ACCELERATED AGING OF Piptadenia moniliformis (BENTH.) SEEDS

Authors

DOI:

https://doi.org/10.1590/1983-21252018v31n317rc

Keywords:

Fabaceae. Vigor. Forest seeds.

Abstract

The accelerated aging test consists of evaluating the vigor of the seeds under conditions of high temperature and humidity, with the purpose of identifying the physiological quality of lots with similar germination. The objective of this study was to evaluate the efficiency of the accelerated aging test for classifying seed lots of P. moniliformis at different levels of vigor. Initially, the seed lots were assessed by means of seedling emergence, life velocity index, shoot length and root length, total dry mass of seedlings and determination of water content, before and after each period of aging. The experimental design for the whole world was based on a 3 × 4 factorial scheme (three seed lots and four periods of 24, 48, 72 and 96 h duration), with separate evaluations at temperatures of 38 °C and 41 °C. The accelerated aging test conducted at a temperature of 41 °C for 24 h was a more suitable combination for separating batches of P. moniliformis according to different levels of vigour, and made it possible to obtain results similar to the classification of lots in relation to the initial quality.

Author Biographies

  • Gutierres Silva Medeiros Aquino, Department of Agronomics and Forests Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN
    Aluno da Graduação em Engenharia Florestal, Bolsista de Iniciação Científica do Laboratório de Análise de Sementes da UFERSA
  • Kleane Targino Oliveira Pereira, Department of Agronomics and Forests Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN
    Mestranda em Fitotecnia na UFERSA.
  • Paulo César da Silva Santos, Department of Agronomics and Forests Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN
    Aluno da Graduação em Engenharia Florestal, Bolsista de Iniciação Científica do Laboratório de Análise de Sementes da UFERSA
  • Jéssica Christie Dantas de Oliveira, Department of Agronomics and Forests Sciences, Universidade Federal Rural do Semi-Árido, Mossoró, RN
    Aluno da Graduação em Agronomia, Bolsista de Iniciação Científica do Laboratório de Análise de Sementes da UFERSA

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Published

28-05-2018

Issue

Section

Forest Science