Résultat de la recherche
12 recherche sur le mot-clé
'photoperiod' 
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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[...]
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J. Searle ; T. Mittler | 1981
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R. Roche ; Marie-Hélène Jeuffroy ; B. Ney | 1999In pea, the time of flowering is mainly related to the photoperiod (P) and mean temperature (T-m) during the vegetative period. In field conditions, both variables depend mainly on the latitude (LAT) and the date of sowing (RDS). On the basis of[...]
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E. Gianoli ; H. Niemeyer | 1997The effects of temperature and photoperiod on accumulation of hydroxamic acids (Hx) in wheat (Triticum aestivum L.) seedlings were evaluated under laboratory conditions. Hx concentrations were significantly higher at higher temperatures. No such[...]
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R. Roche ; Marie-Hélène Jeuffroy ; B. Ney | 1999
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M. Matsuka ; T. Mittler | 1979
