Acta Prataculturae Sinica ›› 2023, Vol. 32 ›› Issue (3): 163-178.DOI: 10.11686/cyxb2022129
Yi-long ZHANG1(), Qi-kun YU1, Wen LI1, Pei-ying LI1,2,3(), Zong-jiu SUN1,2,3
Received:
2022-03-25
Revised:
2022-05-05
Online:
2023-03-20
Published:
2022-12-30
Contact:
Pei-ying LI
Yi-long ZHANG, Qi-kun YU, Wen LI, Pei-ying LI, Zong-jiu SUN. Aboveground and belowground phenotypic characteristics of Cynodon dactylon lines differing in drought resistance and endogenous hormone response to drought stress[J]. Acta Prataculturae Sinica, 2023, 32(3): 163-178.
编号Code | 采集地点Collection site | 抗旱类型Drought resistance type |
---|---|---|
C10 | 莎车县Shache County | 敏旱型Drought sensitive |
C32 | 托克逊县Tuokexun County | 敏旱型Drought sensitive |
C118 | 莎车县Shache County | 抗旱型Drought resistant |
C138 | 疏勒县Shule County | 抗旱型Drought resistant |
Tifway | 南京农业大学赠予Donated by Nanjing Agricultural University | 抗旱型Drought resistant |
Table 1 Genotype and related information of test materials
编号Code | 采集地点Collection site | 抗旱类型Drought resistance type |
---|---|---|
C10 | 莎车县Shache County | 敏旱型Drought sensitive |
C32 | 托克逊县Tuokexun County | 敏旱型Drought sensitive |
C118 | 莎车县Shache County | 抗旱型Drought resistant |
C138 | 疏勒县Shule County | 抗旱型Drought resistant |
Tifway | 南京农业大学赠予Donated by Nanjing Agricultural University | 抗旱型Drought resistant |
根系指标 Root index | 处理 Treatment | 供试材料Test material | ||||
---|---|---|---|---|---|---|
C10 | C32 | C118 | C138 | Tifway | ||
总根长Total root length (cm) | CK | 9797.20±214.63Aa | 4244.08±401.26Bb | 9643.99±542.48Ba | 9797.20±526.84Ba | 11568.62±695.84Ba |
MD | 10460.93±607.69Ab | 8454.88±188.83Ac | 10474.40±428.00ABb | 11870.69±378.37Aa | 12837.27±528.35Aa | |
SD | 10873.72±966.95Ab | 9216.38±615.68Ac | 11175.76±668.37Ab | 12316.42±350.52Aab | 13741.82±361.89Aa | |
根表面积Root surface area (cm2) | CK | 1015.12±29.05Ab | 507.81±66.43Bc | 1037.02±151.35Ab | 1018.72±101.60Bb | 1298.00±116.13Ba |
MD | 1038.87±72.45Ac | 928.18±41.73Ad | 1069.35±19.36Ac | 1200.51±15.66Ab | 1381.93±73.58ABa | |
SD | 1095.98±38.00Ab | 1049.31±164.92Ab | 1139.33±64.45Ab | 1324.85±103.30Aab | 1498.63±249.29Aa | |
根体积Root volume (cm3) | CK | 12.38±3.02Bb | 7.54±1.17Bc | 14.65±1.53Aab | 14.05±1.72Bab | 17.16±2.29Ba |
MD | 13.54±3.86ABbc | 11.14±1.17ABc | 15.54±1.67Ab | 16.46±2.75ABb | 23.14±1.84Aa | |
SD | 15.94±2.71Ab | 12.45±2.76Ac | 16.37±2.76Ab | 19.12±2.85Aab | 23.43±4.17Aa | |
根平均直径Root mean diameter (mm) | CK | 0.36±0.01Aa | 0.32±0.01Aa | 0.37±0.05Aa | 0.35±0.01Aa | 0.38±0.03Aa |
MD | 0.33±0.02ABb | 0.30±0.01Bb | 0.36±0.04ABa | 0.34±0.01Aa | 0.35±0.00Aa | |
SD | 0.31±0.01Bb | 0.30±0.01Bc | 0.34±0.02Ba | 0.33±0.02Bab | 0.35±0.01Aa | |
最长根长Longest root length (cm) | CK | 55.33±3.13Ba | 42.57±3.17Bc | 57.30±2.45Ba | 57.87±2.12Ba | 49.77±2.15Bb |
MD | 66.07±2.86Aa | 53.27±2.40Ac | 61.27±3.14ABb | 67.47±7.52ABa | 60.53±6.90Ab | |
SD | 68.90±6.31Ab | 60.27±6.25Ac | 67.40±6.65Ab | 76.00±4.55Aa | 69.60±5.75Ab | |
根干重Root dry weight (g) | CK | 2.43±0.25Bc | 1.13±0.09Bd | 2.19±0.25Bc | 3.35±0.31Ba | 2.95±0.10Cb |
MD | 2.79±0.16Ab | 2.26±0.16Ac | 2.66±0.17ABb | 3.58±0.29ABa | 3.62±0.26Ba | |
SD | 2.89±0.46Ab | 2.51±0.25Ac | 2.91±0.34Ab | 4.41±0.64Aa | 4.08±0.23Aa | |
根系活力Root activity (μg·g-1·h-1) | CK | 229.00±28.28Bc | 198.12±19.55Bd | 279.29±25.37Bb | 308.71±24.54Ba | 321.65±17.89Ba |
MD | 385.76±26.20Ac | 322.24±27.04Ad | 480.76±18.30Ab | 462.24±21.21Ab | 510.18±22.46Aa | |
SD | 172.82±19.55Bd | 144.88±18.30Be | 203.12±18.30Cc | 361.35±16.64Bb | 313.12±28.28Ba |
Table 2 Effects of drought stress on root indexes of C. dactylon
根系指标 Root index | 处理 Treatment | 供试材料Test material | ||||
---|---|---|---|---|---|---|
C10 | C32 | C118 | C138 | Tifway | ||
总根长Total root length (cm) | CK | 9797.20±214.63Aa | 4244.08±401.26Bb | 9643.99±542.48Ba | 9797.20±526.84Ba | 11568.62±695.84Ba |
MD | 10460.93±607.69Ab | 8454.88±188.83Ac | 10474.40±428.00ABb | 11870.69±378.37Aa | 12837.27±528.35Aa | |
SD | 10873.72±966.95Ab | 9216.38±615.68Ac | 11175.76±668.37Ab | 12316.42±350.52Aab | 13741.82±361.89Aa | |
根表面积Root surface area (cm2) | CK | 1015.12±29.05Ab | 507.81±66.43Bc | 1037.02±151.35Ab | 1018.72±101.60Bb | 1298.00±116.13Ba |
MD | 1038.87±72.45Ac | 928.18±41.73Ad | 1069.35±19.36Ac | 1200.51±15.66Ab | 1381.93±73.58ABa | |
SD | 1095.98±38.00Ab | 1049.31±164.92Ab | 1139.33±64.45Ab | 1324.85±103.30Aab | 1498.63±249.29Aa | |
根体积Root volume (cm3) | CK | 12.38±3.02Bb | 7.54±1.17Bc | 14.65±1.53Aab | 14.05±1.72Bab | 17.16±2.29Ba |
MD | 13.54±3.86ABbc | 11.14±1.17ABc | 15.54±1.67Ab | 16.46±2.75ABb | 23.14±1.84Aa | |
SD | 15.94±2.71Ab | 12.45±2.76Ac | 16.37±2.76Ab | 19.12±2.85Aab | 23.43±4.17Aa | |
根平均直径Root mean diameter (mm) | CK | 0.36±0.01Aa | 0.32±0.01Aa | 0.37±0.05Aa | 0.35±0.01Aa | 0.38±0.03Aa |
MD | 0.33±0.02ABb | 0.30±0.01Bb | 0.36±0.04ABa | 0.34±0.01Aa | 0.35±0.00Aa | |
SD | 0.31±0.01Bb | 0.30±0.01Bc | 0.34±0.02Ba | 0.33±0.02Bab | 0.35±0.01Aa | |
最长根长Longest root length (cm) | CK | 55.33±3.13Ba | 42.57±3.17Bc | 57.30±2.45Ba | 57.87±2.12Ba | 49.77±2.15Bb |
MD | 66.07±2.86Aa | 53.27±2.40Ac | 61.27±3.14ABb | 67.47±7.52ABa | 60.53±6.90Ab | |
SD | 68.90±6.31Ab | 60.27±6.25Ac | 67.40±6.65Ab | 76.00±4.55Aa | 69.60±5.75Ab | |
根干重Root dry weight (g) | CK | 2.43±0.25Bc | 1.13±0.09Bd | 2.19±0.25Bc | 3.35±0.31Ba | 2.95±0.10Cb |
MD | 2.79±0.16Ab | 2.26±0.16Ac | 2.66±0.17ABb | 3.58±0.29ABa | 3.62±0.26Ba | |
SD | 2.89±0.46Ab | 2.51±0.25Ac | 2.91±0.34Ab | 4.41±0.64Aa | 4.08±0.23Aa | |
根系活力Root activity (μg·g-1·h-1) | CK | 229.00±28.28Bc | 198.12±19.55Bd | 279.29±25.37Bb | 308.71±24.54Ba | 321.65±17.89Ba |
MD | 385.76±26.20Ac | 322.24±27.04Ad | 480.76±18.30Ab | 462.24±21.21Ab | 510.18±22.46Aa | |
SD | 172.82±19.55Bd | 144.88±18.30Be | 203.12±18.30Cc | 361.35±16.64Bb | 313.12±28.28Ba |
指标 Index | 部位 Organ | 处理 Treatment | 供试材料Test material | |
---|---|---|---|---|
C32 | C138 | |||
吲哚乙酸/脱落酸IAA/ABA | 叶Leaf | CK | 1.922±0.089Aa | 1.710±0.017Ab |
MD | 1.282±0.042Bb | 1.615±0.134ABa | ||
SD | 1.085±0.117Cb | 1.502±0.102Ba | ||
根Root | CK | 0.213±0.018Aa | 0.186±0.018Ab | |
MD | 0.146±0.009Bb | 0.163±0.007Aa | ||
SD | 0.153±0.015Bb | 0.172±0.005Aa | ||
赤霉素/脱落酸GA3/ABA | 叶Leaf | CK | 0.117±0.008Aa | 0.092±0.002Bb |
MD | 0.097±0.007Ba | 0.089±0.005Ba | ||
SD | 0.080±0.012Bb | 0.107±0.010Aa | ||
根Root | CK | 0.022±0.002Aa | 0.022±0.001Aa | |
MD | 0.018±0.002Bb | 0.019±0.001Ba | ||
SD | 0.012±0.001Cb | 0.018±0.001Ba | ||
玉米素核苷/脱落酸ZR/ABA | 叶Leaf | CK | 0.209±0.005Aa | 0.186±0.003Ab |
MD | 0.142±0.010Bb | 0.158±0.014Ba | ||
SD | 0.131±0.014Bb | 0.184±0.020Aa | ||
根Root | CK | 0.030±0.002Aa | 0.029±0.001Aa | |
MD | 0.025±0.001Bb | 0.030±0.003Aa | ||
SD | 0.016±0.002Cb | 0.019±0.002Ba | ||
油菜素内酯/脱落酸Br/ABA | 叶Leaf | CK | 0.124±0.010Aa | 0.082±0.002Ab |
MD | 0.085±0.006Ba | 0.075±0.009Ab | ||
SD | 0.066±0.010Cb | 0.077±0.004Aa | ||
根Root | CK | 0.021±0.001Aa | 0.019±0.002Ab | |
MD | 0.017±0.001Ba | 0.016±0.002ABa | ||
SD | 0.010±0.001Cb | 0.012±0.002Ba | ||
赤霉素/吲哚乙酸GA3/IAA | 叶Leaf | CK | 0.061±0.007Ba | 0.054±0.001Bb |
MD | 0.075±0.005Aa | 0.055±0.001Bb | ||
SD | 0.074±0.005Aa | 0.071±0.002Aa | ||
根Root | CK | 0.105±0.002Ba | 0.118±0.014Aa | |
MD | 0.123±0.006Aa | 0.117±0.004Aa | ||
SD | 0.080±0.008Cb | 0.106±0.004Aa | ||
玉米素核苷/吲哚乙酸ZR/IAA | 叶Leaf | CK | 0.109±0.006Aa | 0.109±0.001Ba |
MD | 0.111±0.008Aa | 0.098±0.003Ca | ||
SD | 0.120±0.004Aa | 0.122±0.006Aa | ||
根Root | CK | 0.142±0.006Bb | 0.157±0.013Ba | |
MD | 0.172±0.004Ab | 0.183±0.009Aa | ||
SD | 0.108±0.008Ca | 0.110±0.012Ca |
Table 3 Changes of endogenous hormone ratio in leaf and root of C. dactylon with different drought resistance under drought stress
指标 Index | 部位 Organ | 处理 Treatment | 供试材料Test material | |
---|---|---|---|---|
C32 | C138 | |||
吲哚乙酸/脱落酸IAA/ABA | 叶Leaf | CK | 1.922±0.089Aa | 1.710±0.017Ab |
MD | 1.282±0.042Bb | 1.615±0.134ABa | ||
SD | 1.085±0.117Cb | 1.502±0.102Ba | ||
根Root | CK | 0.213±0.018Aa | 0.186±0.018Ab | |
MD | 0.146±0.009Bb | 0.163±0.007Aa | ||
SD | 0.153±0.015Bb | 0.172±0.005Aa | ||
赤霉素/脱落酸GA3/ABA | 叶Leaf | CK | 0.117±0.008Aa | 0.092±0.002Bb |
MD | 0.097±0.007Ba | 0.089±0.005Ba | ||
SD | 0.080±0.012Bb | 0.107±0.010Aa | ||
根Root | CK | 0.022±0.002Aa | 0.022±0.001Aa | |
MD | 0.018±0.002Bb | 0.019±0.001Ba | ||
SD | 0.012±0.001Cb | 0.018±0.001Ba | ||
玉米素核苷/脱落酸ZR/ABA | 叶Leaf | CK | 0.209±0.005Aa | 0.186±0.003Ab |
MD | 0.142±0.010Bb | 0.158±0.014Ba | ||
SD | 0.131±0.014Bb | 0.184±0.020Aa | ||
根Root | CK | 0.030±0.002Aa | 0.029±0.001Aa | |
MD | 0.025±0.001Bb | 0.030±0.003Aa | ||
SD | 0.016±0.002Cb | 0.019±0.002Ba | ||
油菜素内酯/脱落酸Br/ABA | 叶Leaf | CK | 0.124±0.010Aa | 0.082±0.002Ab |
MD | 0.085±0.006Ba | 0.075±0.009Ab | ||
SD | 0.066±0.010Cb | 0.077±0.004Aa | ||
根Root | CK | 0.021±0.001Aa | 0.019±0.002Ab | |
MD | 0.017±0.001Ba | 0.016±0.002ABa | ||
SD | 0.010±0.001Cb | 0.012±0.002Ba | ||
赤霉素/吲哚乙酸GA3/IAA | 叶Leaf | CK | 0.061±0.007Ba | 0.054±0.001Bb |
MD | 0.075±0.005Aa | 0.055±0.001Bb | ||
SD | 0.074±0.005Aa | 0.071±0.002Aa | ||
根Root | CK | 0.105±0.002Ba | 0.118±0.014Aa | |
MD | 0.123±0.006Aa | 0.117±0.004Aa | ||
SD | 0.080±0.008Cb | 0.106±0.004Aa | ||
玉米素核苷/吲哚乙酸ZR/IAA | 叶Leaf | CK | 0.109±0.006Aa | 0.109±0.001Ba |
MD | 0.111±0.008Aa | 0.098±0.003Ca | ||
SD | 0.120±0.004Aa | 0.122±0.006Aa | ||
根Root | CK | 0.142±0.006Bb | 0.157±0.013Ba | |
MD | 0.172±0.004Ab | 0.183±0.009Aa | ||
SD | 0.108±0.008Ca | 0.110±0.012Ca |
指标 Index | 叶长 Leaf length | 叶宽 Leaf width | 叶面积 Leaf area | 总根长 Total root length | 根表面积 Root surface area | 根体积 Root volume | 根平均直径Root mean diameter | 最长根长Longest root length | 根干重Root dry weight | 根系活力Root activity |
---|---|---|---|---|---|---|---|---|---|---|
吲哚乙酸IAA | 0.873** | -0.296 | 0.810** | 0.247 | 0.294 | 0.329 | -0.099 | 0.442 | 0.398 | -0.286 |
脱落酸ABA | -0.427 | -0.115 | -0.327 | 0.539* | 0.611** | 0.426 | -0.466 | 0.649** | 0.459 | -0.162 |
赤霉素GA3 | -0.400 | -0.151 | -0.497* | 0.430 | 0.393 | 0.537* | 0.600** | 0.480* | 0.619** | 0.501* |
玉米素核苷ZR | 0.329 | -0.326 | 0.269 | 0.217 | 0.107 | 0.227 | 0.640** | 0.005 | 0.209 | 0.701** |
油菜素内酯Br | -0.452 | 0.524* | -0.474* | -0.237 | -0.334 | -0.137 | 0.573* | -0.333 | -0.053 | 0.358 |
吲哚乙酸/脱落酸IAA/ABA | 0.573* | 0.061 | 0.502* | -0.532* | -0.562* | -0.284 | 0.455 | -0.457 | -0.279 | -0.191 |
赤霉素/脱落酸GA3/ABA | 0.055 | 0.116 | -0.100 | -0.301 | -0.372 | -0.120 | 0.740** | -0.354 | -0.117 | 0.315 |
玉米素核苷/脱落酸ZR/ABA | 0.452 | 0.018 | 0.361 | -0.336 | -0.424 | -0.235 | 0.605** | -0.484* | -0.272 | 0.340 |
油菜素内酯/脱落酸Br/ABA | -0.030 | 0.420 | -0.079 | -0.524* | -0.595** | -0.387 | 0.520* | -0.614** | -0.384 | 0.143 |
赤霉素/吲哚乙酸GA3/IAA | -0.748** | 0.052 | -0.778** | 0.121 | 0.047 | 0.110 | 0.532* | -0.035 | 0.115 | 0.653** |
玉米素核苷/吲哚乙酸ZR/IAA | -0.416 | -0.103 | -0.423 | -0.004 | -0.093 | -0.070 | 0.363 | -0.232 | -0.108 | 0.562* |
Table 4 Correlation between morphological indexes of C. dactylon leaf and root and endogenous hormones and their proportion under drought stress
指标 Index | 叶长 Leaf length | 叶宽 Leaf width | 叶面积 Leaf area | 总根长 Total root length | 根表面积 Root surface area | 根体积 Root volume | 根平均直径Root mean diameter | 最长根长Longest root length | 根干重Root dry weight | 根系活力Root activity |
---|---|---|---|---|---|---|---|---|---|---|
吲哚乙酸IAA | 0.873** | -0.296 | 0.810** | 0.247 | 0.294 | 0.329 | -0.099 | 0.442 | 0.398 | -0.286 |
脱落酸ABA | -0.427 | -0.115 | -0.327 | 0.539* | 0.611** | 0.426 | -0.466 | 0.649** | 0.459 | -0.162 |
赤霉素GA3 | -0.400 | -0.151 | -0.497* | 0.430 | 0.393 | 0.537* | 0.600** | 0.480* | 0.619** | 0.501* |
玉米素核苷ZR | 0.329 | -0.326 | 0.269 | 0.217 | 0.107 | 0.227 | 0.640** | 0.005 | 0.209 | 0.701** |
油菜素内酯Br | -0.452 | 0.524* | -0.474* | -0.237 | -0.334 | -0.137 | 0.573* | -0.333 | -0.053 | 0.358 |
吲哚乙酸/脱落酸IAA/ABA | 0.573* | 0.061 | 0.502* | -0.532* | -0.562* | -0.284 | 0.455 | -0.457 | -0.279 | -0.191 |
赤霉素/脱落酸GA3/ABA | 0.055 | 0.116 | -0.100 | -0.301 | -0.372 | -0.120 | 0.740** | -0.354 | -0.117 | 0.315 |
玉米素核苷/脱落酸ZR/ABA | 0.452 | 0.018 | 0.361 | -0.336 | -0.424 | -0.235 | 0.605** | -0.484* | -0.272 | 0.340 |
油菜素内酯/脱落酸Br/ABA | -0.030 | 0.420 | -0.079 | -0.524* | -0.595** | -0.387 | 0.520* | -0.614** | -0.384 | 0.143 |
赤霉素/吲哚乙酸GA3/IAA | -0.748** | 0.052 | -0.778** | 0.121 | 0.047 | 0.110 | 0.532* | -0.035 | 0.115 | 0.653** |
玉米素核苷/吲哚乙酸ZR/IAA | -0.416 | -0.103 | -0.423 | -0.004 | -0.093 | -0.070 | 0.363 | -0.232 | -0.108 | 0.562* |
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