盐胁迫对2个不同盐敏感性水稻品种（系）叶片光合特性与产量的影响

荆培培,任红茹,杨洪建,戴其根

Effects of Saline Stress on Leaf Photosynthesis Characteristics and Grain Yield of Two Rice Cultivars (Lines)

Peipei Jing,Hongru Ren,Hongjian Yang,Qigen Dai

表1 盐胁迫对水稻产量及其构成因素的影响

Table 1 Effects of saline stress on grain yield and its components of rice

基因型 Genotype 盐浓度(%) Salt concentration 穗数 (×104/hm2) Spike number 穗粒数Spikelets per panicle 结实率(%) Seed-setting rate 千粒重(g) 1000-grain weight 2017年In 2017 2018年In 2018 产量(t/hm2) Yield 减产率(%) Yield decreased 产量(t/hm2) Yield 减产率(%) Yield decreased 武运粳30 0 315.7b 140.3a 91.1a 24.8a 9.88a - 10.12a - Wuyunjing 30 0.07 300.7ab 119.3b 87.3b 24.5a 7.41c 24.98 7.89cd 22.04 0.14 290.8c 104.5cd 85.9b 24.5a 6.27e 36.57 6.52e 35.57 0.21 243.9d 102.9cd 86.3b 24.3a 5.13g 48.06 5.36fg 47.04 0.28 228.4de 89.2e 85.9b 24.3a 4.22i 57.26 4.25h 58.00 0.35 195.7f 88.1e 85.2b 24.1a 3.57j 63.86 3.49i 65.51 振稻23309 0 313.1ab 120.3b 88.3ab 24.8a 8.06b - 8.42b - Zhendao 23309 0.07 329.9a 113.9bc 86.6b 24.5a 7.84b 2.73 8.21bc 2.49 0.14 301.4ab 113.2bc 87.0b 24.2a 6.88d 14.63 7.44d 11.64 0.21 315.3b 91.2d 86.0b 24.0a 5.59f 27.49 6.26e 25.65 0.28 292.1c 93.1d 83.2c 23.7ab 5.18g 31.35 5.54f 34.20 0.35 282.8c 89.5d 81.0c 23.5ab 4.63h 42.55 4.99g 40.74