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首页> 外文期刊>Australian Journal of Crop Science >Mitigating chilling stress of pepper plant (Capsicum annuum L.) using Dimethyl Ether combustion gas in controlled greenhouse
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Mitigating chilling stress of pepper plant (Capsicum annuum L.) using Dimethyl Ether combustion gas in controlled greenhouse

机译：使用二甲醚燃烧气体在控制温室中减轻辣椒植物（辣椒Annuum L.）的冷凝胁迫

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In this study, the possibility of enhancing chilling stress tolerance of pepper plant (Capsicum annuum Linnaeus) during early growth stages was investigated using DME combustion gas in controlled greenhouse. The experiment was conducted to determine the performance of DME combustion gas when used as a fuel for DME burner for raising temperature and CO 2 concentration in greenhouse and also to examine its effects on morphology parameters of hot pepper in winter season. To analyze the relationship between the application of DME and morphology parameters of pepper plant, three treatments (DME-1, DME-2 and DME-3) for three controlled greenhouses were assayed. DME-1 and DME-2 treatments consisted of average DME flow quantity in duct were 17.4 m 3 /min and 10.2 m 3 /min, respectively to greenhouse-1 and greenhouse-2 and no DME gas was supplied to greenhouse-3 which was left as control (DME-3). Morphology parameters such as plant height, leaf area and leaf area index (LAI), net assimilation rate (NAR), relative growth rate (RGR), fresh weight and dry weight were measured for eight weeks for each treatment and analyzed using completely randomized designs through analysis of variance with a significance level of P < 0.05. Although DME-1, DME-2 and DME-3 received same crop management practices and controlled environmental factors, the highest changes (p < 0.05) of plant height, leaf area, LAI and fresh weight were found from the DME-1 treatment, followed by DME-2. A comparison of relative growth rates among the treatments indicated more rapid relative growth rate of morphology parameters at vegetative phase of plant implying better yield. Therefore endorsed quantify of DME combustion gas for a specified crop can be applied to greenhouse to improve the plant growth and enhance yield with mitigating chilling stress in winter season.
机译：在这项研究中，使用DME燃烧气体在受控温室中研究了在早期生长阶段加剧辣椒植物（辣椒anumum Linnaeus）的冷却胁迫耐受性的可能性。进行了实验以确定DME燃烧气体的性能，当用作DME燃烧器的燃料时，用于在温室中提高温度和CO 2浓度，并在冬季探讨其对辣椒形态参数的影响。为了分析辣椒植物的DME和形态学参数的应用，三种受控温室的三种处理（DME-1，DME-2和DME-3）进行测定。 DME-1和DME-2在管道中平均DME流量组成的治疗剂为17.4米3 / min，10.2米3 / min，分别为温室-1和温室-2，没有DME气体为温室-3留下控制（DME-3）。测量每个治疗的植物高度，叶面积和叶面积指数（LAI），净同化率（NAR），相对生长速率（RGR），新鲜的重量和干重，使用完全随机设计分析通过分析P <0.05的显着性水平的差异。虽然DME-1，DME-2和DME-3接收了相同的作物管理实践和受控环境因素，但从DME-1治疗中发现了植物高度，叶面积，赖和鲜重的最高变化（P <0.05），其次是DME-2。治疗中相对生长率的比较表明植物营养阶段的形态参数的相对生长速率暗示呈较好的产量。因此，对指定作物的DME燃烧气体的认可量化可以应用于温室，以改善冬季减轻寒冷胁迫的植物生长和增强产量。

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