Central rib and the nutritive value of leaves in forage grasses

Abstract In grasses, leaf expansion and central rib growth occur in a non-proportional manner, with potential implications to the nutritive value of leaves. The objective of this study was to evaluate the relationship among blade length, percentage of central rib, anatomical characteristics and the...

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Autores principales:	Larissa Fernanda Garcia, Guilherme Portes Silva, Eliana Vera Geremia, Laura Beatriz Lima Goulart, Carlos Tadeu dos Santos Dias, Sila Carneiro da Silva
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a3cd2273911f4b389a2e7550514b94fb
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spelling	oai:doaj.org-article:a3cd2273911f4b389a2e7550514b94fb2021-12-02T11:37:21ZCentral rib and the nutritive value of leaves in forage grasses10.1038/s41598-021-84844-z2045-2322https://doaj.org/article/a3cd2273911f4b389a2e7550514b94fb2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84844-zhttps://doaj.org/toc/2045-2322Abstract In grasses, leaf expansion and central rib growth occur in a non-proportional manner, with potential implications to the nutritive value of leaves. The objective of this study was to evaluate the relationship among blade length, percentage of central rib, anatomical characteristics and the nutritive value along the length of leaf blades of different sizes and hierarchical order of insertion on the tiller axis of Napier elephant grass (Pennisetum purpureum Schum. cv. Napier). Two experiments were carried out with isolated growing plants during the summer of 2017 (January to March). Central rib mass increased linearly with the increase in leaf blade mass and its percentage relative to blade mass decreased from the base to the tip of the leaf. There were no significant variations in anatomical characteristics along the length of leaf blades when central rib was not taken into account. The central rib showed negative relationship with nutritive value. The apical portions of long leaves showed similar digestibility to short leaves. The multivariate analysis of Cluster and Principal Components grouped the response variables according to leaf hierarchical order, final blade length and percentage of structural tissues, highlighting the relationship between leaf size, structural tissues and nutritive value.Larissa Fernanda GarciaGuilherme Portes SilvaEliana Vera GeremiaLaura Beatriz Lima GoulartCarlos Tadeu dos Santos DiasSila Carneiro da SilvaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Larissa Fernanda Garcia Guilherme Portes Silva Eliana Vera Geremia Laura Beatriz Lima Goulart Carlos Tadeu dos Santos Dias Sila Carneiro da Silva Central rib and the nutritive value of leaves in forage grasses
description	Abstract In grasses, leaf expansion and central rib growth occur in a non-proportional manner, with potential implications to the nutritive value of leaves. The objective of this study was to evaluate the relationship among blade length, percentage of central rib, anatomical characteristics and the nutritive value along the length of leaf blades of different sizes and hierarchical order of insertion on the tiller axis of Napier elephant grass (Pennisetum purpureum Schum. cv. Napier). Two experiments were carried out with isolated growing plants during the summer of 2017 (January to March). Central rib mass increased linearly with the increase in leaf blade mass and its percentage relative to blade mass decreased from the base to the tip of the leaf. There were no significant variations in anatomical characteristics along the length of leaf blades when central rib was not taken into account. The central rib showed negative relationship with nutritive value. The apical portions of long leaves showed similar digestibility to short leaves. The multivariate analysis of Cluster and Principal Components grouped the response variables according to leaf hierarchical order, final blade length and percentage of structural tissues, highlighting the relationship between leaf size, structural tissues and nutritive value.
format	article
author	Larissa Fernanda Garcia Guilherme Portes Silva Eliana Vera Geremia Laura Beatriz Lima Goulart Carlos Tadeu dos Santos Dias Sila Carneiro da Silva
author_facet	Larissa Fernanda Garcia Guilherme Portes Silva Eliana Vera Geremia Laura Beatriz Lima Goulart Carlos Tadeu dos Santos Dias Sila Carneiro da Silva
author_sort	Larissa Fernanda Garcia
title	Central rib and the nutritive value of leaves in forage grasses
title_short	Central rib and the nutritive value of leaves in forage grasses
title_full	Central rib and the nutritive value of leaves in forage grasses
title_fullStr	Central rib and the nutritive value of leaves in forage grasses
title_full_unstemmed	Central rib and the nutritive value of leaves in forage grasses
title_sort	central rib and the nutritive value of leaves in forage grasses
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a3cd2273911f4b389a2e7550514b94fb
work_keys_str_mv	AT larissafernandagarcia centralribandthenutritivevalueofleavesinforagegrasses AT guilhermeportessilva centralribandthenutritivevalueofleavesinforagegrasses AT elianaverageremia centralribandthenutritivevalueofleavesinforagegrasses AT laurabeatrizlimagoulart centralribandthenutritivevalueofleavesinforagegrasses AT carlostadeudossantosdias centralribandthenutritivevalueofleavesinforagegrasses AT silacarneirodasilva centralribandthenutritivevalueofleavesinforagegrasses
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Central rib and the nutritive value of leaves in forage grasses

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