2000
DOI: 10.1590/s0103-31312000000200006
|View full text |Cite
|
Sign up to set email alerts
|

Avaliação da viabilidade do pólen como possível indicativo de tolerância a altas temperaturas em genótipos de tomateiro

Abstract: RESUMO -O objetivo foi avaliar o comportamento de cinco cultivares (Carmen, IPA-5, Príncipe gigante, Santa Clara e TSW-10) e uma linhagem de tomateiro (CL5915), quanto à tolerância a altas temperaturas, por meio da viabilidade do pólen. O Experimento I constou na coleta do pólen dos diferentes genótipos e germinação em lâminas contendo um meio com 10% de sacarose e 100 mg.L -1 de ácido bórico. As flores foram levadas à câmara de germinação regulada nas temperaturas 30ºC, 35ºC, 40ºC e 45°C por 1, 2, 3 e 4 horas… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1

Citation Types

0
1
0
2

Year Published

2008
2008
2021
2021

Publication Types

Select...
6

Relationship

0
6

Authors

Journals

citations
Cited by 6 publications
(3 citation statements)
references
References 6 publications
(2 reference statements)
0
1
0
2
Order By: Relevance
“…Comparing the mean values of shoot and root length, it was verified that the highest values were also obtained in seedlings submitted to treatments of 25 and 30 o C (Figure 1C, D). Thermal stress is one of the primordial factors that restrict the development and adaptation of some species (Silva et al, 2000), and it may limit them to certain regions according to the temperature. An increase in air temperature promotes the reduction of the metabolic activity and the increased respiration of many species, directly affecting their growth and development (Costa et al, 2015).…”
Section: Resultsmentioning
confidence: 99%
“…Comparing the mean values of shoot and root length, it was verified that the highest values were also obtained in seedlings submitted to treatments of 25 and 30 o C (Figure 1C, D). Thermal stress is one of the primordial factors that restrict the development and adaptation of some species (Silva et al, 2000), and it may limit them to certain regions according to the temperature. An increase in air temperature promotes the reduction of the metabolic activity and the increased respiration of many species, directly affecting their growth and development (Costa et al, 2015).…”
Section: Resultsmentioning
confidence: 99%
“…O desenvolvimento de métodos para determinar a viabilidade do pólen é útil em programas de melhoramento, permitindo realizar a avaliação prévia de genótipos quanto à sua capacidade de produzir frutos e sementes (SILVA et al, 2000).…”
Section: Introductionunclassified
“…Neste âmbito, o grão de pólen na antese da flor necessita estar plenamente viável, (SOUZA; PEREIRA; MARTINS, 2002). Visto que, um dos fatores responsáveis pela não-fixação dos frutos é a ausência desses gametas viáveis (SILVA; LEITE; BRAZ, 2000).…”
unclassified