13份黑龙江大豆品种在北疆地区的适应性及高产特征分析OA

[Objective]Study was carried out to screen out high-yielding double-cropping soybean varieties suitable for cultivation in Northern Xinjiang and clarify their high-yield growth characteristics.[Methods]This experiment was conducted in 2023 and 2024,using 13 double-cropping soybean varieties as test materials.The differences in growth period,agronomic traits,flower and pod parameters,and yield among different varieties were compared in the field.[Results]The results showed that the growth period of the tested varieties ranged from 87 to 102 days,all of which could mature normally.There were significant differences in yield among different varieties(lines)in different years,with yields ranging from 2 235.6 to 3 226.02 kg·hm-2.The yields of HN151 and JD30 were the highest in both years.In 2023 and 2024,the plant heights of soybeans were 42.6 to 86.58 cm and 53.0 to 72.8 cm,respectively;the bottom pod heights were 6.37 to 17.2 cm and 7.56 to 14.0 cm,respectively;the stem diameters were 3.21 to 5.54 mm and 2.28 to 4.96 mm,respectively;the effective pod numbers per plant were 9.82 to 27.2 and 9.6 to 22.4,respectively;the seed numbers per plant were 25.4 to 86.0 and 21.4 to 52.4,respectively;and the 100-seed weights were 16.2 to 20.96 g and 15.62 to 20.82 g,respectively.[Conclusion]Comprehensive analysis indicated that HN151 is suitable for large-scale cultivation in Northern Xinjiang,with a yield over 3 000 kg·hm-2.A higher number of flowers,pods,and seeds per unit area is the key to achieving high yields of soybeans in Northern Xinjiang.