Moisture correction in pods of cowpea genotypes to estimate yield

Autores

  • Wener Santos de Almeida Universidade Federal do Ceará - UFC
  • Francisco Linco de Souza Tomaz Universidade Federal do Ceará - UFC
  • Linda Brenna Ribeiro Araújo Universidade Federal do Ceará - UFC
  • Antônio Moreira Barroso Neto Universidade Federal do Ceará - UFC
  • Cândida Hermínia C. de Magalhães Bertini Universidade Federal do Ceará - UFC

DOI:

https://doi.org/10.15361/1984-5529.2020v48n4p339-345

Resumo

Moisture correction of fresh pods of cowpea genotypes has been used to correct weight differences of pods from the same harvest. Correction is made by the method of soaking pods and grains in water. This study verifies the need for moisture correction of fresh pods to estimate the yield of cowpea genotypes for production of green grains. Sixteen genotypes were evaluated for pod mass, grain mass, hundred grains mass, grain index, pod yield, and grain yield in two municipalities, Pentecoste and Marco, Ceará State, Brazil. For moisture correction, a sample of ten fresh pods was collected, weighed, and soaked in water. Samples were weighed until constant weight for wet mass. Subsequently, samples were dried in a forced air circulation oven and dry mass was obtained. Finally, a correlation study between the obtained data was performed. Correlation estimates were positive from low to medium magnitude. Correlations of greater magnitude were observed between fresh and dry masses. The original data showed greater representativeness of dry mass, indicating greater experimental precision. Therefore, moisture correction of fresh cowpea grains and pods proved to be unnecessary.

Biografia do Autor

Wener Santos de Almeida, Universidade Federal do Ceará - UFC

Departamento de Fitotecnia

Programa de Pós-Graduação em Agronomia/Fitotecnia

Genética e Melhoramento de Plantas

Francisco Linco de Souza Tomaz, Universidade Federal do Ceará - UFC

Departamento de Fitotecnia

Programa de Pós-Graduação em Agronomia/Fitotecnia

Genética e Melhoramento de Plantas

Linda Brenna Ribeiro Araújo, Universidade Federal do Ceará - UFC

Departamento de Fitotecnia

Programa de Pós-Graduação em Agronomia/Fitotecnia

Genética e Melhoramento de Plantas

Antônio Moreira Barroso Neto, Universidade Federal do Ceará - UFC

Departamento de Fitotecnia

Programa de Pós-Graduação em Agronomia/Fitotecnia

Genética e Melhoramento de Plantas

Cândida Hermínia C. de Magalhães Bertini, Universidade Federal do Ceará - UFC

Departamento de Fitotecnia

Programa de Pós-Graduação em Agronomia/Fitotecnia

Genética e Melhoramento de Plantas

Publicado

22/12/2020

Edição

Seção

Fitotecnia - Crop Production