大环内酯类和高表达玉米C4-PEPC基因对水稻耐旱性的影响
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宋凝曦, 李霞, 王净, 吴博晗, 曹悦, 杨杰, 谢寅峰
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Effects on drought tolerance by pladienolide B and rice with high expression of C4-PEPC
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SONG Ni-Xi, LI Xia, WANG Jin, WU Bo-Han, CAO Yue, YANG Jie, XIE Yin-Feng
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表2 孕穗期外施PB联合干旱处理对水稻产量及其构成因子的影响
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Table 2 Effects of spraying PB at booting stage combined with drought treatment on agronomic traits in rice lines
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性状
Trait | 转玉米C4-PEPC水稻 C4-PEPC rice (PC) | Kitaake (WT) | | CK | CK+PB | DS | DS+PB | CK | CK+PB | DS | DS+PB | 株高
Plant height (cm) | 87.67 a
100.00% | 84.32 a 96.18% | 79.03 b 90.14% | 67.83 c 77.37% | 87.38 a 100.00% | 85.33 a
97.65% | 72.35 bc 82.80% | 52.62 d 60.22% | 最大分蘖数
The largest tiller number per plant | 10.73 b
100.00% | 9.79 b
91.24% | 8.66 c
80.71% | 8.29 c 77.26% | 13.97 a 100.00% | 12.22 a
87.47% | 8.23 c 58.91% | 7.19 d
51.47% | 每株总穗数
Panicle number per plant | 9.33 b
100.00% | 9.18 b
98.39% | 6.33 c 67.85% | 5.74 d 61.52% | 11.04 a 100.00% | 10.57 ab 95.74% | 6.29 c 56.97% | 5.33 d
48.28% | 穗长
Panicle length (cm) | 13.35 a
100.00% | 12.47 a 93.41% | 11.04 b 82.70% | 8.63 d 64.64% | 11.67 ab 100.00% | 11.40 ab
97.69% | 10.75 c 92.12% | 7.67 d
65.72% | 每穗总粒数
Total grain number per panicle | 37.61 a
100.00% | 38.47 a 102.29% | 33.63 b 89.42% | 28.58 c 75.99% | 37.33 a 100.00% | 35.87 a
96.09% | 28.83 c 77.23% | 27.33 c 73.21% | 每穗实粒数
Filled grain number per panicle | 33.48 ab 100.00% | 32.87 ab 98.18% | 24.58 c 73.42% | 19.33 d 57.74% | 31.04 b 100.00% | 30.12 b
97.04% | 21.38 d 68.88% | 18.65 d 60.08% | 结实率
Gain filling ratio (%) | 89.34 a
100.00% | 85.44 a 95.63% | 80.24 c 89.81% | 69.14 e 77.39% | 83.24 bc 100.00% | 83.97 b 100.88% | 74.01 d 88.91% | 68.32 e 82.08% | 千粒重
1000-grain weight (g) | 25.74 a
100.00% | 24.87 a 96.62% | 23.38 b 90.83% | 19.95 c 77.51% | 25.30 a 100.00% | 23.84 ab 94.23% | 20.74 c 81.98% | 17.87 d 70.63% | 每株叶干重
Leaf weight per plant (g) | 3.76 a
100.00% | 3.87 a 102.93% | 2.53 c 67.29% | 2.45 c 65.16% | 3.56 b 100.00% | 3.47 b
97.47% | 2.29 c 64.33% | 2.03 d 57.02% | 每株茎干重
Stem weight per plant (g) | 2.93 a
100.00% | 2.85 a 97.27% | 1.23 b 41.98% | 0.73 c 24.91% | 2.59 a 100.00% | 2.44 a
94.21% | 1.51 b 58.30% | 0.81 c 31.27% | 每株穗干重
Panicle weight per plant (g) | 6.77 a
100.00% | 6.59 a 97.34% | 4.95 c 73.12% | 2.47 e 36.48% | 6.19 b 100.00% | 5.93 b
95.80% | 4.12 d 66.56% | 2.14 f 34.57% | 总干重
Total dry weight per plant (g) | 13.46 a 100.00% | 13.31 a 98.89% | 8.71 c 64.71% | 5.65 d 41.98% | 12.34 b 100.00% | 11.84 b 95.95% | 7.52 c 60.94% | 4.98 e 40.36% | 单株产量
Yield per plant (g) | 4.13 a
100.00% | 4.05 a 98.06% | 2.83 c 68.52% | 2.54 d 61.50% | 3.82 b 100.00% | 3.71 b
97.12% | 2.06 e 53.93% | 1.71 f 44.76% |
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