Adventitious juice vesicle initiation in lemon (Citrus limon L.), mandarin (Citrus reticulata Blanco), sour orange (Citrus aurantium L.), and sweet orange (Citrus sinensis (L.) Osb.) fruit explants

1988 ◽  
Vol 44 (8) ◽  
pp. 722-724 ◽  
Author(s):  
B. Tisserat ◽  
D. Jones ◽  
P. Galletta
Keyword(s):  
Citrus Sinensis ◽  
Sweet Orange ◽  
Citrus Limon ◽  
Citrus Reticulata ◽  
Sour Orange ◽  
Citrus Aurantium ◽  
Citrus Reticulata Blanco ◽  
Fruit Explants

scholarly journals Embryogenic calli induction from nucellar tissue of Citrus cultivars

1999 ◽  
Vol 56 (4 suppl) ◽  
pp. 111-1115
Author(s):  
Fernanda Januzzi Mendes-da-Glória ◽  
Francisco de Assis Alves Mourão Filho ◽  
Clarice Garcia Borges Demétrio ◽  
Beatriz Madalena Januzzi Mendes
Keyword(s):  
Citrus Sinensis ◽  
Sweet Orange ◽  
Basal Medium ◽  
Callus Cultures ◽  
Growth Media ◽  
Malt Extract ◽  
Citrus Reticulata ◽  
Embryogenic Calli ◽  
Citrus Reticulata Blanco ◽  
Friable Callus

Nucellar tissues of seven Citrus varieties were introduced onto three growth media to produce embryogenic callus. The media tested were: EME [MT, modified, with the addition of malt extract (500 mg.L-1)]; 1/2-EME [half concentration of MT macronutrients + half concentration of BH3 macronutrients + 500 mg.L-1 malt extract + 1.55 g.L-1 of glutamine]; and EBA [EME + 0.44 muM 6-benzyladenine + 0.04 muM 2,4 D]. Soft friable calli were obtained from 'Cravo' and 'Ponkan' mandarins (Citrus reticulata, Blanco), 'Murcott' tangor (Citrus reticulata Blanco x Citrus sinensis L. Osbeck), 'Serra d'água' and 'Valencia' sweet oranges (Citrus sinensis, L. Osbeck) 120 days after callus induction. 'Natal' and 'Pera' sweet oranges (Citrus sinensis, L. Osbeck) produced hard non-friable calli in this period. EME and 1/2-EME media had the best results for 'Cravo' mandarin, 'Ponkan' mandarin and 'Serra d'água' sweet orange, whereas EBA was the best media composition to induce soft friable calli on 'Murcott' tangor and 'Valencia' sweet orange. Friable callus cultures of 'Cravo' and 'Ponkan' mandarins, and 'Murcott' tangor yielded high quality protoplasts after isolation. Abbreviations: a.c. - activated charcoal; BA - 6-benzyladenine; IAA - indole-acetic acid; 2,4-D - 2,4-diclorophenoxyacetic acid; MT - Murashige & Tucker basal medium.

Indian citrus ringspot virus. [Distribution map].

2015 ◽  
Author(s):  
Keyword(s):  
Citrus Sinensis ◽  
Andhra Pradesh ◽  
Uttar Pradesh ◽  
Ringspot Virus ◽  
Citrus Reticulata ◽  
Citrus Aurantium ◽  
Distribution Map ◽  
Virus Distribution ◽  
New Distribution ◽  
Cleopatra Mandarin

Abstract A new distribution map is provided for Indian citrus ringspot virus. Tymovirales: Alphaflexiviridae: Mandarivirus. Hosts: kinnow (Citrus aurantium × Citrus reticulata), Cleopatra mandarin (Citrus reshni) and navel orange (Citrus sinensis). Information is given on the geographical distribution in Asia (India, Andhra Pradesh, Delhi, Gujarat, Haryana, Karnataka, Maharashtra, Punjab, Rajasthan and Uttar Pradesh).

scholarly journals Levantamento de moscas-das-frutas e seus parasitoides em citros, no município de Viçosa, Minas Gerais

Revista CERES ◽  
2012 ◽  
Vol 59 (6) ◽  
pp. 877-880 ◽  
Author(s):  
Daniel Lucas Magalhães Machado ◽  
Tiago Barbosa Struiving ◽  
Dierlei dos Santos ◽  
Silvana Aparecida da Silva Souza ◽  
Dalmo Lopes de Siqueira
Keyword(s):  
Citrus Sinensis ◽  
Minas Gerais ◽  
Citrus Reticulata ◽  
Citrus Reticulata Blanco ◽  
Anastrepha Fraterculus ◽  
Citrus Deliciosa

As moscas-das-frutas são responsáveis por grandes perdas em fruteiras comerciais no Brasil, por isso é fundamental conhecer as espécies predominantes na região. Objetivou-se com este trabalho estudar a ocorrência de moscas-das-frutas (Diptera: Tephritidae) e seus parasitoides em laranjas doces (Citrus sinensis L. Osbeck), tangerina Poncã (Citrus reticulata Blanco) e mexerica Rio (Citrus deliciosa Ten), no município de Viçosa, Minas Gerais. Os frutos foram coletados em abril de 2008. No laboratório eles foram acondicionados em caixas plásticas contendo areia umedecida e em ambiente controlado para obtenção dos pupários, que foram contados, acondicionados em frascos de vidro com areia fina e mantidos em estufa até a emergência dos adultos. Somente uma espécie de mosca-das-frutas (Anastrepha fraterculus (Wiedemann, 1830) e uma de parasitoide (Doryctobracon brasiliensis Szépligeti) foram identificadas. Dentre as variedades, a laranja doce Baianinha apresentou o maior índice de infestação, e os menores foram atribuídos à mexerica Rio e à tangerina Poncã.

Effects of low density polyethylene liners and high-density polyethylene wraps on quality, decay and storage life of lemon and tangor fruits

1985 ◽  
Vol 25 (3) ◽  
pp. 718 ◽  
Author(s):  
PJ Sharkey ◽  
CR Little ◽  
IR Thornton
Keyword(s):  
High Density Polyethylene ◽  
Citrus Sinensis ◽  
Storage Life ◽  
High Density ◽  
Low Density Polyethylene ◽  
Citrus Limon ◽  
Citrus Reticulata ◽  
Low Density ◽  
Cool Storage ◽  
And Storage

Winter-maturing Lisbon lemons (Citrus limon (L.) Burm.f.) and Ellendale tangors (Citrus reticulata x Citrus sinensis (L.) Osbeck) which had been dipped in fungicides and waxed, developed less than 10% rot but remained fresh for only 2-3 months in cool-storage at 10�C and 80-90% RH. High-density polyethylene (HDPE) wraps delayed loss of firmness and peel coloration of tangors and lemons for 5 and 8 months respectively, in cool-storage, but both citrus developed unacceptable levels of rotting within 4 months of harvest. Perforated low-density polyethylene liners were less effective than HDPE wraps for preserving fruit condition but they extended the storage life of lemons until early January (6 months) without incurring levels of decay greater than 10%. However, tangors cool-stored in liners became unsaleable after only 3-4 months owing to loss of acidity and flavour.

Accumulation and Metabolism of Bromacil in Pineapple Sweet Orange (Citrus sinensis) and Cleopatra Mandarin (Citrus reticulata)

Weed Science ◽  
1981 ◽  
Vol 29 (1) ◽  
pp. 1-4 ◽  
Author(s):  
L. S. Jordan ◽  
W. A. Clerx
Keyword(s):  
Citrus Sinensis ◽  
Sweet Orange ◽  
Citrus Reticulata ◽  
Minor Metabolite ◽  
A Minor ◽  
Orange Trees ◽  
Conjugated Metabolites ◽  
Cleopatra Mandarin

Young orange [Citrus sinensis (L.) Osbeck ‘Pineapple sweet orange’] trees are more sensitive to bromacil (5-bromo-3-sec-butyl-6-methyluracil) than young mandarin (Citrus reticulata Blanco ‘Cleopatra mandarin’) trees. Pineapple sweet orange roots absorbed twice as much 14C from bromacil, and accumulated three times as much in the leaves, as did Cleopatra mandarin. The amount of conjugated metabolites formed was the same in the roots of the two cultivars, but twice as much formed in the leaves of Cleopatra mandarin as in the leaves of Pineapple sweet orange. The principle metabolite was 5-bromo-3-sec-butyl-6-hydroxymethyluracil; a minor metabolite was tentatively identified as 5-bromo-3-(3-hydroxyl-1-methylpropyl)-6-methyluracil. No 5-bromouracil was detected. Citrus cultivars differ in their ability to accumulate and metabolize bromacil into conjugated nonphytotoxic compounds.

Differentiation between Flavors of Sweet Orange (Citrus sinensis) and Mandarin (Citrus reticulata)

2017 ◽  
Vol 66 (1) ◽  
pp. 203-211 ◽  
Author(s):  
Shi Feng ◽  
Joon Hyuk Suh ◽  
Frederick G. Gmitter ◽  
Yu Wang
Keyword(s):  
Citrus Sinensis ◽  
Sweet Orange ◽  
Citrus Reticulata

scholarly journals Diversidade de moscas-das-frutas em pomares de citros no município de Araruama, RJ

2008 ◽  
Vol 38 (2) ◽  
pp. 518-521 ◽  
Author(s):  
Jorge Ferreira de Souza ◽  
Silvana Aparecida da Silva Souza ◽  
Elen de Lima Aguiar - Menezes ◽  
Fernando Antônio Abrantes Ferrara ◽  
Stenilson Araújo Nascimento ◽  
...  
Keyword(s):  
Citrus Sinensis ◽  
Ceratitis Capitata ◽  
Citrus Reticulata ◽  
Citrus Reticulata Blanco ◽  
Anastrepha Fraterculus

O objetivo deste estudo foi determinar as espécies de Tephritidae e Lonchaeidae (Diptera: Tephritoidea) de ocorrência em pomares de laranja doce (Citrus sinensis Osbeck) e tangerina (Citrus reticulata Blanco), no município de Araruama, RJ, durante o período de dezembro de 2002 a novembro de 2003. Os espécimes foram coletados em armadilhas McPhail contendo solução aquosa de proteína hidrolisada a 5% e em amostras de frutos de seis variedades de citros. Nas armadilhas, o total de 2.543 adultos de Tephritoidea (1.430 fêmeas e 1.023 machos) foi capturado, sendo dez espécies de Tephritidae, quatro espécies e dois morfotipos de Lonchaeidae. Dos Tephritidae e capturados nas McPhail, quatro espécies (Anastrepha fraterculus, A. obliqua, A. sororcula e Ceratitis capitata) infestaram frutos cítricos, enquanto que, dos Lonchaeidae, somente os morfotipos não infestaram as amostras de citros. Os resultados demonstram que a densidade populacional das moscas-das-frutas pode ser superestimada, quando baseada no número de moscas por armadilha, devido à captura de espécies que não infestam os frutos de interesse comercial.

scholarly journals Uso de reguladores de crescimento para incrementar la productividad de mandarino 'clemenules'

2007 ◽  
Vol 29 (1) ◽  
pp. 48-56 ◽  
Author(s):  
Víctor Antonio Rodríguez ◽  
Silvia Matilde Mazza ◽  
Gloria Cristina Martínez ◽  
Luis Alvarenga ◽  
Analía Beatriz Píccoli ◽  
...  
Keyword(s):  
Citrus Sinensis ◽  
Poncirus Trifoliata ◽  
Citrus Reticulata ◽  
Citrus Reticulata Blanco

La finalidad de este trabajo fue evaluar el efecto del Quinmerac, comparativamente con 2, 4-D y nitrato de potasio, en la productividad de mandarino 'Clemenules' (Citrus reticulata Blanco), a través del incremento del porcentaje de frutos con mayor tamaño (destino a mercado fresco), y a la vez determinar posibles efectos indeseables sobre la calidad de los frutos y presencia de fitotoxicidad por dos años sucesivos de aplicaciones sobre las mismas plantas. Durante las campañas 1998/99 y 1999/00, se trabajó en dos lotes de mandarino 'Clemenules' de siete años de implantados, injertados sobre trifolio (Poncirus trifoliata Raf.) uno y sobre citrange 'Troyer' (P. trifoliata x Citrus sinensis Osbeck) el otro, en Mburucuyá, Corrientes, en un suelo Psammacuent típico. Los tratamientos utilizados fueron: testigo sin aplicación; Quinmerac (10%), 10 mg.L-1; Quinmerac (10%), 15 mg.L-1; 2, 4-D (31%), 20 mg.L-1 (1998/99) y nitrato de potasio (14%N, 39% K), 2,5 g.L-1 (1999/2000). Los productos se asperjaron foliarmente, con volumen de solución de 2,5 L.planta-1. Quincenalmente se observaban las plantas en ensayo para detectar síntomas de fitotoxicidad. En la cosecha, se determinó la producción de frutos, clasificada en dos categorías por tamaño; la calidad externa por el aspecto de la corteza e interna mediante porcentaje de jugo, grados Brix, acidez y ratio. Los tratamientos con Quinmerac y nitrato de potasio incrementaron entre un 10 y un 15% la proporción de frutos con tamaño adecuado para mercado fresco. No se detectaron efectos en la producción total, disminución de la calidad de los frutos, ni fitotoxicidad.

Sign in / Sign up

Export Citation Format

Share Document