Evaluation of germplasm Capsicum collection against to Xanthomonas campestris pv. vesicatoria (Doidge) Dye

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Clasificación de la colección de Capsicum spp. de acuerdo a la resistencia frente a la mancha bacteriana en condiciones de infección natural.
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Published: Sep 22, 2008

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Odalys Barrios
Instituto de Investigaciones Fundamentales en Agricultura Tropical “Alejandro de Humboldt”
Maribel González-Chávez
Instituto de Investigaciones Fundamentales en Agricultura Tropical “Alejandro de Humboldt”
Gloria Acuna
Instituto de Investigaciones Fundamentales en Agricultura Tropical “Alejandro de Humboldt”
Sergio Abreu
Instituto de Investigaciones Fundamentales en Agricultura Tropical “Alejandro de Humboldt”
Dalila de Armas
Instituto de Investigaciones Fundamentales en Agricultura Tropical “Alejandro de Humboldt”

Abstract

138 accessions from the Capsicum collection of the INIFAT genebank belonging to the species



  1. annuum , C. chinense y C. frutescens were studied. The cultivars were evaluated using the qualitative characters: Fruit type and Pungency and the quantitative character: Infection rate against Xanthomonas campestris pv. vesicatoria. The behavior of the accessions were registered during two years in different evaluation moments, using a susceptible control 'California Wonder' for the comparison of the diseases development. The climatic variables were considered too, temperature, humidity, weed speed and rains. The data obtained were processed using a Factorial Analysis of Simple Correspondence in order to the germplasm classification and the best cultivars were selected. The average values of temperature and humidity 24.7 oC y 87.5%, also the weed speed between 6.9 y 7.3 km/h facilitated the bacterial spot incidence. They were formed thirteen interest groups; seven of them, belong to the C. annuum species, four belong to

  2. frutescens and two belong to C. chinense. A wide variability was observed in the germplasm studied; 46 accessions showed that very low visible sign of susceptibility; what represents that 33% germplasm evaluated offers resistance to the bacterial spot under natural infection conditions, for what they constitute valuable cultivars for genetic improvement programs.

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Evaluation of germplasm Capsicum collection against to Xanthomonas campestris pv. vesicatoria (Doidge) Dye. (2008). Agrotecnia De Cuba, 32(2), 43-54. https://agrotecnia.edicionescervantes.com/index.php/agrotecnia/article/view/577
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Vol. 32 No. 2 (2008): July-December
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Original Articles
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How to Cite

Evaluation of germplasm Capsicum collection against to Xanthomonas campestris pv. vesicatoria (Doidge) Dye. (2008). Agrotecnia De Cuba, 32(2), 43-54. https://agrotecnia.edicionescervantes.com/index.php/agrotecnia/article/view/577

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