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Techniques in the Evaluation and Development of Host‐Plant Resistance
Author(s) -
Dahms R. G.
Publication year - 1972
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq1972.00472425000100030010x
Subject(s) - cultivar , biology , insect , germ plasm , resistance (ecology) , infestation , selection (genetic algorithm) , host (biology) , agronomy , grafting , botany , microbiology and biotechnology , horticulture , ecology , germ , computer science , chemistry , artificial intelligence , polymer , organic chemistry
A thorough knowledge of both insect and plant and their inter‐relationship is required to evaluate cultivars for insect resistance. Cultivars from all possible sources are obtained and subjected to an adequate and uniform insect infestation. Resistance may be measured by (i) visual observation, (ii) the effect of insects on plants, (iii) the effect of plants on insects, or (iv) indirect methods. Resistance may be transferred to usable cultivars by grafting, selection, or hybridization. Germ plasm obtained from a wide genetic base will help to insure a more permanent resistance.