Seed potato (Solanum tuberosum L.) yield and tuber number increase after foliar applications of cytokinins and gibberellic acid under field and glasshouse conditions

The purpose of these experiments is to determine the effects of foliar applications of benzylaminopurine (BAP) and gibberellic acid (GA) on tuber number production of seed potatoes. In field experiments conducted during 1989/90 cv. Mailen was used and BAP, 50 mg·l−1 was foliarly applied at (1) tuber...

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Detalles Bibliográficos
Autor principal: Caldiz, Daniel O.
Formato: Articulo
Lenguaje:Inglés
Publicado: 1996
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/138073
Aporte de:
id I19-R120-10915-138073
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
benzylaminopurine
gibberellic acid
seed potatoes
spellingShingle Ciencias Agrarias
benzylaminopurine
gibberellic acid
seed potatoes
Caldiz, Daniel O.
Seed potato (Solanum tuberosum L.) yield and tuber number increase after foliar applications of cytokinins and gibberellic acid under field and glasshouse conditions
topic_facet Ciencias Agrarias
benzylaminopurine
gibberellic acid
seed potatoes
description The purpose of these experiments is to determine the effects of foliar applications of benzylaminopurine (BAP) and gibberellic acid (GA) on tuber number production of seed potatoes. In field experiments conducted during 1989/90 cv. Mailen was used and BAP, 50 mg·l−1 was foliarly applied at (1) tuber initiation, 36 days after emergence (DAE); (2) 54 DAE; and, (3) 64 DAE. Under glasshouse conditions, in 1991/92 cv. Spunta was used and BAP 50 mg·l−1+GA 50 mg·l−1 were applied 30 and 37 days after planting/transplanting. In 1992 cv. Huinkul, Kennebec and Spunta were used and BAP 50 mg·l−1+GA 50 mg·l−1 and “Biozyme” (Techic SA), a commercial product with auxin (IAA, 32.2 mg·l−1), gibberellic acid (GA3, 32.2 mg·l−1) and cytokinins (zeatin, 83.2 mg·l−1) at 5 ml·l−1 were applied. In cv. Mailen, a higher tuber number in the seed fraction (<80 g) was found when BAP was applied at each of the three crop stages, while applications 54 and 62 DAE also increased tuber number in the 80–400 g fraction. As a result of BAP applications, tuber yield was also significantly increased. In the glasshouse experiments, cv. Spunta showed a significant increase in minituber production in 3 out of 4 cases, either if the mother plant came from in vitro generated plantlets or minitubers, or if GA + BAP or Biozyme was applied. It can be concluded that the use of these PGRs under both field and glasshouse conditions in cvs. Mailen and Spunta can result in increased tuber number in the seed fraction.
format Articulo
Articulo
author Caldiz, Daniel O.
author_facet Caldiz, Daniel O.
author_sort Caldiz, Daniel O.
title Seed potato (Solanum tuberosum L.) yield and tuber number increase after foliar applications of cytokinins and gibberellic acid under field and glasshouse conditions
title_short Seed potato (Solanum tuberosum L.) yield and tuber number increase after foliar applications of cytokinins and gibberellic acid under field and glasshouse conditions
title_full Seed potato (Solanum tuberosum L.) yield and tuber number increase after foliar applications of cytokinins and gibberellic acid under field and glasshouse conditions
title_fullStr Seed potato (Solanum tuberosum L.) yield and tuber number increase after foliar applications of cytokinins and gibberellic acid under field and glasshouse conditions
title_full_unstemmed Seed potato (Solanum tuberosum L.) yield and tuber number increase after foliar applications of cytokinins and gibberellic acid under field and glasshouse conditions
title_sort seed potato (solanum tuberosum l.) yield and tuber number increase after foliar applications of cytokinins and gibberellic acid under field and glasshouse conditions
publishDate 1996
url http://sedici.unlp.edu.ar/handle/10915/138073
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