宁夏引黄灌区10份酿造高粱适应性综合评价OA

To screen out suitable sorghum varieties for cultivation in the Yellow River irrigation area of Ningxia,10 sorghum varieties were used as experimental materials,and a variety screening test was conducted in 2023.The growth traits and yield of the tested varieties were measured,and a comprehensive evaluation was conducted using correlation analysis and principal component analysis.The results showed that the growth period of the 10 sorghum varieties ranged from 111 to 131 days,'Jinza 113'had the largest stem diameter and panicle length.The grain weight per spike of'Jinza 112','Jinza 113'and'Fenliang 30'was significantly higher than that of other varieties.The grain yields of different varieties ranged from 2 598.00 to 8 437.95 kg·hm-2.Correlation analysis showed that the grain weight per spike of sorghum was significantly positively correlated with stem diameter and spike length,the 1000-grain weight was significantly positively correlated with plant height,the yield was significantly positively correlated with stem diameter,and was extremely significantly positively correlated with the grain weight per spike.Principal component analysis concentrated seven agronomic and economic trait indicators in the first two principal components,with a cumulative contribution rate reaching 84.16%.Comprehensive evaluation indicated that the sorghum varieties'Jinza 111','Jinza 112'and'Fenliang 30'had relatively high scores and were suitable for promotion and cultivation in the Yellow River irrigation areas of Ningxia.