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Free-radical scavenging activity and bioactive secondary
Free-radical scavenging activity and bioactive secondary

... highly reactive free radicals, removing free radical intermediates and inhibiting other oxidation reactions[11]. Phenolic compounds, also known as polyphenols or phenylpropanoids, are a large family of secondary metabolites derived from the aromatic amino acids. This diverse group of secondary metab ...
CHAPTER 39
CHAPTER 39

... Plant hormones tend to be relatively small molecules that are transported from cell to cell across cell walls, a pathway that blocks the movement of large molecules. Plant hormones are produced at very low concentrations. Signal transduction pathways amplify the hormonal signal many-fold and connect ...
Diamondback Moth - Agriculture Research
Diamondback Moth - Agriculture Research

... distinguished from other similar larvae because when they are disturbed, the move backward rapidly and thrash their bodies, dropping from the plant on a fine silken thread. Larvae feed for 10-30 days depending on food supply and temperature. Pupation takes place in a delicate, white cocoon attached ...
0 xalis in the british isles
0 xalis in the british isles

... and spreading the faster, the more that attempts are made to dig them out. Bulbils are spread from place to place in soil adhering to digging implements, boots, and transplanted roots, and probably are carried by birds. Peat used for top-dressing has often been blamed as a vehicle, and I have invest ...
plant responses to
plant responses to

...  Plant growth patterns vary dramatically in the presence versus the absence of light.  For example, a potato (a modified underground stem) can sprout shots from its “eyes” (axillary buds).  These shoots are ghostly pale, have long and thin stems, unexpanded leaves, and reduced roots.  These morp ...
A beginner`s vegetative guide to orchids of the British Isles PDF
A beginner`s vegetative guide to orchids of the British Isles PDF

... Like any family, there are specific traits that identify orchids. Firstly, orchids are perennials meaning they flower each year usually at a specific time – in Britain this is always the spring and summer. They have fleshy roots or tubers similar to a bulb with unstalked and undivided leaves. A larg ...
FUMARIACEAE -- Fumatory Family
FUMARIACEAE -- Fumatory Family

... petioles, ovate in outline, 6 - 25 cm long, deeply pinnatifid with 7 - 11 ovate to lanceolate divisions, these pointed, coarsely toothed, rough or somewhat hairy below. Flowers perfect, in branched, coiled clusters carried on long stalks mostly exceeding the leaves. Individual flowers on stalks 2 - ...
SF 111 final psg
SF 111 final psg

... December, size-graded and then cold-stored at -1.7°C. Plants are removed from store for planting between February and July, depending on the fruiting period required. Fungicides are usually applied during flowering to prevent B. cinerea infection of the fruit. ...
Dissecting Gladiolus (adapted from “How to Dissect” by W. Berman
Dissecting Gladiolus (adapted from “How to Dissect” by W. Berman

... & female organs plus petals & sepals. It is large and simple to dissect and is a fine representative of one of the two great divisions of flowering plants. There are about 260 species of the Gladiolus genus, a member of the lily family. Obtain a stalk or stem with several gladiolus flowers. Carefull ...
2017 Tilth Alliance Early Spring Edible Plant Sale Herb and Flower
2017 Tilth Alliance Early Spring Edible Plant Sale Herb and Flower

... Grows to 12", slowly spreading by creeping roots and stems. Marjoram is sometimes overlooked as an important culinary herb. With a flavor similar to oregano but much sweeter and subtler, it can be used in similar dishes. Very good with fish and meats. Its subtle flavor can be lost with cooking, so a ...
Whittlesea weed fact sheet * Serrated Tussock
Whittlesea weed fact sheet * Serrated Tussock

... similar in size and shape to a sesame seed develops, which has a short awn (tail). Leaves: Are usually light-mid green when actively growing, however older leaves are often straw coloured. Generally the leaves are long and thin with serrations on the edges/margins, which are easily felt if rubbed ba ...
Whittlesea weed fact sheet – Serrated Tussock
Whittlesea weed fact sheet – Serrated Tussock

... similar in size and shape to a sesame seed develops, which has a short awn (tail). Leaves: Are usually light-mid green when actively growing, however older leaves are often straw coloured. Generally the leaves are long and thin with serrations on the edges/margins, which are easily felt if rubbed ba ...
OCA Tubers from the Andes
OCA Tubers from the Andes

... harvested in October before the freeze in the Northwest garden or later if grown in containers and protected. In its native lands of Bolivia and Peru, oca is second only to the potato in agricultural importance. It is an excellent source of carbohydrates, phosphorus and iron, as well as essential am ...
Four New Species of Agave (Agavaceae) of the
Four New Species of Agave (Agavaceae) of the

... 4. Spine 9–26 mm long; flowers 34–45 mm long, ovary 18–25 mm long, anthers at anthesis 14–16 mm, tepals 11–17 mm long, tube 4–6 mm long; on limestone or volcanic substrate with mixed or tropical dry forest, 585–1,400 m; Nayarit or Michoacán . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Mineral Nutrition
Mineral Nutrition

... phorus is tied up in insoluble compounds containing iron, aluminum, and magnesium. Likewise, at high pH values, other reactions dominate and phosphorus becomes tied up in calcium phosphates. Usually, a pH of 6 is considered optimum for phosphorus availabiJ­ ity to plants. Even at this level, onl y a ...
THE DYE YIELDING PLANTS USED IN TRADITIONAL ART OF
THE DYE YIELDING PLANTS USED IN TRADITIONAL ART OF

... A moderate sized tree. Bark dark grayishbrown, nearly 1.3cm in thickness, exfoliating in long narrow strips. Sapwood yellowish white but heartwood red. Leaves pinnate with a pair of recurved prickles at base of rachis; pinnae 40-80; leaflets 60-100, small, ligulate. Flowers dark yellow in cylindrica ...
Self-Guided eTHNO BOTaNic TOur
Self-Guided eTHNO BOTaNic TOur

... benghalensis, is native to tropical Asia and was first imported to Hawai‘i from India in 1873 as a gift to the Hawaiian royalty. The Indian Banyan tree belongs to the fig family and has large leathery leaves and aerial prop roots that drop downwards from the branches, finding their way to the earth, ...
PDF - FloraBase—the Western Australian Flora
PDF - FloraBase—the Western Australian Flora

... 1. Leaf bases membranous, intact or with very few longitudinal splits.......................................................................................................3. L. integra 1. Lomandra odora (Endl.) Ewart, Proc. Roy. Soc. Vict. 28: 219 (1916). (Figure 1) Xerotes odora Endl. in Lehm., ...
QUESERIA CREEK PLANT DIRECTORY
QUESERIA CREEK PLANT DIRECTORY

... frost in fall. But, in fact, many gardeners try to start planting and harvesting when frost still threatens. With a simple cold frame, you can extend your season by a month or more on either end—in some climates, you can grow right through the winter with one. A cold frame is an ideal place to gradu ...
Creeping Bellflower - Wisconsin Master Gardener
Creeping Bellflower - Wisconsin Master Gardener

... surrounded by 5 much smaller, green lanceolate sepals. The flower has 5 stamens and an exerted white or pale purple style with 3 curled stigmas. The flowers occur in a terminal raceme (unbranched cluster) with a number of slightly nodding or drooping flowers on short pedicels along one side of the s ...
Identification of insects, spiders and mites in vegetable crops
Identification of insects, spiders and mites in vegetable crops

... This mirid bug feeds on the buds, growing points, flowers and foliage of many plants, resulting in wilting, deformation and stunting. Its hosts include peas, beans, carrots, potatoes, asparagus and strawberries. Adults are 6–8 mm long, with long legs and antennae. They are mainly green, although the ...
Key to the Gymnosperms (Conifers)
Key to the Gymnosperms (Conifers)

... female cones 6-13 cm long, cones bristly to the touch ...Pinus teada (Loblolly Pine 5b. Female cones with thick cone scales, female conelarger,10-15 cm long, ,-mature cones are not as bristly to the touch ...Pinus elliottii (Slash Pine) 4b. Female cone egg-shaped, about 5-8 cm ' long, cones persiste ...
Gymnoschoenus sphaerocephalus
Gymnoschoenus sphaerocephalus

... the tussocks can be killed by even a moderate fire if the conditions are dry or in areas where there is little peat cover, as the rhizomes require wet peat to protect them from heat damage. Regeneration after fire is quite rapid and buttongrass can produce shoots 10–20 cm long 3 months after a low i ...
Boron Improves Clover Production J
Boron Improves Clover Production J

... BORON deficiencies occur throughout North America, and responses to B fertilization of alfalfa, soybeans and other crops have been documented in many areas. During the recent years, B deficiencies have been noted with greater frequency. There are several reasons why this may be occurring: • Heavier ...
Common plants of the Rwenzori, particularly the upper zones
Common plants of the Rwenzori, particularly the upper zones

... inflorescence of a few flowerheads without rays, purple-coloured. Common on open, stony slopes in alpine zone. Alt. 3’700-4’200 m. Senecio transmarinus. Herb to 50 cm tall, leaves lobed, somewhat waxy or sparsely hairy, inflorescences with several flowerheads with striking large yellow ray florets. ...
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Leaf



A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem. The leaves and stem together form the shoot. Foliage is a mass noun that refers to leaves collectively.Typically a leaf is a thin, dorsiventrally flattened organ, borne above ground and specialized for photosynthesis. Most leaves have distinctive upper (adaxial) and lower (abaxial) surfaces that differ in colour, hairiness, the number of stomata (pores that intake and output gases) and other features. In most plant species, leaves are broad and flat. Such species are referred to as broad-leaved plants. Many gymnosperm species have thin needle-like leaves that can be advantageous in cold climates frequented by snow and frost. Leaves can also have other shapes and forms such as the scales in certain species of conifers. Some leaves are not above ground (such as bulb scales). Succulent plants often have thick juicy leaves, but some leaves are without major photosynthetic function and may be dead at maturity, as in some cataphylls, and spines). Furthermore, several kinds of leaf-like structures found in vascular plants are not totally homologous with them. Examples include flattened plant stems (called phylloclades and cladodes), and phyllodes (flattened leaf stems), both of which differ from leaves in their structure and origin. Many structures of non-vascular plants, and even of some lichens, which are not plants at all (in the sense of being members of the kingdom Plantae), look and function much like leaves. The primary site of photosynthesis in most leaves (palisade mesophyll) almost always occurs on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of Eucalyptus palisade occurs on both sides and the leaves are said to be isobilateral.
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