检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]南京人口管理干部学院,江苏南京210042 [2]安徽农业大学林学与园林学院
出 处:《安徽农业科学》2004年第6期1145-1146,共2页Journal of Anhui Agricultural Sciences
摘 要:美国白蛾是世界性检疫害虫 ,1997年前后传入安徽省芜湖市。经研究 ,其蛹重为 (0 .1696± 0 .0 197)g ,产卵量为 (5 44 .2±182 .2 )粒 ,雌蛹与产卵量的回归式y =-948+ 892 4.4x ,r1 =0 .85 4>r0 .0 1 =0 .5 3 7。卵的发育起点温度为 (11.5 5± 1.14 )℃ ,有效积温为 (92 .0 3± 12 .4)DD ,预测式为N =(92 .0 3± 12 .4) / [T -(11.5 5± 1.14 ) ]。经检验该结果与实际情况吻合。Hyphantria Cummea Drury,a quarantine pest all over the world, was spreaded into Wuhu City around 1977. The results from studies done showed that:①the pupa weight and oviposting amounts of the pest were (0.169?6±0.019?7)g and (544.2±182.2) pills respectively;②the regression equation indicating the relation between the female pupa weight and egg number was y=-948+8?924.4?x (r 1=0.854>r 0.01 = 0.537 ) ;③the initial temperature and effective accumulated temperature for egg development were (11.55±1.14)℃ and (92.03± 12.4 )DD orderly;④it was found that the expressing equation of relationship between the average temperature and incubation period was N=(92.03± 12.4 )/[T-(11.55±1.14)] .
分 类 号:S433.4[农业科学—农业昆虫与害虫防治]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.117