Comprehensive Evaluation of the New Maize Varieties Introduced in Hilly and Gully Areas on the Loess Plateau
This study evaluated the stability and productivity of different maize varieties in the hilly and gully areas on the Loess Plateau to provide a scientific basis for the selection and promotion of new maize varieties in the area.10 introduced maize varieties were tested for agronomic traits,yield,and yield characteristics.The results showed that Qiangsheng 399,Yidai 131,and Jinsui 1915 had high average yields of 11 850.1,11 605.0,and 11 411.9 kg/ha,respectively,representing increases of 14.54%,12.17%,and 10.30%over the control variety Jinsui 702.On the other hand,Bingdan 39,Fengtian 101,and Dunyu 9 had lower yields,showing decreases of 3.76%,10.86%,and 30.76%compared to that of Jinsui 702.Comprehensive evaluation combined with yield data showed that Qiangsheng 399,Jinsui 306,Yidan 131,and Jinsui 702 exhibited excellent productivity and stability,along with high static stability,superior quality,and strong ecological adaptability,making them suitable for cultivation in the hilly and gully areas on the Loess Plateau.They are recommended for promotion.Jinsui 1915,FT806,and Qiangsheng 388 received middle evaluation remarks and are recommended for continued observation.Dunyu 9,Fengtian 101,and Bingdan 39 were rated poorly and are recommended for elimination.
MaizeNew varietyIntroduction and comparisonGrowth periodPlant traitYield traitComprehensive evalua-tion indexHilly and gully area on the Loess Plateau
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