Rice Science ›› 2025, Vol. 32 ›› Issue (4): 512-524.DOI: 10.1016/j.rsci.2025.02.003
• Research Papers • Previous Articles Next Articles
Li Xinyan1,2, Weng Lüshui1, Xiao Youlun3, Li Jinjiang1, Deng Lihua1, Liu Qing1, Kang Weiwei1, Duan Yaping1, Yang Daji1, Xiao Guoying1,4(
)
Received:2024-12-01
Accepted:2025-02-15
Online:2025-07-28
Published:2025-08-06
Contact:
Xiao Guoying
Li Xinyan, Weng Lüshui, Xiao Youlun, Li Jinjiang, Deng Lihua, Liu Qing, Kang Weiwei, Duan Yaping, Yang Daji, Xiao Guoying. Characteristic Analysis of Penta-Resistance Restorer Line for Hybrid Rice[J]. Rice Science, 2025, 32(4): 512-524.
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Fig. 1. PCR detection of resistance genes in B2A1920 and its hybrids. A‒F, PCR of Bar (A), Cry2Aa (B), Xa23 (C), Pi2 (D), Bph14 (E), and Bph15 (F) genes in B2A1920 and its hybrids. M, DL2000 DNA Marker; Lanes 1‒21, B2A68, B2A1920, R43-02, Gui A, Gui A × B2A1920, Gui A × R43-02, Quan 9311A, Quan 9311A × B2A1920, Quan 9311A × R43-02, Yexiang A, Yexiang A × B2A1920, Yexiang A × R43-02, Xianglong A, Xianglong A × B2A1920, Xianglong A × R43-02, Tiantai A, Tiantai A × B2A1920, Tiantai A × R43-02, Shen 9A, Shen 9A × B2A1920, and Shen 9A × R43-02, respectively. ‘±’, ‘+’, and ‘-’ in F represent heterozygous control (23F201), positive, and negative bands, respectively.
Fig. 2. Plant height of rice at the seedling stage after spraying glufosinate for four weeks. A‒H, Plant height of B2A68 and D68 (A), B2A1920 and R43-02 (B), Gui A × B2A1920 and Gui A × R43-02 (C), Quan 9311A × B2A1920 and Quan 9311A × R43-02 (D), Yexiang A × B2A1920 and Yexiang A × R43-02 (E), Xianglong A × B2A1920 and Xianglong A × R43-02 (F), Tiantai A × B2A1920 and Tiantai A × R43-02 (G), and Shen 9A × B2A1920 and Shen 9A × R43-02 (H) after spraying glufosinate for four weeks. 1×, Plants treated with the median recommended dose (MRD, 600 g/hm2) glufosinate; 2×, Plants treated with 2-fold MRD (1 200 g/hm2) glufosinate; 4×, Plants treated with 4-fold MRD (2 400 g/hm2) glufosinate. Data are presented as mean ± SD (n = 5) and processed by two-way analysis of variance, with the following significant probabilities: *, P < 0.05; **, P < 0.01; ***, P < 0.001; and ****, P < 0.0001.
Fig. 3. Corrected mortality of rice leaf roller fed on leaves of B2A1920 and its hybrids. Data are represented as mean ± SD (n = 3) and processed by one-way analysis of variance with the following significance probabilities: ****, P < 0.0001.
Fig. 4. Resistances of B2A1920 and its hybrids to bacterial blight. FuJ and YN24 are strains of Xanthomonas oryzae pv. oryzae. Tianyouhuazhan was used as a susceptible control.
| Rice material | Strain of Magnaporthe oryzae | |||
|---|---|---|---|---|
| 23TJ43- 1-6 | 23WN46- 3-5 | 23FH34- 3-2 | 23TJ34- 1-33 | |
| Lijiangxintuanheigu (CK) | S | S | S | S |
| Tetep (CK) | R | R | R | R |
| B2A1920 | R | R | R | R |
| R43-02 | R | R | R | R |
| Gui A | S | S | S | S |
| Gui A × B2A1920 | R | R | R | R |
| Gui A × R43-02 | R | R | R | R |
| Quan 9311A | S | R | S | S |
| Quan 9311A × B2A1920 | R | R | R | R |
| Quan 9311A × R43-02 | R | R | R | R |
| Yexiang A | R | R | R | R |
| Yexiang A × B2A1920 | R | R | R | R |
| Yexiang A × R43-02 | R | R | R | R |
| Xianglong A | S | S | S | S |
| Xianglong A × B2A1920 | S | R | R | R |
| Xianglong A × R43-02 | R | R | R | R |
| Tiantai A | R | R | R | R |
| Tiantai A × B2A1920 | R | R | R | R |
| Tiantai A × R43-02 | R | R | R | R |
| Shen 9A | R | R | R | R |
| Shen 9A × B2A1920 | R | R | R | R |
| Shen 9A × R43-02 | R | R | R | R |
Table 1. Infection response to four strains of blast fungus.
| Rice material | Strain of Magnaporthe oryzae | |||
|---|---|---|---|---|
| 23TJ43- 1-6 | 23WN46- 3-5 | 23FH34- 3-2 | 23TJ34- 1-33 | |
| Lijiangxintuanheigu (CK) | S | S | S | S |
| Tetep (CK) | R | R | R | R |
| B2A1920 | R | R | R | R |
| R43-02 | R | R | R | R |
| Gui A | S | S | S | S |
| Gui A × B2A1920 | R | R | R | R |
| Gui A × R43-02 | R | R | R | R |
| Quan 9311A | S | R | S | S |
| Quan 9311A × B2A1920 | R | R | R | R |
| Quan 9311A × R43-02 | R | R | R | R |
| Yexiang A | R | R | R | R |
| Yexiang A × B2A1920 | R | R | R | R |
| Yexiang A × R43-02 | R | R | R | R |
| Xianglong A | S | S | S | S |
| Xianglong A × B2A1920 | S | R | R | R |
| Xianglong A × R43-02 | R | R | R | R |
| Tiantai A | R | R | R | R |
| Tiantai A × B2A1920 | R | R | R | R |
| Tiantai A × R43-02 | R | R | R | R |
| Shen 9A | R | R | R | R |
| Shen 9A × B2A1920 | R | R | R | R |
| Shen 9A × R43-02 | R | R | R | R |
| Rice material | Resistance score | Resistance level |
|---|---|---|
| TN1 (CK) | 9.0 ± 0.0 | HS |
| R43-02 | 0.0 ± 0.0 | I |
| B2A1920 | 0.0 ± 0.0 | I |
| B2A68 | 9.0 ± 0.0 | HS |
| Gui A | 7.8 ± 0.3 | S |
| Gui A × R43-02 | 0.4 ± 0.1 | HR |
| Gui A × B2A1920 | 0.0 ± 0.0 | I |
| Quan 9311A | 9.0 ± 0.0 | HS |
| Quan 9311A × R43-02 | 0.5 ± 0.0 | HR |
| Quan 9311A × B2A1920 | 0.3 ± 0.1 | HR |
| Yexiang A | 2.6 ± 0.3 | R |
| Yexiang A × R43-02 | 2.2 ± 0.4 | R |
| Yexiang A × B2A1920 | 0.8 ± 0.1 | HR |
| Xianglong A | 9.0 ± 0.0 | HS |
| Xianglong A × R43-02 | 0.3 ± 0.0 | HR |
| Xianglong A × B2A1920 | 0.1 ± 0.0 | HR |
| Tiantai A | 9.0 ± 0.0 | HS |
| Tiantai A × R43-02 | 0.0 ± 0.0 | I |
| Tiantai A × B2A1920 | 1.7 ± 0.1 | HR |
| Shen 9A | 2.8 ± 0.0 | R |
| Shen 9A × R43-02 | 0.1 ± 0.0 | HR |
| Shen 9A × B2A1920 | 0.0 ± 0.0 | I |
Table 2. Brown planthopper (BPH) resistance scores and levels.
| Rice material | Resistance score | Resistance level |
|---|---|---|
| TN1 (CK) | 9.0 ± 0.0 | HS |
| R43-02 | 0.0 ± 0.0 | I |
| B2A1920 | 0.0 ± 0.0 | I |
| B2A68 | 9.0 ± 0.0 | HS |
| Gui A | 7.8 ± 0.3 | S |
| Gui A × R43-02 | 0.4 ± 0.1 | HR |
| Gui A × B2A1920 | 0.0 ± 0.0 | I |
| Quan 9311A | 9.0 ± 0.0 | HS |
| Quan 9311A × R43-02 | 0.5 ± 0.0 | HR |
| Quan 9311A × B2A1920 | 0.3 ± 0.1 | HR |
| Yexiang A | 2.6 ± 0.3 | R |
| Yexiang A × R43-02 | 2.2 ± 0.4 | R |
| Yexiang A × B2A1920 | 0.8 ± 0.1 | HR |
| Xianglong A | 9.0 ± 0.0 | HS |
| Xianglong A × R43-02 | 0.3 ± 0.0 | HR |
| Xianglong A × B2A1920 | 0.1 ± 0.0 | HR |
| Tiantai A | 9.0 ± 0.0 | HS |
| Tiantai A × R43-02 | 0.0 ± 0.0 | I |
| Tiantai A × B2A1920 | 1.7 ± 0.1 | HR |
| Shen 9A | 2.8 ± 0.0 | R |
| Shen 9A × R43-02 | 0.1 ± 0.0 | HR |
| Shen 9A × B2A1920 | 0.0 ± 0.0 | I |
Fig. 5. Agronomic traits of B2A1920 and R43-02. A‒G, Plant height (A), panicle length (B), number of tillers per plant (C), number of spikelets per plant (D), seed-setting rate (E), 1000-grain weight (F), and yield per plant (G) of rice lines B2A1920 and R43-02 grown at Changsha, Hunan Province, China. H‒N, Plant height (H), panicle length (I), number of tillers per plant (J), number of spikelets per plant (K), seed-setting rate (L), 1000-grain weight (M), and yield per plant (N) of rice lines B2A1920 and R43-02 grown at Lingshui, Hainan Province, China. Data are represented as mean ± SD (n = 9) and processed by two-way analysis of variance with the following significant probabilities: *, P < 0.05; **, P < 0.01; ***, P < 0.001; and ****, P < 0.0001.
Fig. 6. Agronomic traits of B2A1920 and R43-02 hybrids. A‒E, Number of tillers per plant (A), number of spikelets per plant (B), seed-setting rate (C), 1000-grain weight (D), and yield per plant (E) of B2A1920 and R43-02 hybrids grown at Changsha, Hunan Province, China. F‒J, Number of tillers per plant (F), number of spikelets per plant (G), seed-setting rate (H), 1000-grain weight (I), and yield per plant (J) B2A1920 and R43-02 hybrids grown at Lingshui, Hainan Province, China. CM, Conventional management; IFM, Insecticide-free management. Data are represented as mean ± SD (n = 54) and processed by two-way analysis of variance with the following significant probabilities: *, P < 0.05; and ***, P < 0.001.
| Treatment | Hybrid | Growth duration (d) | No. of spikelets per plant | Seed-setting rate (%) | 1000-grain weight (g) | Yield per plant (g) | Daily yield (kg/hm2) |
|---|---|---|---|---|---|---|---|
| Changsha, Hunan Province, China | |||||||
| CMa | Yueyou 9113 (CK) | 111 | 2 009.0 ± 242.5 a | 69.26 ± 1.07 ab | 23.00 ± 0.18 b | 32.19 ± 4.46 a | 65.25 ± 9.04 a |
| Gui A × B2A1920 | 111 | 2 010.3 ± 95.4 a | 74.46 ± 1.28 a | 20.36 ± 1.20 c | 30.68 ± 2.69 a | 62.19 ± 5.45 a | |
| Gui A × R43-02 | 111 | 2 039.4 ± 193.0 a | 68.44 ± 2.54 ab | 20.27 ± 0.29 c | 28.20 ± 3.04 a | 57.16 ± 6.16 a | |
| Xianglong A × R43-02 | 112 | 1 708.8 ± 27.9 a | 64.17 ± 4.78 b | 25.36 ± 0.25 a | 27.48 ± 2.18 a | 55.21 ± 4.37 a | |
| IFMa | Yueyou 9113 (CK) | 111 | 1 891.0 ± 252.5 ab | 68.06 ± 1.20 a | 23.96 ± 0.18 ab | 30.74 ± 3.92 a | 62.31 ± 7.95 a |
| Gui A × B2A1920 | 111 | 2 730.8 ± 485.2 a | 74.84 ± 0.62 a | 20.44 ± 1.41 b | 41.74 ± 6.13 a | 84.60 ± 12.42 a | |
| Gui A × R43-02 | 111 | 2 041.6 ± 365.7 ab | 69.05 ± 3.27 a | 21.11 ± 2.08 b | 29.46 ± 5.01 a | 59.72 ± 10.15 a | |
| Xianglong A × R43-02 | 112 | 1 613.7 ± 225.4 b | 67.05 ± 6.82 a | 28.24 ± 2.33 a | 30.59 ± 3.87 a | 61.45 ± 7.78 a | |
| CMb | Tianyouhuazhan (CK) | 114 | 1 997.8 ± 219.7 a | 69.43 ± 1.79 abc | 21.16 ± 0.13 d | 29.31 ± 2.65 a | 57.84 ± 5.22 ab |
| Quan 9311A × B2A1920 | 116 | 1 738.3 ± 176.0 a | 67.72 ± 4.26 abc | 27.99 ± 1.91 a | 33.68 ± 6.17 a | 65.33 ± 11.96 ab | |
| Quan 9311A × R43-02 | 118 | 1 708.6 ± 345.0 a | 65.13 ± 3.95 bc | 23.68 ± 0.85 bcd | 26.38 ± 6.29 a | 50.30 ± 11.99 ab | |
| Yexiang A × B2A1920 | 113 | 1 781.1 ± 321.1 a | 77.09 ± 3.33 a | 23.01 ± 0.45 bcd | 31.77 ± 6.63 a | 63.25 ± 13.20 ab | |
| Yexiang A × R43-02 | 120 | 2 093.0 ± 72.1 a | 72.81 ± 1.03 ab | 21.96 ± 0.71 cd | 33.56 ± 0.74 a | 62.92 ± 1.39 ab | |
| Tiantai A × B2A1920 | 116 | 1 552.1 ± 41.3 a | 66.44 ± 3.21 abc | 25.28 ± 0.78 abc | 26.19 ± 2.51 a | 50.80 ± 4.87 ab | |
| Tiantai A × R43-02 | 122 | 1 536.2 ± 61.1 a | 60.53 ± 3.10 c | 25.24 ± 0.59 abc | 23.18 ± 2.99 a | 42.75 ± 5.51 b | |
| Shen 9A × B2A1920 | 116 | 1 647.6 ± 321.8 a | 70.07 ± 4.83 abc | 22.57 ± 1.14 bcd | 25.82 ± 5.17 a | 50.09 ± 10.03 ab | |
| Shen 9A × R43-02 | 118 | 2 201.3 ± 253.9 a | 69.49 ± 3.60 abc | 22.71 ± 1.50 bcd | 34.62 ± 3.98 a | 66.02 ± 7.59 ab | |
| Xianglong A × B2A1920 | 114 | 1 475.3 ± 88.8 a | 70.09 ± 2.11 abc | 25.78 ± 0.42 ab | 38.62 ± 2.44 a | 76.23 ± 4.81 a | |
| IFMb | Tianyouhuazhan (CK) | 114 | 1 896.9 ± 114.6 a | 65.76 ± 4.74 c | 22.16 ± 0.61c | 27.47 ± 2.75 a | 54.21 ± 5.43 a |
| Quan 9311A × B2A1920 | 116 | 1 959.7 ± 164.3 a | 78.10 ± 0.82 ab | 26.70 ± 1.54 abc | 40.91 ± 5.06 a | 79.36 ± 9.81 a | |
| Quan 9311A × R43-02 | 118 | 1 797.8 ± 208.0 a | 72.84 ± 1.35 bc | 27.61 ± 2.02 abc | 35.92 ± 3.03 a | 68.49 ± 5.78 a | |
| Yexiang A × B2A1920 | 113 | 2 107.8 ± 371.9 a | 83.83 ± 2.65 a | 22.56 ± 2.21 bc | 39.67 ± 7.08 a | 79.00 ± 14.10 a | |
| Yexiang A × R43-02 | 120 | 2 027.0 ± 341.4 a | 71.93 ± 2.21 bc | 22.66 ± 2.56 bc | 32.80 ± 3.84 a | 61.51 ± 7.20 a | |
| Tiantai A × B2A1920 | 116 | 1 773.6 ± 345.2 a | 72.51 ± 1.09 bc | 28.26 ± 1.11 a | 36.14 ± 5.51 a | 70.10 ± 10.69 a | |
| Tiantai A × R43-02 | 122 | 1 664.0 ± 202.3 a | 70.28 ± 2.84 bc | 26.43 ± 1.46 abc | 31.09 ± 4.00 a | 57.33 ± 7.37 a | |
| Shen 9A × B2A1920 | 116 | 2 202.6 ± 447.1 a | 77.08 ± 3.04 ab | 23.84 ± 1.41 abc | 40.20 ± 7.70 a | 77.97 ± 14.94 a | |
| Shen 9A × R43-02 | 118 | 1 884.1 ± 148.3 a | 72.08 ± 2.26 bc | 23.62 ± 0.55 abc | 32.40 ± 2.37 a | 61.78 ± 4.51 a | |
| Xianglong A × B2A1920 | 114 | 2 096.4 ± 272.0 a | 72.31 ± 3.81 bc | 27.73 ± 0.75 ab | 41.84 ± 3.79 a | 82.58 ± 7.47 a | |
| Lingshui, Hainan Province, China | |||||||
| IFMb | Tianyouhuazhan (CK) | 115 | 1 491.9 ± 225.6 a | 77.56 ± 1.01 a | 28.65 ± 0.44 ab | 33.03 ± 5.88 ab | 64.62 ± 11.50 ab |
| Yexiang A × R43-02 | 124 | 1 191.2 ± 78.6 a | 78.11 ± 3.78 a | 30.41 ± 1.72 ab | 28.12 ± 0.75 b | 51.02 ± 1.35 bc | |
| Yexiang A × B2A1920 | 125 | 1 257.6 ± 132.9 a | 78.33 ± 0.57 a | 29.59 ± 3.45 ab | 28.57 ± 0.60 b | 51.43 ± 1.09 bc | |
| Xianglong A × B2A1920 | 121 | 1 518.1 ± 121.2 a | 79.73 ± 1.26 a | 33.97 ± 1.94 a | 40.72 ± 1.94 a | 75.73 ± 3.61 a | |
| Xianglong A × R43-02 | 119 | 976.1 ± 92.3 a | 77.63 ± 1.47 a | 33.56 ± 1.67 a | 25.02 ± 1.79 b | 47.30 ± 3.39 bc | |
| Tiantai A × B2A1920 | 114 | 1 175.6 ± 75.4 a | 70.50 ± 5.42 a | 28.40 ± 0.75 ab | 23.23 ± 1.94 b | 45.85 ± 3.83 bc | |
| Tiantai A × R43-02 | 113 | 1 262.4 ± 121.2 a | 76.84 ± 1.86 a | 31.16 ± 0.95 ab | 29.61 ± 2.91 b | 58.96 ± 5.79 abc | |
| Shen 9A × B2A1920 | 126 | 1 371.2 ± 69.1 a | 80.74 ± 6.41 a | 26.65 ± 2.05 b | 29.20 ± 3.82 b | 52.14 ± 6.83 bc | |
| Shen 9A × R43-02 | 124 | 1 233.0 ± 83.6 a | 71.54 ± 1.42 a | 28.61 ± 1.61 ab | 24.85 ± 1.10 b | 45.09 ± 1.99 c | |
| Gui A × R43-02 | 115 | 1 320.8 ± 62.7 a | 73.24 ± 3.28 a | 29.20 ± 2.40 ab | 27.88 ± 3.02 b | 54.55 ± 5.90 bc | |
| IFMc | Fengliangyou 4 (CK) | 140 | 1 270.4 ± 145.5 a | 70.83 ± 4.49 a | 29.57 ± 1.18 ab | 25.97 ± 3.06 a | 41.74 ± 4.92 a |
| Quan 9311A × B2A1920 | 130 | 1 193.7 ± 95.7 a | 64.53 ± 2.89 a | 30.71 ± 2.57 a | 23.29 ± 1.09 a | 40.30 ± 1.88 a | |
| Quan 9311A × R43-02 | 129 | 1 290.6 ± 55.4 a | 73.42 ± 6.80 a | 28.41 ± 0.63 ab | 26.63 ± 1.06 a | 46.45 ± 1.85 a | |
| Gui A × B2A1920 | 131 | 1 421.9 ± 87.2 a | 75.73 ± 4.62 a | 24.27 ± 2.06 b | 25.52 ± 0.93 a | 43.83 ± 1.60 a | |
Table 3. Comparison of yield-related traits between hybrid rice and checks with similar growth duration.
| Treatment | Hybrid | Growth duration (d) | No. of spikelets per plant | Seed-setting rate (%) | 1000-grain weight (g) | Yield per plant (g) | Daily yield (kg/hm2) |
|---|---|---|---|---|---|---|---|
| Changsha, Hunan Province, China | |||||||
| CMa | Yueyou 9113 (CK) | 111 | 2 009.0 ± 242.5 a | 69.26 ± 1.07 ab | 23.00 ± 0.18 b | 32.19 ± 4.46 a | 65.25 ± 9.04 a |
| Gui A × B2A1920 | 111 | 2 010.3 ± 95.4 a | 74.46 ± 1.28 a | 20.36 ± 1.20 c | 30.68 ± 2.69 a | 62.19 ± 5.45 a | |
| Gui A × R43-02 | 111 | 2 039.4 ± 193.0 a | 68.44 ± 2.54 ab | 20.27 ± 0.29 c | 28.20 ± 3.04 a | 57.16 ± 6.16 a | |
| Xianglong A × R43-02 | 112 | 1 708.8 ± 27.9 a | 64.17 ± 4.78 b | 25.36 ± 0.25 a | 27.48 ± 2.18 a | 55.21 ± 4.37 a | |
| IFMa | Yueyou 9113 (CK) | 111 | 1 891.0 ± 252.5 ab | 68.06 ± 1.20 a | 23.96 ± 0.18 ab | 30.74 ± 3.92 a | 62.31 ± 7.95 a |
| Gui A × B2A1920 | 111 | 2 730.8 ± 485.2 a | 74.84 ± 0.62 a | 20.44 ± 1.41 b | 41.74 ± 6.13 a | 84.60 ± 12.42 a | |
| Gui A × R43-02 | 111 | 2 041.6 ± 365.7 ab | 69.05 ± 3.27 a | 21.11 ± 2.08 b | 29.46 ± 5.01 a | 59.72 ± 10.15 a | |
| Xianglong A × R43-02 | 112 | 1 613.7 ± 225.4 b | 67.05 ± 6.82 a | 28.24 ± 2.33 a | 30.59 ± 3.87 a | 61.45 ± 7.78 a | |
| CMb | Tianyouhuazhan (CK) | 114 | 1 997.8 ± 219.7 a | 69.43 ± 1.79 abc | 21.16 ± 0.13 d | 29.31 ± 2.65 a | 57.84 ± 5.22 ab |
| Quan 9311A × B2A1920 | 116 | 1 738.3 ± 176.0 a | 67.72 ± 4.26 abc | 27.99 ± 1.91 a | 33.68 ± 6.17 a | 65.33 ± 11.96 ab | |
| Quan 9311A × R43-02 | 118 | 1 708.6 ± 345.0 a | 65.13 ± 3.95 bc | 23.68 ± 0.85 bcd | 26.38 ± 6.29 a | 50.30 ± 11.99 ab | |
| Yexiang A × B2A1920 | 113 | 1 781.1 ± 321.1 a | 77.09 ± 3.33 a | 23.01 ± 0.45 bcd | 31.77 ± 6.63 a | 63.25 ± 13.20 ab | |
| Yexiang A × R43-02 | 120 | 2 093.0 ± 72.1 a | 72.81 ± 1.03 ab | 21.96 ± 0.71 cd | 33.56 ± 0.74 a | 62.92 ± 1.39 ab | |
| Tiantai A × B2A1920 | 116 | 1 552.1 ± 41.3 a | 66.44 ± 3.21 abc | 25.28 ± 0.78 abc | 26.19 ± 2.51 a | 50.80 ± 4.87 ab | |
| Tiantai A × R43-02 | 122 | 1 536.2 ± 61.1 a | 60.53 ± 3.10 c | 25.24 ± 0.59 abc | 23.18 ± 2.99 a | 42.75 ± 5.51 b | |
| Shen 9A × B2A1920 | 116 | 1 647.6 ± 321.8 a | 70.07 ± 4.83 abc | 22.57 ± 1.14 bcd | 25.82 ± 5.17 a | 50.09 ± 10.03 ab | |
| Shen 9A × R43-02 | 118 | 2 201.3 ± 253.9 a | 69.49 ± 3.60 abc | 22.71 ± 1.50 bcd | 34.62 ± 3.98 a | 66.02 ± 7.59 ab | |
| Xianglong A × B2A1920 | 114 | 1 475.3 ± 88.8 a | 70.09 ± 2.11 abc | 25.78 ± 0.42 ab | 38.62 ± 2.44 a | 76.23 ± 4.81 a | |
| IFMb | Tianyouhuazhan (CK) | 114 | 1 896.9 ± 114.6 a | 65.76 ± 4.74 c | 22.16 ± 0.61c | 27.47 ± 2.75 a | 54.21 ± 5.43 a |
| Quan 9311A × B2A1920 | 116 | 1 959.7 ± 164.3 a | 78.10 ± 0.82 ab | 26.70 ± 1.54 abc | 40.91 ± 5.06 a | 79.36 ± 9.81 a | |
| Quan 9311A × R43-02 | 118 | 1 797.8 ± 208.0 a | 72.84 ± 1.35 bc | 27.61 ± 2.02 abc | 35.92 ± 3.03 a | 68.49 ± 5.78 a | |
| Yexiang A × B2A1920 | 113 | 2 107.8 ± 371.9 a | 83.83 ± 2.65 a | 22.56 ± 2.21 bc | 39.67 ± 7.08 a | 79.00 ± 14.10 a | |
| Yexiang A × R43-02 | 120 | 2 027.0 ± 341.4 a | 71.93 ± 2.21 bc | 22.66 ± 2.56 bc | 32.80 ± 3.84 a | 61.51 ± 7.20 a | |
| Tiantai A × B2A1920 | 116 | 1 773.6 ± 345.2 a | 72.51 ± 1.09 bc | 28.26 ± 1.11 a | 36.14 ± 5.51 a | 70.10 ± 10.69 a | |
| Tiantai A × R43-02 | 122 | 1 664.0 ± 202.3 a | 70.28 ± 2.84 bc | 26.43 ± 1.46 abc | 31.09 ± 4.00 a | 57.33 ± 7.37 a | |
| Shen 9A × B2A1920 | 116 | 2 202.6 ± 447.1 a | 77.08 ± 3.04 ab | 23.84 ± 1.41 abc | 40.20 ± 7.70 a | 77.97 ± 14.94 a | |
| Shen 9A × R43-02 | 118 | 1 884.1 ± 148.3 a | 72.08 ± 2.26 bc | 23.62 ± 0.55 abc | 32.40 ± 2.37 a | 61.78 ± 4.51 a | |
| Xianglong A × B2A1920 | 114 | 2 096.4 ± 272.0 a | 72.31 ± 3.81 bc | 27.73 ± 0.75 ab | 41.84 ± 3.79 a | 82.58 ± 7.47 a | |
| Lingshui, Hainan Province, China | |||||||
| IFMb | Tianyouhuazhan (CK) | 115 | 1 491.9 ± 225.6 a | 77.56 ± 1.01 a | 28.65 ± 0.44 ab | 33.03 ± 5.88 ab | 64.62 ± 11.50 ab |
| Yexiang A × R43-02 | 124 | 1 191.2 ± 78.6 a | 78.11 ± 3.78 a | 30.41 ± 1.72 ab | 28.12 ± 0.75 b | 51.02 ± 1.35 bc | |
| Yexiang A × B2A1920 | 125 | 1 257.6 ± 132.9 a | 78.33 ± 0.57 a | 29.59 ± 3.45 ab | 28.57 ± 0.60 b | 51.43 ± 1.09 bc | |
| Xianglong A × B2A1920 | 121 | 1 518.1 ± 121.2 a | 79.73 ± 1.26 a | 33.97 ± 1.94 a | 40.72 ± 1.94 a | 75.73 ± 3.61 a | |
| Xianglong A × R43-02 | 119 | 976.1 ± 92.3 a | 77.63 ± 1.47 a | 33.56 ± 1.67 a | 25.02 ± 1.79 b | 47.30 ± 3.39 bc | |
| Tiantai A × B2A1920 | 114 | 1 175.6 ± 75.4 a | 70.50 ± 5.42 a | 28.40 ± 0.75 ab | 23.23 ± 1.94 b | 45.85 ± 3.83 bc | |
| Tiantai A × R43-02 | 113 | 1 262.4 ± 121.2 a | 76.84 ± 1.86 a | 31.16 ± 0.95 ab | 29.61 ± 2.91 b | 58.96 ± 5.79 abc | |
| Shen 9A × B2A1920 | 126 | 1 371.2 ± 69.1 a | 80.74 ± 6.41 a | 26.65 ± 2.05 b | 29.20 ± 3.82 b | 52.14 ± 6.83 bc | |
| Shen 9A × R43-02 | 124 | 1 233.0 ± 83.6 a | 71.54 ± 1.42 a | 28.61 ± 1.61 ab | 24.85 ± 1.10 b | 45.09 ± 1.99 c | |
| Gui A × R43-02 | 115 | 1 320.8 ± 62.7 a | 73.24 ± 3.28 a | 29.20 ± 2.40 ab | 27.88 ± 3.02 b | 54.55 ± 5.90 bc | |
| IFMc | Fengliangyou 4 (CK) | 140 | 1 270.4 ± 145.5 a | 70.83 ± 4.49 a | 29.57 ± 1.18 ab | 25.97 ± 3.06 a | 41.74 ± 4.92 a |
| Quan 9311A × B2A1920 | 130 | 1 193.7 ± 95.7 a | 64.53 ± 2.89 a | 30.71 ± 2.57 a | 23.29 ± 1.09 a | 40.30 ± 1.88 a | |
| Quan 9311A × R43-02 | 129 | 1 290.6 ± 55.4 a | 73.42 ± 6.80 a | 28.41 ± 0.63 ab | 26.63 ± 1.06 a | 46.45 ± 1.85 a | |
| Gui A × B2A1920 | 131 | 1 421.9 ± 87.2 a | 75.73 ± 4.62 a | 24.27 ± 2.06 b | 25.52 ± 0.93 a | 43.83 ± 1.60 a | |
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