Forage yield, chemical composition and morphogenesis of Brachiariahumidicola cv. Tupi at differents plant age

Authors

  • Newton de Lucena Costa
  • Valdinei Tadeu Paulino
  • Anibal de Moraes
  • João Avelar Magalhães

DOI:

Keywords:

chemical composition, dry matter, leaves, morphogenesis, plant age

Abstract

The effects of plant age (14, 21, 28, 35 and 42 days) on dry matter (DM) yield, chemical composition and morphogenetic and structural characteristics of Brachiaria humidicola cv. Tupi, was evaluated under greenhouse with natural conditions of light and temperature. DM yields and regrowth, leaf blade lenght, and lifespan rate increased consistently with growth stage, however the nitrogen, phosphorus, magnesium, and potassium contents decreased as plant age, while calcium contents were not affected by plant age. For all plant ages, nitrogen contents were lower than its critic level. Maximum leaf appearance and elongation rates, and blade lenght were obtained with cutting at 41.1; 31.3 and 38.9 days, respectively. These data suggest that cutting at 28 to 42 days were optimal for obtain maximum yields and regrowth of rich forage and pasture persistence.

Published

2015-09-11

Issue

Section

Pastagem e forragicultura

How to Cite

Forage yield, chemical composition and morphogenesis of Brachiariahumidicola cv. Tupi at differents plant age. (2015). Pubvet, 5(08). https://ojs.pubvet.com.br/index.php/revista/article/view/2364

Most read articles by the same author(s)

<< < 2 3 4 5 6 7 8 9 10 > >>