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Topic: Petiole

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	Tiliaceae Draft (Site not responding. Last check: 2007-10-14)
		Petiole 3-8 cm, usually sparsely pilose; leaf blade orbicular to ovate orbicular, (5-)7-13 ´ (4.5-)6-9 cm, papery, glabrous adaxially, densely or thickly stellate tomentose abaxially, base usually oblique, cordate, truncate or round, margin serrate, apex acuminate or short acuminate; basal veins 5-7, lateral veins 7-8 on each side of the midrib.
		Petiole 1.5-5 cm, glabrous or rarely pilose; leaf blade ovate orbicular or triangular ovate, 6-12 ´ 4.5-10 cm, glabrous adaxially, densely gray white tomentose abaxially, base shallow cordate to oblique truncate, margin serrate to serrulate, apex short acuminate; lateral veins 5-6 on each side of the midrib.
		Petiole 1.5-3 cm, glabrous; leaf blade ovate of ovate orbicular, 9-12 ´ 6-8 cm, glabrous adaxially and abaxially, or hairy in vein axials on young leaves, base oblique cordate or nearly round, margin entire or minutely dentate near apex, apex acute; lateral veins 6-7 on each side of the midrib.
	www.fna.org /china/mss/volume12/Tiliaceae-US_edited.htm (8812 words)

	Leaf - Wikipedia, the free encyclopedia
		A structurally complete leaf of an angiosperm consists of a petiole (leaf stem), a lamina (leaf blade), and stipules (small processes located to either side of the base of the petiole).
		They may be lasting and not be shed (a stipulate leaf, such as in roses and beans); or be shed as the leaf expands, leaving a stipule scar on the twig (an exstipulate leaf).
		Palmate-netted, palmate-veined, fan-veined; several main veins diverge from near the leaf base where the petiole attaches, and radiate toward the edge of the leaf; e.g.
	en.wikipedia.org /wiki/Leaf (2501 words)

	ACERACEAE [Draft] (Site not responding. Last check: 2007-10-14)
		Petiole glabrous or pubescent, kneed at base, 1.5--5 cm; leaf blade orbicular, 2.3--10 X 3--10 cm, palmately 7--9-lobed, lobes lanceolate or lanceolate-oblong, both surfaces villous especially on veins, base cordate, apex acuminate, margin sharply and doubly serrate.
		Leaves deciduous; petiole 2.5--6 cm, glabrous; leaf blade adaxially dark yellowish green, 5--8 X 5--9 cm, base truncate or subcordate with a broad sinus, abaxially lustrous, reticulate and glabrous with exception of axillary tufts of pale hairs, 5-lobed, rarely 3- or 4-lobed in young shoots; lobes triangular-ovate, margin sharply serrulate, apex acuminate.
		Petiole 2--6 cm; leaf blade suborbicular, 3--6 X 4--8 cm, membranous to papery, yellowish brown pubescent when unfolding, soon glabrous except for axillary tuft of hairs on abaxial surface, base cordate to subtruncate, palmately 5--7-lobed to middle; lobes lanceolate, margin irregularly doubly serrate, apex long acuminate.
	www.fna.org /china/mss/volume11/Aceraceae-AGH_coauthoring.htm (4681 words)

	Plant Petiole Sap-Testing For Vegetable Crops
		Although three or four petioles may produce a sufficient amount of sap for testing, additional plants must be sampled to ensure that the sap sample is representative of the field or area being tested.
		The petioles should be chopped and mixed, and a subsample of the chopped petiole pieces used for the final sample to crush.
		Guidelines for petiole sap N and K concentrations are presented in Table 1.
	edis.ifas.ufl.edu /CV004 (1658 words)

	Comparison of the Two Methods for the Analysis of Petiole Nitrate Nitrogen Concentration in Irrigated Cotton
		They found that the NO -N concentrations measured in the petiole sap extracts increased relative to those measured in the dried petioles during later stages of growth, and concluded that this may be a result of the decrease in moisture content in mature cotton plants.
		Petioles were sampled from the uppermost, fully expanded mature leaf, which generally fell in the vicinity of the fourth or fifth node below the terminal.
		Dried petiole samples were extracted with a 0.025 M Al buffer solution containing 10 mg NO The extraction process involved the addition of 40 ml of the extracting solution to 400 mg of dried sample and shaking the mixture for 15 minutes.
	ag.arizona.edu /pubs/crops/az1006/az10068c.html (1522 words)

	Petiole Testing 1 (Site not responding. Last check: 2007-10-14)
		Petiole analysis is generally considered the best means of determining the nutrient status of grapevines and is needed to help make fertilization decisions for the coming year.
		Petiole analysis should be done at least every other year.
		If soil tests are also taken, be sure both the petiole test and the soil test numbers are recorded on both the petiole information sheet and the soil information sheet.
	www.cce.cornell.edu /programs/finger-lakes-grape/petiole1.html (222 words)

	Australian Ants Online - Glossary of terms (Site not responding. Last check: 2007-10-14)
		The head is the first section, followed by the large mesosoma, the small petiole and sometimes the postpetiole, and finally the gaster.
		The head carries the antennae and mouthparts, the three pairs of legs are attached to the lower surface of the mesosoma and the gaster terminates with a defensive structure (often a sting or acidopore).
		The upper surfaces of the petiole and postpetiole are often high and rounded or angular.
	www.ento.csiro.au /science/ants/terms.htm (1478 words)

	A&L Canada Laboratories Inc.\| Interpreation of Laboratory Anlysis
		Petiole phosphorus levels tend to decline through the bloom period and level off thorough mid-summer.
		Petiole levels in California vineyards almost always increase as the season progresses and tend to be higher in older petioles.
		Critical petiole levels are probably higher later in he season, but they have not been established.
	www.al-labs-can.com /tech_VitiInterpret.html (876 words)

	Leaf Parts
		The leaf is composed of a leaf blade and a petiole.
		The petiole is attached to the stem at a node.
		The whole leaf is attached to the stem at a node by a petiole.
	ol.scc.spokane.edu /PShaw/morph/leafpts.htm (143 words)

	ThAntidesma (Site not responding. Last check: 2007-10-14)
		Petiole 2-7 by 1-2 mm, pilose to densely pubescent.
		Petiole 3-10(-17) by 1.5-2 mm, glabrous to densely ferrugineous-pubescent.
		nienkui from Hainan in the shorter petioles and fused calyx lobes.
	www.nationaalherbarium.nl /thaieuph/ThAntidesma.htm (3741 words)

	UCD Entomology: Ward Lab- Pseudomyrmex ferrugineus Group
		Petiole long and slender, with a well developed anterior peduncle (worker and queen PLI 0.42-0.57) ( Fig.
		Petiole and postpetiole very broad (worker PWI 0.63-0.75, worker PWI3 0.33-0.46, worker PPWI 1.41-1.83; queen PWI2 0.69-0.78), the petiolar node with conspicuous posterolateral angles, in dorsal view ( Fig.
		Petiole and postpetiole relatively narrow (worker PWI 0.49-0.61, worker PWI3 0.50-0.61, worker PPWI 1.03-1.30; queen PWI2 0.57-0.63), the petiolar node without conspicuous posterolateral angles ( Fig.
	entomology.ucdavis.edu /faculty/ward/PsFerGp.html (1797 words)

	Hackberry Petiole Gall Psyllid, Pachypsylla venusta (Osten-Saken)
		The petiole gall psyllid is usually not sufficiently abundant to cause serious damage to its host, but gall infested leaves are unsightly during late fall and winter.
		The petiole gall psyllid is found throughout the range of its four hackberry hosts - from Connecticut to Idaho, southwest to Arizona and southeast throughout Florida.
		Adult petiole gall psyllids are fairly large for psyllids (5.0 to 6.0 mm to tip of folded wings) and resemble small cicadas.
	edis.ifas.ufl.edu /IN214 (747 words)

	Petiole Nitrate Monitoring
		Researchers have found that by monitoring the nitrate-nitrogen content of cotton petioles (leaf stems), adjustments can be made in the nitrogen fertilization program during the growing season to compensate for seasonal variations.
		otton petiole analysis consists of chemically monitoring the nitrate-nitrogen and phosphorus content of cotton petioles for a ten-week period.
		If petiole nitrate-nitrogen is low during the first three weeks of blooming, a soil application, foliar application or both will be recommended.
	hubcap.clemson.edu /~blpprt/petnit.html (942 words)

	Garden Botany
		These veins supply the water for photosynthesis and other nutrients needed by the photosynthesizing cells, and they carry the sugars formed via photosynthesis to other parts of the plant, where they feed the living cells of the roots and stems or are stored for future use.
		Petiole : The stalk to which the lamina is attached.
		Although not technically leaves, buds are nearly always found associated with the base of a leaf petiole.
	www.bbg.org /gar2/topics/botany/parts_leaves.html (2278 words)

	Ohio Trees, Bulletin 700-00, Salix – Willow
		Petioles are 1/5 —1/2 inch (5—12 mm) long.
		Petiole is 1/4—3/5 inch (6—15 mm) long and is glandular.
		The petiole is 1/4—1 inch (6—25 mm) long and glandular.
	ohioline.osu.edu /b700/b700_21.html (1423 words)

	Petiole - Wikipedia, the free encyclopedia
		The Elections for the Board of Trustees of the Wikimedia Foundation are complete.
		A petiole (also called a pedicel) is the first abdominal segment of members of the Apocrita.
		A petiole is also the stalk of a leaf; see leaf for further details.
	en.wikipedia.org /wiki/Petiole (111 words)

	5 Petiole Sap Analysis - A Ouick Tissue Test for Nitrogen in Potatoes (Site not responding. Last check: 2007-10-14)
		Petiole samples were collected from four specified irrigation levels in each of the N treatment plots on a weekly or biweekly basis beginning in early July through the remainder of the growing season.
		The remaining petioles were dried and saved for later analysis for dry matter NO concentration according to the conventional protocol for petiole testing.
		Petiole sap analysis, like dry matter analysis, is an accurate indication of crop N status, but it is just one of the pieces of information that a grower uses to manage a fertilization program.
	landresources.montana.edu /FertilizerFacts/5_Petiole_Sap_Analysis_A_Ouick_Tissue_Test_for_Nitrogen_in_Potatoes.htm (1135 words)

	The Ants of Africa (Site not responding. Last check: 2007-10-14)
		Petiole of a single segment, although the constriction between the first and second gastral segments may be very deep, such that petiole is effectively two-segmented.
		The puncturation of the petiole is much coarser, that of the 1st abdominal segment a little smaller, the rest of the abdomen finely punctured.
		Petiole high, posterior face overall concave in profile, not rectilinear as its cousins; subpetiolar process a yellowish flange, with 3 anterior points and one posterior.
	www.antbase.org /ants/africa/clog5.htm (3374 words)

	MAPLE PETIOLE BORER (Site not responding. Last check: 2007-10-14)
		The ends of the leaf petioles (stems) are often fl and the leaves are usually still green.
		The larvae remain in the portions of the petioles that are still attached to the twigs.
		Raking up leaves to prevent the larvae from overwintering in the soil is not effective as the maple petiole borers are not in the petioles attached to the leaves.
	www.extension.umn.edu /yardandgarden/ygbriefs/e468maplepetioleborer.html (430 words)

	The Ants of Africa (Site not responding. Last check: 2007-10-14)
		Alitrunk constricted in the mesonotal region, the propodeum swollen and bidentate or bituberculate.
		Petiole a scale with the dorsal margin bispinose, bidentate or emarginate.
		TL 4.3 (assumed soldier) HL 1.54 HW 1.45; petiole with acute dorsal spines about as long as interval between their bases; bicoloured - head mahogany red, rest of body fl (the colouration, propodeum with tubercles and the thin forward-angled petiolar scale suggest it is somewhat similar to the worker of L.
	www.antbase.org /ants/africa/clog8d.htm (1977 words)

	The BLADE-ON-PETIOLE 1 gene controls leaf pattern formation through the modulation of meristematic activity in ...
		Note that the reticulate patterns of venation are distinct in the regions of ectopic outgrowth on petioles of cotyledons and rosette leaves (C,D, arrows).
		Ectopic outgrowths are distinct on the adaxial side of the cotyledonary petiole (J, arrowheads).
		petioles, was observed in 3-day-old seedlings of bop1-1.
	dev.biologists.org /cgi/content/full/130/1/161 (7439 words)

	VEGCHAR (Site not responding. Last check: 2007-10-14)
		Petiole --the stalk of a leaf; a leaf without a petiole is sessile
		Axillary bud --the bud in the axil--the angle between the leaf and the stem.
		Peltate --with the petiole attached to the center of the underside of the blade
	www.csdl.tamu.edu /FLORA/tfplab/vegchar.htm (1160 words)

	KeepMedia \| Southeast Farm Press: Can be a good fit: Cotton petiole analysis often useful
		Avoiding nitrogen deficiencies, particularly late in the growing season, is the primary reason for using cotton petiole analysis.
		Petiole monitoring also can be beneficial when farmers face unexpected leaching conditions, he adds.
		Petiole analysis can be a very effective tool in helping us to predict that situation.
	keepmedia.com /pubs/SoutheastFarmPress/2001/07/18/202310?...&oliID=213 (282 words)

	American Journal of Potato Research: Critical petiole nitrate concentration of two processing potato cultivars in ...
		Our second objective was to establish the critical petiole NO^sub 3^-N concentration using the relationship between petiole NO^sub 3^-N concentration and the N nutrition index (NNI), an index based on the N concentration of shoots and tubers.
		The NO^sub 3^-N concentration of petioles from the most recently mature leaves was measured on three sampling dates in 1995 and four sampling dates in 1996 and 1997.
		The critical petiole NO^sub 3^-N concentration, that is the petiole NO^sub 3^-N concentration required to reach close to maximum yield, has most often been established using the relationship between petiole NO^sub 3^-N concentration and tuber yield (Gardner and Jones 1975; Williams and Maier 1990; Porter and Sisson 1991; Westcott et al.
	www.findarticles.com /p/articles/mi_qa4069/is_200307/ai_n9246061 (1511 words)

	[No title]
		Propodeum and petiole of a worker of A. kempfi (from Brown, 1978).
		The anterior face of the petiole forms and approximately 50° angle with the plane of the ventral surface of the petiole, and is convex.
		Much of the petiole is transversely (anterior face) or longitudinally (side) striate, but much of the surface is smooth and glossy, especially the region near the apex, and the posterior face.
	www.utep.edu /leb/ants/Anochetus.doc (3094 words)

	Plant Propagation by Leaf, Cane, and Root Cuttings: Instructions for the Home Gardener
		Leaf without a petiole – This method is used for plants with thick, fleshy leaves.
		Split-vein – Detach a leaf from a rex begonia and remove the petiole.
		This type of cutting consists of a leaf blade, petiole, and a short piece of stem with an attached axillary bud.
	www.ces.ncsu.edu /depts/hort/hil/hil-8700.html (853 words)

	Plant Movement. Submergence-Induced Petiole Elongation in Rumex palustris Depends on Hyponastic Growth -- Cox et al. ...
		Plots represent the angle of the third petiole (four replicate plants) during 16 h of complete submergence, for several batches of plants grown during the course of 1 year.
		Submergence-induced elongation of petioles with manipulated initial angles is shown in Figure 3 B.
		Palmer JH (1964) Comparative study on the effects of applied indoleacetic acid and horizontal orientation of the primary shoot, upon internode extension and petiole orientation in Helianthus annuus, and the modifying influence of gibberellic acid.
	www.plantphysiol.org /cgi/content/full/132/1/282 (6053 words)

	Botany online: Features of Flowering Plants - Leaves
		A leaf is an aerial and lateral outgrowth of the stem of a usually flat and dorsiventral anatomy.
		It functions mainly to manufacture food by photosynthesis and consists typically of a stalk also called petiole, a flattened blade, the lamina, and the leaf base.
		Among these are thorns where the moulding of the blade does not occur and the leaf veins have been strengthened by the deposit of a though material, as well as leaf tendrils that also miss the lamina but have an extremely pliable and tension-proof petiole.
	www.biologie.uni-hamburg.de /b-online/e02/02c.htm (953 words)

	MSN Encarta - Search Results - petiole
		Behind the alitrunk is the narrow petiole, a one- or two-segmented section that forms what appears like a waist.
		The leaf blade is connected to the stem through a narrowed portion called the petiole, or stalk, which consists mostly of vascular tissue.
		Exclusively for MSN Encarta Premium Subscribers--quickly search thousands of articles from magazines such as Time, Newsweek, The Atlantic Monthly, and Smithsonian.
	encarta.msn.com /petiole.html (142 words)

	GULF OF GUINEA CONSERVATION GROUP: Begonias of São Tomé and Príncipe (Site not responding. Last check: 2007-10-14)
		Junction of petiole and leaf blade with a tuft of hairs.
		Plants densely hairy on the stems, petioles, peduncles, axis of the inflorescence, ovaries and fruits.
		crateris particularly the stems, petioles, peduncles, axis of the inflorescence, ovaries and fruits.
	www.ggcg.st /botany/begonias_stp.htm (828 words)

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