Effects of Physical, Mechanical and Hormonal Treatments of Seed-Tubers on Bud Dormancy and Plant Productivity
The aim of this study was to develop a technique easy to apply in order to induce seed-tuber dormancy breakage. Over a two-year study, more than seven dormancy-breaking treatments were tested through evaluating different temperature effects alone or combined with gibberellins application, cutting in...
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doaj-a3c04ab17b5246c091b0b88af67ed7952021-04-02T06:26:28ZengMDPI AGAgronomy2073-43952019-12-011013310.3390/agronomy10010033agronomy10010033Effects of Physical, Mechanical and Hormonal Treatments of Seed-Tubers on Bud Dormancy and Plant ProductivityPaola A. Deligios0Emma Rapposelli1Massimiliano G. Mameli2Limbo Baghino3Gian Mario Mallica4Luigi Ledda5Department of Agriculture, Division of Agronomy and Plant Genetics, University of Sassari, Viale Italia 39, 07100 Sassari, ItalyDepartment of Agriculture, Division of Agronomy and Plant Genetics, University of Sassari, Viale Italia 39, 07100 Sassari, ItalyAgris Sardegna—Agricultural Research Agency of Sardinia, Loc. Bonassai S.S. 291 Sassari-Fertilia—km 18,600, 07100 Sassari, ItalyAgris Sardegna—Agricultural Research Agency of Sardinia, Loc. Bonassai S.S. 291 Sassari-Fertilia—km 18,600, 07100 Sassari, ItalyAgris Sardegna—Agricultural Research Agency of Sardinia, Loc. Bonassai S.S. 291 Sassari-Fertilia—km 18,600, 07100 Sassari, ItalyDepartment of Agriculture, Division of Agronomy and Plant Genetics, University of Sassari, Viale Italia 39, 07100 Sassari, ItalyThe aim of this study was to develop a technique easy to apply in order to induce seed-tuber dormancy breakage. Over a two-year study, more than seven dormancy-breaking treatments were tested through evaluating different temperature effects alone or combined with gibberellins application, cutting in half of seed-tubers, and early haulm killing. Three varieties per year were considered: Spunta and Monalisa (medium and long dormancy) in both years, Europa during the first year and Arinda during the second year (both characterized by a short dormancy period). We found firstly that Europa and Arinda promptly responded to thermal treatments, and secondly to the same thermal treatments in combination with the application of gibberellins. Although not easily applicable, especially when a large volume of seed-tubers has to be handled (seed-tuber producers), the cutting in half of the seed-tubers also had a satisfactory result. Notwithstanding that treatments did not perfectly overlap between the two experiments, results were qualitatively similar. Therefore, these findings allow us to conclude that treatment with post-harvest storage at 20 °C, followed by a treatment with gibberellic acid at 38 days from harvesting, is the most efficient in releasing dormancy, in ensuring a good vegetative growth and productive performance at field-level irrespective of the variety.https://www.mdpi.com/2073-4395/10/1/33<i>solanum tuberosum</i> l.gibberellinsabscisic acidsprouting inductionoffseason productiondouble cropping |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Paola A. Deligios Emma Rapposelli Massimiliano G. Mameli Limbo Baghino Gian Mario Mallica Luigi Ledda |
spellingShingle |
Paola A. Deligios Emma Rapposelli Massimiliano G. Mameli Limbo Baghino Gian Mario Mallica Luigi Ledda Effects of Physical, Mechanical and Hormonal Treatments of Seed-Tubers on Bud Dormancy and Plant Productivity Agronomy <i>solanum tuberosum</i> l. gibberellins abscisic acid sprouting induction offseason production double cropping |
author_facet |
Paola A. Deligios Emma Rapposelli Massimiliano G. Mameli Limbo Baghino Gian Mario Mallica Luigi Ledda |
author_sort |
Paola A. Deligios |
title |
Effects of Physical, Mechanical and Hormonal Treatments of Seed-Tubers on Bud Dormancy and Plant Productivity |
title_short |
Effects of Physical, Mechanical and Hormonal Treatments of Seed-Tubers on Bud Dormancy and Plant Productivity |
title_full |
Effects of Physical, Mechanical and Hormonal Treatments of Seed-Tubers on Bud Dormancy and Plant Productivity |
title_fullStr |
Effects of Physical, Mechanical and Hormonal Treatments of Seed-Tubers on Bud Dormancy and Plant Productivity |
title_full_unstemmed |
Effects of Physical, Mechanical and Hormonal Treatments of Seed-Tubers on Bud Dormancy and Plant Productivity |
title_sort |
effects of physical, mechanical and hormonal treatments of seed-tubers on bud dormancy and plant productivity |
publisher |
MDPI AG |
series |
Agronomy |
issn |
2073-4395 |
publishDate |
2019-12-01 |
description |
The aim of this study was to develop a technique easy to apply in order to induce seed-tuber dormancy breakage. Over a two-year study, more than seven dormancy-breaking treatments were tested through evaluating different temperature effects alone or combined with gibberellins application, cutting in half of seed-tubers, and early haulm killing. Three varieties per year were considered: Spunta and Monalisa (medium and long dormancy) in both years, Europa during the first year and Arinda during the second year (both characterized by a short dormancy period). We found firstly that Europa and Arinda promptly responded to thermal treatments, and secondly to the same thermal treatments in combination with the application of gibberellins. Although not easily applicable, especially when a large volume of seed-tubers has to be handled (seed-tuber producers), the cutting in half of the seed-tubers also had a satisfactory result. Notwithstanding that treatments did not perfectly overlap between the two experiments, results were qualitatively similar. Therefore, these findings allow us to conclude that treatment with post-harvest storage at 20 °C, followed by a treatment with gibberellic acid at 38 days from harvesting, is the most efficient in releasing dormancy, in ensuring a good vegetative growth and productive performance at field-level irrespective of the variety. |
topic |
<i>solanum tuberosum</i> l. gibberellins abscisic acid sprouting induction offseason production double cropping |
url |
https://www.mdpi.com/2073-4395/10/1/33 |
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