Participation of leaf dry mass, sheath and stem, leaf/stem ratio of the Panicum maximum Jacq.cultivar submitted the different ages of cut

Authors

  • Rosane Cláudia Rodrigues Universidade Federal do Mato Grosso, Faculdade de Agronomia e Medicina Veterinária, Departamento de Zootecnia e Extensão Rural, Cuiabá, MT
  • Daniel de O. S. Lima Universidade Federal do Mato Grosso, Faculdade de Agronomia e Medicina Veterinária, Departamento de Solos e Engenharia Rural, Cuiabá, MT
  • Valdo Rodrigues Herling Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos, Departamento de Zootecnia, Pirassununga, SP
  • Luciano da Silva Cabral Universidade Federal do Mato Grosso, Faculdade de Agronomia e Medicina Veterinária, Departamento de Zootecnia e Extensão Rural, Cuiabá, MT
  • Luis Pedro de Melo Plese Secretaria de Agropecuária, Rio Branco, AC
  • Walcylene Lacerda Matos Pereira Scaramuzza Universidade Federal do Mato Grosso, Faculdade de Agronomia e Medicina Veterinária, Departamento de Solos e Engenharia Rural, Cuiabá, MT

Keywords:

Aries, Atlas, sheath, stem, leaf blade, dry matter

Abstract

The present work was done with the objective of evaluate dry mass, the leaf blades, stem and sheath proportions and the leaf/stem ratio for the Panicum maximum Jacq. cv. Aries and Atlas submitted to different ages of cutting. The experiment was conduced in green-house at the FAMEV/UFMT, from the period of September to November of 2006, whose temperature varied from 29 to 42oC. The experiment arranje used was the complete randomized by mean of a fatorial 7 x 2 (age x grass), with three repetitions for treatment, or 42 experimental units. The ages evaluated were 21; 28; 35; 42; 49; 56 and 63 days after seed germination, which have been cultivated in vases. In the cutting, the harvested material was weighted and analyzed for dry mass, leaves, stem and sheat. The data were submitted to variance and regression analysis. The maximal dry mass production would be reached in cut age at 112 and 76 days period higher than the evaluated in present work. The leaf/stem ratio also was squarely affected by cut age. The higher value was observed for this variable in 58 an 31 cuts ages, respectively, for Aries and Atlas cultivars. The advance in cut age promoted linear reduction in leave proportion, and an increment in stems and sheath proportions.

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Published

2007-04-22

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Participation of leaf dry mass, sheath and stem, leaf/stem ratio of the Panicum maximum Jacq.cultivar submitted the different ages of cut. (2007). Bulletin of Animal Husbandry, 64(4), 295-301. http://bia.iz.sp.gov.br/index.php/bia/article/view/1221

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