安龙县2024-2025年度油菜品种(系)筛选试验OA

To screen out high yield and high quality double-low rapeseed varieties(lines)suitable for the ecological and cultivation conditions of Anlong County,Guizhou Province,a screening experiment was conducted from 2024 to 2025.10 rapeseed varieties(lines)were selected,including Qianyou 787,Qianyou 177,Qianyou 178,Qianyou 182,Qianyou 1566,Qianyou 32(CK),Yangguang 80,Zhongyouza 633,Yangguang 668,and Qianyou 52.The growth period,economic traits,and yield of each tested variety were measured.The results showed that the growth periods of the 10 tested varieties(lines)ranged from 203 to 221 days,with all varieties(lines)except Zhongyouza 633 being suitable for timely harvesting;the plant height of each variety ranges from 109.0 to 235.8 cm.The highest number of effective pods per plant was observed in Qianyou 1566(352.2 pods),the highest average number of seeds per pod was observed in Qianyou 178(22.72 seeds),and the highest 1 000-grain weight was observed in Yangguang 668(4.63 g).In terms of yield,relatively high yields were recorded for Qianyou 1566(259.65 kg/667 m2),Qianyou 52(213.92 kg/667 m2),and Yangguang 668(206.53 kg/667 m2),which showed yield increases of 30.9%,7.8%,and 4.0%,respectively,compared to the CK.Good lodging resistance and disease resistance were observed in all varieties(lines).Based on a comprehensive evaluation,Qianyou 1566 and Qianyou 52 exhibit relatively good performance and are suitable for demonstration and promotion in the study area and regions with similar ecological conditions.