Adaptability Screening And Evaluation Of Sugarbeet Varieties In Inner Mongolia

Sugar beet is an important economic crop,an important way to increase farmers’ income,and also an important raw material for sugar production.As the largest sugar beet planting base in China,Inner Mongolia has always been the highlight of sugar beet industry in China,and Hulunbuir region has become the highlight of sugar beet planting base in Inner Mongolia in recent years.In a certain sugar beet planting area,increasing the yield and sugar yield of sugar beet has become a breakthrough point of sugar beet planting.In the continuous development of sugar industry,the demand for sugar source supply is more and more urgent.It has become the only way to develop sugar beet planting industry in Hulunbeier area to select high-yield,high-yield sugar and promote planting application in a large area.Based on the analysis of a large number of field data,nutritional data and photosynthetic data,this paper studies the planting adaptability of 20 mainstream foreign commercial Sugarbeet Varieties in Hulunbuir region,gives a scientific evaluation,and puts forward a scientific basis for the strong adaptability of yield and quality of the dominant varieties,so as to promote the production,yield and sugar increase of Sugarbeet in Hulunbuir region by physiological selection and rational cultivation Provide theoretical basis and practical basis.The research results are as follows:1.Through the observation and measurement of the yield and quality of 20 varieties,it is found that the sugar content of the tested varieties is relatively stable in the planting areas of two different years and different test stations,while the tuber root yield is relatively variable.By analyzing the data of sugar content,tuber yield and sugar yield of Different Sugarbeet Varieties in two years,it is found that the sugar content of HI0479,MA097 and H809 is relatively high,while that of b BETA176,KUHN1357 and MA3005 is relatively low;the sugar content of HI1059,KWS2314 and KUHN8060 is relatively high,while that of SR411,RIVAL and KUHN1277 is relatively low;according to the comprehensive evaluation of 20 alternative varieties,KWS2314,HI1059 and ST14991 are the same Suitable varieties in the region.2.The growth of tuber roots of the varieties with higher yield in the whole growth period keeps a higher growth,while the growth of tuber roots with relatively low yield is mostly rapid in the early stage,but the growth of tuber roots in the later stage decreases significantly,or the growth speed in the early stage is slow,but the growth speed in the later stage gradually increases,but due to the influence of short growth period,the optimal yield cannot be achieved.3.The sugar content of varieties with high sugar content is not necessarily high at the early stage of growth,which shows that on the basis of a certain high sugar content,maintaining a sustained and strong growth rate of sugar content can ultimately obtain a higher sugar content of sugar beet.Some sugarbeet varieties begin to have a strong sugar content base,but the sugar growth rate is low.Some varieties have a high sugar content growth rate,but the seedling foundation is relatively weak,so they can not achieve the effect of high sugar.4.The sugarbeet varieties with erect foliage and small and medium-sized leaves are more suitable for planting in Hulunbuir alpine region.Under the premise of ensuring photosynthetic efficiency,erect leaf cluster,small and medium area leaves,higher photosynthetic utilization rate,less biomass consumption,which is conducive to the accumulation of more biomass to the root in the alpine region of short growth period.5.The contents of nitrogen,phosphorus and potassium in 20 sugarbeet varieties were determined.The results showed that there was a positive correlation between the nitrogen content and the yield of sugarbeet,that is to say,the yield of fast root was relatively higher in the lower nitrogen content of Sugarbeet.Through the nutrition control and the corresponding cultivation measures to reduce the nitrogen accumulation in the leaf cluster,it is more conducive to obtain the relatively high yield of sugar beet in the cold area.6.The photosynthetic rate,assimilation rate of carbon dioxide,intercellular carbon dioxide concentration and stomatal conductance of 20 sugarbeet varieties were measured.It was found that there was a positive correlation between the photosynthetic intensity and the photosynthetic performance of sugarbeet varieties.In other words,the stronger photosynthetic production rate,the higher carbon dioxide assimilation rate,the lower intercellular carbon dioxide concentration and the higher stomatal conductance have a linear correlation with the yield.