Analysis of Yield Related Traits of Different Brewing Sorghum Varieties in Arid Hilly Areas
In order to integrate the high quality and high efficiency cultivation technology of sorghum in the hilly area of Shanxi Province,the brewed sorghum varieties suitable for planting in the upland area were screened.12 sorghum varieties were selected for correlation analysis,and principal component analysis.The results showed that Jinliang 211 had the highest yield of 10 560.85 kg/ha,which was 8.35%higher than the control variety Gaoza 4.The second was Jinza 44(10 502.12 kg/ha),which was 7.74%higher than the control variety Gaoza 4.Jiza 225 ranked the third with 10 500.15 kg/ha of yield,which was 7.72%higher than the control variety Gaoza 4.The protein content of Jinza 44 was the highest(126.6 g/kg),the ether extract content(56.4 g/kg)and starch content(773.8 g/kg)of Gaoza 4 were the highest.The correlation analysis showed that the direct effects of main agronomic traits on yield were seed rate,panicle number,growth period,panicle length and plant height in descending order.By principal component analysis,7 yield-related indexes were divided into 3 principal component factors.The first principal component was related to fresh spike weight,yield and spike number.The second principal component was related to grain number per spike,seed yield and water content.The third principal component is related to thousand-grain weight.The comprehensive analysis shows that Jinza 51,Heliang 1,Jinza 44,Jiza 225,Jinliang 211 and Gaoza 4 are suitable for spreading planting in the dry hilly area of Shanxi Province.
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