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Histological arrangements of plant tissue of different elephant grasses as influenced by their genotypes

Histological arrangements of plant tissue of different elephant grasses as influenced by their... Elephant grass genotypes display a variety of morphological differences, influencing the nutritive value of the forage. This study evaluated the histological arrangements of the leaves and stems of different elephant-grass genotypes, two tall-sized (Elephant B and IRI-381) and two dwarfs (Mott and Taiwan A-146 2.37), during a two-year trial. The grasses were harvested at 60-day intervals for two years. Biometric analyses of the stems and leaves were performed based on histological measurements. An in vitro dry matter digestibility (IVDMD) assay of the forage was performed. Among the elephant grass genotypes, the lignified cells and vascular bundles of the stems had higher variation than the leaves. Tall-sized genotypes displayed more lignified tissues in stems than the dwarfs. The transversal area occupied by vascular bundles and lignified cells were higher in Elephant B (44 911 μm2 and 35 895 μm2) (p < 0.05), compared to the dwarfs. Forage IVDMD was higher in leaves (699 g kg−1 of dry matter [DM]) than in the stems (678 g kg−1 of DM), considering all genotypes (p < 0.05). We did not observe any direct influence of genotype on forage digestibility, despite some differences in the histological arrangements. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png African Journal of Range & Forage Science Taylor & Francis

Histological arrangements of plant tissue of different elephant grasses as influenced by their genotypes

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Histological arrangements of plant tissue of different elephant grasses as influenced by their genotypes

Abstract

Elephant grass genotypes display a variety of morphological differences, influencing the nutritive value of the forage. This study evaluated the histological arrangements of the leaves and stems of different elephant-grass genotypes, two tall-sized (Elephant B and IRI-381) and two dwarfs (Mott and Taiwan A-146 2.37), during a two-year trial. The grasses were harvested at 60-day intervals for two years. Biometric analyses of the stems and leaves were performed based on histological...
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Publisher
Taylor & Francis
Copyright
© 2022 NISC (Pty) Ltd
ISSN
1727-9380
eISSN
1022-0119
DOI
10.2989/10220119.2022.2135592
Publisher site
See Article on Publisher Site

Abstract

Elephant grass genotypes display a variety of morphological differences, influencing the nutritive value of the forage. This study evaluated the histological arrangements of the leaves and stems of different elephant-grass genotypes, two tall-sized (Elephant B and IRI-381) and two dwarfs (Mott and Taiwan A-146 2.37), during a two-year trial. The grasses were harvested at 60-day intervals for two years. Biometric analyses of the stems and leaves were performed based on histological measurements. An in vitro dry matter digestibility (IVDMD) assay of the forage was performed. Among the elephant grass genotypes, the lignified cells and vascular bundles of the stems had higher variation than the leaves. Tall-sized genotypes displayed more lignified tissues in stems than the dwarfs. The transversal area occupied by vascular bundles and lignified cells were higher in Elephant B (44 911 μm2 and 35 895 μm2) (p < 0.05), compared to the dwarfs. Forage IVDMD was higher in leaves (699 g kg−1 of dry matter [DM]) than in the stems (678 g kg−1 of DM), considering all genotypes (p < 0.05). We did not observe any direct influence of genotype on forage digestibility, despite some differences in the histological arrangements.

Journal

African Journal of Range & Forage Science – Taylor & Francis

Published: Nov 11, 2022

Keywords: Cenchrus purpureus; forage digestibility; grass histology

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