Persian lime (Citrus latifolia Tan.) is an important and widely cultivated fruit crop in several regions of Mexico. In recent years, severe symptoms gummosis, stem cankers, dieback were detected the lime-producing region states Veracruz Puebla, The aims this study to identify species Lasiodiplodia associated with these symptoms, determine distribution species, test their pathogenicity virulence on plants. 2015, symptomatic samples collected from 12 commercial orchards, 60 isolates obtained....

The root system of clonal rootstocks has been poorly studied, despite its crucial importance. Roots not only provide support and nutrition to the plant but also contribute tolerance pests, diseases environmental stresses, in addition optimizing yields. Although initial cost is higher, investment offset by reduction phytosanitary treatments, greater longevity trees a lower mortality rate. aim this research was quantify growth five clonally propagated dwarf normal avocado genotypes evaluated...

Pitaya (Stenocereus spp.) is an exotic fruit, which has been consumed since ancient timesby pre-Hispanic cultures. Recently in Mexico, this cactus the target of commercialattention due to pleasant taste their succulent fruits with juicy and sweet pulp, agreat variety colors (white, yellow, purple red fruits). This fruit excellent sensory,nutritional, nutraceutical, agroindustrial medicinal attributes; however, it beenunder-utilized. The high content betalains allows us consider these...

Abstract Mexico is the centre of origin and domestication dahlia, which has widest distribution worldwide as an ornamental plant; however, due to changes in eating habits some sectors population (vegetarians vegans), it also been incorporated ingredient gastronomic field. The aim this research was determine attributes physicochemical quality, antioxidant capacity nutritional value ligulate flowers wild dahlia species. A completely randomized experimental design with five repetitions used....

Maturity at harvest influenced storage life of guava (Psidium guajava L.) fruit kept 3.5, 7, or 11C and 80% 88% RH. Quality characteristics considered were firmness, pH, titratable acidity, ascorbic acid soluble solids concentrations, weight loss. Chilling injury was observed only in guavas harvested the mature-green stage 3.5 7C. The reduced due to fungal attack. best results obtained with color-turning followed by 7C RH for 3 weeks. These fruits had good appearance 5 days after removal...

ABSTRACT Iron (Fe) chlorosis reduces the concentration of photosynthetic pigments, photosynthates, and crop yield. The effect Fe on leaf composition cell structure was evaluated in Mexican lime (Citrus aurantifolia) with different degrees chlorosis. significantly reduced concentrations chlorophylls a, b, a + caused thickening leaves, due to increase palisade spongy parenchyma cells. chloroplasts chlorotic albino leaves showed disorganized ultrastructure; they had an elongated shape...

Potato tuber sugar content is an indicator of management conditions during crop growth, since it affects the degree maturity, quality and sprouting. In this study, potato growth yield under field were assessed. Soluble in tubers at different physiological ages was determined, as effect these sugars have on seed-tuber sprouting storage. To end, four samplings carried out cultivars: one dormancy three ages. Determinations made using high-performance liquid chromatography (HPLC). The variety...

Mature sapote mamey (Pouteria sapota Jacq. H.E. Moore & Stearn) fruit were stored at 20 °C for 6 days and 5, 10 15 14 to determine the effect of storage on ripening. Sapote fruits exhibited typical climacteric behavior, with increases in production CO2 ethylene, weight loss, reduction acidity, total phenols, firmness, sugars carotenoids. Pulp color changed, synthesis soluble protein was high, there large catalase, peroxidase polyphenoloxidase activities. Fruit 5 showed lower ethylene...

Este estudio se basó en antecedentes de la aplicación comercial exitosa técnica del injerto, que reduce los daños causados por patógenos suelo y sequía, además mejorar absorción agua nutrientes. Con el fin investigar si crecimiento productividad pepino (Cucumis sativus L.) pueden mejorarse con uso injertos, hizo un experimento invernadero. Los tratamientos fueron: 1) Pepino sin injerto; 2) injertado sobre calabaza pipiana (Cucurbita argyrosperma K. Koch var. stenosperma); 3) chilacayote...

Abstract There are no comparative studies in postharvest quality of Mexican Christmas trees. The objective this study was to identify the best performing cultivated species. experiment done 2004-2005 season with six replications (trees) Abies religiosa, Cupressus lindleyi, Pinus ayacahuite, and Pseudotsuga menziesii; from two provenances (Tlaxcala Veracruz) for last Cultural management similar. Each tree placed under dry conditions according a completely randomized design. Secondary...

La posible extinción de algunas especies no estudiadas como Calia secundiflora (Ort.) Yakovlev signifi ca la pérdida del potencial que rep- resenta el conocimiento sus metabolitos con propiedades medicina- les y interés agronómico. Los estudios fi toquímicos en C. (Ortega) (Fabaceae) se han enfocado hacia los alcaloides, pero aún desconoce su perfil flavonoides. Estos presentes vegetales asocian una capacidad antioxidante natural, epidemiológicos mostrado efectos benéficos para salud humana....

The storage of sapote mamey fruits in plastic films was evaluated to determine the effect on some physical and chemical changes during postharvest. Sapote were collected at physiological maturity stored three films: Ziploc®, KleenPack® PEAKfresh®. Additionally, without used as control. Weight losses, color (brightness, chroma hue), acidity tritable, pH, sugars, carotenoids total phenol evaluated. Control showed daily weight losses 1.9 % ripened 8 days after harvest. sugars soluble solids...

The aim of this work was to study the influence plant density (45, 25, 16 and 8 plants·m-2) on hydroponic greenhouse production Gigant variety potato minitubers larger than 10 mm in diameter physiological growth indicators. With high population (45 leaf area index 13.4 at 75 days after emergence height 45 % higher plants grown plants·m-2. At density, total biomass (67.5 g), tuber number (16.5) (52.5 g) were significantly plants·m-2, with 44.5 g, 10.2 36.8 respectively. absolute rate (AGR)...

Sprouts are a low-cost fresh vegetable that can be grown indoors in any season and contribute many nutrients to the diet. The purpose of this study was evaluate effect sprouting on nutrimental composition total saponin content huauzontle (Chenopodium nuttalliae Saff.), zucchini (Cucurbita pepo L.), canola (Brassica napus L.) amaranth (Amaranthus leucocarpus S. Watson syn. hypochondriacus sprouts. A proximal analysis quantification saponins were performed seeds sprouts from four species....

Sapote mamey is a fruit tree grown in the southwest region of Morelos State, Mexico. Its have great commercial potential, however, there are none Mexican cultivars. In this study, characteristics variability was evaluated, to use it later as basis continue studying selection potentially useful materials for that region. Nineteen were evaluated; based on dimensions, length/diameter ratio; fruit, seed, and pulp weight, well peel thickness, color components (luminosity, chrome hue), total...

The objectives of the present research were to determine effect three substrates on establishment mycorrhizal symbiosis between Glomus mosseae BEG-25 and G. BEG-132 poinsettia plants plant development quality, compare response inoculation with commercial fertilization practiced by growers. consisted of: S1=a mixture leaf mould+ volcanic rock + peat moss perlite (9:3:2:2, v/v); S2=peat vermiculite (2:1, v/v) S3=volcanic rock. Fertilization treatments non-fertilized fertilized Peters® 8-45-14...

The domestication of wild orchids for commercial production is a new endeavor, which may represent sustainable alternative to the collection/harvest from natural populations threatened or endangered orchid species. In present study, growth and nutrition vegetative plants Laelia anceps Lindl. as affected by three components growing medium (peat, volcanic rock, and/or horticultural grade charcoal) nutrient solution concentration, measured osmotic potential (ψ S ), were assessed using mixture...

The objective of the paper was to morphologically characterize fruits and seeds 23 collections nanche (Byrsonima crassifolia (L.) H.B.K.), that originated in state Tabasco, Mexico. Twenty-two digitalized characters were measured with an image analyzer for description. data obtained analyzed SAS NTSYS programs. Three main components explained 84.16% total variability. Five groups defined dendrogram, a Euclidian distance 5.58. Group I has fruit highest Brix degrees percentage pulp; III area,...