Silkworm variety
2019-07-17 13:05:37
1, a variety of silkworm silkworm varieties because of different varieties, only one generation in a year to produce diapause eggs of a variety of silkworm varieties. This species develops slowly. After many days, the larvae have large mulberry mulberry cultivars, silkworm body and cocoon shape is also large, silk is the most, but the constitution is weak, not suitable for the climatic conditions of high temperature and humidity, and suitable for feeding in temperate regions. 2. The second-generation silkworm cultivars occurred in the second generation within one year, that is, the first-generation non-diapause eggs and the second-generation diapause larvae were called silkworm varieties. The larvae of this species are shorter than the one-off varieties, have a strong physique, are well-growth, and have only a slight amount of bismuth layer less than a single chemical species. The current varieties are mostly cultivars that have been improved after their secondary varieties have been introduced into the silkworms with excellent chemical properties, and are suitable for breeding in the warm areas and in summer and autumn. 3. Multivariate silkworm cultivars occur more than three generations within one year, commonly known as multiplexed silkworm cultivars, and some of the last generation of diapause eggs, some of which still produce non-diapause eggs, the former have diapause polymorphism. Silkworm varieties, the latter said no diapause silkworm varieties. This species develops rapidly and the larval period is extremely short. Very strong constitution, small pod shape, small amount of silk, fine silk fineness, little fine fiber separation, slightly inferior silk quality.
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