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首页> 外文期刊>African Journal of Biotechnology >Discrimination of the Palomena prasina L. (Heteroptera: Pentatomidae) nymph stages and sex using some morphological parameters by the multiple regression analysis
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Discrimination of the Palomena prasina L. (Heteroptera: Pentatomidae) nymph stages and sex using some morphological parameters by the multiple regression analysis

机译：通过多元回归分析使用某些形态学参数区分Palomena prasina L.（Heteroptera：Pentatomidae）若虫的阶段和性别

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摘要

Discrimination of different nymphal stages and sex (male and female) of insects is important in the morphological, physiological and toxicological studies under laboratory and field conditions. The morphometric study of different parts of an insect’s body is needed to obtain an index to distinguish between different nymphal stages and sex. In the hazelnut production area of the Black Sea region, amongst the sucking type bugs the green shield bug (Palomena prasina?L.) is the most important specie encountered due to its intensity and economical damage threshold. The study was aimed to develop modeling of the?P. prasina?nymph stages and sex (NSS) using body length and prothorax width. Eight regression equations were compared for accuracy and adaptability. The best model developed was as follows: NSS = 0.344 + 0.235W + 0.309L (R2 = 0.9882), where NSS is nymph stages and sex, W?is theprothorax width (cm) and L is?the?body length (cm). For validation of the model, estimated values for NSS showed strong agreement with the measured values. Therefore, it?can be?concluded that models presented herein may be useful for the estimation of the individual NSS with a high degree of accuracy.
机译：在实验室和田间条件下，区分昆虫的不同若虫阶段和性别（雄性和雌性）在形态，生理和毒理学研究中很重要。需要对昆虫身体不同部位进行形态计量研究，以获取区分不同若虫阶段和性别的指数。在黑海地区的榛子产区，在吮吸型臭虫中，绿色盾形臭虫（Palomena prasina？L。）由于其强度和经济破坏阈值而成为最重要的物种。该研究旨在开发？P模型。 prasina？nymph分期和性别（NSS）使用体长和胸廓宽度。比较了八个回归方程的准确性和适应性。开发的最佳模型如下：NSS = 0.344 + 0.235W + 0.309L（R2 = 0.9882），其中NSS是若虫阶段和性别，W是胸廓宽度（cm），L是体长（cm）。 。为了验证模型，NSS的估计值与测量值显示出很强的一致性。因此，可以得出结论，本文介绍的模型可用于以较高的准确度估算各个NSS。

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