Data/hora: 10/06/2024 03:40:20

Provedor de dados: 	1	
País: 	Brazil	
Título: 	Stigmatic receptivity of peach flowers submitted to heat stress	
Autores: 	Carpenedo, Silvia; Raseira, Maria do Carmo Bassols; Franzon, Rodrigo Cezar; Byrne, David Hawkins; da Silva, João Baptista.	
Data: 	2019-11-20	
Ano: 	2019	
Palavras-chave: 	Prunus persica; Pollen viability; Pollen tubes; Flowering.	
Resumo: 	Because of climatic changes, the cultivation of temperate climate plants such as peach in subtropical climates has become a challenge. In these areas, temperatures exceeding 25°C often occur during the pre-flowering and flowering phases. The high temperature causes damages by acting during the early stages of pollen-pistil interaction processes. The objective of this work was to evaluate the stigmatic receptivity of peach flowers at 18°C and 30°C. The pollen adherence was evaluated as well as the germination and presence of pollen tubes in the transmitting tissue of the style. The genotypes responded differently to temperature. ‘Granada,’ ‘Diamante’, and ‘Sensação’ had a stigmatic receptivity that was less affected when flowers were exposed to the higher temperature. Most genotypes showed a reduction in the number of pistils with pollen tubes growing in the style, particularly when pollination was delayed.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42450

10.4025/actasciagron.v42i1.42450	
Editor: 	Universidade Estadual de Maringá	
Relação: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42450/751375148980	
Formato: 	application/pdf	
Fonte: 	Acta Scientiarum. Agronomy; Vol 42 (2020): Publicação contínua; e42450

Acta Scientiarum. Agronomy; v. 42 (2020): Publicação contínua; e42450

1807-8621

1679-9275	
Fonte: 	Copyright (c) 2020 Acta Scientiarum. Agronomy

https://creativecommons.org/licenses/by/4.0