| 拔节期喷施二甲四氯对不同品种杂交谷生长的影响 |
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| 引用本文： | 董淑琦,原向阳,温银元,郭平毅,胡春艳,聂磊云,王婵.拔节期喷施二甲四氯对不同品种杂交谷生长的影响[J].安徽农业科学,2016,44(17). |
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| 作者姓名： | 董淑琦 原向阳 温银元 郭平毅 胡春艳 聂磊云 王婵 |
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| 作者单位： | 山西农业大学农学院,山西太谷,030801;山西省农业科学院果树研究所,山西太谷,030800 |
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| 基金项目： | 山西省科技重点研发(指南)项目(2015－TN－09)；山西农业大学引进人才博士科研启动费项目(2013YJ01)；山西农业大学科技创新基金项目(2014023)。 |
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| 摘 要： | 目的]分析喷施二甲四氯对不同品种杂交谷的生长是否有影响,为谷田除草剂的筛选提供试验依据。方法]采用完全随机设计,在谷子拔节期喷施推荐剂量二甲四氯,进行大田喷施试验,施药后30 d测定杂交谷子的形态指标(株高、叶长、叶宽、茎粗),生理指标(SOD酶活性、POD酶活性及MDA含量),光合作用参数(净光合速率Pn、蒸腾速率Tr)。结果]喷施二甲四氯对张杂3号的株高、叶长、茎粗均没有显著影响,对叶宽具有明显促进作用,对SOD酶活性、POD酶活性、MDA含量没有显著影响,但均有略微上升趋势,对净光合速率、蒸腾速率均有明显的促进作用;喷施二甲四氯对张杂12号形态指标均没有显著影响,但对茎粗有略微抑制作用,对SOD酶活性有明显的抑制作用,明显提高POD酶活性,对MDA含量没有显著影响,抑制了净光合速率,略微促进了蒸腾速率;喷施二甲四氯对张杂13号的株高、叶宽、茎粗均没有显著影响,但明显促进了叶长生长,对SOD酶活性具有明显的抑制作用,对POD酶活性和MDA含量均没有显著影响,但轻微抑制了POD酶活性。结论]喷施二甲四氯对张杂3号、张杂12号、张杂13号3个品种杂交谷的药害不明显,二甲四氯可以用于这3个品种杂交谷田除草。
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| 关 键 词： | 二甲四氯 酶活性 光合作用 形态指标 |
Effects of Different Varieties of Hybrid Foxtail Millets Growth by Spraying MCPA at Jointing Stage |
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| Abstract: | Objective] The aim was to analyze whether there was injury phenomenon by spraying MCPA on different varieties of hybrid foxtail millets growth ,to provide experimental basis for screening out herbicides .Method] It was using a completely randomized design.Recom-mended dose MCPA was sprayed in hybrid foxtail millet at jointing stage in field experiment.Shape indexes ( plant height, leaf length, leaf width and stem diameter), physiological indexes (SOD, POD and MDA) and photosynthetic parameters (Pn and Tr) were tested after spra-ying 30 days. Result] The results showed that plant height, leaf length and stem diameter of Zhangza 3 had no significant effect, but leaf width had obvious promoting effect.SOD activity, POD activity and MDA content had no significant effect, but showed a slight upward trend. Pn and Tr were promoted significantly.Morphological indexes of Zhangza 12 had no significant effect.It had obvious inhibitory effect on SOD activity and Pn index, promotion effect on POD activity and Tr index significantly.The plant height, stem diameter and leaf width of Zhangza 13 had no significant impact, but obviously promoted the growth of leaf length.It had obvious inhibitory effect on SOD activity and no signifi-cant effect on POD activity and MDA content, but slightly inhibited the POD activity.Conclusion] It shows that the MCPA could be used on three varieties of hybrid foxtail millet. |
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| Keywords: | MCPA Enzyme activity Photosynthesis Morphological index |
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