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Cold hardiness of three aphid species, Acyrthosiphon pisum, Megoura crassicauda and Aulacorthum solani (Hemiptera : Aphididae)

M. Asai ; H. Yoshida ; K. Honda ; H. Tsumuki | 2002

The cold hardiness of three aphid species, Acyrthosiphon pisum, Aulacorthum solani and Megoura crassicauda, was investigated using the active stages of holocyclic and anholocyclic clones. Although a progressive increase of supercooling points (S[...]

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Effects of leaf color, epicuticular wax amount and gramine content in barley hybrids on cereal aphid populations

S. Moharramipour ; H. Tsumuki ; K. Sato ; S. Murata ; K. Kanehisa | 1997

Using four marker genotypes of F-2 hybrids derived from crosses between aphid resistant and susceptible barley lines, the effects of leaf color, epicuticular wax and gramine indole alkaloid on aphid infestation were studied in natural population[...]

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Mapping resistance to cereal aphids in barley

S. Moharramipour ; H. Tsumuki ; K. Sato ; H. Yoshida | 1997

A set of 150 doubled-haploid (DH) barley (Hordeum vulgare L.) lines derived from the cross of Harrington/TR306 was used to determine the number and chromosomal location of quantitative trait loci (QTLs) controlling resistance to cereal aphids. T[...]

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