Effect of fruit load of the first coffee harvests on leaf gas exchange

Coffee production between the first and second harvest presents a difference in the fruit load with the plant age that could affect the leaf gas exchange. This research aimed to evaluate the effect of the increase in fruit load that occurs between the first and second harvest of the Coffea arabica L...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Carlos Andres Unigarro Muñoz, Lina Mercela Díaz Bejarano, José Ricardo Acuña
Formato:	article
Lenguaje:	EN PT
Publicado:	Universidade Federal de Goiás 2021
Materias:	coffea arabica l. leaf-to-fruit ratio fruit phenological stage net assimilation rate Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/4769dd04e031490cae58ced00e337c20
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:4769dd04e031490cae58ced00e337c20
record_format	dspace
spelling	oai:doaj.org-article:4769dd04e031490cae58ced00e337c202021-11-16T15:58:19ZEffect of fruit load of the first coffee harvests on leaf gas exchange10.1590/1983-40632021v51698651983-4063https://doaj.org/article/4769dd04e031490cae58ced00e337c202021-11-01T00:00:00Zhttps://www.revistas.ufg.br/pat/article/view/69865/37569https://doaj.org/toc/1983-4063Coffee production between the first and second harvest presents a difference in the fruit load with the plant age that could affect the leaf gas exchange. This research aimed to evaluate the effect of the increase in fruit load that occurs between the first and second harvest of the Coffea arabica L. production cycle on the measured gas exchange, at the two phenological stages of the fruit. The accessions E057, E318, E338 and E554 were used, as well as a completely randomized design, with three replications, using the accessions as treatments and the harvest measurements during the production cycle as the repeated measures. The variables yield per tree, number of fruits, absolute growth rates for height and stem, leaf area, leaf-to-fruit ratio and leaf gas exchange were measured across the phenological stages of fruit filling and ripening. The increase in the fruit load that occurs with age in the second harvest, if compared to the first harvest, showed a positive and significant effect on the net assimilation rate that was not expected for the obtained leaf-to-fruit ratios. Likewise, the differences in the assimilation rates were higher during the fruit-filling stage. This result suggests that the source-sink relationship may vary with the crop age and fruit phenological stage, and is not entirely depend on the leaf-to-fruit ratio.Carlos Andres Unigarro MuñozLina Mercela Díaz BejaranoJosé Ricardo AcuñaUniversidade Federal de Goiás articlecoffea arabica l.leaf-to-fruit ratiofruit phenological stagenet assimilation rateAgriculture (General)S1-972ENPTPesquisa Agropecuária Tropical, Vol 51, p e69865 (2021)
institution	DOAJ
collection	DOAJ
language	EN PT
topic	coffea arabica l. leaf-to-fruit ratio fruit phenological stage net assimilation rate Agriculture (General) S1-972
spellingShingle	coffea arabica l. leaf-to-fruit ratio fruit phenological stage net assimilation rate Agriculture (General) S1-972 Carlos Andres Unigarro Muñoz Lina Mercela Díaz Bejarano José Ricardo Acuña Effect of fruit load of the first coffee harvests on leaf gas exchange
description	Coffee production between the first and second harvest presents a difference in the fruit load with the plant age that could affect the leaf gas exchange. This research aimed to evaluate the effect of the increase in fruit load that occurs between the first and second harvest of the Coffea arabica L. production cycle on the measured gas exchange, at the two phenological stages of the fruit. The accessions E057, E318, E338 and E554 were used, as well as a completely randomized design, with three replications, using the accessions as treatments and the harvest measurements during the production cycle as the repeated measures. The variables yield per tree, number of fruits, absolute growth rates for height and stem, leaf area, leaf-to-fruit ratio and leaf gas exchange were measured across the phenological stages of fruit filling and ripening. The increase in the fruit load that occurs with age in the second harvest, if compared to the first harvest, showed a positive and significant effect on the net assimilation rate that was not expected for the obtained leaf-to-fruit ratios. Likewise, the differences in the assimilation rates were higher during the fruit-filling stage. This result suggests that the source-sink relationship may vary with the crop age and fruit phenological stage, and is not entirely depend on the leaf-to-fruit ratio.
format	article
author	Carlos Andres Unigarro Muñoz Lina Mercela Díaz Bejarano José Ricardo Acuña
author_facet	Carlos Andres Unigarro Muñoz Lina Mercela Díaz Bejarano José Ricardo Acuña
author_sort	Carlos Andres Unigarro Muñoz
title	Effect of fruit load of the first coffee harvests on leaf gas exchange
title_short	Effect of fruit load of the first coffee harvests on leaf gas exchange
title_full	Effect of fruit load of the first coffee harvests on leaf gas exchange
title_fullStr	Effect of fruit load of the first coffee harvests on leaf gas exchange
title_full_unstemmed	Effect of fruit load of the first coffee harvests on leaf gas exchange
title_sort	effect of fruit load of the first coffee harvests on leaf gas exchange
publisher	Universidade Federal de Goiás
publishDate	2021
url	https://doaj.org/article/4769dd04e031490cae58ced00e337c20
work_keys_str_mv	AT carlosandresunigarromunoz effectoffruitloadofthefirstcoffeeharvestsonleafgasexchange AT linamerceladiazbejarano effectoffruitloadofthefirstcoffeeharvestsonleafgasexchange AT josericardoacuna effectoffruitloadofthefirstcoffeeharvestsonleafgasexchange
_version_	1718426298120929280

Effect of fruit load of the first coffee harvests on leaf gas exchange

Ejemplares similares