摘要
在室外自然条件下用无芒雀麦（Ｂｒｏｍｕｓｉｎｅｒｍｉｓ）叶片饲喂狭翅雏蝗Ｃｈｏｒｔｈｉｐｐｕｓｄｕｂｉｕｓ（Ｚｕｂｏｖｓｋｙ）Ｕｖｒｏｖ，分别以直线回归法和直接最优法计算发育起点温度和有效积温，并与实际发生情况作了初步验证。全蝗蝻期发育起点温度为９．１７℃（直线回归法）或９．４１℃（直接最优法），有效积温为１９０．７０日度（直线回归法）或１７５．４４日度（直接最优法）。测定结果直接最优法计算结果较直线回归法更切合实际。
The linear regression and direct optimum methods in both were adopted by us to calculate the developmental zero, i.e., the starting temperature, and the effectively accumulative temperatures of the locust species,Chorthippus dubius (Zubovsky) Uvrov reared with Bromegrass,Bromus inermis under field condition. The developmental zero of the insect nymph stage was 9.17℃ indicated by linear regression method & 9.41℃ by direct optimum method;the effectively accumulative temperatures were 190.70 day degrees indicated by linear regression method and 175.44 day-degrees by direct optimum method as well. The results indicated that the calculated results shown by the direct optimum method is somewhat better than any those calculated by the linear regression method, more or less.
出处
《四川草原》
1997年第4期49-51,54,共4页
Journal of Sichuan Grassland
基金
农业部"八五"重点科研项目
关键词
狭翅雏蝗
发育起点温度
有效积温
防治
Chorthippus dubius, development zero,effectively accumulative temperatures
