Low temperature tolerance of biomass and pollen germination in potato clones of Andean and European origin

Kristjansdottir, Ingileif S.

doi:10.1007/bf00035342

Cited by 5 publications

(1 citation statement)

References 17 publications

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“…In earlier experiments significant differences were found between parent cultivars in their ability to maintain both dry-matter and fresh-matter production when the temperature regime was lowered from 20°C/10°C to 10°C/4°C (Kristjansdottir, 1991). The Andean variety had the best dry matter maintenance ability, with about the same production per day regardless of the temperature.…”

Section: Biomass Maintenance Ability Of the Parentsmentioning

confidence: 99%

Relations between biomass maintenance of potato clones and the growth and yield of their progeny seedlings at low temperatures

Kristjansdottir

1991

Euphytica

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The main purpose of the research reported in this article was to see if the biomass maintenance of parental potato clones was correlated with the growth and yield of their progeny. Seedling populations with parents of European and of Andean origin were cultivated at a temperature of 10 ° C during the day and 4 ° C at night. The biomass maintenance of the parents was defined as the ratio between the total biomass yield at 20°C day/10 ° C night and the total biomass yield at 10 ° C day/4° C night. The Andean parents had good maintenance ability at the lower regime compared to the Eurpean parents.Biomass maintenance appears to be hereditary. Significant correlation was found between the dry matter maintenance of the parents and the growth rate of seedlings, especially during the second month after potting. In populations with only Andean or only European parents, differences in height increase and leaf formation rate between seedling populations were correlated to the dry matter maintenance of the parents cultivated at the temperature regime 10/4 ° C. In the hybrid population between an Andean and an European parent only differences in height increase during the second month after potting correlated well to the average dry matter maintenance of the parents. It appears therefore that the rate of height increase during the second month after potting can be used as a criterion for selection.

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Section: Biomass Maintenance Ability Of the Parentsmentioning

confidence: 99%

Relations between biomass maintenance of potato clones and the growth and yield of their progeny seedlings at low temperatures

Kristjansdottir

1991

Euphytica

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Selection for low temperature tolerance in potato through anther culture

Calleberg

Merker²

1997

Developments in Plant Breeding

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Correlations between low-temperature tolerance of anther donor clones of potato and the production of anther-derived embryos and calli at low temperatures

Calleberg

1996

Theoret. Appl. Genetics

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The main purpose of this study was to investigate whether the degree of tolerance to low non-freezing temperatures of immature microspores in anther culture was correlated to the degree of low-temperature tolerance, measured by chlorophyll fluorescene, in the anther donor clone. Anther cultures of six tetraploids and eight dihaploids, derived from anther cultures of clone 199.13, were incubated at 10, 15, 20, 25 or 30 °C respectively. The embryo and callus production were determined and subsequently two quotients/clone, designated "temperature-related embryo and callus production," were established. The quotients were defined as embryo and callus production at 10 or 15 °C divided by the embryo and callus production, for the individuals clone, at the optimal temperature (20 or 25 °C) for the same production. These quotients were thereafter correlated to the low-temperature tolerances of the anther donors. The tetraploid and dihaploid group were treated separately and significant positive correlations were found in both cases. This indicates that tolerance to low temperatures is expressed in the anther donor plant as well as in the microspores grown in anther culture. It is suggested that in vitro selection through anther culture may be a useful tool for breeding for increased tolerance to low temperatures in potato.

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Low temperature tolerance of biomass and pollen germination in potato clones of Andean and European origin

Abstract: The temperature-related performances of six tetraploid potato clones, two Andean, three European, and one hybrid, were compared by cultivating them in growth chambers under one of two temperature regimes:

Cited by 5 publications

References 17 publications

Relations between biomass maintenance of potato clones and the growth and yield of their progeny seedlings at low temperatures

Relations between biomass maintenance of potato clones and the growth and yield of their progeny seedlings at low temperatures

Selection for low temperature tolerance in potato through anther culture

Correlations between low-temperature tolerance of anther donor clones of potato and the production of anther-derived embryos and calli at low temperatures

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