Variety selection should be based on local ecological conditions and species suitability. The number of varieties in the same orchard should not be excessive, generally 3 to 4 can be, small orchards 2 to 3 are also OK, of which 1 to 2 are the main cultivars, accounting for 70% to 80%, which can increase the product rate, or even The formation of local characteristics is conducive to sales. Conditions for selecting pollination varieties: 1. Flowering period meets. 2. The main cultivars can pollinate each other and have a high fruit setting rate. 3. Pollination varieties started as early as possible, they are easy to grow into flowers, and they have good productive performance and long economic life. 4. The proportion of pollinated varieties to the main cultivars should not be less than 20%. The main cultivars should have no pollen and should plant more than two pollination varieties. The pollination varieties and the planting of the main planting varieties are beneficial to the management of spraying and harvesting.
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