitable for cultivation in sandy loam. The large seedlings cultivated in the clay field should have 8 leaves, with a rhizome thicker than 1.5 cm and a seedling weight exceeding 40 g.
7, to prevent the invasion of pests and diseases. Due to the large number of introduction channels, some strawberry varieties are often identified by different synonyms, and they must be identified and avoided to be introduced repeatedly. For example: Dacekrit Century 1), Maria (Kart 1), Ghost Ngan (Japan 1), Zhang Ji (Japan 2), Ferguña (Dukla), Spring Star (Raspberry Number 3) etc.
8. Induced varieties should first undergo comparative tests in the local area, and then be expanded for multi-point production appraisal. The time should not be less than 3 years. When promotion value is confirmed, it will be further expanded and promoted.
In addition, to select the appropriate introduction time, it is best to introduce nearby, but also pay attention to lifting techniques, packaging and transportation should be careful and careful, since the seedlings should be planted as soon as possible.
In order to adapt to the changes in the market, the structure of the variety should be adjusted at any time. For example, the development of the strawberry processing industry in the local area can be done by selecting a variety of varieties suitable for processing, such as canned strawberry with sugar syrup, with dark red color, high hardness, uniform fruit, and less seeds. Small, rich flavor, easy to eliminate phlegm due to card, early red light, Eden and other varieties.
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