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A Penetrometer to Quantify Leaf Toughness in Studies of Defoliators

 

作者: Roy C. Beckwith,   Austin E. Helmers,  

 

期刊: Environmental Entomology  （OUP Available online 1976）
卷期: Volume 5, issue 2  

页码: 291-294

 

ISSN:0046-225X

 

年代: 1976

 

DOI:10.1093/ee/5.2.291

 

出版商: Oxford University Press

 

数据来源: OUP

 

摘要:

An understanding of the physical characteristics of a leaf is necessary in feeding behavior studies of phytophagous insects. A penetrometer based on a strain gauge transducer, miniature lathe, and recorder readout was devised to measure leaf toughness. Details of its construction and use are reported.

 

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