The Influence Of Mainly Popularized Mulberry Varieties On The "liang Guang ?" Multiplication Of Parent Silkworm Eggs In Guangxi Autonomous Region

The development of advanced varieties of industry,agriculture in any kind of farming industry development is inseparable from the excellent seed resources.Sericulture silkworm cocoon silk industry as one of China's traditional industries,its inheritance and development is inseparable from the fine silkworm.Silkworm production in the original breeding of silkworm is the foundation and source.Affect the growth and development of silkworms in addition to temperature,humidity,airflow and light weather conditions,the most important is the mulberry leaf feed.The mulberry leaf nutrients are closely related to the mulberry varieties and the growth and development period of light,temperature,moisture and so on.The selection of suitable cocoon breeding mulberry varieties and mature period of high quality mulberry leaves help to improve the quality of breeding production.Based on the actual production of Guangxi silkworm original breeding,we carried out two experimental studies on the effects of five mulberry varieties currently being promoted in Guangxi on "LiangGuang ?" of the original breeding performance and the effects of Guisangyou 12 in different seasons on "LiangGuang ? " of the original breeding performance.The results showed that:(1)There was a certain degree of difference in the quality of original sowing between five mulberry varieties,but the whole did not reach the level of significant difference.Among them,the quality of original sowed by Guisangyou 12 was the best,No.1 breeding production of the original quality of the worst.(2)According to the results of survey and comparison of six batches of elite breeds produced at different times in spring and autumn,the quality of the original breed was the best in the third batch in May-June spring,One batch and late autumn October last batch of silkworm production breeding the worst quality.This study provides the basis for the actual breeding of Guangxi original species.According to the test results suggest Gui Sang You 12 can be widely used as excellent mulberry cultivars cultivated in Guangxi silkworm.At the same time,it is suggested that the mulberry leaves should be more and more in summer and autumn,Partial old late autumn less raised,the original breeding batch reasonable arrangement in the 4-9 months,help to improve the efficiency of breeding of original species and the quality of the original species,to achieve high production of high quality seed production at the same time to protect Guangxi silkworm industry Healthy and sustainable development.