Heritability of the Resistance to Potato Leafhopper in Dry Bean

Authors

J.W. Gonzales, University of Nebraska-Lincoln
Dermot P. Coyne, University of Nebraska-LincolnFollow
Dale T. Lindgren, University of Nebraska-LincolnFollow
D. Schaaf, University of Nebraska-Lincoln
Kent M. Eskridge, University of Nebraska-LincolnFollow

Date of this Version

2004

Citation

HortScience, 39(7):1578-1580. 2004.

Comments

Copyright 2004 American Society for Horticultural Science. Used by Permission.

Abstract

The potato leafhopper (PLH), Empoasca fabae Harris is the most important Empoasca species attacking dry beans (Phaseolus vulgaris L.) in North America. The objective of this study was to determine the heritability (h²) of PLH injury based on parent-offspring regression analysis of F₃ means on individual F₂ plants derived from crosses of pinto 'Sierra' (resisant) x great northern 'Starlight' (susceptible), and black bean 'Tacarigua' (resistant) x 'Starlight' (susceptible). Low narrow-sense heritability values of 0.29 ± 0.06 ± 0.28 ± 0.10, respectively, were obtained for the above crosses. The low narrow-sense heritability estimates indicated large environmental effects on the expression of PLH injury in dry beans. An allergic test showed that both resistant parents possessed the same genes for resistance,