Morpho-agronomic assessment of introductions of butternut squash (Cucurbita moschata Duch.) from Central America

A Central American collection of butternut squash (Cucurbita moschata Duch.) was characterized based on a series of morpho-agronomic descriptors and its variability assessed. Floral asynchrony ranging from 10 to 15 days was observed between staminate and pistillate flowers. Differences were also obs...

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Published inRevista Facultad Nacional de Agronomía, Medellín Vol. 70; no. 1; pp. 8057 - 8068
Main Authors Vásquez Gamboa, Giomara, Ortiz Grisales, Sanín, Vallejo Cabrera, Franco Alirio, Salazar Villarreal, Fredy Antonio
Format Journal Article
LanguageEnglish
Portuguese
Published Bogota Universidad Nacional de Colombia 01.01.2017
Facultad de Ciencias Agrarias - Universidad Nacional de Colombia
Universidad Nacional de Colombia, Sede Medellín
Subjects
Agricultural production
Agronomic characters
AGRONOMY
Germplasm
Multivariate analysis
Plant morphology
Plant populations
Selective breeding
Squashes
Vegetables
Central America
Germplasm
Agronomic characters
Plant morphology
Squashes
Características agronómicas
Germoplasma
Análisis multivariado
Morfología vegetal
Multivariate analysis
Ahuyama
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Summary:A Central American collection of butternut squash (Cucurbita moschata Duch.) was characterized based on a series of morpho-agronomic descriptors and its variability assessed. Floral asynchrony ranging from 10 to 15 days was observed between staminate and pistillate flowers. Differences were also observed among introductions for all quantitative characteristics evaluated (P<0.01). An interaction between introduction and planting cycle (P<0.05) was observed for 50% of the evaluated variables: fruit weight, polar diameter of fruit, wall thickness of fruit, fruit color, days to harvest, and total fruit seed weight. Cluster analysis revealed that groups 3 and 5 gathered introductions presenting high yields and larger, heavier fruits. Group 4 gathered introductions with intermediate yields, high seed production, and thick fruit walls. In all cases, genetic improvement aiming to increase the production of fruit for fresh consumption or agro-industrial purposes as well as the production of oilseed should use introductions from groups 3 and 5 in well-planned crossings with introductions from group 4.
ISSN:0304-2847
2248-7026
2248-7026
DOI:10.15446/rfna.v70n1.61764