Chinese Journal OF Rice Science ›› 2023, Vol. 37 ›› Issue (6): 642-656.DOI: 10.16819/j.1001-7216.2023.230304
• Research Papers • Previous Articles
ZOU Yuao1, WU Qixia1,*(), ZHOU Qianshun1, ZHU Jianqiang1, YAN Jun1,2
Received:
2023-03-16
Revised:
2023-08-10
Online:
2023-11-10
Published:
2023-11-14
Contact:
*email: qixiawu@yangtzeu.edu.cn
邹宇傲1, 吴启侠1,*(), 周乾顺1, 朱建强1, 晏军1,2
通讯作者:
*email: qixiawu@yangtzeu.edu.cn
基金资助:
ZOU Yuao, WU Qixia, ZHOU Qianshun, ZHU Jianqiang, YAN Jun. Response of Middle-season Hybrid Rice to Flooding Stress at the Booting Stage[J]. Chinese Journal OF Rice Science, 2023, 37(6): 642-656.
邹宇傲, 吴启侠, 周乾顺, 朱建强, 晏军. 孕穗期杂交中稻对淹涝胁迫的响应[J]. 中国水稻科学, 2023, 37(6): 642-656.
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URL: http://www.ricesci.cn/EN/10.16819/j.1001-7216.2023.230304
pH | 土壤速效养分含量Soil available nutrient content | 每盆肥料用量 Application level per pot | |||||
---|---|---|---|---|---|---|---|
碱解氮 Alkaline nitrogen /(mg·kg−1) | 速效磷 Available nitrogen /(mg·kg−1) | 速效钾 Available nitrogen /(mg·kg−1) | 尿素 Urea/g | 氯化钾 Potassium chloride/g | 过磷酸钙 Superphosphate/g | ||
7.6 | 69.4 | 28.7 | 118.7 | 2.5(70%基肥、30%分蘖肥) 2.5(70% as basal fertilizer, 30% for tillering) | 1.95(基肥) 1.95(Basal fertilizer) | 1.13(基肥) 1.13(Basal fertilizer) |
Table 1. Soil available nutrient contents and fertilizer application level.
pH | 土壤速效养分含量Soil available nutrient content | 每盆肥料用量 Application level per pot | |||||
---|---|---|---|---|---|---|---|
碱解氮 Alkaline nitrogen /(mg·kg−1) | 速效磷 Available nitrogen /(mg·kg−1) | 速效钾 Available nitrogen /(mg·kg−1) | 尿素 Urea/g | 氯化钾 Potassium chloride/g | 过磷酸钙 Superphosphate/g | ||
7.6 | 69.4 | 28.7 | 118.7 | 2.5(70%基肥、30%分蘖肥) 2.5(70% as basal fertilizer, 30% for tillering) | 1.95(基肥) 1.95(Basal fertilizer) | 1.13(基肥) 1.13(Basal fertilizer) |
指标 Indicator | 年份 Year(Y) | 淹涝天数 Flooding days(D) | 淹涝深度 Flooding depth(H) | Y×D | Y×H | D×H | Y×D×H |
---|---|---|---|---|---|---|---|
株高增长量Plant height growth(PHG) | 3.27 | 33.02** | 40.25** | 1.33 | 0.62 | 2.93* | 0.27 |
第4节间长Length of the 4th internode(L4I) | 0.38 | 3.81* | 54.22** | 0.06 | 0.08 | NS | 0.01 |
单穗干质量Dry weight per panicle(DWPP) | 0.06 | 33.68** | 92.72** | 1.26 | 0.22 | 4.78** | 0.36 |
剑叶MDA Flag leaf MDA(F-MDA) | 1.52 | NS | 503.80** | 1.20 | 1.15 | NS | 0.69 |
根系MDA Root MDA(R-MDA) | 0.35 | 44.51** | 123.88** | 0.04 | 0.25 | 72.59** | 0.32 |
叶绿素a含量Chl a content | 0.03 | 103.11** | 222.31** | 0.03 | 0.04 | 9.12* | 0.03 |
叶绿素b含量Chl b content | 0.25 | 4.69* | 35.93** | 0.34 | 0.02 | NS | 0.01 |
可溶性糖含量Soluble sugar content(SS) | 0.02 | 6.74** | 136.62** | 1.26 | 1.39 | 10.04** | 0.58 |
可溶性蛋白含量Soluble protein content(SP) | 1.58 | 30.44** | 253.54** | 1.69 | 2.07 | NS | 0.59 |
剑叶POD活性 Flag leaf POD activity(F-POD) | 0.01 | 260.61** | 751.44** | 0.06 | 0.21 | 24.61** | 0.06 |
根系POD活性 Root POD activity(R-POD) | 0.09 | 170.49** | 69.58** | 69.58 | 0.57 | 43.77** | 0.27 |
剑叶SOD活性 Flag leaf SOD activity(F-SOD) | 0.71 | 286.95** | 130.64** | 0.63 | 0.57 | 166.97** | 0.48 |
根系SOD活性 Root SOD activity(R-SOD) | 0.46 | 121.99** | 132.64** | 0.07 | 1.84 | 126.59** | 3.21** |
净光合速率Pn | 1.71 | 89.68** | 464.66** | 0.04 | 0.01 | 5.99** | 0.06 |
气孔导度Gs | 0.06 | 359.18** | 1666.49** | 1.68 | 0.06 | 21.44** | 0.21 |
胞间CO2浓度Ci | 0.31 | 30.27** | 81.00** | 0.09 | 0.04 | 2.61* | 0.01 |
蒸腾速率Tr | 0.00 | 72.17** | 115.21** | 0.00 | 0.00 | 3.23** | 0.00 |
Table 2. Variance analysis of morphological and physiological indexes of rice under flooding stress.
指标 Indicator | 年份 Year(Y) | 淹涝天数 Flooding days(D) | 淹涝深度 Flooding depth(H) | Y×D | Y×H | D×H | Y×D×H |
---|---|---|---|---|---|---|---|
株高增长量Plant height growth(PHG) | 3.27 | 33.02** | 40.25** | 1.33 | 0.62 | 2.93* | 0.27 |
第4节间长Length of the 4th internode(L4I) | 0.38 | 3.81* | 54.22** | 0.06 | 0.08 | NS | 0.01 |
单穗干质量Dry weight per panicle(DWPP) | 0.06 | 33.68** | 92.72** | 1.26 | 0.22 | 4.78** | 0.36 |
剑叶MDA Flag leaf MDA(F-MDA) | 1.52 | NS | 503.80** | 1.20 | 1.15 | NS | 0.69 |
根系MDA Root MDA(R-MDA) | 0.35 | 44.51** | 123.88** | 0.04 | 0.25 | 72.59** | 0.32 |
叶绿素a含量Chl a content | 0.03 | 103.11** | 222.31** | 0.03 | 0.04 | 9.12* | 0.03 |
叶绿素b含量Chl b content | 0.25 | 4.69* | 35.93** | 0.34 | 0.02 | NS | 0.01 |
可溶性糖含量Soluble sugar content(SS) | 0.02 | 6.74** | 136.62** | 1.26 | 1.39 | 10.04** | 0.58 |
可溶性蛋白含量Soluble protein content(SP) | 1.58 | 30.44** | 253.54** | 1.69 | 2.07 | NS | 0.59 |
剑叶POD活性 Flag leaf POD activity(F-POD) | 0.01 | 260.61** | 751.44** | 0.06 | 0.21 | 24.61** | 0.06 |
根系POD活性 Root POD activity(R-POD) | 0.09 | 170.49** | 69.58** | 69.58 | 0.57 | 43.77** | 0.27 |
剑叶SOD活性 Flag leaf SOD activity(F-SOD) | 0.71 | 286.95** | 130.64** | 0.63 | 0.57 | 166.97** | 0.48 |
根系SOD活性 Root SOD activity(R-SOD) | 0.46 | 121.99** | 132.64** | 0.07 | 1.84 | 126.59** | 3.21** |
净光合速率Pn | 1.71 | 89.68** | 464.66** | 0.04 | 0.01 | 5.99** | 0.06 |
气孔导度Gs | 0.06 | 359.18** | 1666.49** | 1.68 | 0.06 | 21.44** | 0.21 |
胞间CO2浓度Ci | 0.31 | 30.27** | 81.00** | 0.09 | 0.04 | 2.61* | 0.01 |
蒸腾速率Tr | 0.00 | 72.17** | 115.21** | 0.00 | 0.00 | 3.23** | 0.00 |
Fig. 1. Growth of rice plant height in different flooding treatments. CK, Control; 1/4PH, 1/2PH, 3/4PH and 4/4PH represent flooding depth of 1/4, 1/2, 3/4 and full plant height; different lowercase letters on the columns show significant differences between treatments ( P < 0.05 ). The same below.
年份 Year | 回归关系式 Regression equation | 标准化回归系数绝对值 Absolute value of standardized regression coefficient | 相关系数 Correlation coefficients | F值 F-value | |
---|---|---|---|---|---|
D | H | ||||
2017 | YPH=1.613D+0.121H−4.793 | 0.578 | 0.751 | 0.95 | 52.89** |
2018 | YPH=2.517D+0.156H−6.747 | 0.688 | 0.704 | 0.97 | 96.85** |
Table 3. Quantitative relationship of increase in plant height (YPH) with flooding duration(D), flooding depth(H) of mid-season hybrid rice under flooding stress.
年份 Year | 回归关系式 Regression equation | 标准化回归系数绝对值 Absolute value of standardized regression coefficient | 相关系数 Correlation coefficients | F值 F-value | |
---|---|---|---|---|---|
D | H | ||||
2017 | YPH=1.613D+0.121H−4.793 | 0.578 | 0.751 | 0.95 | 52.89** |
2018 | YPH=2.517D+0.156H−6.747 | 0.688 | 0.704 | 0.97 | 96.85** |
年份 Year | 处理 Treatment | 有效穗数 Effective panicle number per plant | 每穗实粒数 Number of grains per panicle | 结实率 Seed setting rate/% | 千粒重 1000-grain weight/g | 实际产量 Actual yield/(g·pot−1) | 减产率 Yield reduction rate/% |
---|---|---|---|---|---|---|---|
2017 | CK | 14.7±0.58 ab | 251.67±5.65 a | 85.51±1.15 a | 23.78±0.41 a | 160.73±3.30 a | 0.00 |
1/4PH-3 | 15.3±1.53 a | 214.61±6.43 b | 73.00±3.11 b | 23.59±0.55 ab | 127.60±4.68 b | 20.61 | |
1/2PH-3 | 14.0±1.00 abc | 199.53±5.04 c | 72.73±2.13 b | 22.77±0.59 abc | 125.54±3.01 b | 21.90 | |
3/4PH-3 | 13.3±2.08 abc | 188.41±6.75 d | 70.11±1.83 bcd | 22.70±0.23 abc | 104.94±1.17 d | 34.71 | |
4/4PH-3 | 12.3±2.31 c | 90.56±3.24 f | 67.10±2.71 d | 21.41±0.55 def | 44.91±0.70 f | 72.06 | |
1/4PH-6 | 15.0±1.00 ab | 206.75±10.46 bc | 71.10±1.91 bc | 22.54±0.59 bcd | 120.12±3.55 c | 25.27 | |
1/2PH-6 | 14.0±2.00 abc | 199.77±12.00 c | 67.80±3.43 cd | 22.49±0.53 bcd | 116.45±2.47 c | 27.55 | |
3/4PH-6 | 9.7±0.58 d | 173.13±3.26 e | 66.27±1.71 d | 20.91±0.10 f | 63.13±3.04 e | 60.72 | |
4/4PH-6 | 9.3±0.58 d | 63.15±2.46 g | 37.29±2.24 f | 20.64±0.86 f | 23.25±2.46 g | 85.54 | |
1/4PH-9 | 14.3±2.08 abc | 202.55±7.96 c | 69.74±2.66 bcd | 22.27±0.21 cde | 118.59±4.63 c | 26.22 | |
1/2PH-9 | 13.0±1.00 bc | 180.59±7.08 de | 61.56±0.28 e | 21.15±0.49 ef | 105.49±3.98 d | 34.37 | |
3/4PH-9 | 8.3±0.58 d | 82.77±3.55 h | 32.52±3.69 g | 20.47±1.84 f | 25.85±3.31 g | 83.92 | |
4/4PH-9 | 0.0±0.00 e | 0.00±0.00 | 0.00±0.00 h | 0.00±0.00 g | 0.00±0.00 h | 100.00 | |
2018 | CK | 15.0±0.00 ab | 231.59±5.59 a | 84.93±0.84 a | 24.47±0.75 a | 157.85±15.78 a | 0.00 |
1/4PH-3 | 15.3±1.53 a | 221.69±15.82 ab | 72.57±1.49 b | 23.82±0.90 ab | 124.09±5.36 b | 21.97 | |
1/2PH-3 | 13.7±0.58 bc | 203.15±4.65 c | 71.92±1.93 b | 22.70±0.81 bc | 123.17±6.55 b | 21.39 | |
3/4PH-3 | 12.7±0.58 cd | 187.99±5.12 de | 70.26±3.04 bc | 22.60±1.06 bc | 103.78±3.71 c | 34.25 | |
4/4PH-3 | 12.0±0.00 d | 91.43±5.82 f | 68.24±2.95 cd | 21.70±1.00 cd | 43.05±2.18 e | 72.73 | |
1/4PH-6 | 14.7±0.58 ab | 208.3±9.65 bc | 72.12±1.55 b | 22.59±1.02 bc | 123.67±6.15 b | 21.65 | |
1/2PH-6 | 14.0±0.00 abc | 197.77±9.38 cd | 67.55±1.92 cd | 22.84±1.46 abc | 118.46±5.63 b | 24.96 | |
3/4PH-6 | 9.7±0.58 e | 178.74±3.44 e | 65.87±0.11 d | 20.53±0.84 d | 61.77±5.91 d | 60.87 | |
4/4PH-6 | 9.3±1.53 e | 70.26±5.85 g | 37.97±1.56 f | 20.30±0.41 d | 25.91±4.78 f | 83.59 | |
1/4PH-9 | 13.7±0.58 bc | 200.52±2.78 cd | 67.38±2.66 cd | 22.44±1.49 bc | 115.04±4.34 b | 27.12 | |
1/2PH-9 | 13.0±1.73 cd | 182.54±11.81 e | 61.05±1.49 e | 21.59±1.00 cd | 102.45±6.00 c | 35.10 | |
3/4PH-9 | 8.3±0.58 e | 82.24±11.81 fg | 32.66±2.90 g | 20.79±0.95 d | 25.37±5.50 f | 83.93 | |
4/4PH-9 | 0.0±0.00 f | 0.00±0.00 h | 0.00±0.00 h | 0.00±0.00 e | 0.00±0.00 g | 100.00 | |
ANOVA | |||||||
年份Year(Y) | 0.15 | 2.67 | 0.28 | 1.38 | 0.80 | ||
淹涝天数Flooding days(D) | 94.61** | 344.41** | 1116.62** | 358.38** | 174.92** | ||
淹涝深度Flooding depth(H) | 167.72** | 1839.64** | 1553.42** | 430.35** | 1290.14** | ||
Y×D | 0.07 | 0.29 | 0.28 | 0.17 | 0.56 | ||
Y×H | 0.24 | 8.31** | 0.3 | 0.6 | 0.14 | ||
D×H | 36.01** | 78.12** | 317.36** | 247.29** | 38.045** | ||
Y×D×H | 0.09 | 0.33 | 0.24 | 0.13 | 0.14 |
Table 4. Yield components of rice under different flooding treatments.
年份 Year | 处理 Treatment | 有效穗数 Effective panicle number per plant | 每穗实粒数 Number of grains per panicle | 结实率 Seed setting rate/% | 千粒重 1000-grain weight/g | 实际产量 Actual yield/(g·pot−1) | 减产率 Yield reduction rate/% |
---|---|---|---|---|---|---|---|
2017 | CK | 14.7±0.58 ab | 251.67±5.65 a | 85.51±1.15 a | 23.78±0.41 a | 160.73±3.30 a | 0.00 |
1/4PH-3 | 15.3±1.53 a | 214.61±6.43 b | 73.00±3.11 b | 23.59±0.55 ab | 127.60±4.68 b | 20.61 | |
1/2PH-3 | 14.0±1.00 abc | 199.53±5.04 c | 72.73±2.13 b | 22.77±0.59 abc | 125.54±3.01 b | 21.90 | |
3/4PH-3 | 13.3±2.08 abc | 188.41±6.75 d | 70.11±1.83 bcd | 22.70±0.23 abc | 104.94±1.17 d | 34.71 | |
4/4PH-3 | 12.3±2.31 c | 90.56±3.24 f | 67.10±2.71 d | 21.41±0.55 def | 44.91±0.70 f | 72.06 | |
1/4PH-6 | 15.0±1.00 ab | 206.75±10.46 bc | 71.10±1.91 bc | 22.54±0.59 bcd | 120.12±3.55 c | 25.27 | |
1/2PH-6 | 14.0±2.00 abc | 199.77±12.00 c | 67.80±3.43 cd | 22.49±0.53 bcd | 116.45±2.47 c | 27.55 | |
3/4PH-6 | 9.7±0.58 d | 173.13±3.26 e | 66.27±1.71 d | 20.91±0.10 f | 63.13±3.04 e | 60.72 | |
4/4PH-6 | 9.3±0.58 d | 63.15±2.46 g | 37.29±2.24 f | 20.64±0.86 f | 23.25±2.46 g | 85.54 | |
1/4PH-9 | 14.3±2.08 abc | 202.55±7.96 c | 69.74±2.66 bcd | 22.27±0.21 cde | 118.59±4.63 c | 26.22 | |
1/2PH-9 | 13.0±1.00 bc | 180.59±7.08 de | 61.56±0.28 e | 21.15±0.49 ef | 105.49±3.98 d | 34.37 | |
3/4PH-9 | 8.3±0.58 d | 82.77±3.55 h | 32.52±3.69 g | 20.47±1.84 f | 25.85±3.31 g | 83.92 | |
4/4PH-9 | 0.0±0.00 e | 0.00±0.00 | 0.00±0.00 h | 0.00±0.00 g | 0.00±0.00 h | 100.00 | |
2018 | CK | 15.0±0.00 ab | 231.59±5.59 a | 84.93±0.84 a | 24.47±0.75 a | 157.85±15.78 a | 0.00 |
1/4PH-3 | 15.3±1.53 a | 221.69±15.82 ab | 72.57±1.49 b | 23.82±0.90 ab | 124.09±5.36 b | 21.97 | |
1/2PH-3 | 13.7±0.58 bc | 203.15±4.65 c | 71.92±1.93 b | 22.70±0.81 bc | 123.17±6.55 b | 21.39 | |
3/4PH-3 | 12.7±0.58 cd | 187.99±5.12 de | 70.26±3.04 bc | 22.60±1.06 bc | 103.78±3.71 c | 34.25 | |
4/4PH-3 | 12.0±0.00 d | 91.43±5.82 f | 68.24±2.95 cd | 21.70±1.00 cd | 43.05±2.18 e | 72.73 | |
1/4PH-6 | 14.7±0.58 ab | 208.3±9.65 bc | 72.12±1.55 b | 22.59±1.02 bc | 123.67±6.15 b | 21.65 | |
1/2PH-6 | 14.0±0.00 abc | 197.77±9.38 cd | 67.55±1.92 cd | 22.84±1.46 abc | 118.46±5.63 b | 24.96 | |
3/4PH-6 | 9.7±0.58 e | 178.74±3.44 e | 65.87±0.11 d | 20.53±0.84 d | 61.77±5.91 d | 60.87 | |
4/4PH-6 | 9.3±1.53 e | 70.26±5.85 g | 37.97±1.56 f | 20.30±0.41 d | 25.91±4.78 f | 83.59 | |
1/4PH-9 | 13.7±0.58 bc | 200.52±2.78 cd | 67.38±2.66 cd | 22.44±1.49 bc | 115.04±4.34 b | 27.12 | |
1/2PH-9 | 13.0±1.73 cd | 182.54±11.81 e | 61.05±1.49 e | 21.59±1.00 cd | 102.45±6.00 c | 35.10 | |
3/4PH-9 | 8.3±0.58 e | 82.24±11.81 fg | 32.66±2.90 g | 20.79±0.95 d | 25.37±5.50 f | 83.93 | |
4/4PH-9 | 0.0±0.00 f | 0.00±0.00 h | 0.00±0.00 h | 0.00±0.00 e | 0.00±0.00 g | 100.00 | |
ANOVA | |||||||
年份Year(Y) | 0.15 | 2.67 | 0.28 | 1.38 | 0.80 | ||
淹涝天数Flooding days(D) | 94.61** | 344.41** | 1116.62** | 358.38** | 174.92** | ||
淹涝深度Flooding depth(H) | 167.72** | 1839.64** | 1553.42** | 430.35** | 1290.14** | ||
Y×D | 0.07 | 0.29 | 0.28 | 0.17 | 0.56 | ||
Y×H | 0.24 | 8.31** | 0.3 | 0.6 | 0.14 | ||
D×H | 36.01** | 78.12** | 317.36** | 247.29** | 38.045** | ||
Y×D×H | 0.09 | 0.33 | 0.24 | 0.13 | 0.14 |
Fig. 9. Correlation of yield compments with single panicle dry weight and physiological indexes under various flooding trentments. Tr, Transpiration rate; Ci, Intercellular CO2 concentration; Gs, Stomatal conductance; Pn, Net photosynthesis; SP, Soluble protein content; SS, Soluble sugar content; R-SOD, Root SOD activity; F-SOD, Flag leaf SOD activity; R-POD, Root POD activity; F-POD, Flag leaf POD activity; R-MDA, Root MDA content; F-MDA, Flag leaf MDA content; DWSE, Dry weight per panicle. The same below.
年份 Year | 回归关系式 Regression equation | 标准化回归系数绝对值 Standardized regression coefficient absolute value | 相关系数 Correlation coefficients | F值 F value | |
---|---|---|---|---|---|
D | H | ||||
2017 | Ry=194.513−5.102D−133.397H | 0.244 | 0.922 | 0.95 | 60.99** |
2018 | Ry=162.499−3.730D−109.620H | 0.214 | 0.908 | 0.93 | 40.00** |
Table 5. Quantitative relationship of actual rice yield(YR) with flooding duration(D) and flooding depth(H) in various flooding treatments.
年份 Year | 回归关系式 Regression equation | 标准化回归系数绝对值 Standardized regression coefficient absolute value | 相关系数 Correlation coefficients | F值 F value | |
---|---|---|---|---|---|
D | H | ||||
2017 | Ry=194.513−5.102D−133.397H | 0.244 | 0.922 | 0.95 | 60.99** |
2018 | Ry=162.499−3.730D−109.620H | 0.214 | 0.908 | 0.93 | 40.00** |
指标 Indicator | 关联系数 Correlation coefficient | 排序 Order |
---|---|---|
叶绿素b含量Chl b content | 0.6620 | 1 |
叶绿素a含量Chl a content | 0.6598 | 2 |
可溶性蛋白含量Soluble protein content(SP) | 0.6401 | 3 |
蒸腾速率Tr | 0.6321 | 4 |
气孔导度Gs | 0.6223 | 5 |
净光合速率Pn | 0.6169 | 6 |
可溶性糖含量Soluble sugar content(SS) | 0.4598 | 7 |
单穗干质量DWSE | 0.4562 | 8 |
根系SOD活性 Root SOD activity(R-SOD) | 0.4291 | 9 |
胞间CO2浓度Ci | 0.4280 | 10 |
根系MDA含量 Root MDA content(R-MDA) | 0.4191 | 11 |
剑叶SOD活性Flag leaf SOD activity(F-SOD) | 0.3960 | 12 |
根系POD活性Root POD activity(R-POD) | 0.3738 | 13 |
株高增长量Plant height growth(PHG) | 0.3179 | 14 |
第4节间长Length of the 4th internode(L4I) | 0.3154 | 15 |
剑叶MDA含量Flag leaf MDA content(F-MDA) | 0.3071 | 16 |
剑叶POD含量Flag leaf POD content(F-POD) | 0.2639 | 17 |
Table 6. Gray correlation analysis of actual yield with morphological and physiological index.
指标 Indicator | 关联系数 Correlation coefficient | 排序 Order |
---|---|---|
叶绿素b含量Chl b content | 0.6620 | 1 |
叶绿素a含量Chl a content | 0.6598 | 2 |
可溶性蛋白含量Soluble protein content(SP) | 0.6401 | 3 |
蒸腾速率Tr | 0.6321 | 4 |
气孔导度Gs | 0.6223 | 5 |
净光合速率Pn | 0.6169 | 6 |
可溶性糖含量Soluble sugar content(SS) | 0.4598 | 7 |
单穗干质量DWSE | 0.4562 | 8 |
根系SOD活性 Root SOD activity(R-SOD) | 0.4291 | 9 |
胞间CO2浓度Ci | 0.4280 | 10 |
根系MDA含量 Root MDA content(R-MDA) | 0.4191 | 11 |
剑叶SOD活性Flag leaf SOD activity(F-SOD) | 0.3960 | 12 |
根系POD活性Root POD activity(R-POD) | 0.3738 | 13 |
株高增长量Plant height growth(PHG) | 0.3179 | 14 |
第4节间长Length of the 4th internode(L4I) | 0.3154 | 15 |
剑叶MDA含量Flag leaf MDA content(F-MDA) | 0.3071 | 16 |
剑叶POD含量Flag leaf POD content(F-POD) | 0.2639 | 17 |
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