Modeling Embryo Development of Sitona discoideus Gyllenhal (Coleoptera: Curculionidae) Under Constant Temperature
Modeling Embryo Development of Sitona discoideus Gyllenhal (Coleoptera: Curculionidae) Under Constant Temperature
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DOI：
10.1603/0046-225x-37.6.1381
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发表时间：
2008-12-01
影响因子：
1.7
通讯作者：
Mcneill, Mark R.
中科院分区：
文献类型：
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作者：
Arbab, Abbas;Kontodimas, Dimitris C.;Mcneill, Mark R.
苜蓿根象鼻虫（siona discoideus）是苜蓿的重要害虫。采用10个模型（1个线性模型和9个非线性模型），在8.5 ~ 30℃范围内记录了8个恒温条件下的胚胎发育速率。28℃和8.5℃条件下，胚发育最短（8.5 d），最长（69 d）。利用线性回归估计阈值温度（To）和热常数(K)分别为4.7℃和207.7 DD。两个最有效的非线性模型，Lactin和Sharp和DeMichele，分别给出了T（min）和T（max）的估计，分别为4.4和3.9摄氏度，30.0和30.9摄氏度。该信息在预测盘状天蛾卵寄生蜂的适宜性和最佳释放时间方面具有潜在的应用价值。
The alfalfa root weevil, Sitona discoideus (Coleoptera: Curculionidae), is an important pest of alfalfa. The developmental rates of the embryo development were recorded at eight constant temperatures ranging from 8.5 to 30 degrees C. Using 10 models (1 linear and 9 nonlinear), we evaluated the relationship between constant temperature and developmental rate. Embryo development was shortest (8.5 d) and longest (69 d), at 28 and 8.5 degrees C, respectively. The threshold temperature (To) and the thermal constant (K) were estimated using linear regression to be 4.7 degrees C and 207.7 DD, respectively. The two most efficient nonlinear models, the Lactin and the Sharp and DeMichele, gave estimates of T(min) and T(max) of 4.4 and 3.9 and 30.0 and 30.9 degrees C, respectively. This information has potential application in predicting the suitability and optimal time of release of an egg parasitoid of S. discoideus.