| 摘要: |
| 【目的】探索花生产量性状与冠层温度的关系，为高产花生品种选育和大田栽培提供参考依据。【方法】以我国北方大花生为材料，自花生结荚到收获，应用红外测温仪对12个大花生品种不同生育时期（结荚后0，9，19，28，38和47 d）的冠层温度进行观测，并于收获后调查单株结果数、饱果率、百果质量和总产量，对花生产量性状与冠层温度的关系进行分析。【结果】花生不同生育时期的冠层温度总体差异极显著（P<0.01）；单株结果数与不同生育时期的冠层温度相关均不显著（P>0.05）；饱果率与结荚后0，9，28和38 d的冠层温度呈显著负相关（P<0.05）；百果质量和产量除与结荚后19 d冠层温度相关不显著（P>0.05）外，与其他生育时期的冠层温度均显著负相关（P<0.05）；在一定范围内，冠层温度每升高1 ℃，花生产量减少225.8～393.2 kg/hm2。【结论】花生产量性状与冠层温度密切相关，冠层温度可作为一个重要指标用于指导花生育种、栽培等生产实践。 |
| 关键词: 花生 产量性状 冠层温度 育种 |
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| 基金项目:河南省教育厅科学技术研究重点项目（14A210014）；国家自然科学基金项目（30370859）；南阳师范学院博士科研启动基金项目；南阳师范学院大学生实践教学活动创新项目（ZB-2013-220） |
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| Relationships between yield characteristics and canopy temperature of peanut |
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REN Xue-min,ZHU Ya,WANG Xiao-li,et al
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| Abstract: |
| 【Objective】This study aimed to explore the relationships between yield characteristics and canopy temperature of peanut.【Method】Canopy temperatures of 12 large peanut varieties at different growth stages (0,9,19,28,38 and 47 d after pod setting) were observed with an infrared radiation thermometer from pod setting to harvesting time.After harvest,yield characteristics including number of pods per plant (NP),full pod percentage (FP),weight per 100 pods (WP) and total yield were surveyed,and the ralationships between yield characteristics and canopy teperature was analyzed.【Result】Overall differences among peanut canopy temperatures at different growth stages were extremely significant (P<0.01).There was no significant correlation relationship (P>0.05) between NP and canopy temperatures at all growth stages.FP was significantly and negatively correlated (P<0.05) with canopy temperatures 0,9,28 and 38 d after pod setting.Both WP and yield existed significant and negative correlation (P<0.05) with canopy temperatures at all growth stages except for 19 d after pod setting.Within a certain range,1 ℃ increase of canopy temperature decreased the yield by 225.8－393.2 kg/hm2.【Conclusion】Yield characteristics of peanut were closely associated with canopy temperature.Thus canopy temperature can be used as an important indicator to guide production practices of peanut. |
| Key words: peanut yield characteristics canopy temperature peanut breeding |
