Preliminary Report on the Introduction Experiment of New Varieties of Plateau Summer Vegetables in the Alpine Cold and Arid Area
Gansu is a major production area for plateau summer vegetables in China and an important export-oriented processing region.To select superior vegetable varieties suitable for planting in Tianzhu County,a major production area of plateau summer vegetables in Gansu's alpine cold and arid areas,this study aims to provide references for the selection of plateau summer vegetable varieties in the area.The introduction experiment observed the growth period,agronomic characters,and economic traits of 30 varieties of 5 categories of plateau summer vegetables,including lettuce,gongcai,cabbage,romaine lettuce and broccoli.The results showed that the lettuce variety Fusheng red king performed the best,with a short growth period,the lowest bolting rate of 7.00%,and the highest average yield at 71 250.0 kg/ha,which was 18.66%higher than that of the control variety Zilong,significantly.The gongcai variety Yunnan gongcai performed the best,with medium plant height,the smallest plant width,short and thick fleshy stems,no bolting,good commercial quality,and the highest yield of 123 211.5 kg/ha,7.80%higher than that of the control variety Northern gongcai,significantly.The cabbage variety Zhonggan 21 performed the best,with medium compactness,good commercial quality,and the highest yield of 91 815.0 kg/ha,which was 6.90%higher than that of the control variety Premium Zhonggan,significantly.The head lettuce variety Marina performed the best,with good commercial quality and the highest yield of 91 035.0 kg/ha,9.68%higher than that of the control variety Fushun head lettuce,significantly.The control variety Excellent cold resistance in broccoli showed the best performance,with tight flower balls,a high ball shape index,the heaviest individual flower ball weight,and a high yield of 67 650.0 kg/ha.Therefore,the lettuce variety Fusheng red king,the gongcai variety Yunnan gongcai,the cabbage variety Zhonggan 21,the head lettuce variety Marina,and the broccoli variety Excellent cold resistance are considered to have strong adaptability,high yield,and good commercial quality,making them suitable for promotion in Tianzhu County,the main production area of highland summer vegetables in Gansu's alpine cold and arid areas,and other main production areas of plateau summer vegetables in Gansu.
Plateau summer vegetableAlpine cold and arid regionNew varietyIntroductionYield
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