人工模拟机械开沟穴直播提高早籼稻茎秆抗倒伏能力及产量

易艳红,王文霞,曾勇军,谭雪明,吴自明,陈雄飞,潘晓华,石庆华,曾研华

Artificial Simulation of Hill-Drop Drilling Mechanical Technology to Improve Yield and Lodging Resistance of Early Season Indica Rice

YanHong YI,WenXia WANG,YongJun ZENG,XueMing TAN,ZiMing WU,XiongFei CHEN,XiaoHua PAN,QingHua SHI,YanHua ZENG

表3 不同播种方式对节间干重、单位长度节间干重、单位体积节间干重的影响

Table 3 Effect of different sowing methods on dry weight of internode, dry weight per unit length of internode, and dry weight per unit volume of internode

年份 Year 品种 Variety 处理 Treatment 节间干重 DWI (g) 单位长度节间干重 DLI (mg·cm-1) 单位体积节间干重 DVI (mg·cm-3) I1 I2 I3 I1 I2 I3 I1 I2 I3 2017 中嘉早17 ZJZ17 MFP 0.256±0.041a 0.390±0.060a 0.480±0.018a 72.2±1.8a 39.2±3.6a 28.3±1.5a 265±21a 215±13a 226±13a SBP 0.151±0.016b 0.370±0.040a 0.336±0.021b 65.9±5.6ab 39.1±2.2a 19.7±5.0b 238±9b 212±5a 185±5b SCP 0.191±0.069ab 0.319±0.023b 0.347±0.033ab 54.7±9.2b 30.8±1.4b 20.6±3.6b 203±2c 185±8b 173±3b 株两优171 ZLY171 MFP 0.209±0.024a 0.361±0.062a 0.517±0.043a 25.9±2.8a 26.9±6.5a 22.6±1.3a 122±14a 166±15a 173±10a SBP 0.159±0.031b 0.348±0.046a 0.328±0.027c 21.4±5.0a 26±4.5a 16.4±0.8b 98±13b 158±5a 151±8b SCP 0.189±0.024a 0.352±0.050a 0.412±0.025b 22.8±1.9a 26.4±2.2a 19.2±4.2a 109±6ab 154±9a 157±9b 2018 中嘉早17 ZJZ17 MFP 0.247±0.021a 0.426±0.013a 0.473±0.024a 82.2±6.9a 35.9±1.1a 25.3±1.3a 295±25b 155±5a 124±6a SBP 0.208±0.011b 0.363±0.047b 0.365±0.035b 72.3±3.8a 34.4±4.5a 20.4±1.9b 274±14a 158±21a 122±11a SCP 0.186±0.017b 0.407±0.020a 0.373±0.045b 77.4±7.0a 35.2±1.8a 19.9±2.4b 275±25a 154±9a 109±13b 株两优171 ZLY171 MFP 0.213±0.015a 0.403±0.023a 0.457±0.006a 31.3±2.2a 30.8±1.7a 22.6±0.3a 131±9a 145±9a 149±2a SBP 0.223±0.006a 0.343±0.038b 0.350±0.017c 29.1±1.7a 27.1±3.0b 17.1±0.8c 119±3b 135±14a 143±7a SCP 0.200±0.010b 0.367±0.025ab 0.397±0.035b 27.1±1.4a 29.6±2.0ab 20.2±1.8b 113±5b 135±9a 140±12b F Value T 8.8** 3.1 64.1** 7.9** 1.7 25.9** 12.4** 4.5* 21.3** V 0.4 1.3 1.8 783.2** 50.45** 2.0 876.6** 70.7** 1.8 Y 4.2 4.0 0.1 35.0** 0.7 4.2 35.6** 86.8** 234.4** T×V 2.9 0.2 2.4 1.9 1.9 3.7* 2.5 1.1 4.3* T×Y 0.5 0.1 2.6 5.2* 2.6 0.8 13.2** 13.9** 98.0** V×Y 4.3* 1.6 2.8 1.7 2.2 2.3 1.2 1.7 7.5** T×V×Y 0.0 0.7 0.5 3.4 1.2 0.4 3.0 1.0 2.2