| Analysis of the correlation between agronomic traits and yield of various multiple\|cropping soybean varieties in northern Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2025.03.20 |
| Key Words: multiple cropping soybean agronomic trait dry matter accumulation yield grey correlation |
| Author Name | Affiliation | | CHEN Zhihua | College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | MA Rong | College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | LU Jingjing | College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | SUN Tingting | College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | ZHOU Liping | College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | JIANG Tao | College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | TANG Jianghua | College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | XU Wenxiu | College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China |
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| Abstract: |
| To address the increasing heat resources in northern Xinjiang, early\|maturing, high\|yielding multiple\|cropping soybean varieties suitable for the region were selected. The growth process, agronomic traits, dry matter accumulation, and yield relationships of 17 multiple\|cropping soybean varieties were examined using a single\|factor randomized block design, with ‘Heihe 45’ as the control variety. Grey correlation analysis was applied to analyze the data. The results showed that the growth period days of ‘Laidou 1’, ‘Hefeng 51’, ‘Hejiao 02-69’ and ‘Henong 114’ were 95～98 days, 13～16 days longer than the control variety. The plant height and the number of main stem nodes were significantly higher than those of the control varieties, increased by 18.52%～37.85% and 6.47%～17.80%, respectively. The average yield was 3 576.13 kg·hm-2, which was 3.83% higher than the control variety. The weight coefficient of agronomic traits and yield of each variety showed as follows: number of main stem nodes (0.1336)>plant height (0.1325)>100-seed weight (0.1313)>seeds per plant (0.1305)>pods per plant (0.1278)>stem diameter (0.1272)>bottom pod height (0.1116)>number of cavities (0.1065). The comprehensive ranking results by weighted correlation degree were: ‘Hejiao 02-69’>‘Laidou 1’>‘Henong 114’>‘Hefeng 51’>‘Henong 77’>‘Heihe 45’>‘Hedou 9’>‘Jiadou 30’. Based on the overall performance of each variety, ‘Laidou 1’, ‘Hefeng 51’, ‘Hejiao 02-69’, and ‘Henong 114’ can mature and achieve high yields before the early frost, making them suitable for planting in northern Xinjiang. |
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