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A plant which completes its life cycle (i.e. germinates, reproduces, and dies) within two years or growing seasons. Biennial plants usually form a basal rosette of leaves in the first year and then flower and fruit in the second year. bifid Forked; cut in two for about half its length. Compare trifid. bifoliate
Plant ecophysiology is concerned largely with two topics: mechanisms (how plants sense and respond to environmental change) and scaling or integration (how the responses to highly variable conditions—for example, gradients from full sunlight to 95% shade within tree canopies—are coordinated with one another), and how their collective effect on plant growth and gas exchange can be ...
Plant physiology encompasses all the internal chemical and physical activities of plants associated with life. [155] Chemicals obtained from the air, soil and water form the basis of all plant metabolism. The energy of sunlight, captured by oxygenic photosynthesis and released by cellular respiration, is the basis of almost all life.
Aristotle sought out the definition of "physis" to prove that there was more than one definition of "physis", and more than one way to interpret nature. "Though Aristotle retains the ancient sense of "physis" as growth, he insists that an adequate definition of "physis" requires the different perspectives of the four causes (aitia): material ...
Welwitschia is unique cone-bearing plant is not considered a conifer but belongs in the order Welwitschiales. Welwitschia mirabilis is often called a living fossil [4] and is the only species in its genus, which is the only genus in its family, which is the only family in its order. The male cones are on male plants, and female cones on female ...
For example, in green plants, the action spectrum resembles the absorption spectrum for chlorophylls and carotenoids with absorption peaks in violet-blue and red light. In red algae , the action spectrum is blue-green light, which allows these algae to use the blue end of the spectrum to grow in the deeper waters that filter out the longer ...
Physiology (/ ˌ f ɪ z i ˈ ɒ l ə dʒ i /; from Ancient Greek φύσις (phúsis) 'nature, origin' and -λογία () 'study of') [1] is the scientific study of functions and mechanisms in a living system.
Apophysis (spider), an outgrowth of the exoskeleton in spiders and other arachnids; In botany, an outgrowth or enlargement of an organ such as a plant stem; Apophysis (software), a fractal flame generating program for Microsoft Windows; Apophysis (geology), a discordant offshoot from another body, such as a sill, dike, or pluton