| 张园,田文仲,吴少辉,高海涛,张灿军.北方冬小麦品种（系）节水抗旱性研究[J].干旱地区农业研究,2017,35(2):9~13 |
| 北方冬小麦品种（系）节水抗旱性研究 |
| Study on drought resistance and water-saving capacity of winter wheat varieties (strains) in northern China |
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| DOI：10.7606/j.issn.1000-7601.2017.02.02 |
| 中文关键词: 北方冬小麦 抗旱指数 水分利用效率 冠层温度 |
| 英文关键词:winter wheat in northern China drought resistance index water use efficiency canopy temperature |
| 基金项目:国家小麦产业体系(CARS-E-2-36)；河南省小麦产业体系(S2010-10-02)；河南旱地小麦育种研究洛阳创新基地项目(2014-A2411-410307-A0109-001)；旱地小麦新品种新技术集成与示范项目 |
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| 中文摘要: |
| 本研究选取中国北方不同生态型冬小麦品种（系）进行产量、收获指数、WUE、抗旱指数、冠层温度等指标和一些农艺性状的测定与分析，以评价参试品种的节水抗旱性。随着灌水量的增加，参试品种的产量均有不同程度的增加，由于参试品种对水分的敏感度不同，产量增加幅度也不尽相同。充分灌溉、自然降水与干旱胁迫处理洛旱6号产量均最高，分别为6 316.20 kg·hm-2、2 538.75 kg·hm-2、1 119.75 kg·hm-2。充分灌溉处理周麦24对水分最为敏感，产量较自然降水处理增加44.12%；自然降水处理开麦20对水分最敏感，产量较干旱胁迫处理增加201.47%。通过产量、抗旱指数与灌浆期的冠层温度的相关性研究，发现产量与灌浆期的冠层温度呈极显著的负相关，与灌浆中期的冠层温度相关系数最高为-0.908。抗旱指数与灌浆后期的冠层温度呈极显著的负相关，相关系数-0.453，与灌浆前期和灌浆中期的冠层温度呈显著负相关，相关系数分别为-0.342、-0.366。 |
| 英文摘要: |
| Through the measurement and analysis of yield, harvest index, water use efficiency, drought resistance index, canopy temperature and some agronomic traits of winter wheat varieties (strains) with different ecotypes in northern China, their drought resistance and water-saving capacity was evaluated. With the increase of irrigation amount, the yield of tested varieties was wholly increased. Since the sensitivity of different varieties to water was varied, the increase extend of yield was also different each other. Under the treatments of full irrigation, natural precipitation and drought stress, the yield of Luohan 6 was invariably the highest, being 6 316.20 kg·hm-2, 2 538.75 kg·hm-2 and 1 119.75 kg·hm-2, respectively. Under the treatment of full irrigation, Zhoumai 24 was most sensitive to water, whose yield was increased by 44.12% compared with that under natural precipitation; under the treatment of natural precipitation, Kaimai 20 was most sensitive to water, whose yield was increased by 201.47% compared with that under drought stress. Through the correlation analysis among yield, drought resistance index and canopy temperature at filling stage, it was found that there was a negative correlation at extremely significant level between yield and canopy temperature at filling stage, and the highest correlation coefficient at middle filling stage was -0.908. Drought resistance index was negatively correlated with canopy temperature at late filling stage at extremely significant level, and the correlation coefficient was -0.453; it was negatively correlated with canopy temperature at early and middle filling stage at significant level, and the correlation coefficient was -0.342 and -0.366, respectively. |
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