Nutation (botany) flowers to open or close by movements which resemble the simple nutation of dorsiventral organs. Thus, the tulip, crocus, and other vernal flowers are very sensitive to changes in temperature. The crocus can perceive a change of 0.5°C (0.9°F), and will respond to a change of 20°C (36°F) in two minutes. Nutation (botany) Nutation is the bending movements executed by some plant organs, such as stems, leaves, roots, etc., by which the part is inclined successively in various directions. Nutations are due to the unequal rate of growth of different sides of the organ, an inequality which, so far as
Plant physiology plants in a water solution rather than soil, which has become a standard technique in biological research, teaching lab exercises, crop production and as a hobby. One of the leading journals in the field is "Plant Physiology", started in 1926. All its back issues are available online for free. Many other journals often carry plant physiology articles, including "Physiologia Plantarum", "Journal of Experimental Botany", "American Journal of Botany", "Annals of Botany", "Journal of Plant Nutrition" and "Proceedings of the National Academy of Sciences." In horticulture and agriculture along with food science, plant physiology is an important topic relating to fruits,