玉米象与锈赤扁谷盗在大米储藏中的种群竞争作用研究  

Population Competition of Sitophilus zeamais and Cryplotestes ferrugineusio in Stored Rice

作　　者：薛民杰 吕建华[2] 康宇龙 郭亚飞 XUE Min-jie(Beijing Branch of China Grain Reserve Management Group Co.,Ltd.,Beijing 100045)

机构地区：[1]中国储备粮管理集团有限公司北京分公司,北京100045 [2]河南工业大学粮油食品学院,河南郑州450001

出　　处：《农业灾害研究》2019年第4期15-17,21,共4页Journal of Agricultural Catastrophology

基　　金：河南省科技攻关项目(182102110111)

摘　　要：在温度为(28±2)℃、相对湿度为(75±5)%的条件下通过玉米象与锈赤扁谷盗在大米中的单独饲养和混合饲养试验,研究玉米象与锈赤扁谷盗在储藏大米中的种群竞争作用。结果表明,单独饲养与混合饲养的玉米象种群自然死亡率均在55%左右,2种饲养情况下的种群增长情况相似。混合饲养的锈赤扁谷盗种群的死亡率低于单独饲养的死亡率,种群增长数量高于单独饲养。混合饲养的锈赤扁谷盗种群的最低死亡率和平均死亡率较单独饲养时低,单独饲养时各个起始种群数量的锈赤扁谷盗种群数增长数均为0,而混合饲养时种群数不断增长。因此,在大米中混合饲养时,玉米象种群对锈赤扁谷盗种群的生存繁殖有促进作用,而锈赤扁谷盗种群对玉米象种群增长基本无影响。The population competition between Sitophilus zeamais and Cryplotestes ferrugineusio in rice were studied by the experiments of Sitophilus zeamais and Cryplotestes ferrugineus raisen separate or mixed populations at the condition of(28 ±2)℃,(75 ±5)% RH.The results showed that the mortality of Sitophilus zeamais in separate and mixed populations was about 55%,and the population growth situation was similar in separate or mixed populations. For Cryplotestes ferrugineus,the mixed population had a lower mortality and a better population growth situation than separate populations. The growth rate of separate Cryplotestes ferrugineus population was0,but population growth of mixed populations increased. The present results indicated that Sitophilus zeamais could improve the survival and reproduction of Cryplotestes ferrugineusio for mixed populations in rice,but Cryplotestes ferrugineusio had no effect on Sitophilus zeamais populations.

关 键 词：大米 种群竞争 玉米象 锈赤扁谷盗 

分 类 号：S379[农业科学—农产品加工]