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- Title
Tropical forages: morphoanatomy of plants grown in areas with the death of pasture syndrome.
- Authors
Ribeiro-Júnior, N. G.; Fagundes, O. S.; Benevenuti, A. S.; Yamashita, O. M.; Rossi, A. A. B.; Carvalho, M. A. C.; Silva, I. V.
- Abstract
Roots and leaves of Panicum maximum Tanzânia, Mombaça and Massai; Urochloa brizantha Piatã, Marandu and Xaraés; Urochloa humidicola Llanero; Urochloa ruziziensis Ruzizienses; Urochloa hybrida Mulato II and Cynodon nlemfuensis Estrela-roxa were analyzed, seeking to identify characters for better adaptation to the environment that may interfere with digestibility of tissue from the point of view of the rumen in cattle. Were planted ten cultivars in a completely randomized blocks with three repetitions. Was collected vegetative material, which histological slides were prepared from middle third of the sections of roots and leaves. Were observed differences (p>0.05) in the roots: higher volume of epidermal cells (28.62 µm) and overall diameter (1926.41 µm) of Llanero; thicker vascular cylinder (975.09 µm) and more protoxylem (42.25) in Estrela-roxa and occurrence of aerenchyma in cultivars Piatã, Mulato II, Xaraés, Massai, Llanero and Estrela-roxa; Were found higher proportions of bulliform cells in the leaves (121.07 µm) and thicker leaf mesophyll in U. humidicola Llanero (263.63 µm); higher proportion of sclerenchyma fibers in Xaraés and Marandu; lower results for amount of fibers in P. maximum Massai. We conclude that the cultivars Estrela-roxa, Llanero and Massai have greater adaptability to the environment and better nutritional quality.
- Subjects
PANICUM; PASTURE ecology; SIGNALGRASS; CYNODON; AERENCHYMA; PLANT anatomy
- Publication
Brazilian Journal of Biology, 2017, Vol 77, Issue 4, p868
- ISSN
1519-6984
- Publication type
Article
- DOI
10.1590/1519-6984.05116