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lecture outline
lecture outline

... developmental stage of the plant. Response to a hormone usually depends not so much on its absolute concentration as on its relative concentration compared to other hormones. It is hormonal balance, rather than hormones acting in isolation, that control the growth and development of plants. The term ...
Document
Document

... relationships at deep levels of evolution. eg. familial level; mono- & dicotyledonous; - Chloroplast protein-coding genes evolve at a rate that is on average fivefold slower than plant nuclear genes. ...
A Beginners Guide to Orchids - Free Coursework for GCSE, IGCSE
A Beginners Guide to Orchids - Free Coursework for GCSE, IGCSE

... is three-carpelate and one or, more rarely, three-partitioned, with parietal placentation (axile in the Apostasioideae). Orchid Fruits and Seeds: The ovary typically develops into a capsule that is dehiscent by 3 or 6 longitudinal slits, while remaining closed at both ends. The ripening of a capsule ...
chap-4 c
chap-4 c

... This type grows on exposed sunny slopes both at the bottom and top of the mountain (Figs. 86d to e). Average leaf number and size observed in this type was 9 ± 1.8 and 3.8 x 1.3 cm respectively. Average inflorescence length in this morphoform was 7 ± 2.7 (Table ...
Bitter Sneezeweed Life Cycle: Annual Summer annual with purplish
Bitter Sneezeweed Life Cycle: Annual Summer annual with purplish

... Giant ragweed reaches 12 to 15 feet on fertile, moist soils; 4 to 8 feet in less fertile, dry areas. Leaves are in pairs on coarse stems and have three to five large lobes. Common ragweed, 1 to 4 feet tall, has many lobed leaves. Lanceleaf grows 1 to 4 feet tall with rough leaves bearing two sharp ...
Dia 1 - Spate Irrigation
Dia 1 - Spate Irrigation

... Sorghum is grown in warm or hot regions that have summer rain-fall, even if rainfall is as low as 400-600 mm. The most favorable mean temperature is about 37oC. The minimum temperature for growth is 15oC. The sorghum plants seems to withstand extreme heat better than other crops. Sorghum is practica ...
Plant Species Diversity in a Grassland Plant Community:
Plant Species Diversity in a Grassland Plant Community:

... indicate that greater species richness coincided with greater overall biomass or productivity. This finding is consistent with other research suggesting increased diversity is positively correlated with increased community productivity and stabilization due to more complete use of resources. Because ...
Identification, Symptoms and nature of damage of Helicoverpa
Identification, Symptoms and nature of damage of Helicoverpa

... • Remove the loose bark at the time of pruning and rub the stems with jute to remove the egg masses. • Put bundles of dry shreds of banana on the pruned end of the vines in the evening. Beetles, which take shelter on these at night, can be shaken and collected in the morning and kill them. • Shake v ...
The Primitive Flowering Plants
The Primitive Flowering Plants

... Aristolochiaceae - birthwort family! 8-10 genera and about 600 species worldwide; 1 species in Wisconsin. Mostly vines in the tropical regions, but herbs in temperate. The family occurs mostly in tropical forests and warm temperate scrub forests. ...
Culture Notes - Waitakere Orchid Club
Culture Notes - Waitakere Orchid Club

... orchids to be fed at every watering. A little, often, is best. Those orchids that have very little storage will require watering more often. Some orchids require a dry resting period to initiate flowering. Keeping plants dry enough in winter can not be achieved in Auckland’s climate unless you provi ...
wellborn florist
wellborn florist

... cordate (heart-shaped) per year; hairy plants with trichomes over the petioles, flower etc. ...
FIVE PETALS: THE MYSTERIOUS NUMBER “5”
FIVE PETALS: THE MYSTERIOUS NUMBER “5”

... explained later (spiral phyllotaxis). This suggests that a flower consists of metamorphosed leaves with a very shortened stem. By the way, the leaf primordium theory about a flower was originally advocated by Goethe in1970. this theory is correct on the whole, although it also contains an error in t ...
42KB - NZQA
42KB - NZQA

... depositing it in new areas. These new populations had to adapt to their new environmental conditions, with A. lyalli having cooler conditions and A. sinclairii having warmer conditions. Because they are geographically isolated no gene flow occurs between the two groups. This causes them to form two ...
Schedule
Schedule

... depositing it in new areas. These new populations had to adapt to their new environmental conditions, with A. lyalli having cooler conditions and A. sinclairii having warmer conditions. Because they are geographically isolated no gene flow occurs between the two groups. This causes them to form two ...
Life cycle of a flowering plant
Life cycle of a flowering plant

... Ovule: In the ovary, the pollen joins with the ovules, and the ovules become seeds. Sepal: Sepals are special types of leaves that form a ring around the petals. Their job is to protect the flower Carpel: The female part of a flower called Carpel ...
ORGANISMS AND POPULATIONS
ORGANISMS AND POPULATIONS

... similar features and the potential interbreed among themselves and produce fertile offspring, constitute a species. Populations : Population is a group of individuals of the same species, inhabiting in a given area. Interspecific competition for basic needs operate among the individuals of a populat ...
Pollination Partners
Pollination Partners

... Pollination occurs when a flower receives pollen from another flower of the same species and fertilization occurs. Pollination is essential for our survival. Most of the foods we eat would not be possible without pollinators! Natural fibers, fruits, vegetables, forest products (wood, rubber, vanilla ...
Memecylon cerasiforme (Melastomataceae): a poorly known
Memecylon cerasiforme (Melastomataceae): a poorly known

... mm long which corresponds to the only type sheet available at Kew [K000357772]. Kurz (1877) stated that the fruiting peduncle is not above ½ in. (= 1.27 cm) long. In most of the specimens from Jaldapara, the peduncle length varies between 5 and 13 mm. The second author, whilst conducting revisionary ...
Nevada Bluegrass Leaflet ZV
Nevada Bluegrass Leaflet ZV

... How does it spread? — By seed. Shape of leaves — Folded (sometimes flat), rather narrow and light green. The ligules (small, thin membranes at the junction of blade and sheath) are thin, papery, and about l/8 inch long. Location of leaves -- Mostly basal with shorter leaves from the stems. Shape and ...
Chapter 1
Chapter 1

... help move seeds to new places. Many animals eat fruit and later they leave the seeds in the fruit behind. Some animals, like squirrels, bury seeds and may not return to get them. Some seeds stick to the fur of animals. The seeds get a ride to a new place. ...
Introduction to Plants
Introduction to Plants

... Mosses and Other Bryophytes The bryophytes have specialized reproductive organs. ▶ Bryophytes are small because they lack vascular tissue, which is specialized for conducting water. ▶ Bryophytes display alternation of generations: • Gametophytes produce eggs in archegonia and sperm in antheridia. Sp ...
Pollination Biology - SANBI | Biodiversity for Life
Pollination Biology - SANBI | Biodiversity for Life

... they in season, have chemicals been applied correctly and in a bee-friendly manner?). • Become a researcher or help researchers. Much research is still needed, e.g. the impacts of climate ...
Chap 39
Chap 39

... nutrients from surrounding tissues. – Leaves removed from a plant and dipped in a cytokinin solution stay green much longer than otherwise. – Cytokinins also slow deterioration of leaves on intact plants. – Florists use cytokinin sprays to keep cut flowers fresh. Copyright © 2002 Pearson Education, ...
Botany Student Notes File
Botany Student Notes File

... water up the stem from the root to replace water lost by the leaf d) ______________________________- water molecule clings to xylem cell walls which prevents back flow due to gravity. e) _______________________________- water is pushed up the root xylem tubes as water enters the root hairs f) Plants ...
Jatropha Propagation How to
Jatropha Propagation How to

... The flowers of jatropha are formed terminally with the female flowers usually slightly larger. It has two flowering peaks which occur during the wet season. It is pollinated by insects and each inflorescence yields fruits. Jatropha starts producing seeds within 14 months from planting but reaches it ...
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Perovskia atriplicifolia



Perovskia atriplicifolia (/pəˈrɒvskiə ætrɪplɪsɪˈfoʊliə/), commonly called Russian sage, is a flowering herbaceous perennial plant and subshrub. Although not a member of Salvia, the genus of other plants commonly called sage, it is closely related to them. It has an upright habit, typically reaching 0.5–1.2 m (1 ft 8 in–3 ft 11 in) tall, with square stems and gray-green leaves that yield a distinctive odor when crushed, but it is best known for its flowers. Its flowering season extends from mid-summer to as late as October, with blue to violet blossoms arranged into showy, branched panicles.Native to the steppes and hills of southwestern and central Asia, it was introduced to cultivation by Vasily Perovsky in the 19th century. Successful over a wide range of climate and soil conditions, it has since become popular and widely planted. Several cultivars have been developed, differing primarily in leaf shape and overall height; 'Blue Spire' is the most common. This variation has been widely used in gardens and landscaping. P. atriplicifolia was the Perennial Plant Association's 1995 Plant of the Year, and the 'Blue Spire' cultivar received the Award of Garden Merit from the Royal Horticultural Society.The species has a long history of use in traditional medicine in its native range, where it is employed as a treatment for a variety of ailments. This has led to the investigation of its phytochemistry. Its flowers can be eaten in salads or crushed for dyemaking, and the plant has been considered for potential use in the phytoremediation of contaminated soil.
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