Studies on phase-shifts in endogenous rhythms [PDF]
, 1967 Cultures of Drosophila pseudoobscura pupae raised in 12:12 hours L/D cycles were subjected to brief light pulses and light steps during early and late subjective night phases.1.
Chandrashekaran, M. K.
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Effect of altered photoperiodism (altered intensity and day length) on neuroendocrine function and ovarian maturation in an ocypod crab, Ocypoda macrocera [PDF]
, 1982 In marine invertebrates, light forms a significant external signal (' Zeitgeber', Aschoff, 1960) to control various reproductive activities (Segal, 1970).
Nadarajalingam, K
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Photoperiodic diapause under the control of circadian clock genes in an insect [PDF]
, 2010 Background Most organisms have evolved a circadian clock in order to anticipate daily environmental changes and many of these organisms are also capable of sophisticated measurement of daylength (photoperiodism) that is used to regulate seasonal events ...
Goto, Shin G +3 more
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Crop phenology literature review for corn, soybean, wheat, barley, sorghum, rice, cotton, and sunflower [PDF]
There are no author-identified significant results in this ...
Doraiswamy, P. C., Hodges, T.
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How farmers use agrobiodiversity to cope with climatic variability and community change [PDF]
, 2003 Small scale farmers commonly use agrobiodiversity as a way to maintain the quality of their livelihood. Agrobiodiversity practices are more frequent in tropical low input agriculture but are also present in Europe.
Reyniers, François +2 more
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Advanced Intelligent Systems, EarlyView.This study explores social immunity in gregarious locusts using a groundbreaking animal–robot–pathogen interaction model. By comparing locust responses to biomimetic agents mimicking healthy and infected individuals, significant behavioral changes are revealed.
Donato Romano, Cesare Stefanini
wiley +1 more source
Workshop and desk study to appraise technical difficulties associated with organic breeder flocks and organic hatching [PDF]
, 2003 BACKGROUND To date, Regulation (EC) 1804/1999 and UKROFS Standards allow conventionally produced day old chicks up to three days of age to be brought into systems of organic table chicken production.
Gordon, S
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Circadian Systems in Development and Photoperiodism in Japanese Quail. [PDF]
, 1983 Section I: The daily rhythm of plasma levels of adrenal corticol hormones (ACH) differed in phase and amplitude in Japanese quail of different ages and reproductive condition.
Russo, Albert C., Jr
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Biochemical studies of photoperiodism in plants [PDF]
, 1937 "Publication authorized October 2 ...
Murneek, A. E.
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, 2004 Temperate insects generally use day length as a reliable cue for long-term seasonal changes in their environment. Significant variation in photoperiodism between and within populations is thought to be associated with genetic variation resulting from ...
T. Boivin +3 more
semanticscholar +1 more source