Tolerance to bolting in lettuce: cultivars and growing seasons

ABSTRACT Lettuce is the most consumed hardwood crop in the world. Originating in temperate climates, early flowering of lettuce is induced in regions and/or periods of high temperatures. The objective of this work was to evaluate the tolerance to bolting of cultivars of crisp lettuce, during differe...

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Autores principales:	do Amaral,Jaqueline Cristina, Neumann Silva,Vanessa
Lenguaje:	English
Publicado:	Universidad de Tarapacá. Facultad de Ciencias Agronómicas 2018
Materias:	Lactuca sativa early flowering growing environments
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292018000400025
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spelling	oai:scielo:S0718-342920180004000252019-04-22Tolerance to bolting in lettuce: cultivars and growing seasonsdo Amaral,Jaqueline CristinaNeumann Silva,Vanessa Lactuca sativa early flowering growing environments ABSTRACT Lettuce is the most consumed hardwood crop in the world. Originating in temperate climates, early flowering of lettuce is induced in regions and/or periods of high temperatures. The objective of this work was to evaluate the tolerance to bolting of cultivars of crisp lettuce, during different growing seasons, in the western region of the state of Santa Catarina, Brazil. The experiment was conducted using a randomized complete block design, in a 6 x 2 factorial scheme comprising six cultivars (Milena, Vanda, Vera, Valentina, Pira Verde, and Grand Rapids) and two distinct growing environments (protected and field), during two growing seasons in the summer period. The following were evaluated: days from transplant to flowering, stem length, diameter, total fresh and commercial mass, number of leaves, and commercial and total productivity. Data were submitted to analysis of variance and comparison of means by the Tukey test (p <0.05). The Pira Verde, Milena, Valentina and Vanda cultivars were found to be tolerant to early tillage under the tested conditions. In the protected environment, the best growing season for crisp lettuce was the first summer period evaluated, involving seedling transplant in February and harvest in April. In contrast, the best growing season in the field environment was the second summer period, with seedling transplant in March and harvest in May.info:eu-repo/semantics/openAccessUniversidad de Tarapacá. Facultad de Ciencias AgronómicasIdesia (Arica) v.36 n.4 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292018000400025en10.4067/S0718-34292018005002101
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Lactuca sativa early flowering growing environments
spellingShingle	Lactuca sativa early flowering growing environments do Amaral,Jaqueline Cristina Neumann Silva,Vanessa Tolerance to bolting in lettuce: cultivars and growing seasons
description	ABSTRACT Lettuce is the most consumed hardwood crop in the world. Originating in temperate climates, early flowering of lettuce is induced in regions and/or periods of high temperatures. The objective of this work was to evaluate the tolerance to bolting of cultivars of crisp lettuce, during different growing seasons, in the western region of the state of Santa Catarina, Brazil. The experiment was conducted using a randomized complete block design, in a 6 x 2 factorial scheme comprising six cultivars (Milena, Vanda, Vera, Valentina, Pira Verde, and Grand Rapids) and two distinct growing environments (protected and field), during two growing seasons in the summer period. The following were evaluated: days from transplant to flowering, stem length, diameter, total fresh and commercial mass, number of leaves, and commercial and total productivity. Data were submitted to analysis of variance and comparison of means by the Tukey test (p <0.05). The Pira Verde, Milena, Valentina and Vanda cultivars were found to be tolerant to early tillage under the tested conditions. In the protected environment, the best growing season for crisp lettuce was the first summer period evaluated, involving seedling transplant in February and harvest in April. In contrast, the best growing season in the field environment was the second summer period, with seedling transplant in March and harvest in May.
author	do Amaral,Jaqueline Cristina Neumann Silva,Vanessa
author_facet	do Amaral,Jaqueline Cristina Neumann Silva,Vanessa
author_sort	do Amaral,Jaqueline Cristina
title	Tolerance to bolting in lettuce: cultivars and growing seasons
title_short	Tolerance to bolting in lettuce: cultivars and growing seasons
title_full	Tolerance to bolting in lettuce: cultivars and growing seasons
title_fullStr	Tolerance to bolting in lettuce: cultivars and growing seasons
title_full_unstemmed	Tolerance to bolting in lettuce: cultivars and growing seasons
title_sort	tolerance to bolting in lettuce: cultivars and growing seasons
publisher	Universidad de Tarapacá. Facultad de Ciencias Agronómicas
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292018000400025
work_keys_str_mv	AT doamaraljaquelinecristina tolerancetoboltinginlettucecultivarsandgrowingseasons AT neumannsilvavanessa tolerancetoboltinginlettucecultivarsandgrowingseasons
_version_	1714203764217348096

Tolerance to bolting in lettuce: cultivars and growing seasons

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