Premium
Selection for Yellow Clover Aphid and Pea Aphid Resistance in Red Clover 1
Author(s) -
Gorz H. J.,
Manglitz G. R.,
Haskins F. A.
Publication year - 1979
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/cropsci1979.0011183x001900020021x
Subject(s) - acyrthosiphon pisum , biology , aphid , aphididae , agronomy , germplasm , red clover , cultivar , resistance (ecology) , selection (genetic algorithm) , horticulture , homoptera , pest analysis , artificial intelligence , computer science
Most red clover ( Trifolium pratense L.) cultivars are susceptible to attack by the yellow clover aphid ( Therioaphis trifolii Monell) and the pea aphid ( Acyrthosiphon pisum Harris). Starting with 27 yellow clover aphidresistant plants selected from a wide diversity of germplasm, phenotypic recurrent selection was used to improve resistance to the two aphids. Through five cycles of testing and selection for yellow clover aphid resistance and three such cycles for pea aphid resistance, a synthetic, ‘N‐2’, was developed that had a high level of resistance to both aphids.