Evaluation of Forage Sweet Sorghum Production Performance in Western Hunan
This study aimed to identify sweet sorghum varieties suitable for expansion in Western Hunan,China.Seven sweet sorghum varieties were evaluated based on nine agronomic traits using grey relational analysis in 2020 and 2021.The results showed that Alto 902 exhibited the highest values for plant height,stem diameter,leaf number,leaf length,leaf width,leaf area,fresh weight per plant,fresh yield,and hay yield compared to the other six sweet sorghum varieties.Significant year-to-year variation was observed,with 2020 demonstrating higher values for average plant height,leaf length,leaf width,leaf area,fresh weight per plant,fresh yield,and hay yield.Conversely,stem diameter and leaf number dis-played the highest average in 2021.The interaction effect of varieties and year also revealed Alto 902's superior performance in all traits except stem diameter,which peaked in 2021.Based on the comprehensive evaluation,Alto 902 demonstrated the most favorable agronomic performance across both years.These findings suggest its suitability for wider cultivation in western Hunan.
Western HunanForage sweet sorghumProduction performanceAgronomic traits
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