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Effect of Wheat Vernalization on Rhopalosiphum padi L. Survival 1
Author(s) -
Chen B. H.,
Foster J. E.,
Ohm H. W.
Publication year - 1983
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1983.0011183x002300060024x
Subject(s) - rhopalosiphum padi , biology , vernalization , agronomy , cultivar , aphid , russian wheat aphid , poaceae , fecundity , horticulture , aphididae , homoptera , population , pest analysis , photoperiodism , demography , sociology
Four wheats, three Triticum aestivum L. em. Thell. and one T. turgidum L., vernalized and nonvernalized, were evaluated for response by the bird‐cherry oat aphid, Rhopalosiphum padi L. Results showed that aphids on both vernalized and nonvernalized ‘Abe’ seedlings had better survival rates, higher fecundity, and more nymphs molting to adults than those of ‘Caldwell’ wheat seedlings. Abe was susceptible to R. padi and Caldwell had moderate resistance. Resistance rankings of these two cultivars were not affected by vernalization, whereas the rankings of‘Elmo’ and CI 17647 changed. Because the aphid performance on Elmo and CI 17647 seedlings was not consistent, these two wheats could not easily be classified as resistant or susceptible to R. padi .