Spring Nutritional Growth Characteristics and Utilization Value of Different Mulberry Varieties Resources
[Objective]To provide reference for the utilization of spring nutritional growth products,especially mulberry leaves,and the selec-tion of mulberry planting varieties by analyzing the spring nutritional growth characteristics and utilization value of different mulberry varieties.[Method]Ten mulberry varieties were selected during the afforestation period to investigate their spring nutritional growth and development pe-riod,mulberry leaf characteristics and agronomic traits,branch growth,and mulberry leaf yield performance.[Result]In terms of the charac-teristic features of mulberry leaves,the leaf surface showed smooth or slightly rough,wrinkle free or shallow wavy characteristics,and the leaf surface and back were basically hairless.In the developmental period of spring nutritional growth,the germination time of 10 mulberry varieties is mainly early or extremely early,with a maximum difference of 23 days;the mature period of mulberry leaves is mainly early maturity,with a maximum difference of 13 days.In terms of bud proportion,the average pure leaf bud rate is 11.62%,with the highest being Guiyun 1,reaching 18.34%,and the lowest being Yueqian 1,only 7.25% .In terms of branch growth,the average weight of new shoots and stems is 1.20 kg/plant,with the highest being Guihuami,reaching 1.82 kg/plant,and the lowest being Heizhenzhu,only 0.78 kg/plant;the average total length of new shoots is 19.60 m/plant,with the highest being Guihuami at only 31.52 m/plant and the lowest being Yueqian No.1 at on-ly 14.65 m/plant.In terms of mulberry leaf production,the average leaf length is 117.67 g/m,with the highest being Guiyun 2,reaching 147.15 g/m,and the lowest being Guihuami,only 46.87 g/m;the average total leaf yield per plant is 2.48 kg/plant,with the highest being Wuzishida at 3.63 kg/plant and the lowest being Heizhenzhu at only 1.81 kg/plant.[Conclusion]All 10 mulberry varieties tested showed early germination and good agronomic traits,indicating that mulberry leaves are suitable for sericulture.Especially as leaves for small silkworms,it is beneficial for early feeding of spring silkworms and increasing the number of spring silkworm breeding batches.Under the premise of high mulberry yield,mulberry varieties with high leaf yield should be the focus of selection for mulberry planting,such as Wuzishida,Guiyun 1,Guiyun 2,etc.
万方数据
维普
