Inheritance of iron deficiency chlorosis resistance in groundnut (Arachis hypogaeaL.)
| Autor: | K V Prakyath Kumar, Santosh K. Pattanashetti, Gopalakrishna K. Naidu, Omprakash Kumar Singh, Basavaraj D. Biradar |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Chlorosis Resistance (ecology) Physiology food and beverages 04 agricultural and veterinary sciences Biology 01 natural sciences Arachis hypogaea body regions Horticulture Crop production Botany 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Cultivar Iron deficiency (plant disorder) Allele skin and connective tissue diseases neoplasms Agronomy and Crop Science Plant nutrition 010606 plant biology & botany |
| Zdroj: | Journal of Plant Nutrition. 41:321-329 |
| ISSN: | 1532-4087 0190-4167 |
| Popis: | Iron-deficiency chlorosis (IDC) is an important abiotic constraint affecting the growth and yield of groundnut in calcareous and alkaline soils worldwide. The present study investigated the inheritance of IDC resistance among four straight crosses of groundnut involving four IDC susceptible cultivars as females and a common IDC resistant male parent. The F1's of all the four crosses were resistant to IDC indicating the dominant nature of IDC resistance. The F2's of all the four crosses showed a good fit to the ratio of 15 (IDC resistant): 1 (IDC susceptible) and their behavior among the F3's was as per the expected ratio of 7:4:4:1. The IDC resistance in groundnut is under the control of duplicate dominant genes wherein, the presence of a dominant allele at either of the loci results in IDC resistance, while duplicate recessive results in IDC susceptibility. This information would facilitate development of IDC resistant cultivars of groundnut. |
| Databáze: | OpenAIRE |
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