
	Where results make sense

Topic: Fruit abscission

Related Topics

fruit abscission

leaf abscission

Apple fruit

List of fruits

date fruit

fruit fly

Lime fruit

Fruit trees

Fruit tree propagation

Fruits Basket

Pruning fruit trees

passion fruit

In the News (Sat 2 Jun 12)

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	fruit - Hutchinson encyclopedia article about fruit (Site not responding. Last check: 2007-10-24)
		Fruits can also be divided botanically into dry (such as the capsule, follicle, schizocarp, nut, caryopsis, pod or legume, lomentum, and achene) and those that become fleshy (such as the drupe and the berry).
		The fruit structure consists of the pericarp or fruit wall, which is usually divided into a number of distinct layers.
		Fruits may be dehiscent, which open to shed their seeds, or indehiscent, which remain unopened and are dispersed as a single unit.
	encyclopedia.farlex.com /fruit (920 words)

	Abscission - Wikipedia, the free encyclopedia
		Abscission (from ab- away from, and scission cutting or severing) is the shedding of a body part.
		It most commonly refers to the process by which a plant intentionally drops one or more of its parts, such as a leaf, fruit, flower or seed, though the term is also used to describe the shedding of a claw by an animal.
		If a leaf is damaged a plant may also abscise it to conserve water or photosynthetic efficiency, depending on the 'costs' to the plant as a whole.
	en.wikipedia.org /wiki/Abscission (172 words)

	Bioline International Official Site (site up-dated regularly)
		Fruit length, fruit diameter, length to diameter ratio were not significantly affected by the treatments and so was the seed number in the fruits which was determined only in 1996.
		Fruit shape is determined by the ratio of the longitudinal length to transverse diameter of the fruit (L:D ratio).
		The fruit length, fruit diameter and fruit length to diameter ratio are not affected by the chemicals used in the present study and therefore fruit shape is also not affected.
	www.bioline.org.br /request?ft02005 (2762 words)

	[No title]
		Fruit is generally small, and comes from a unicarpellate ovary.
		Occurs when an area of the surface of a young fruit is injured, killing the tissue, but surrounding healthy tissue continues to grow and develop.
		Flavedo - the exocarp of a citrus fruit.
	www.uga.edu /fruit/glossary.html (5726 words)

	ETHREL APPLICATION IN TOMATO - M.A. ATTA-ALY - WCHR
		Fruit was then passed through a long period of rapid growth as fruit cells transmit to the stage of CE (Iwahori 1967, N cells transmit to the stage of CE (Iwahori 1967, Nitsch and Nitsch 1961).
		While fruits of the first trial were periodically harvested and analyzed in 4 replicates throughout the subsequent stages of fruit development, fruits of the second trial were left for recording flower or fruit abscission, fruits number / plant, fruit average weight and total fruit yield.
		Fruits of control and ethrel treated flowers, however, reached their basal level, which was comparable to that of AOA level, which was comparable to that of AOA treated flowers, 10 and 18 days after anthesis, respectively (Fig.
	www.agrsci.unibo.it /wchr/wc5/attaaly.html (5991 words)

	FloridaJuice.com - Citrus Industry - Harvesting Research (Site not responding. Last check: 2007-10-24)
		With the application of an abscission agent, the mature fruit is loosened allowing the mechanical harvesters to use a "gentle" shaker setting, which harvests only mature fruit.
		Abscission agents are necessary for loosening the fruit prior to mechanically harvesting.
		Abscission agents allow the machines to run at lower intensity, thus shaking off the mature fruit loosened by the chemical and leave behind the next season's crop.
	www.floridajuice.com /gr_research_harvesting.php (449 words)

	3. PLANT DEVELOPMENT AND WEATHER AND SOIL RELATIONSHIPS (Site not responding. Last check: 2007-10-24)
		Fruit weight is related to weather and tree culture, and ranges from 15 to 35 g for different cultivars.
		Fruit were 10 percent smaller in the unirrigated trees than in control trees, but the number of fruit was more than double in the dry treatment (26 fruit per panicle compared with 12 fruit per panicle in the controls).
		Fruit drop in sub-tropical Australia was not related to rainfall after fruit set in irrigated orchards, although higher rainfall would be expected to increase relative humidity.
	www.fao.org /DOCREP/005/AC681E/ac681e05.htm (7262 words)

	A STUDY OF AVOCADO TREE CARBOHYDRATE CYCLES TO DETERMINE WAYS OF MODIFYING ALTERNATE BEARING
		In the avocado the perpetuation of this trend is directly related to the depletion of assimilates by the high fruit load of an on-year, followed by a recuperation year which then usually results in the next overload of fruit for an on year, and so on.
		Early fruit abscission was associated with very low carbohydrate reserve levels in the tree after harvest (Figure 1) and an inability of the tree to replenish its reserves in time for the flower initiation, flowering and/or fruit set stages.
		Fruit abscission was hot correlated to the carbohydrate reserve levels at the time of abscission, as by then the potential off-year trees had, in most instances, achieved a higher carbohydrate reserve level than the potential on-year trees.
	www.avocadosource.com /WAC3/WAC3_p080.htm (978 words)

	FLOWERS, FRUITLETS AND FRUIT DROP IN AVOCADO TREES
		The relationship between abscission and some meteorological factors showed that the buds and flowers drop was mostly affected by wind speed while fruitlets abscission was influenced by low temperatures and especially by relative humidity (Table 1).
		Abscission was relatively high in ‘Ettinger’ and ‘Hass’ but quite low in ‘Fuerte’, also, the waves of abscission varied.
		Therefore, the final number of fruits can not be directly related to the number of flowers, and a “natural” variation of 5% in the absolute number of flowers means a difference of 12-60.000 flowers per tree while only 300 fruits per tree are estimated as a good crop.
	www.avocadosource.com /WAC4/WAC4_p095.htm (1840 words)

	CREC - Abscission - Home
		Although a mechanical harvesting and abscission program was conducted from the 1960s to the 1980s, no mechanical harvesting system was commercially adopted and no abscission material was registered for use.
		In addition to this advantage, it is believed that an abscission material will enable quick release of mature fruit from the tree, increasing capacity of mechanical harvesters, and at the same time, reducing the potential for tree damage associated with longer harvester-tree interactions.
		Further, a more linear path of fruit fall will occur when fruit are loosened with an abscission material, enabling the capture of a higher percentage of harvested fruit in a catch frame of a mechanical harvester.
	www.lal.ufl.edu /abscission (825 words)

	The Olive Press Autumn 2004: Fruit set—what happened this year? (Site not responding. Last check: 2007-10-24)
		Consequently, if you had good flowering levels almost every year and your fruit set is lower than normal, there is a strong chance that the lack of pollinators is the main cause of your problem.
		This ovary growth seemed to trigger young fruit abscission, affecting mainly those pistils unable to reach three to four times their initial size.
		The coincidence of abscission with the start of ovary growth and the size of the abscised fruit suggest that fruit abortion in olives is primarily related to the ability of pistils to acquire maternal resources.
	www.australianolives.com.au /TOP/Autumn04.htm (1675 words)

	Molecular and Genetic Characterization of a Non-Climacteric Phenotype in Melon Reveals Two Loci Conferring Altered ...
		Fruit ripening and abscission are associated with an ethylene burst in several melon (Cucumis melo) genotypes.
		Tissues were from seven stages of fruit development (30, 35, 36, 37, 38, 39, and 41 DAP) for Védrantais climacteric line or from 6 stages (30, 35, 40, 45, 50, and 60 DAP) for the non-climacteric PI 161375 line.
		Fruit abscission was evaluated only on the RIL Védrantais × PI 161375 population, whereas hook curvature was evaluated on the RIL and BC1 (Védrantais × PI 161375) × PI 161375 populations.
	www.plantphysiol.org /cgi/content/full/129/1/300 (4890 words)

	Fruit Ripening (Site not responding. Last check: 2007-10-24)
		In prior discussions, we have learned how the fruit grows to achieve full size, and that there are a diversity of fruit types among the flowering plants.
		The fruit is full size but it is green and immature...events must now happen to cause it to ripen so that it is attractive and rewarding for an animal to carry it off...dispersing the seeds.
		Just like the abscission zone in the pedicel of the fruit, the petiole has cells that get the same signals as the leaf blade, produce the enzymes, come unglued from each other.
	koning.ecsu.ctstateu.edu /plants_human/fruitgrowripe.html (1223 words)

	Thinning & PGRˆs
		Fruit russet on Golden Delicious is a common problem in humid growing areas.
		Promalin applied to 1-year-old branches of apples when there is 1 to 3 inches of new shoot growth and cherries either in the nursery or orchard just prior to bud swell will release buds from apical dominance and force them to grow.
		Treatment of fruit with MCP allows fruit stored in regular storage to hold firmness as well as fruit stored in conventional controlled atmosphere storage.
	hortweb.cas.psu.edu /courses/hort432/lecturenotes/pgr.html (1093 words)

	UC IPM: Plant Growth Regulators in Citrus: General Informaton
		2,4-D is used mainly to delay and reduce unwanted fruit abscission (fruit drop), GA is used mainly to delay senescence (overripening), and NAA is used to promote abscission of excess fruit (thinning to increase the size of the remaining fruit) and to inhibit the growth of suckers on the trunk.
		In contrast, this effect is desirable for late-harvested fruit because it delays rind senescence and gives fruit that are paler in color than the deeper-colored fruit from untreated trees.
		Recommendations are also included in these guidelines for using GA to delay lemon and lime fruit maturity, to delay aging and rind softening of tangerine (mandarin) hybrids, and as a fruit-setting agent for clementine mandarin.
	www.ipm.ucdavis.edu /PMG/r107900111.html?printpage (1600 words)

	Research Publications Menu
		Improving the efficacy of abscission sprays for mechanical harvesting of oranges.
		Young fruit and auxin transport inhibitors affect the response of mature ‘Valencia’ orange fruit to abscission materials via changing endogenous plant hormones.
		Temperature factor affecting the abscission response of mature fruit and leaves to CMN-Pyrazole and Ethephon in ‘Hamlin’ oranges.
	fas.ifas.ufl.edu /Report/ResearchPublications/CitrusREC-LakeAlfred.html (2418 words)

	Polygalacturonases: Many Genes in Search of a Function -- Hadfield and Bennett 117 (2): 337 -- PLANT PHYSIOLOGY
		fruit softening of Charentais melon is the consequence of the
		Avocado fruit have high levels of PG activity that are temporally correlated to solubilization and depolymerization of polyuronides
		Abscission is the consequence of the dissolution of cell
	www.plantphysiol.org /cgi/content/full/117/2/337 (5168 words)

	ROLE OF CELL WALL HYDROLASES IN TOMATO FLOWER ABSCISSION (Site not responding. Last check: 2007-10-24)
		To analyze cell wall endo-B-1,4-glucanases responsible for flower abscission in tomato, total RNA isolated from abscising flower abscission zones was reverse transcribed and amplified by polymerase chain reaction (PCR) using short degenerate primers to conserved amino acid sequences of avocado fruit, ripe tomato fruit and bean abscission zone cellulases.
		A quantitative indicator of the role of each gene in flower abscission was obtained using the ribonuclease protection assay (RPA), which is an extremely sensitive procedure for the detection and quantitation of low abundance mRNAs.
		Results suggest that the four abscission zone cellulose genes homologous with fruit cellulases are expressed in non-abscising abscission zones and accumulate to higher levels in the presence of ethylene.
	www.nal.usda.gov /pgdic/pggrantinfo/1994/9161044.html (427 words)

	Part 1 Cultural Information - Chemical Thinning of Apples (Site not responding. Last check: 2007-10-24)
		Current thinking suggests that fruit abscission may be due to a temporary carbohydrate shortage.
		This period coincides with petal fall, when fruit is approximately 5 mm in diameter, to when it is approximately 20 mm in diameter.
		Research has shown that the earlier fruit is removed from the tree, the larger the remaining fruit become and the better the returning bloom.
	tfpg.cas.psu.edu /part1/part14c.htm (2070 words)

	Department of Horticulture Faculty Directory
		Apple Fruit Abscission - Experiments are being conducted to identify the factors influencing fruit abscission at thinning time and at harvest time.
		Light and Fruit Quality - Studies are being conducted to determine the influence of light and canopy position on ground color and overcolor development of peach fruit.
		Incidence of diseases on fruit of nine apple genotypes as influenced by six fungicide treatments.
	hortweb.cas.psu.edu /dept/faculty/marini/marini.html (863 words)

	Characterization of two putative ethylene receptor genes expressed during peach fruit development and abscission -- ...
		The abscission was induced by fruit embrioctomy or leaf deblading and subsequently the activated explants were flushed with air or air+propylene (500 µl l
		This correlates with the acceleration of abscission induced
		Mathooko MF, Tsunashima Y, Owino WZO, Kubo Y, Inaba A. Regulation of genes encoding ethylene biosynthetic enzymes in peach (Prunus persica L.) fruit by carbon dioxide and 1-methylcyclopropene.
	jxb.oxfordjournals.org /cgi/content/full/53/379/2333 (3935 words)

	DPVTA - Giannina Vizzotto Home page
		Sugar metabolism in peach fruit during maturation and ripening: physiological characterization of the main enzymes involved in sucrose metabolism, study of the expression pattern of sucrose hydrolitic enzymes during fruit development and ripening
		Fruits crops for the Diploma in Viticulture and Oenology (1997-98)
		Fruit crops for the 'Laurea' in Agricultural Science (2001-)
	www.dpvta.uniud.it /~Vizzotto (731 words)

	ISOLATION OF ETHYLENE-INDUCED MAP KINASE GENES FROM CITRUS FRUIT ABSCISSION ZONE
		Treatment of citrus fruit abscission zone with exogenous ethylene induces cell proliferation and the production of cellulases and polygalacturonases.
		By utilizing RT-PCR technology with degenerate primers corresponding to conserved regions of serine/threonine protein kinase genes and mRNA from ethylene treated citrus fruit abscission zone, we isolated truncated genes that are homologous to plant and mammalian serine/threonine protein kinase genes.
		The results obtained suggest that the genes identified are involved in response to ethylene in citrus fruit abscission zone and that MAP kinase genes might play, among other functions, a role in the abscission process.
	www.actahort.org /books/463/463_6.htm (287 words)

	Definitions
		This is the phase where the plant is growing nice fat leaves.
		When the plant gets to the stage where it is saving energy for flower or fruit production, this is called a transition stage.
		The flavorful colored skin of the citrus fruits, minus the white underlying pith, which is bitter.
	www.mountainvalleygrowers.com /definitions.htm (3851 words)

	Regulation of fruit dehiscence in Arabidopsis -- Ferrándiz 53 (377): 2031 -- Journal of Experimental Botany
		Fruit dehiscence is a strategy that many fruits adopt to achieve
		Fruits have evolved to mediate the maturation and dispersal
		Sander L, Child R, Ulvskov P, Albrechtsen M, Borkhardt B. Analysis of a dehiscence zone endo-polygalacturonase in oilseed rape (Brassica napus) and Arabidopsis thaliana: evidence for roles in cell separation in dehiscence and abscission zones, and in stylar tissues during pollen tube growth.
	jxb.oxfordjournals.org /cgi/content/full/53/377/2031 (4754 words)

	Chemda Degani
		Reproductive biology of subtropical fruit trees, with emphasis on the role of the pollen parent in pollination, fruit set and fruit abscission processes.
		Pollen parent effect on outcrossing rate, yield and fruit characteristics of 'Fuerte' avocado.
		Degani, C., El-Batsri, R. and Gazit, S. Outcrossing rate, yield and selective fruit abscission in ‘Ettinger’ ‘Ardith’ avocado plots.
	www.agri.gov.il /Horticulture/TreeSci/ChemdaDegani.html (657 words)

	Ethylene
		highest levels are in ripening fruit, senescing tissues, wounded tissue
		The gene for ACC synthase is induced by ethylene, therefore - once it is initially induced, the ethylene it produces then feeds back and further induces ACC synthase gene expression - this is how one can detect rapid, large spikes in ethylene synthesis
		ethylene (NOT abscisic acid) is the primary trigger inducing leaf and fruit abscission = breakdown of cells in a specific region of stem / petiole for shedding
	www.esf.edu /efb/course/EFB530/lectures/ethylene.htm (694 words)

	COUNTERACTING FRUIT ABSCISSION DUE TO FEEDING TO COTTON FLEAHOPPER BY THE APPLICATION OF THE PLANT GROWTH REGULATOR ...
		Cotton fleahopper (CFH) feeds on young squares (fruit buds) of cotton by injecting hydrolytic enzymes and withdrawing the pre-digested contents.
		The objective of this study was to investigate the use of TDZ to counteract the hormone disruption in the plant due to feeding by cotton fleahopper and thus reduce the subsequent loss of fruit buds.
		However, feeding by CFH may result in significant destruction of internal bud tissue due to the injection of digestive enzymes, and this injury may lead to bud abscission regardless of plant hormone effects.
	www.cottoninc.com /projectsummaries/detail.asp?projectID=226 (344 words)

	A wound- and systemin-inducible polygalacturonase in tomato leaves -- Bergey et al. 96 (4): 1756 -- Proceedings of the ...
		A comparison of the amino acid sequences of tomato leaf PGcat subunit with fruit PGcat subunit, tomato abscission zone PG, and a tomato PG with unknown expression.
		Comparisons of the percent identities of the amino acid sequence of tomato leaf PGcat subunit with tomato leaf PG, tomato fruit PG, tomato abscission zone PG, and a PG subunit of unknown expression
		as the conditions during fruit ripening suggest (4).
	www.pnas.org /cgi/content/full/96/4/1756 (3283 words)

Try your search on: Qwika (all wikis)