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NIGHT BREAKS. "If a long night is interrupted by a short (e.g. 30 min) period of light (or night break) near the middle, short day plants respond as if they have been exposed to an long day. For long day plants, such night breaks are only effective if given in combination with daylengths that are just longer than those needed to permit flowering or if they are of several hours duration." https://lnkd.in/d_f7kfY View in LinkedIn

SHORT DAYS "did not cause flowering if they were coupled with short nights but when the night was sufficiently long, flowering occurred even when the accompanying light periods were long. However, although a sufficiently long dark period appeared to be the decisive factor for flowering to occur, the level of flowering was also affected by the length of the light period." https://lnkd.in/d_f7kfY View in LinkedIn

TENEBROPERIOD VS PHOTOPERIOD. "The length of the day and night are mutually linked within the 24-h daily cycle. Photoperiodic responses could therefore be theoretically determined by either the length of the day or the length of the night. Classic experiments with short day plant Xanthium revealed that flowering only occurred if the night length was greater than 8.5 h, irrespective of the relative durations of light and darkness in the experimental cycle." (Tenebris, latin for darkness). https://lnkd.in/d_f7kfY View in LinkedIn

OBLIGATE AND FACULTATIVE. "Plants that respond to daylength can be further subdivided into obligate (or qualitative) types, where a particular daylength is essential for flowering, or facultative (or quantitative) types, where a particular daylength accelerates but is not essential for flowering." https://lnkd.in/d_f7kfY View in LinkedIn

PHOTOPERIODS TYPE PLANTS. "Short-day plants (SDPs) are those that flower or in which flowering is accelerated by days which are shorter than a critical daylength. Long-day plants (LDPs) are plants that flower or in which flowering is accelerated when the daylight period exceeds a critical daylength. Plants that flower at the same time irrespective of the photoperiodic conditions are called day-neutral plants (DNPs)." https://lnkd.in/d_f7kfY View in LinkedIn

TEMPERATURE NEUTRALITY. "A third characteristic of all circadian rhythms is temperature compensation; the period remains relatively constant over a range of ambient temperatures. This is thought to be one facet of a general mechanism that buffers the clock against changes in cellular metabolism." https://lnkd.in/d4JRQbh View in LinkedIn

MATHEMATICAL RULES from the Game of Life. "The relative low density of stable life (resulting when we start with pseudo-random primordial soup) is more than compensated for by the rich variety and symmetry of small Life forms." https://lnkd.in/dN_g3Fs View in LinkedIn

ENDOGENOUS RHYTHMS. "A second defining attribute of circadian rhythms is that they are endogenously generated and self-sustaining, so they persist under constant environmental conditions, typically constant light (or dark) and constant temperature. Under these controlled conditions, the organism is deprived of external time cues, and the free-running period of ∼24 h is observed." https://lnkd.in/d4JRQbh View in LinkedIn

COMPLEXITY FROM SIMPLICITY. "The mathematician John Conway has put theory into practice when he created the Game of Life in 1970. The huge interest for this game derives from its incredible power to create very complex objects from ridiculously simple rules and especially to the visual displays that are much more meaningful for us than dry equations, of course." https://lnkd.in/d3B2FKW View in LinkedIn

COMPETITIVE ADVANTAGE. "In wild type and in long– and short–circadian period mutants of Arabidopsis thaliana, plants with a clock period matched to the environment contain more chlorophyll, fix more carbon, grow faster, and survive better than plants with circadian periods differing from their environment. This explains why plants gain advantage from circadian control." https://lnkd.in/dXGrR6X View in LinkedIn