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From three diallelic crossings, among populations with different degree of inbreeding (S0 x S0; S1 x S1; S2 x S2), 11 family with high dry matter, production by plant and fruit quality for consumption in fresh were selected. Two cycles of genetic recombination and selection were carried out. Four selected genotypes were evaluated the Centro Experimental de la Universidad Nacional de Colombia s ...

SUBJECT: zapallo; cucurbita moschata; dry matter; pumpkin; mejoramiento genético

POSTED TO: Acta Agronómica [0120-2812]

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Unapal-Llanogrande, is a pumkin (Cucurbita moschata) breeding population, originated from the second germoplasm colombian colection obtained for Consuelo Montes (2003). The heterogeneous population P-34 was subjected to three cycles of phenotypic recurrent selection that were carried out at Experimental Center of the National University of Colombia, Palmira, Valle del Cauca. Plant production, ...

SUBJECT: zapallo; pumking,; seed breeding; selection; breeding

POSTED TO: Acta Agronómica [0120-2812]

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Presence of plant disease caused by pathogens on 42 clones of Solanum quitoense Lam. were evaluated in the north-western region of Popayán, Colombia. The seed of the clons were planted in plastic bags during three weeks and afterwards transplanted to the field. The statistical design consisted of a complete randomized block design with 4 repetitions, the working sampling plot consisted on 6 pl ...

SUBJECT: fusarium oxysporum; enfermedades de plantas; cladosporium; solanum quitoense lam; phytophthora infestans

POSTED TO: Acta Agronómica [0120-2812]

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In this study four fertilization treatments in lulo crop (Solanum quitoense x S.hirtum) were evaluated, three organic with several manure sources like coffee skin , earthworm residues and chicken manure, and a four treatment consisted of inorganic fertilizer with a composition of 10-30-30 ( N,P,K) and a control without fertilizer applications. A complete block random design with three replicat ...

SUBJECT: abonos compuestos; lulo crop; solanum quitoense; abonos orgánicos; organic fertilizers

POSTED TO: Acta Agronómica [0120-2812]

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The objective of the work was to select genotypes with high quality protein maize (QPM) and adapted to acid soils. Corn populations F2 of QPM were evaluated in the eastern plains of Colombia, by the International Maize and Wheat Improvement Center (CIMMYT) México. Populations were divided in two groups of 70 and 90 genotypes. The experimental designs consisted on a Alpha Lattice of 10x7 and 10 ...

SUBJECT: suelo ácido; llanos orientales de colombia; zea mays l.; gene opaque 2; eastern plain colombia

POSTED TO: Acta Agronómica [0120-2812]

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The relationship among Moisture Regime in an Entic Haplustoll loamy fragmental over fragmental loamy isohiperthermic mixed super active 0-1% ( evaluated three times per week) and forage production ( evaluated during two harvest) was investigated in a cassava forage crop production system in the Cauca Valley department, Colombia. A sowing rate of 40,000, 71,429 and 100,000 plants ha-1, under a ...

SUBJECT: sowing rate; hmc1; densidad de siembra; hmc 1; humedad del suelo

POSTED TO: Acta Agronómica [0120-2812]

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The accelerated Physiological Postharvest Deterioration (PPD) process limits the potential of cassava crop, diminishing its palatability and commercial value within 24-72 hours after harvest. A source of genes for drastic delay of PPD was identified in an inter-specific hybrid (CW429-1) between Manihot esculenta (cultivated cassava) and Manihot walkerae. The aim in this study was to evaluate t ...

SUBJECT: manihot walkerae; deterioro fisiológico poscosecha dfp.; deterioration; manihot esculenta; deterioro

POSTED TO: Acta Agronómica [0120-2812]

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The study was carried out with garlic (Allium sativum L.) cropped in a sandy loam soil in Famatina, La Rioja Argentine. Strips of soil were used with the following soil treatments: T1, a 2-year period with no fertilizers or manure after one year without cropping; T2, a 2-year period with chemical fertilizers (CF) preceded by garlic.); T3, combined use of CF and 23 t ha-1 of goat feces for a 1- ...

SUBJECT: fertilización; aplicación de abonos; abonos compuestos; chemical fertilization.; abonos orgánicos

POSTED TO: Acta Agronómica [0120-2812]

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Low nutrient availability, especially phosphorus (P) and nitrogen (N) supply is the major limitation to forage production in acid infertile soils of the tropics. A field study was conducted at the farm La Esperanza located in Mondomo, Department of Cauca, in the coffee growing zone of Colombia. The main objective was to determine differences in root distribution, nutrient (N, P, K, Ca, Mg and ...

SUBJECT: arachis pintoi; absorción de nutrientes; colombia; hillside; plant nutrition

POSTED TO: Acta Agronómica [0120-2812]

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The effect of vinasse application was assessed on physical properties and dehydrogenases activity in Entic Dystropept and Fluventic Haplustoll of Valle del Cauca, Colombia. To meet the requirements of K+ in sweet corn (Zea mays L.) six treatments were used (T1 = 100% of K+ as vinasse; T2 = 100% of K+ with KCl; T3 = 50% of K+ as vinasse and KCl; T4 = 75% of K+ with vinasse and 25% of K+ as KCl; ...

SUBJECT: actividad enzimática; fluventic haplustoll; organic admendement; typic argiudoll; chemicophysical properties

POSTED TO: Acta Agronómica [0120-2812]

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