Short Day Plant Adalah
Short Day Plant Adalah
A plant’south nomenclature every bit a long-day or a curt-24-hour interval species is determined past photoperiodism, a term for the amount of daylight or darkness needed for plants to grow, blossom or modify colour. Photoperiodism is the reason that many plants placed in the garden at unlike times all flower within a few days of 1 another. Photoperiodism affects many vegetable plants likewise as flowering plants.
Description of Photoperiodism
Photoperiodism was discovered in 1920 during tests on tobacco plants. The tests revealed that plants responded to light and darkness in very unlike means. The misconception was that plants performed ameliorate with more exposure to light. However, the tests proved that information technology was the corporeality of darkness that adamant when the plants bloomed and how many blooms were produced. Some plants performed amend when they were exposed to longer periods of darkness. These plants are known every bit short-day plants. Plants that did better with fewer hours of darkness are known as long-solar day plants. Further research determined that there were plants that did not respond differently to the length of darkness. These plants are known as day-neutral plants.
Short-mean solar day plants are those plants that flower when they are exposed to long periods of darkness and short periods of light. For a short-solar day plant to bloom, there must be less than 12 hours of daylight. The plants that flower in the spring or later in the fall are considered brusk-24-hour interval plants. Kalanchoe (Kalanchoe spp.) and Salvia (Salvia spp.) are two short-day plants that require at to the lowest degree 12 hours of darkness to bloom in the garden. Dark-green onions (Allium cepa L.) and soybean (Glycine max) are ii common short-day vegetables. In that location are short-twenty-four hours varieties of strawberries, such equally Fragaria ananassa ‘Camarosa’ and other fruits, equally well.
Long-day plants require less darkness to generate the reaction needed for production. These plants need about viii hours of darkness to beginning flowering. The long-day flowers that grow well in the home garden are lettuce (Lactuca sativa), spinach (Spinacia oleracea) and petunias (Petunia x hybrida). Lettuce is classified as a long-day plant because it is during the long days of summertime that the constitute flowers, or bolts. A characteristic of some long-solar day plants, such equally potatoes (Solanum tuberosum), is the germination of bulbs and tubers.
Day-neutral plants exercise not depend upon the amount of darkness or daylight hours. These plants reply to the aging process. Equally the found matures, the bloom blooms or the plant flowers and sets fruit. Sunflowers (Helianthus annuus) and peas (Pisum sativum) are considered twenty-four hour period-neutral. Some other popular establish that is 24-hour interval-neutral is the tomato found (Love apple).
Quantitative and Qualitative Plants
Within each group of long- or curt-day plants there is some other division that puts some plants into ii smaller groups: qualitative or quantitative plants. These are plants that require a certain number of nights or days to perform a specific chore. For instance, poinsettias (Euphorbia pulcherrima) require a set up number of nighttime hours to have the bracts turn red. This is known as a qualitative constitute. A quantitative plant will blossom or set up fruit whether or not the light and dark hours are reached. Even so, the plant performs best when exposed to a gear up number daylight hours. For instance, rye (Secale cereale) does well, simply produces more than seed when exposed to long days.