Molecular genetic approaches to plant development
... meristematic cell is not dependent on its lineage. There doesn't seem to be a precise relationship between a cell's position in the meristem and its fate. The first six leaves of an Arabidopsis plant are derived from most of the cells that make up a meristem. This suggests that the remainder of the ...
... meristematic cell is not dependent on its lineage. There doesn't seem to be a precise relationship between a cell's position in the meristem and its fate. The first six leaves of an Arabidopsis plant are derived from most of the cells that make up a meristem. This suggests that the remainder of the ...
Evolution By Artificial Selection and Unraveling the Mysteries of
... experience consistently greater reproductive success (i.e., leave more offspring) than do other variants. Generally, within a population of organisms (of the same species), there is variation among individuals for a great variety of obvious and not so obvious traits. Some of this variability is a re ...
... experience consistently greater reproductive success (i.e., leave more offspring) than do other variants. Generally, within a population of organisms (of the same species), there is variation among individuals for a great variety of obvious and not so obvious traits. Some of this variability is a re ...
year 3 - Tollgate Teaching Alliance
... Pupils should be introduced to the relationship between structure and function: the idea that every part has a job to do. They should explore questions that focus on the role of the roots and stem in nutrition and support, leaves for nutrition and flowers for reproduction. Note: Pupils can be introd ...
... Pupils should be introduced to the relationship between structure and function: the idea that every part has a job to do. They should explore questions that focus on the role of the roots and stem in nutrition and support, leaves for nutrition and flowers for reproduction. Note: Pupils can be introd ...
a. YOUNG PLANT WITH BEGINNINGS OF ROOTS, STEM, LEAVES
... http://www.harcourtschool.com/glossary/science/images/gr5/phloem_xylem5.jpg http://www.phschool.com/science/biology_place/labbench/lab9/images/xylem.gif http://universe-review.ca/I10-22a-xylem.jpg http://www.park.edu/bhoffman/courses/bi225/images/xylem.jpg http://www.botany.hawaii.edu/faculty/webb/ ...
... http://www.harcourtschool.com/glossary/science/images/gr5/phloem_xylem5.jpg http://www.phschool.com/science/biology_place/labbench/lab9/images/xylem.gif http://universe-review.ca/I10-22a-xylem.jpg http://www.park.edu/bhoffman/courses/bi225/images/xylem.jpg http://www.botany.hawaii.edu/faculty/webb/ ...
Focus in Action Learning Pack
... Osmosis is a particular type of diffusion in which only some of the particles are allowed to pass through a barrier. This barrier is called a differentially permeable membrane. Osmosis is the diffusion of water through a differentially permeable membrane. Capillary action – where the water particles ...
... Osmosis is a particular type of diffusion in which only some of the particles are allowed to pass through a barrier. This barrier is called a differentially permeable membrane. Osmosis is the diffusion of water through a differentially permeable membrane. Capillary action – where the water particles ...
PLANTAIN FHIA-21
... Young shoots have to be removed every 8 weeks. The removal of “sister shoots” should be done 4 months after planting. Once all flowers have appeared, it is necessary to remove a number of hands, leaving only 5 per bunch if the fruits are meant for export, and up to 7 hands if the product is to be pr ...
... Young shoots have to be removed every 8 weeks. The removal of “sister shoots” should be done 4 months after planting. Once all flowers have appeared, it is necessary to remove a number of hands, leaving only 5 per bunch if the fruits are meant for export, and up to 7 hands if the product is to be pr ...
Why does salinity pose such a difficult problem for plant breeders?
... Halophytes must balance their requirement for the salts needed for osmotic adjustment with their growth rate (Flowers and Yeo, 1986). Regulating transpiration plays an important part in this process, as it is the transpiration stream that carries ions between root and shoot. Consequently, factors th ...
... Halophytes must balance their requirement for the salts needed for osmotic adjustment with their growth rate (Flowers and Yeo, 1986). Regulating transpiration plays an important part in this process, as it is the transpiration stream that carries ions between root and shoot. Consequently, factors th ...
Plant Field Guide
... REPRODUCTION: Like other members of this family, the flowers are different sexes, small and greenish. The developed fruits form flattened discs. The plants are pollinated by the wind. ADAPTATION TO SALT: Saltbush does not grow in the lower areas of the salt marsh, but it is tolerant of salt because ...
... REPRODUCTION: Like other members of this family, the flowers are different sexes, small and greenish. The developed fruits form flattened discs. The plants are pollinated by the wind. ADAPTATION TO SALT: Saltbush does not grow in the lower areas of the salt marsh, but it is tolerant of salt because ...
Chapter 22 Plant Structure and Function
... meristem, is related to a summer job you might have had–mowing grass. This meristem is found in one or more locations along the stems of many monocots. Intercalary meri-stem produces new cells that result in an increase in stem or leaf length. If grasses only had apical meri-stems, they would stop g ...
... meristem, is related to a summer job you might have had–mowing grass. This meristem is found in one or more locations along the stems of many monocots. Intercalary meri-stem produces new cells that result in an increase in stem or leaf length. If grasses only had apical meri-stems, they would stop g ...
Fl. China 11: 77–79. 2008. 13. SKIMMIA Thunberg, Nov. Gen. Pl. 3
... distinct, rudimentary in female flowers. Disk annular or pulvinate. Gynoecium 2–5-loculed, syncarpous, rudimentary in male flowers; ovules 1(or ?2) per locule; style short or ± as long as ovary. Fruit a fleshy drupaceous berry, with 1–5 1-seeded leathery pyrenes. Seeds ovoid to ellipsoid; seed coat ...
... distinct, rudimentary in female flowers. Disk annular or pulvinate. Gynoecium 2–5-loculed, syncarpous, rudimentary in male flowers; ovules 1(or ?2) per locule; style short or ± as long as ovary. Fruit a fleshy drupaceous berry, with 1–5 1-seeded leathery pyrenes. Seeds ovoid to ellipsoid; seed coat ...
Kaleidoscope Abelia
... Kaleidoscope Abelia is a multi-stemmed evergreen shrub with a mounded form. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition. This shrub will require occasional maintenance and upkeep, and should only be pr ...
... Kaleidoscope Abelia is a multi-stemmed evergreen shrub with a mounded form. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition. This shrub will require occasional maintenance and upkeep, and should only be pr ...
Orchid Express - Smithsonian Gardens
... fungi in order to help the plant obtain nutrients. Growing orchids in greenhouses takes many years to bloom and divide for sale. The correct growing media and conditions are crucial to success. Tissue culture, or cloning, produces large numbers of genetically identical disease and virus free plants ...
... fungi in order to help the plant obtain nutrients. Growing orchids in greenhouses takes many years to bloom and divide for sale. The correct growing media and conditions are crucial to success. Tissue culture, or cloning, produces large numbers of genetically identical disease and virus free plants ...
Trainer`s Notes - Pathfinder Honours
... REQUIREMENT 9: Make a collection of thirty different kinds of seeds, twenty of which you have collected yourself. Label each kind with its name, the date collected, and locality, and the collector. You may glue them on heavy paper or cardboard or put them in clear vials. Seeds are all around us. We ...
... REQUIREMENT 9: Make a collection of thirty different kinds of seeds, twenty of which you have collected yourself. Label each kind with its name, the date collected, and locality, and the collector. You may glue them on heavy paper or cardboard or put them in clear vials. Seeds are all around us. We ...
Chapter-12
... By asexual reproduction, one parent alone transmits its genetic information to offspring By sexual reproduction, offspring typically inherit information from two parents that differ in their ...
... By asexual reproduction, one parent alone transmits its genetic information to offspring By sexual reproduction, offspring typically inherit information from two parents that differ in their ...
Noxious Weeds - Le Sueur County
... Do not confuse with native Cow Parsnip (Heracleum maximum) Monocarpic perennial (produces seed once then dies); rosette first year (or more) then bolts, producing stems that reach heights of 10 – 15 ft. Stout hollow stems and leaf stalks that are spotted purple/red and contain sturdy white bristles ...
... Do not confuse with native Cow Parsnip (Heracleum maximum) Monocarpic perennial (produces seed once then dies); rosette first year (or more) then bolts, producing stems that reach heights of 10 – 15 ft. Stout hollow stems and leaf stalks that are spotted purple/red and contain sturdy white bristles ...
ECHOcommunity.org
... new growth from root tubers, gac can be grown in areas with dry or cold seasons, as long as the growing season is long enough to form fruit. Gac can be propagated by seed, vine cuttings or root tubers. Seed can be destroyed with high heat, so avoid seeds from arils that have been dried at high tempe ...
... new growth from root tubers, gac can be grown in areas with dry or cold seasons, as long as the growing season is long enough to form fruit. Gac can be propagated by seed, vine cuttings or root tubers. Seed can be destroyed with high heat, so avoid seeds from arils that have been dried at high tempe ...
morphology and anatomy of tropical flowers
... The sexual reproduction of Angiospermae (Magnoliophyta) occurs in the flower. The Angiospermae flower (Figure 1A,B) presents leaves with different forms, sizes, colors, number and disposition. The flower can be considered as a shoot with modified leaves. The floral leaves are arranged in stem axis i ...
... The sexual reproduction of Angiospermae (Magnoliophyta) occurs in the flower. The Angiospermae flower (Figure 1A,B) presents leaves with different forms, sizes, colors, number and disposition. The flower can be considered as a shoot with modified leaves. The floral leaves are arranged in stem axis i ...
IMPORTANCE OF INSECT PESTS, DISEASES, WEEDS AND DISORDERS IN SEED PRODUCTION
... Since the beginning of agriculture almost 10,000 yrs ago, farmers/growers had to compete with harmful organisms. These include organisms such as pests, pathogens and Weeds. The pests include mites, aphids, nematodes, rodents, birds, slugs and snails whereas plant pathogens include fungi, bacteria an ...
... Since the beginning of agriculture almost 10,000 yrs ago, farmers/growers had to compete with harmful organisms. These include organisms such as pests, pathogens and Weeds. The pests include mites, aphids, nematodes, rodents, birds, slugs and snails whereas plant pathogens include fungi, bacteria an ...
Plants for Food and Fibre Plants for Food and Fibre
... for centuries. In fact, you are probably wearing at least one garment made from cotton right now. Cotton is even used for spacesuits. Cotton fibres are different from synthetic fibres in that cotton absorbs moisture and then allows it to evaporate easily. Cotton is currently the world’s most importa ...
... for centuries. In fact, you are probably wearing at least one garment made from cotton right now. Cotton is even used for spacesuits. Cotton fibres are different from synthetic fibres in that cotton absorbs moisture and then allows it to evaporate easily. Cotton is currently the world’s most importa ...
Perennial Centaurea for the garden
... Centaurea macrocephala has perhaps one of the most iconic flowers of the genus. The large globular yellow flowers resemble a giant thistle or cardoon flower. The buds are deep bronze and attractive in their own right. The branched stems carry flowers for only a short period in mid summer and unlike ...
... Centaurea macrocephala has perhaps one of the most iconic flowers of the genus. The large globular yellow flowers resemble a giant thistle or cardoon flower. The buds are deep bronze and attractive in their own right. The branched stems carry flowers for only a short period in mid summer and unlike ...
SRP Plant ID Guide
... Description: The Balsam Fir is a small to medium sized native evergreen tree. Known for its dark green color this is a popular Christmas Tree. The Balsam fir has a wide base and a narrow top with horizontal branches. It can grow to be 40 to 80 feet tall. It is most commonly found in moist soils, sha ...
... Description: The Balsam Fir is a small to medium sized native evergreen tree. Known for its dark green color this is a popular Christmas Tree. The Balsam fir has a wide base and a narrow top with horizontal branches. It can grow to be 40 to 80 feet tall. It is most commonly found in moist soils, sha ...
25 | seedless plants
... The ancestors to the green algae became photosynthetic by endosymbiosing a green, photosynthetic bacterium about 1.65 billion years ago. That algal line evolved into the Charophytes, and eventually into the modern mosses, ferns, gymnosperms, and angiosperms. Their evolutionary trajectory was relativ ...
... The ancestors to the green algae became photosynthetic by endosymbiosing a green, photosynthetic bacterium about 1.65 billion years ago. That algal line evolved into the Charophytes, and eventually into the modern mosses, ferns, gymnosperms, and angiosperms. Their evolutionary trajectory was relativ ...
Scaphispatha gracilis
... Rondonia states (Northwestern Brazil) that may belong to this species. It occurs along forest edges and rock outcrops, usually in moderately disturbed areas. Flowering and fruiting events in the wild are hard to observe and seem to be much faster than in other closely related genera growing in the s ...
... Rondonia states (Northwestern Brazil) that may belong to this species. It occurs along forest edges and rock outcrops, usually in moderately disturbed areas. Flowering and fruiting events in the wild are hard to observe and seem to be much faster than in other closely related genera growing in the s ...
full text pdf
... the seeds develop, are mature and ready to spread in May. The generative development is followed by the vegetative growth, occurring from the end of May [1, 1719]. Some data on the factors influencing the generative development of H. australis are available. The number of flowering shoots and the ma ...
... the seeds develop, are mature and ready to spread in May. The generative development is followed by the vegetative growth, occurring from the end of May [1, 1719]. Some data on the factors influencing the generative development of H. australis are available. The number of flowering shoots and the ma ...
J\c\Published3\Volume 21\No
... Lomas Barbudal, La Irma, and Tilarán. Monthly mean temperature is 28 ± 1 °C throughout the year. Normally, less than 5% of annual precipitation (range: 900–2100 mm) falls between December and April (Figure 1). Observed species Observed species and species cited from the literature will be referred t ...
... Lomas Barbudal, La Irma, and Tilarán. Monthly mean temperature is 28 ± 1 °C throughout the year. Normally, less than 5% of annual precipitation (range: 900–2100 mm) falls between December and April (Figure 1). Observed species Observed species and species cited from the literature will be referred t ...
Flowering plant
The flowering plants (angiosperms), also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by characteristics including flowers, endosperm within the seeds, and the production of fruits that contain the seeds. Etymologically, angiosperm means a plant that produces seeds within an enclosure, in other words, a fruiting plant.The ancestors of flowering plants diverged from gymnosperms around 245–202 million years ago, and the first flowering plants known to exist are from 160 million years ago. They diversified enormously during the Lower Cretaceous and became widespread around 120 million years ago, but replaced conifers as the dominant trees only around 60–100 million years ago.