16. transmission of stimulus - theories of flowering.
... There are two main theories to explain the mechanism of vernalisation. 1. Phasic developmental theory This theory was proposed by Lysenko (1934) as follows. (i) ...
... There are two main theories to explain the mechanism of vernalisation. 1. Phasic developmental theory This theory was proposed by Lysenko (1934) as follows. (i) ...
Pacific Coast Native Iris - California Native Plant Society
... needles, or peat moss are all good soil amendments for improving the acid condition of the soil. They do well with only occasional feeding. They do not need frequent dividing like the bearded iris, and may be left in the ground to slowly increase over the years. If you want to divide or move th ...
... needles, or peat moss are all good soil amendments for improving the acid condition of the soil. They do well with only occasional feeding. They do not need frequent dividing like the bearded iris, and may be left in the ground to slowly increase over the years. If you want to divide or move th ...
EXPERIMENT NO 5 AIM To study the characteristics of Spirogyra
... 1. The plant body is filamentous, unbranched and made up of cylindrical cells placed one above the other. 2. Cells are longer with one or two spiral ribbon shaped chloroplasts. 3. Each cell has a single large nucleus and a vacuole. Agaricus 1. We generally see a fruiting body of Agaricus. 2. It is m ...
... 1. The plant body is filamentous, unbranched and made up of cylindrical cells placed one above the other. 2. Cells are longer with one or two spiral ribbon shaped chloroplasts. 3. Each cell has a single large nucleus and a vacuole. Agaricus 1. We generally see a fruiting body of Agaricus. 2. It is m ...
Morden Blush Shrub Rose
... Morden Blush Shrub Rose features showy lightly-scented white flowers with shell pink overtones at the ends of the stems from late spring to late summer, which emerge from distinctive pink flower buds. The flowers are excellent for cutting. It has dark green foliage throughout the season. The oval co ...
... Morden Blush Shrub Rose features showy lightly-scented white flowers with shell pink overtones at the ends of the stems from late spring to late summer, which emerge from distinctive pink flower buds. The flowers are excellent for cutting. It has dark green foliage throughout the season. The oval co ...
Angiosperm Reproduction: Flowers, Fruits, and Seeds
... Although the flowers of angiosperms show a tremendous diversity (80% of all species of plants are angiosperms) the structures that make up the flower are basically the same for all species. The following parts are recognized although not all may occur in any one flower. The supporting stalk of the f ...
... Although the flowers of angiosperms show a tremendous diversity (80% of all species of plants are angiosperms) the structures that make up the flower are basically the same for all species. The following parts are recognized although not all may occur in any one flower. The supporting stalk of the f ...
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... Amaranthus spinosus L.: Family: Amaranthaceae Fl. and fr. : August-October Amaranthus spinosus L. is an annual growing to 0.6 m (2 ft). The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and are pollinated by Wind, self. Pollen is ...
... Amaranthus spinosus L.: Family: Amaranthaceae Fl. and fr. : August-October Amaranthus spinosus L. is an annual growing to 0.6 m (2 ft). The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and are pollinated by Wind, self. Pollen is ...
The megasporocyte divides by meiosis to produce the haploid
... Cells rapidly develop a high metabolic rate and the storage bodies diminish. Germination in garden bean. The seed is mostly made up of the two cotyledons. Initial stages of germination, however, involve other parts of the embryo, the hypocotyl and epicotyl. The hypocotyl is a structure just at the b ...
... Cells rapidly develop a high metabolic rate and the storage bodies diminish. Germination in garden bean. The seed is mostly made up of the two cotyledons. Initial stages of germination, however, involve other parts of the embryo, the hypocotyl and epicotyl. The hypocotyl is a structure just at the b ...
Plant Timing Responses
... •Scarification may be done using •Acid or hot water •Abrasion •Passing through the digestive tract of an animal. •Decomposition of seed coat by soil organisms •Fire (in some cases). •Exposure to moist chilling (Stratification). The seed must spend time at or near freezing temperature. This ensures t ...
... •Scarification may be done using •Acid or hot water •Abrasion •Passing through the digestive tract of an animal. •Decomposition of seed coat by soil organisms •Fire (in some cases). •Exposure to moist chilling (Stratification). The seed must spend time at or near freezing temperature. This ensures t ...
exam 4 practice questions
... 24. Ovaries are MATURE/ IMMATURE fruits. Fruits are MATURE/ IMMATURE ovaries. 25. Ovules (inside the ovaries) are MATURE/ IMMATURE seeds. Seeds are MATURE/ IMMATURE ovules. 26. While one of the two sperm in a mature gametophyte fertilizes the egg, the other fuses with the ________ to form a triploid ...
... 24. Ovaries are MATURE/ IMMATURE fruits. Fruits are MATURE/ IMMATURE ovaries. 25. Ovules (inside the ovaries) are MATURE/ IMMATURE seeds. Seeds are MATURE/ IMMATURE ovules. 26. While one of the two sperm in a mature gametophyte fertilizes the egg, the other fuses with the ________ to form a triploid ...
Plant Need Why do plants need this?
... Milkweed is a flowering plant that grows groups of tiny flowers. Milkweed has developed a system for being pollinated by butterflies, moths and bees. These flowers collect their pollen in little sacs that are attached to the base of each flower. They also produce sweet nectar that attracts animals t ...
... Milkweed is a flowering plant that grows groups of tiny flowers. Milkweed has developed a system for being pollinated by butterflies, moths and bees. These flowers collect their pollen in little sacs that are attached to the base of each flower. They also produce sweet nectar that attracts animals t ...
Guinea Gold Martagon Lily
... to be leggy, with a typical clearance of 1 feet from the ground, and should be underplanted with lower-growing perennials. The flower stalks can be weak and so it may require staking in exposed sites or excessively rich soils. It grows at a fast rate, and under ideal conditions can be expected to li ...
... to be leggy, with a typical clearance of 1 feet from the ground, and should be underplanted with lower-growing perennials. The flower stalks can be weak and so it may require staking in exposed sites or excessively rich soils. It grows at a fast rate, and under ideal conditions can be expected to li ...
Gardening with Native Vines - Missouri Prairie Foundation
... with its bright red and burgundy foliage. For some reason it doesn’t grow on smooth concrete walls, but prefers rough surfaces or stone. They hide ugly concrete block walls and buildings effectively and produce copious amounts of berries that bring in the birds in autumn. Planting large native vines ...
... with its bright red and burgundy foliage. For some reason it doesn’t grow on smooth concrete walls, but prefers rough surfaces or stone. They hide ugly concrete block walls and buildings effectively and produce copious amounts of berries that bring in the birds in autumn. Planting large native vines ...
to the pre-order form and price list
... SOLEIL D’OR 8 Y-O Yellow petals with yellow cup that turns to a bright orange-red on rather tall stems. Glows in the dull winter light. Needs full sun. To Central Florida . 1770! 10-12” January TRESAMBLE 5 W-W Medium sized flowers have swept back petals with cream cups that fade to white. It multipl ...
... SOLEIL D’OR 8 Y-O Yellow petals with yellow cup that turns to a bright orange-red on rather tall stems. Glows in the dull winter light. Needs full sun. To Central Florida . 1770! 10-12” January TRESAMBLE 5 W-W Medium sized flowers have swept back petals with cream cups that fade to white. It multipl ...
Groundcovers - Pleasant Valley Greenhouse
... perennial, so it dies back in the winter. Cerastium – (Snow in the Summer) Silvery foliage and white flowers in May and June. Cotoneaster Apiculato – A semi-evergreen spreading groundcover can be 2’ high and 36’ wide. This does best in good, well-drained soil. Attractive red berries in late summer t ...
... perennial, so it dies back in the winter. Cerastium – (Snow in the Summer) Silvery foliage and white flowers in May and June. Cotoneaster Apiculato – A semi-evergreen spreading groundcover can be 2’ high and 36’ wide. This does best in good, well-drained soil. Attractive red berries in late summer t ...
Horticulture AMARYLLIS Indoor Plants #200
... Plant the bulbs in a container that has drainage holes. The container should be about 2 inches bigger in diameter than the bulb. The planting mix should drain well; an equal mix of peat and perlite would be suitable. Plant so that about one third of the bulb shows above the soil level. After plantin ...
... Plant the bulbs in a container that has drainage holes. The container should be about 2 inches bigger in diameter than the bulb. The planting mix should drain well; an equal mix of peat and perlite would be suitable. Plant so that about one third of the bulb shows above the soil level. After plantin ...
I. Flower Structure
... sepals of a flower constitute the calyx. Aside from photosynthesis, the major function appears to be protection of the flower parts during early development. Petals are attached above (inside) the sepals on the receptacle. They are usually larger than the sepals, brightly colored, and rather leaf-li ...
... sepals of a flower constitute the calyx. Aside from photosynthesis, the major function appears to be protection of the flower parts during early development. Petals are attached above (inside) the sepals on the receptacle. They are usually larger than the sepals, brightly colored, and rather leaf-li ...
Native Shrubs in Our Gardens - Emerald Chapter, Native Plant
... a 10- to 15-foot open shrub in shade. Although native to damp sites, it performs well on drier sites. Birds are attracted to this shrub’s seeds for food and to its dense growth for cover. Rounded white coryms of flowers like snowballs on top of ninebark’s crinkled, maple-shaped leaves Douglas Spirae ...
... a 10- to 15-foot open shrub in shade. Although native to damp sites, it performs well on drier sites. Birds are attracted to this shrub’s seeds for food and to its dense growth for cover. Rounded white coryms of flowers like snowballs on top of ninebark’s crinkled, maple-shaped leaves Douglas Spirae ...
Thelesperma filifolium (Hooker) A. Gray
... blade broadly triangular in outline (threadlike lobes), primary and secondary blade axis channeled, below the basal primary lobes 5−25 mm long. Inflorescence: head, terminal on each principal shoot, 1−several heads in loose, open, cymelike array, head radiate, 20−45 mm across, with 8 neuter ray flow ...
... blade broadly triangular in outline (threadlike lobes), primary and secondary blade axis channeled, below the basal primary lobes 5−25 mm long. Inflorescence: head, terminal on each principal shoot, 1−several heads in loose, open, cymelike array, head radiate, 20−45 mm across, with 8 neuter ray flow ...
Blushing Bride Hydrangea
... Blushing Bride Hydrangea features bold balls of white flowers with shell pink overtones at the ends of the branches from early summer to mid fall. The flowers are excellent for cutting. It has dark green foliage throughout the season. The glossy pointy leaves do not develop any appreciable fall colo ...
... Blushing Bride Hydrangea features bold balls of white flowers with shell pink overtones at the ends of the branches from early summer to mid fall. The flowers are excellent for cutting. It has dark green foliage throughout the season. The glossy pointy leaves do not develop any appreciable fall colo ...
Bugs, Beetles, and Bees - Friends of Pioneers Park Nature Center
... see yellow or orange balls on their legs. What you are seeing are full pollen baskets. As the bee travels from flower to flower they pick up pollen on the tiny hair covering their bodies. The bumble bee helps to pollenate other flowers as they move about, spreading the pollen they carry from one flo ...
... see yellow or orange balls on their legs. What you are seeing are full pollen baskets. As the bee travels from flower to flower they pick up pollen on the tiny hair covering their bodies. The bumble bee helps to pollenate other flowers as they move about, spreading the pollen they carry from one flo ...
Tattoo Hosta - Plant World
... Ornamental leaves are gold with light green margin and streaks Ornamental Features: Tattoo Hosta features dainty spikes of lavender tubular flowers rising above the foliage from early to mid summer. It's attractive small textured oval leaves remain chartreuse in colour with showy light green variega ...
... Ornamental leaves are gold with light green margin and streaks Ornamental Features: Tattoo Hosta features dainty spikes of lavender tubular flowers rising above the foliage from early to mid summer. It's attractive small textured oval leaves remain chartreuse in colour with showy light green variega ...
Fraser Photinia
... Fraser Photinia will grow to be about 12 feet tall at maturity, with a spread of 7 feet. It tends to be a little leggy, with a typical clearance of 1 feet from the ground, and is suitable for planting under power lines. It grows at a fast rate, and under ideal conditions can be expected to live for ...
... Fraser Photinia will grow to be about 12 feet tall at maturity, with a spread of 7 feet. It tends to be a little leggy, with a typical clearance of 1 feet from the ground, and is suitable for planting under power lines. It grows at a fast rate, and under ideal conditions can be expected to live for ...
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Magnoliophyta, also called angiosperms). The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a population) or allow selfing (fusion of sperm and egg from the same flower). Some flowers produce diaspores without fertilization (parthenocarpy). Flowers contain sporangia and are the site where gametophytes develop. Flowers give rise to fruit and seeds. Many flowers have evolved to be attractive to animals, so as to cause them to be vectors for the transfer of pollen.In addition to facilitating the reproduction of flowering plants, flowers have long been admired and used by humans to beautify their environment, and also as objects of romance, ritual, religion, medicine and as a source of food.