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Bioactive compounds and antioxidant activity of jabuticaba var. Pingo de mel during its physiological development Ciênc. Tecnol. Aliment.
GARCIA,Lismaíra Gonçalves Caixeta; SILVA,Flávio Alves da; ASQUIERI,Eduardo Ramirez; BOAS,Eduardo Valério de Barros Vilas; DAMIANI,Clarissa.
ABSTRACT The bioactive compounds and in vitro antioxidant activity of jabuticaba fruits var. Pingo de mel were evaluated during their physiological development. The fruits were harvested ten days after anthesis until maturity, at intervals of four days between collections. The period between anthesis and maturity was 34 days. Higher phenolics levels, hydrolysed tannins, and antioxidant activity were observed in 10 days after anthesis, while vitamin C contents were higher throughout the ripening process. At the end of development (34 days), higher levels of vitamin C and lower hydrolysed tannin were observed. It is known that the lower the hydrolysed tannins, the better the sensory characteristics of the fruit, and considering the benefits of vitamin C, it...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthesis; Myrciaria sp.; Vitamin C; Hydrolysed tannins.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600556
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Cuticle and cuticular wax development in the sunflower (Helianthus annuus L.) pericarp grown at the field under a moderate water deficit Phyton
Franchini1,MC; Hernández,LF; Lindström,LI.
Wax in the sunflower (Helianthus annuus L.) pericarp is an important morphological feature that interferes with oil quality and varies with crop management and environmental conditions. We studied the effect of a moderate water deficit (MWD) generated from early to late anthesis on quantitative development of the cuticle, and qualitative and quantitative development of the cuticular waxes (CW) of the pericarp in two hybrids grown under field conditions. The experiment was repeated during two consecutive seasons (Exp-I and Exp-II). At harvest maturity (HM), plants grown under a MWD showed higher CW content (31 to 47%) and thicker cuticles (13%) in both experiments compared to controls. Epicuticular wax (ECW) crystals showed a granular morphology. Also a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cuticular waxes; Oil quality; Crop management; Hull; Anthesis; Harvest Maturity; Hybrid; Helianthus annuus L..
Ano: 2010 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572010000200007
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Evaluation of floral characteristics of melon hybrids (Cucumis melo l.) in pollinator attractiveness. Repositório Alice
KIILL, L. H. P.; FEITOZA, E. de A.; SIQUEIRA, K. M. M. de; RIBEIRO, M. de F.; SILVA, E. M. S. da.
Floral morphology and biology are important characteristics for plant-pollinator interactions and may influence the behavior of these agents. This study aimed to determine which floral attributes of different melon hybrids influence this interaction and, consequently, their attractiveness in simultaneous crops. The study was conducted in the region of Petrolina, State of Pernambuco (PE)/Juazeiro, State of Bahia (BA) and Mossoró, State of Rio Grande do Norte (RN), in areas with the following melon hybrids: Yellow type, Piel de Sapo, Cantaloupe and Galia. For studies on floral morphology and biology, hermaphrodites and male flowers of each hybrid were analyzed for their size and nectar chamber size, pollen and nectar production, anthesis time and flower...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Biologia floral; Pólen; Recurso floral; Melão; Polinização; Nectar; Cucurbitaceae; Anthesis; Nectar; Floral resources.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1048472
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EVALUATION OF FLORAL CHARACTERISTICS OF MELON HYBRIDS (Cucumis melo L.) IN POLLINATOR ATTRACTIVENESS Rev. Bras. Frutic.
KIILL,LÚCIA HELENA PIEDADE; FEITOZA,EDSÂNGELA DE ARAÚJO; SIQUEIRA,KÁTIA MARIA MEDEIROS DE; RIBEIRO,MÁRCIA DE FÁTIMA; SILVA,EVA MÔNICA SARMENTO DA.
ABSTRACT Floral morphology and biology are important characteristics for plant-pollinator interactions and may influence the behavior of these agents. This study aimed to determine which floral attributes of different melon hybrids influence this interaction and, consequently, their attractiveness in simultaneous crops. The study was conducted in the region of Petrolina, State of Pernambuco (PE)/Juazeiro, State of Bahia (BA) and Mossoró, State of Rio Grande do Norte (RN), in areas with the following melon hybrids: Yellow type, Piel de Sapo, Cantaloupe and Galia. For studies on floral morphology and biology, hermaphrodites and male flowers of each hybrid were analyzed for their size and nectar chamber size, pollen and nectar production, anthesis time and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthesis; Cucurbitaceae; Nectar; Pollen; Floral resources.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000200604
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Fenología, productividad de calidad de fruto con y sin semilla en Opuntia ficus-indica Colegio de Postgraduados
Hernández Ramírez, Carlos.
El nopal tunero es una alternativa productiva importante para las zonas áridas y semiáridas de México. La superficie de cultivo es de 53 212 ha bajo riego y temporal. Un problema que enfrenta el productor es la estacionalidad de la producción y la presencia de semillas en la pulpa. Investigadores mexicanos han obtenido logros importantes en la producción de tuna sin semilla en Opuntia ficus-índica cv. CP-Azteca de frutos con pulpa color rojo, que también se utilizó en esta investigación que comprende tres temas y que se presentan en tres capítulos. Los objetivos y resultados del trabajo fueron: I) Caracterizar en días y grados día acumulados los períodos desde la emergencia de yemas reproductivas a antesis y a maduración del fruto así como...
Tipo: Tesis Palavras-chave: Opuntia ficus-índica; Antesis; Grados día de desarrollo; Fruto partenocárpico; Radiación fotosintéticamente activa; Uso eficiente del agua Opuntia ficus-indica; Anthesis; Growing degree days; Parthenocarpic fruit; Photosynthetic active radiation; Water use efficiency..
Ano: 2012 URL: http://hdl.handle.net/10521/1036
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Fenología, productividad de calidad de fruto con y sin semilla en Opuntia ficus-indica Colegio de Postgraduados
Hernández Ramírez, Carlos.
El nopal tunero es una alternativa productiva importante para las zonas áridas y semiáridas de México. La superficie de cultivo es de 53 212 ha bajo riego y temporal. Un problema que enfrenta el productor es la estacionalidad de la producción y la presencia de semillas en la pulpa. Investigadores mexicanos han obtenido logros importantes en la producción de tuna sin semilla en Opuntia ficus-índica cv. CP-Azteca de frutos con pulpa color rojo, que también se utilizó en esta investigación que comprende tres temas y que se presentan en tres capítulos. Los objetivos y resultados del trabajo fueron: I) Caracterizar en días y grados día acumulados los períodos desde la emergencia de yemas reproductivas a antesis y a maduración del fruto así como...
Tipo: Tesis Palavras-chave: Opuntia ficus-índica; Antesis; Grados día de desarrollo; Fruto partenocárpico; Radiación fotosintéticamente activa; Uso eficiente del agua; Doctorado; Fisiología Vegetal; Anthesis; Growing degree days; Parthenocarpic fruit; Photosynthetic active radiation; Water use efficiency..
Ano: 2009 URL: http://hdl.handle.net/10521/1371
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Floral biology, pollination requirements and visitors of the brazil nut tree (Bertholletia excelsa Bonpl., Lecythidaceae) in Tome-Assu - PA. Repositório Alice
SANTOS, A. C. S. dos; MAUES, M. M.; CORRÊA, F. da S.; MOURA, T. do S. A. de..
2012
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Agroforestry; Receptive; Viability; Anthesis; Xylocopa frontalis; Biologia floral; Polinização; Castanheira; Tomé-Açu.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/951561
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Heat unit accumulation and inflorescence and fruit development in ‘Ubá’ mango trees grown in Visconde do Rio Branco-MG Rev. Bras. Frutic.
Lemos,Lorena Moreira Carvalho; Salomão,Luiz Carlos Chamhum; Siqueira,Dalmo Lopes de; Pereira,Olinto Liparini; Cecon,Paulo Roberto.
Abstract There are little information in the scientific literature on flowering and fruiting of ‘Ubá’ mango trees. These information enables to know the proportion of hermaphrodite flowers in inflorescence, fruit set percentage and developmental stages of the fruit. In this study evaluations on inflorescence and fruit development of the ‘Ubá’ mango tree (Mangifera indica L.) were carried out, as well as the determination of the required number of heat units for full fruit development. Thirty branches whose terminal buds were swollen were selected from five mango trees. With the aid of a camera and a caliper, the panicle and fruit development were evaluated weekly until full fruit development. A digital thermometer was used to record ambient temperatures...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mangifera indica L.; Heat units; Anthesis; Phenological phases.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000200703
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Horário de antese de flores masculinas e femininas de bacaby (Oenocarpus mapora Karsten). Repositório Alice
FERNANDES, T. S.; OLIVEIRA, M. do S. P. de..
1992
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Bacaby; Melhoramento; Floração; Antese; Oenocarpus mapora; Breeding; Flowering; Anthesis.
Ano: 1992 URL: http://www.alice.cnptia.embrapa.br/handle/doc/394307
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Implementation and Evaluation of an Image Analysis System for Determining Viability of Pollen Grains in Temperate Rice Chilean J. Agric. Res.
Ortega B,Rodrigo; Aresti E,Macarena; Pereira R,Iris.
Geographical and climatic factors limit the production of temperate rice (Oryza sativa L.) in Chile. Large thermal fluctuations of air and water temperatures affect the viability of pollen, causing high levels of spikelet sterility (”blanking”), resulting in reduced yields per hectare. Counting viable pollen grains, at the time of anthesis, may allow determining, ahead, whether there will be yield losses by spikelet sterility; besides, knowing the potential pollen viability serves as a powerful tool for material selection in breeding programs, and for determining which management factors may influence ”blanking”. If performed manually, counting total and viable pollen grains can be extremely tedious, producing highly variable results. The present work had...
Tipo: Journal article Palavras-chave: Rice crop; Pollen counting; Image analysis; Anthesis; Spikelet sterility.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000100002
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In vitro pollen viability of maize cultivars at different times of collection Ciência Rural
Martins,Emanoel Sanches; Davide,Livia Maria Chamma; Miranda,Gian José; Barizon,Jefferson de Oliveira; Souza Junior,Francisco de Assis; Carvalho,Rafael Pelloso de; Gonçalves,Manoel Carlos.
ABSTRACT: In the present study, we aimed to assess the in vitro viability of pollen grains from maize cultivars collected at different times and days in the field. Four cultivars (Sol da Manhã, XB 6012, XB 8010, and BRS 2020) were evaluated from the second to fifth day of anthesis in three times. Pollen samples were evaluated for their in vitro viability through standard germination test in liquid and solid media and tetrazolium staining. The experimental design was completely randomized, in 4x4x3 split-split plots with four replicates. Data were subjected to analysis of variance followed by a means clustering test and linear regression analysis. The average percentage of viable pollen varied according to the day, collection time, and cultivar. In general,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthesis; Maize pollinization; Zea mays.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000200201
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Influencia da adubacao nitrogenada sobre o vigor e conteudo de proteinas de sementes de quatro cultivares de arroz irrigado. Repositório Alice
COSTA, N.P. da; GOMES, A. da S.; PESKE, S.T.; ZONTA, E.P..
O presente trabalho teve como objetivo principal, testar os efeitos de quatro niveis e quatro epocas de aplicacao de nitrogenio, sobre o vigor e teor de proteinas, de quatro cultivares de sementes de arroz irrigado. As cultivars utilizadas foram EEA-406, IAS-12-9 Formosa, Bluebelle e IRGA-408, que foram testadas nos niveis 30, 60, 90 e 120 kg/ha, aplicados cada um em quatro epocas: na semeadura (epoca 1); 1/3 na semeadura e 2/3 na diferenciacao do primordio floral (epoca 2); no dia e imediatamente antes da inundacao (epoca 3); 5 dias apos a inundacao (epoca 4). Os parametros tomados por base, para avaliacao da qualidade das sementes foram: envelhecimento precoce (vigor) e conteudo de proteinas. O experimento constitui-se de uma atorial sem repeticao,...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Arroz; Semente; Adubacao nitrogenada; Vigor; Proteina; Cultivar; Fertilizante; Antese; Panicula; Envelhecimento precoce; Brasil; Rice; Seed; Protein; Variety; Nitrogen fertilization; Fertilizer; Panicle; Anthesis; Accelerated aging test; Brazil.
Ano: 1983 URL: http://www.alice.cnptia.embrapa.br/handle/doc/444611
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Maturation of Physalis peruviana L. seeds according to flowering and age of the fruit Rev. Ciênc. Agron.
Diniz,Fábio Oliveira; Novembre,Ana Dionisia da Luz Coelho.
ABSTRACT It is important to understand the seed maturation process to determine the time point at which the seeds achieve optimum quality and the ideal time for harvest. This study aimed to study the maturation of Physalis peruviana L. seeds, based on flowering time and age of the fruit. This study was conducted from March to October of 2016 and 2017, in the city of Piracicaba, São Paulo. The plants were cultivated in four blocks using four stems, with spacing of 1.0 m between the plants and of 2.5 m between the rows. As experimental treatments, two flowering time points were defined: 55 and 105 days after transplanting (DAT); in each period, the flowers were marked at the anthesis and the respective fruits and seeds were evaluated at 45, 60, 75, and 90...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cape gooseberry; Physiological maturity; Germination; Anthesis; Harvest.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300447
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Morphology and anatomy of the flower and anthesis of Metrodorea nigra St. Hill. (Rutaceae) BABT
Souza,Luiz A. de; Moscheta,Ismar S.; Mourão,Káthia S. M.; Rosa,Sonia M. da.
Studies on the morphology and anatomy of the flower and anthesis of Metrodorea nigra St. Hill. (Rutaceae) showed perfect flowers, which occurred in panicle. The peak of the flowering was August and September. The anthesis was diurnal and the species presented protandrous flowers. The green sepals and the red petals presented papillose epidermis with stomata and parenchymatic mesophyll. The tetrasporangiate anther presented a papillose epidermis too, endothecium cells with secondary parietal thickenings, two middle layers and binucleate tapetum. The only pistil presented an ovary wall with nectariferous tissue and a meristematic ventral epidermis, a solid style and an inconspicuous stigma. The ovules were anatropous, bitegmic and crassinucelate and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Metrodorea nigra; Rutaceae; Blossom; Anthesis; Protandry; Flower structure.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100014
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Physiological maturity of Physalis angulata L. seeds Rev. Ciênc. Agron.
Santiago,Willen Ramos; Gama,Juliana Simões Nobre; Torres,Salvador Barros; Bacchetta,Gianluigi.
ABSTRACT Determination of seed physiological maturity allows predicting the most appropriate time for harvest, aiming to obtain seeds with high physiological potential. Physalis angulata (Solanaceae) has pharmacological and agro-industrial potential, but there is little information on its reproductive phenology. Thus, this study aimed to evaluate the physiological maturity of P. angulata seeds according to fruit age. Fruits were harvested at 7, 14, 21, 28 and 35 days after anthesis (DAA) and the following evaluations were conducted: fruit weight and diameter, seed moisture content, 100-seed dry weight, 1000-seed weight, electrical conductivity, germination, germination first count, emergence, and seedling dry weight and length. The experimental design was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solanaceae; Anthesis; Harvest; Germination; Physiological potential.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300431
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Pollination of Peltogyne chrysopis: an endemic tree of the Atlantic Forest Acta Botanica
Souza,Isys Mascarenhas; Funch,Ligia Silveira; Queiroz,Luciano Paganucci de.
ABSTRACT Peltogyne chrysopis is an arboreal legume endemic to the Atlantic Forest and known only from the state of Bahia, Brazil. Focal observations were made of anthesis, pollen availability, stigma receptivity, nectar production, and the presence of osmophores and UV-reflective pigments for the species. Floral visitors were also observed and classified based on the timing and frequency of their visits and their foraging behavior. The breeding system was inferred from the pollen-ovule ratio and pollen tube growth after pollination treatments. Peltogyne chrysopis was found to be melittophilous, with anthesis occurring from 02h00min to 05h00min, and protogynous and xenogamous, with flower scent emission and pollen release before sunrise. Xenochlora...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthesis; Compatibility system; Floral rewards; Leguminosae; Melittophily; Pollinator efficiency; Xenochlora nigrofemorata.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300493
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Proximate composition, minerals profile, and predominant sugars by ion chromatograph along the physiological development of jabuticaba var. Pingo de mel Ciênc. Tecnol. Aliment.
GARCIA,Lismaíra Gonçalves Caixeta; SILVA,Flávio Alves da; ASQUIERI,Eduardo Ramirez; BOAS,Eduardo Valério de Barros VILAS; OGANDO,Felipe Iwagaki Braga; AGUIAR,Claudio Lima de; DAMIANI,Clarissa.
Abstract The objective of this study was to characterize jabuticaba fruits for their proximate composition, minerals profile, and predominant sugars during fruit physiological development. The fruits were harvested ten days after anthesis (DAA) until maturity, at intervals of four days between collections. The period between anthesis and maturity was 34 days. An increase in moisture was observed, as for protein and lipids up to 18 DAA, with subsequent reduction until ripening, while an opposite behavior was observed for ash and carbohydrates levels. In general, minerals decreased throughout the fruit development. Regarding the carbohydrates profile, fructose showed the highest concentration, followed by glucose and sucrose, respectively, with an increase...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthesis; Fructose; Glucose; Myrciaria sp.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000500016
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Rice cold tolerance at the reproductive stage in a controlled environment Scientia Agricola
Cruz,Renata Pereira da; Milach,Sandra Cristina Kothe; Federizzi,Luiz Carlos.
Cold tolerance of rice (Oryza sativa L.) during the reproductive stage is important to guarantee high yield under low temperature environments. Field selection, however, does not allow identification of adequate tolerance sources and limits selection of segregating lines due to variable temperature. The objective of this study was to devise methods for distinguishing rice genotypes as to their cold tolerance at the reproductive stage when evaluated under controlled temperature. The effect of cold temperatures was investigated in six rice genotypes at 17°C for varying length of time (three, five, seven and ten days) at two reproductive stages (microsporogenesis and anthesis). Cold tolerance was measured as the percentage of reduction in panicle exsertion...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cold temperature; Microsporogenesis; Anthesis; Panicle exsertion; Spikelet sterility.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000300007
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The anthochron as a building block of flower development PAB
Streck,Nereu Augusto; Schwab,Natalia Teixeira.
Abstract: Plant vegetative development has been widely described using the phyllochron concept, but little effort has been made to describe flower development during the reproductive phase. The objective of this work was to present the anthochron, through a review of the literature, as a building block of flower development, mainly during the flower opening phase. The anthochron is the time interval needed for two subsequent flowers to achieve the same developmental stage, with units of time in days or in ºC day per flower. The concept of anthochron fulfills part of the lack of studies on flower development, since it is considered a building block of the flower opening process. The anthochron can be measured from field experiments or estimated by a simple...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthesis; Development unit; Inflorescence; Reproductive development.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000800899
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荔枝園營養調查與營養診斷研究 Taiwan Agricultural Research Institute
黃維廷; 黃裕銘; 向為民; 張明暉; 林木連; 王鐘和; 吳婉麗; Wei-Tin Huang;Yuh-Ming Huang;Wei-Min Hsiang;Ming-Hui Chang;Mu-Lien Lin;Chong-Ho Wang;Woan-Lih Wu.
[[abstract]]為探討與建立本省荔枝園營養診斷方法,以供肥培改進之依據與參考,本研究應用葉片與土壤分析,針對台中縣、南投縣市及彰化縣約30個荔枝園,於1997年起進行營養與肥培管理調查。品種主為黑葉,次為糯米滋。產量調查及葉片分析結果顯示,產量與葉片氮含量呈二次式相關且葉片氮含量大多高於二次式中產量最高點的葉片氮含量,尤其花期(包括始花,2-4月)葉氮高於1.90%以上時收量減低,由迴歸程式求得最高產量90%之花期葉片氮素含量範圍為1.50-1.90%。至於葉片磷、鎂、鈣及硼含量與收量之迴歸分析則呈正相關,其相關r值 (n = 52) 分別為0.498**、0.561**、0.444**、0.543**,達極顯著(l%)水準。收量60公斤/株以上之植株,其花期(包括始花,2-4月)至謝花著果(5月)之葉片養分狀況,通常磷、鎂、鈣及硼分別為0.09%,0.30%,0.90%及25mgkg -1以上。分析顯示供試果園土壤約85%以上屬極強酸性(pH<5.00)而土壤交換性鈣鎂含量甚低,分別低於500mgkg-1及50mgkg-1。檢討黑葉荔枝葉片之養分季節性變化,花期至謝花著果期間甚平穩,且由於花期之葉片氮、磷與收量之迴歸相關值較謝花著果與著果後一個月者(6月初)大,故選擇花期(2-4月)花穗下段成熟葉片為葉片營養診斷之採樣適期與部位。以葉片要素對收量之影響為基礎,並參酌國內外之文獻,黑葉荔枝葉片養分適宜濃度範圍定為:N:1.50-1.90 %,P:0.12-0.27 %,K:0.70-1.00 %,Ca:0.60-1.00%,Mg:0.30-0.50%,Fe:50-100 mgkg-1,Mn:100-250 mgkg-1,Cu:10-25 mgkg-1,Zn:15-30...
Palavras-chave: 荔枝 花期 採樣方法 葉片養分標準 營養診斷 Lychee; Anthesis; Sampling method; Leaf nutrients standard; Nutrient diagnosis [[classification]]4.
Ano: 1998
Registros recuperados: 20
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