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唐多1,王殿轩1*,姚剑锋2.不同温度和水分小麦中不同谷蠹发生状态时二氧化碳变化研究[J].植物保护,2011,37(5):67-71.

不同温度和水分小麦中不同谷蠹发生状态时二氧化碳变化研究

Concentration change of carbon dioxide in wheat plants infected with Rhyzopertha dominica under the conditions of different temperatures and moisture contents

DOI：

中文关键词: 谷蠹小麦温度水分二氧化碳

英文关键词:Rhyzopertha dominica wheat temperature moisture content carbon dioxide

基金项目:

作者	单位
唐多1,王殿轩1*,姚剑锋2	1. 河南工业大学粮油食品学院，粮食储藏与安全教育部工程研究中心，郑州450052 2. 中央储备粮襄垣直属库，襄垣046200

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中文摘要:

［目的］研究不同储藏温度、粮食含水量条件下，粮食、微生物、储粮害虫谷蠹与二氧化碳浓度变化的对应关系，以期为通过检测气体监测害虫发生提供参考依据。［方法］在20、25、30 ℃下检测含水量分别为12%、13%和14%的小麦样品感染谷蠹后不同时间的二氧化碳浓度，并与自然带菌无虫和灭菌无虫小麦进行比较。［结果］在前期30 d中，感染害虫（10头/kg）的小麦中二氧化碳浓度明显大于自然带菌和灭菌无虫样品，其中12%含水量，25 ℃感染害虫小麦中二氧化碳浓度最高达2.676%，自然带菌样品中为0.214%，灭菌样品中为0.148%。二氧化碳浓度随温度升高及粮食水分增大而显著升高。［结论］二氧化碳浓度与粮食中害虫发生状况显著相关，一定条件下可通过检测二氧化碳浓度了解储粮粮情和害虫发生状态。

英文摘要:

［Objective］ The relationships among wheat, microorganism, Rhyzopertha dominica (F.) and the concentration of CO2 at different storage temperatures and water contents of wheat were studied to provide a reference for predicting occurrence of pest by detecting CO2. ［Method］ The changes of carbon dioxide concentration in stored wheat that was infected by R. dominica were measured in 10 adults per kilogram, uninfected insects and sterilized grains under the conditions of 12%,13% and 14% moisture contents and 20 ℃, 25 ℃, and 30 ℃, respectively. ［Result］ The results showed that carbon dioxide in infected pest grains was significantly more than that in sterilized and uninfected cereals. At 25 ℃, the top level of carbon dioxide was 2.676% in the wheat infected by R. dominica at 12% moisture content, and 0.214% in the uninfected wheat and 0.148% in the sterilized cereal in 30 days. Carbon dioxide concentration was higher with the increase of moisture content and temperature. ［Conclusion］ There was a significant relationship between infection and carbon dioxide concentration. The results indicated that the occurrence of insect pests might be predicted by monitoring the carbon dioxide concentration in stored grains.

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