Diversity between Jatropha curcas L. accessions based on oil traits and X-ray digital images analysis from it seeds

AUTOR(ES)

Pinto, Milena Silva, Damasceno Junior, Pedro Corrêa, Oliveira, Lucas Couto de, Machado, Adelia Ferreira de Faria, Souza, Marco Andre Alves de, Muniz, Dandara Rêgo, Dias, Luiz Antônio dos Santos

FONTE

Crop Breed. Appl. Biotechnol.

DATA DE PUBLICAÇÃO

2018-09

RESUMO

Abstract Jatropha curcas L. is a species with high potential for the biodiesel production. Therefore, the oil yield and quality from it seeds should be known. This study aimed to estimate the correlation between morphological traits, yield and oil quality evaluated in the seeds, to know the genetic diversity between J. curcas accessions and it behavior regarding to three harvest seasons. For this purpose, X-ray digital images from seeds of 18 accessions were obtained, and the seeds analyzed for external and internal morphological aspects. The same seeds were analyzed for oil yield and quality. In general, the results concerning diversity indicated a narrow genetic base. More rounded and very long seeds had lower oil yield. Larger seeds presented higher oil yield only when their internal cavity was filled by their endosperm. Most of the accessions showed variation regarding the size of the endosperm, yield and oil quality between harvest seasons.

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