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luke57173
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« on: December 09, 2011, 01:15:47 pm » |
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perennial annual biennial
Annual
annual life cycle with the length of that term nature of plants, biennial and perennial for the corresponding word. Within a year, germination, growth, flowering, seed, then plant the dead plants as annuals (annuals, annual plants). The term is also applied to plants other than higher plants, this time based on the formation of spores to the end of its life cycle. [Such as granular balloon algae (Botrydium gran-ulatum)]. Wintering in the form of higher plants as a standard. And that is the equivalent of summer annuals annuals C. Raunkiaer, and in winter as the center of the life cycle of one year life cycle is not known as biennial.
botanical terms, generally refers to a plant to complete life cycle of only a year's time. Note that some plants are annual in the north, while to the south become perennials, such as ricin. Annual herb is from seed germination, growth, flowering, seed to wilt die, the life span of only 1 to 2 years of herbaceous plants, such as rice and so on.
annuals is during the year, germination, growth, flowering and death of plants. Such plants are all herbs, it is also often referred to as herbaceous (plants).
annuals Although it is referred to as Shorter life expectancy may be only two or three months, it may be longer than one year. They use short and rapid growth during the storage lot of nutrients needed for flowering. Some species in the low latitudes are annual,Canada Goose Sale (http://www.cheapcanadagooseparkas.org), migrate to cooler high latitudes will become biennial.
to gardening point of view, the annuals are usually more open than the perennial flowers, so it is suitable for decorating colors for the garden. Sometimes gardeners will artificially force the natural environment is a biennial or perennial plants showing annual life cycle, in order to bloom more prosperous.
according to the different growing seasons, annuals can be divided into two categories:
summer type annual plant: the life cycle in the spring, summer and autumn between. Winter annuals
type: also known as winter plants, usually in late autumn germination, growth close to the ground in winter to the snow for asylum, a rapid snow melt in early spring flowering.
Biennial plant
biennial plant is a period of two years to complete its life cycle,Canada Goose Parkas (http://www.cheapcanadagooseparkas.org), part of the flowering plants. Usually germinate the first year will be completed, grow roots, stems and leaf growth stage, and sleep in the cold season. Very short period of stem, leaves close to the ground, was Aicong type. Vernalization in the winter and into next year after growth of the phenomenon of reproductive phase, the period of plant stems will quickly become long and thin, there bolting phenomenon. Flower and bear fruit and spread seeds are completed within one year, until death. Now known to be far less than the number of biennial plant perennials and annuals.
in extreme weather conditions, biennial plant may be in a very short time (for example, was only three to four months) to complete its life cycle. This situation is common in the year they have not experienced the growth stage, the direct result of cold weather and the phenomenon of birth and the vernalization flowering. This phenomenon makes a lot of people mistakenly believing that the biennial species, but is an annual plant. In addition to vernalization, but also some by adding plant hormones such as gibberellin, etc. to achieve fruition,Canada Goose Gloves (http://www.cheapcanadagooseparkas.org), but not common in commercial applications. Some perennials in harsh environments, shorter life cycle, but also be mistaken for biennial plants. Biennial plant, but only once in a lifetime once knot fruit, and perennials will bear fruit every year.
American carnation for a gardener, the plant life cycle and not only on its innate characteristics, but rather the cultivation of this plant for the purpose and location. Even the biennial plant, such as the cultivation of the plant's purpose is only to achieve its leaves and roots, then one year is sufficient, such as beets, Brussels sprouts, cabbage, carrots, celery, parsley and chard, etc. ; On the contrary, if the concept of flowers and plants to try it son, you should take two years.
Perennial
perennials is more than two years of plant life. As are all perennial woody plants, the term usually refers only to perennial herb, also known as perennial (plants), grass, etc. for many years.
perennials according to a variety of different weather patterns. In temperate regions, deciduous plants do not grow year round, known as the evergreen plants; seasonal changes in the area, plants grow and blossom in the warm season, in the winter, the woody plants will yellow fall foliage, as leaves plants, herbs are underground stems or roots to retain only part of sleep, known as the perennial grass. In addition, some areas of climate change is based on dry and wet season to divide the local plant will have different life cycles.
Although some plants
life for several years, but only bear fruit once in life, and then they wither killed as a single flowering plants such as agave and bamboo.
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