Inheritance and combining ability study on drought tolerance and grain yield among early maturing inbred lines of maize (Zea mays L.)
| Autor: | Doaa Ibrahim, A R Sangare, I I Adejumobi, Z M M Issa, A Richard, D Nyadanu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Heterosis Crop yield fungi Drought tolerance food and beverages Sowing 04 agricultural and veterinary sciences Heritability Biology 01 natural sciences Diallel cross Horticulture Inbred strain 040103 agronomy & agriculture 0401 agriculture forestry and fisheries 010606 plant biology & botany Hybrid |
| Zdroj: | Journal of Plant Breeding and Crop Science. 10:115-127 |
| ISSN: | 2006-9758 |
| DOI: | 10.5897/jpbcs2017.0703 |
| Popis: | Utilization of stress tolerant maize is key to sustainable production and food security. Limited knowledge on genetics of drought tolerance hampers development of drought tolerant varieties. The aim of this study was to study inheritance and combining ability of drought tolerance and grain yield among early inbred lines of maize. Five inbred lines were mated in full diallel in 2015 major season. The resultant 20 hybrids, 5 parents and 2 checks were evaluated under drought stress and well watered conditions in a screen house. Data was collected on days to 50% tasseling (DT 50%), days to 50% silking (DS 50%), anthesis-silking interval (ASI), leaf rolling, leaf senescence, plant aspect (PASP), plant height (PHT), ear height (EHT), ears per plant (EPP), ear weight, hundred grain weight (100 GW) and grain yield per hectare (GY). Drought condition was induced 40 days after planting (DAP) but watering was continued once per week till maturity. Results from combined ANOVA showed there was high and significant (p |
| Databáze: | OpenAIRE |
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