Structural and productive features of Panicum cultivars submitted to different rest periods in the irrigated semiarid region of Brazil

Authors

  • Jacqueline dos Santos Oliveira Universidade Federal de Lavras
  • João Virgínio Emerenciano Neto Professor Adjunto Universidade Federal do Vale do São Francisco Campus Ciências Agrárias Rodovia BR 407, Km 12 Lote 543 - Projeto de Irrigação Nilo Coelho - S/N C1 CEP: 56300-000 Petrolina/PE http://orcid.org/0000-0003-3060-9696
  • Gelson dos Santos Difante Universidade Federal do Mato Grosso do Sul
  • Fabio Nunes Lista Universitário da Universidade Federal do Vale do São Francisco
  • Rodrigo da Silva Santos Universitário da Universidade Federal do Vale do São Francisco
  • Jessica Daisy do Vale Bezerra Universitário da Universidade Federal do Vale do São Francisco
  • Breno Ramon de Souza Bonfim Universitário da Universidade Federal do Vale do São Francisco
  • Larissa Bezerra Soares Milhomens Universitário da Universidade Federal do Vale do São Francisco
  • Juliani Stephanie Medeiros Ribeiro Universitário da Universidade Federal do Vale do São Francisco

DOI:

https://doi.org/10.14393/BJ-v35n3a2019-36402

Keywords:

Accumulation rate., Forage mass., Morphological composition.

Abstract

The objective of this study was to evaluate the structural and productive features of Panicum maximum cultivars (Tanzânia, Mombaça, Massai, and Zuri) in three rest periods (30, 45 and 60 days), in the semiarid region of Brazil. The experiment was carried out in a completely randomized design with three replicates. The length of the leaf blade and the diameter of the stem increased as a function of the cut intervals. Leaf blade width and number of live leaves (3.86 leaves tiller-1) were not affected by cut intervals. The height of the canopy increased with the ages, with effect in the mass of forage, being the cv. Zuri the most productive with 148,75 cm e 18.297,49 kg ha-1 DM at 60 days. The highest masses of leaves and stems were obtained in the longest rest period, while the leaf/stem ratio decreased. In the cut-off interval of 45 days, the cultivars of Panicum maximum have shown satisfactory yield, and the smaller cut interval provides a reduction in canopy height and stem thickness.

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Published

2019-06-11

How to Cite

OLIVEIRA, J. dos S.., EMERENCIANO NETO, J.V., DIFANTE, G. dos S.., LISTA, F.N.., SANTOS, R. da S.., BEZERRA, J.D. do V.., BONFIM, B.R. de S.., MILHOMENS, L.B.S.. and RIBEIRO, J.S.M.., 2019. Structural and productive features of Panicum cultivars submitted to different rest periods in the irrigated semiarid region of Brazil. Bioscience Journal [online], vol. 35, no. 3, pp. 682–690. [Accessed26 November 2022]. DOI 10.14393/BJ-v35n3a2019-36402. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/36402.

Issue

Section

Agricultural Sciences