A kukorica (Zea mays L.) fiatalkori hidegturése örö klodésének értékelése módosí tott "joint scaling test"-tel

Translated title of the contribution: Evaluation of the cold tolerance of maize seedlings (Zea mays L.) with a modified joint scaling test

L. Márton, Csaba Kuti

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The inheritance of chilling tolerance in maize seedlings was studied in a temperature gradient chamber on a systematic genetic series developed using the inbred lines CM 174 and Mo 17 as the parents. The leaf areas of the six genotypes were evaluated after 26 days of chilling treatment. This treatment was begun when the plants were in the 2-leaf stage and was carried out simultaneously at 10 different temperatures from 7.0 to 14.2°C at intervals of 0.8°C. The additive dominance model (original joint scaling test) could be applied to the inheritance of the leaf area at all the temperatures. The model overestimated the values of certain genotypes (P1, P 2, F1), while under-estimating the remaining genotypes (BC1, BC1-R, F2). The correlation between the values estimated using the modified joint scaling test and the measured data was closer than that obtained with the original model. The level of heterozygosity of the female parent was found to influence initial development. As the temperature rose the effect of the level of heterozygosity of the female parent (fh) declined compared with the mean (m). The (h)/(d) ratio was considerably greater than unity for both models, indicating overdominance. The value of (d) gradually decreased with a rise in temperature; at temperatures above 10°C it had a negative sign in both models.

Original languageHungarian
Pages (from-to)367-373
Number of pages7
JournalNovenytermeles
Volume51
Issue number4
Publication statusPublished - Aug 2002

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cold tolerance
Zea mays
corn
seedlings
temperature
testing
genotype
inheritance (genetics)
heterozygosity
leaf area
overdominance
temperature profiles
inbred lines
dominance (genetics)
Rosa
leaves

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

A kukorica (Zea mays L.) fiatalkori hidegturése örö klodésének értékelése módosí tott "joint scaling test"-tel. / Márton, L.; Kuti, Csaba.

In: Novenytermeles, Vol. 51, No. 4, 08.2002, p. 367-373.

Research output: Contribution to journalArticle

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