彭静,杨雪,罗梦娜,刘西平.喷施组合型生长调节剂对不同品种小麦冬前分蘖和生长及抗寒性的影响[J].干旱地区农业研究,2019,37(1):137~143
喷施组合型生长调节剂对不同品种小麦冬前分蘖和生长及抗寒性的影响
Effects of spraying a blended plant growth regulator on the tillering,growth, and the cold\|resistance of different wheat varieties
  
DOI:10.7606/j.issn.1000-7601.2019.01.19
中文关键词:  生长调节剂;冬小麦;冬前分蘖;生长  抗寒性;产量
英文关键词:plant growth regulator  winter wheat  tillering in the winter  growth  cold\|resistance  yield
基金项目:国家“863”科技计划(2013AA102902)
作者单位
彭静 Northwest A&F University, College of Life Science, Yangling, Shaanxi 712100, China 
杨雪 Northwest A&F University, College of Life Science, Yangling, Shaanxi 712100, China 
罗梦娜 Northwest A&F University, College of Life Science, Yangling, Shaanxi 712100, China 
刘西平 Northwest A&F University, College of Life Science, Yangling, Shaanxi 712100, China 
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中文摘要:
      采用大田随机区组试验,比较研究了一种已获得国家发明专利的组合型生长调节剂对不同冬小麦品种(西农979、西农889、郑州831和小偃22)冬前分蘖和生长以及抗寒性的影响。结果表明:在播种后一个半月喷施该生长调节剂能显著提高西农979、西农889及郑州831的冬前分蘖数和地上生物量,但对小偃22的分蘖数和生物量没有显著影响; 与未喷施生长调节剂的对照植株相比,在一年中最寒冷的时间,喷施生长调节剂的西农979叶片中叶绿素、类胡萝卜素、可溶性糖和淀粉、可溶性蛋白质和脯氨酸含量以及SOD和POD活性均显著提高,而丙二醛含量显著降低,但谷胱甘肽和抗坏血酸含量没有显著变化,表明喷施该组合型生长调节剂有助于提高西农979的抗寒性能;而对其余三个小麦品种而言,这些与植物抗寒性相关的生理生化指标未受到显著影响。对产量性状分析结果表明,喷施生长调节剂后,西农979、西农889和郑州831的单株成穗数分别提高了19.0%、17.8%和5.3%,单位面积产量分别提高了16.9%、16.2%和5.9%,但是小偃22的产量基本没有受到影响。说明该生长调节剂对不同品种冬小麦的冬前分蘖和生长、抗寒性及产量的效应不同,其中对西农979冬前分蘖和生长以及抗寒能力的提高、还有增产效果最明显,但对小偃22的效应不明显。
英文摘要:
      Effects of spraying a blended plant growth regulator, which had got the national invention patent, on the tillering, growth, cold\|resistance, and yield of different winter wheat varieties(Xinong 979, Xinong 889, Zhengzhou 831, and Xiaoyan 22) were compared in a field experiment. On the 45th day after sowing, the plant growth regulator was sprayed on the leaf surface. The results showed that the application of the blended plant growth regulator significantly improved the tillering in the winter and increased above\|ground biomass of Xinong 979, Xinong 889, and Zhengzhou 831 while only Xiaoyan22’s tiller number and biomass were not significantly affected. Meanwhile, the contents of chlorophyll, carotenoid, soluble sugar,starch, soluble protein,free proline, and the activities of SOD and POD in the leaves of Xinong 979 were increased sharply after spraying the plant growth regulator, whereas the content of MDA was significantly lower than that of the control, and glutathione and ascorbic acid contents were not impacted significantly. Hence, the cold\|resistance of Xinong 979 was enhanced. For the other three varieties, the physiological and biochemical parameters relating to the cold\|resistance were not impacted by the application of the plant growth regulator. In addition, the spike number per plant of Xinong 979, Xinong 889, and Zhengzhou831 were increased by 19.0%, 17.8%, and 5.3%, while the yield per hectare increased by 16.9%, 16.2%, and 5.9%, respectively, but the yield of Xiaoyan 22 was not affected. The results showed that effects of thegrowth regulator on the tillering and growth in the winter, the cold\|resistance, and yield varied with wheat varieties. For its application, Xinong 979 is the most suitable wheat variety based on increased tillers and growth in the winter as well as enhanced cold\|resistance and improved yield, but its effects on Xiaoyan 22 was negligible.
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