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11 recherche sur le mot-clé 'polymorphism'
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article/chapitre/communication
J. Eisenbach ; T. Mittler | 1987article/chapitre/communication
1. Datura wrightii Regel (Solanaceae) is polymorphic with regard to trichome type. Some plants are densely covered with short, non-glandular trichomes, whereas other plants in the same populations possess glandular trichomes that excrete a stick[...]article/chapitre/communication
The lengths of the body and appendages of the aphid Acyrthosiphon pisum (Harris) (Homoptera: Aphididae) vary seasonally in sexual North American and asexual Australian populations. The first generation of spring aphids in North America and winte[...]article/chapitre/communication
R. Blackman | 1994A report is provided of a workshop at 4 th International Symposium on Aphids, where the decision was reached to recommend a major simplification of the terms used in papers on aphid biology, in order to make aphid work more accessible. It was co[...]article/chapitre/communication
P. Mackay | 1989article/chapitre/communication
Winged and wingless individuals of a pink clone of the pea aphid, Acyrthosiphon pisum (Harris), showed differences in the response curves for photoperiodic induction of both males and sexual females (oviparae). The critical night length (CNL) fo[...]article/chapitre/communication
J. Searle ; T. Mittler | 1981article/chapitre/communication
article/chapitre/communication
J. Cenis ; P. Perez ; A. Fereres | 1993article/chapitre/communication
M. Matsuka ; T. Mittler | 1979article/chapitre/communication