鲜食玉米-大豆带状复合种植模式下大豆品种筛选

    Screening of Soybean Varieties under the Fresh maize-soybean strip intercropping system

    • 摘要: 为筛选出鲜食玉米-大豆带状复合种植模式下的大豆适宜品种,以闽诚豆8号为对照,引进了12个大豆品种进行比较筛选,采用玉米和大豆的种植比例为2行玉米﹕3行大豆的种植模式,调查各品种的生育期、农艺性状及产量。结果表明:华夏26表现株高适中,单株结荚数和单株粒数最多,平均产量为1 677 kg·hm−2,比对照闽诚豆8号增产13.84%,增产达显著水平;华夏21、华夏14平均产量分别为1 569.3、1 503.9 kg·hm−2,比对照闽诚豆8号增产6.52%、2.09%,增产均未达显著水平;这3个品种均表现为株型收敛、抗倒伏。综合分析,华夏26、华夏21可在鲜食玉米-大豆带状复合种植模式下进一步扩大示范种植,华夏14可进一步扩大引种试验种植。

       

      Abstract: In order To screening suitable soybean varieties under the Fresh maize-soybean strip intercropping system(with a cropping arrangement of 2 rows of corn to 3 rows of soybean), twelve introduced soybean varieties were evaluated for their growth period, agronomic traits, and yield performance, using 'Minchengdou 8' as the control. The results showed that 'Huaxia 26' exhibited optimal overall performance, characterized by moderate plant height, the highest number of pods per plant and seeds per plant, and an average yield of 1677.0 kg·hm2, which was 13.84% higher than that of the control, with the increase reaching a statistically significant level. 'Huaxia 21' and 'Huaxia 14' ranked second and third, with average yields of 1569.3 kg·hm2 and 1503.9 kg·hm2, representing increases of 6.52% and 2.09% over the control, respectively, though the differences were not statistically significant. All three superior varieties exhibited compact plant architecture and good lodging resistance, while the remaining varieties showed yield reductions compared with the control. In conclusion, 'Huaxia 26' and 'Huaxia 21' are recommended for further demonstration and extension under the Fresh maize-soybean strip intercropping system, whereas 'Huaxia 14' merits continued introduction and pilot testing.

       

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