The evaluation of photosynthetic parameters in maize inbred lines subjected to water deficiency: Can these parameters be used for the prediction of performance of hybrid progeny?

Title:

The evaluation of photosynthetic parameters in maize inbred lines subjected to water deficiency: Can these parameters be used for the prediction of performance of hybrid progeny?

Creator:

Holá, D., Benešová, M., Honnerová, J., Hnilička, F., Rothová, O., Kočová, M., and Hniličková, H.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:65330a64-56ad-4765-8d7f-ec3f052f64d8
uuid:65330a64-56ad-4765-8d7f-ec3f052f64d8
issn:0300-3604
doi:10.1007/s11099-010-0072-x

Subject:

botanika, botany, additivity, chlorophyll fluorescence, dominance, drought, genetic analysis, maternal effects, photosynthesis, and stress tolerance

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The response of selected photosynthetic and morphological parameters of plants to drought was examined in 5 inbred lines of maize (Zea mays L.) and their 10 F1 hybrids. The aim of the study was to establish whether the photosynthetic performance of parental genotypes under drought conditions correlates with the performance of their progeny and whether the net photosynthetic rate, the chlorophyll fluorescence parameters or the content of photosynthetic pigments could be used as reliable physiological markers for early breeding generations. The relative importance of the additive and the nonadditive (dominance, maternal) genetic effects in the inheritance of these parameters was also assessed by means of the quantitative genetics analysis. The results showed that the nonadditive genetic effects associated with a particular combination of genotypes or a particular direction of crossing are at least equally and often even more important as the additivity and that these genetic effects almost totally change with the exposure of plants to drought conditions. This was reflected in the inability to predict the response of F1 hybrids to drought on the basis of the photosynthetic performance of their parents, which indicates that the practical usability of such parameters in maize breeding programs is rather limited. and D. Holá ... [et al.].

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

545-558

Source:

Photosynthetica | 2010 Volume:48 | Number:4

Harvested from:

CDK

Metadata only:

false