Parent-progeny regression estimates and associations of height level with aluminum toxicity and grain yield in wheat
Camargo, C.E.O.
Parent-progeny regression estimates and associations of height level with aluminum toxicity and grain yield in wheat - United States of America : John Wiley & Sons, 1980.
Peer review
Concerns regarding possible associations between plant height and A1 tolerance in wheat (Triticum aestivum L. em Thell) led to this investigation. Standard height, low grain yield potential, A1 tolerant cultivars ‘BH 1146’ and ‘Atlas 66’ and semidwarf, high grain yield potential, A1 sensitive cultivars ‘Tordo’ and ‘Siete Cerros’ were crossed in a diallel fashion. Parents, F1's, F2's and reciprocal backcrosses were tested for their seedling reaction to 6 ppm of A1. Plant height and grain yield were determined for the same populations at maturity. Parent-progeny regression estimates for A1 tolerance and plant height were high (b = 0.903) but intermediate (b = 0.507) for grain yield. Genotypic, phenotypic and environmental correlations, between A1 tolerance with plant height and grain yield, respectively, were not significant. Grain yield and plant height correlations ranged from 0.274 to 0.813 and were significant (P = 0.01). Results suggest it would be possible to select plant types which combine A1 tolerance and semidwarf height levels; however, large F2 populations will be required. Tordo appears to be the most promising dwarfing source for the development of semidwarf cultivars adapted to soils with high A1, but poor seed quality could be a limiting factor using this source of germplasm.
Text in English
0011-183X 1435-0653 (Online)
https://doi.org/10.2135/cropsci1980.0011183X002000030017x
Progeny
Regression analysis
Associations
Aluminium
Tolerance
Correlation
Yields
Triticum aestivum
Dwarf varieties
Coefficient of parentage
Acid soils
Germplasm
Parent-progeny regression estimates and associations of height level with aluminum toxicity and grain yield in wheat - United States of America : John Wiley & Sons, 1980.
Peer review
Concerns regarding possible associations between plant height and A1 tolerance in wheat (Triticum aestivum L. em Thell) led to this investigation. Standard height, low grain yield potential, A1 tolerant cultivars ‘BH 1146’ and ‘Atlas 66’ and semidwarf, high grain yield potential, A1 sensitive cultivars ‘Tordo’ and ‘Siete Cerros’ were crossed in a diallel fashion. Parents, F1's, F2's and reciprocal backcrosses were tested for their seedling reaction to 6 ppm of A1. Plant height and grain yield were determined for the same populations at maturity. Parent-progeny regression estimates for A1 tolerance and plant height were high (b = 0.903) but intermediate (b = 0.507) for grain yield. Genotypic, phenotypic and environmental correlations, between A1 tolerance with plant height and grain yield, respectively, were not significant. Grain yield and plant height correlations ranged from 0.274 to 0.813 and were significant (P = 0.01). Results suggest it would be possible to select plant types which combine A1 tolerance and semidwarf height levels; however, large F2 populations will be required. Tordo appears to be the most promising dwarfing source for the development of semidwarf cultivars adapted to soils with high A1, but poor seed quality could be a limiting factor using this source of germplasm.
Text in English
0011-183X 1435-0653 (Online)
https://doi.org/10.2135/cropsci1980.0011183X002000030017x
Progeny
Regression analysis
Associations
Aluminium
Tolerance
Correlation
Yields
Triticum aestivum
Dwarf varieties
Coefficient of parentage
Acid soils
Germplasm