Developing proso millet (Panicum miliaceum L.) core collection using geographic and morpho-agronomic data uri icon

abstract

  • Proso millet (Panicum miliaceum L.) is a rich source of protein, minerals, and vitamins, and is an important cerealcrop of Asia and Africa. Due to its lowest water and nutrient requirement, it has the potential for agriculture diversification.The development of a core collection would assist in efficient management and enhanced utilisation of proso millet geneticresources. The present investigation was conducted to develop a core collection of proso millet based on geographicinformation and 20 qualitative and quantitative traits recorded on 833 accessions conserved in the International CropsResearch Institute for the Semi-Arid Tropics genebank. The entire germplasm collection was stratified into five groups basedon races and data on 20 morpho-agronomic traits were used for clustering following Ward?s method. About 10% (or at leastone accession) was randomly selected from each of 101 clusters to constitute a core collection of 106 accessions.Comparisons of means, variances, frequency distribution, diversity indices, and correlation studies indicated that thevariation in the entire collection has been preserved in the core collection. This core collection provides a gateway to identifydiverse trait-specific germplasm accessions for important agronomic traits and for abiotic and biotic stresses for use in cropimprovement research and in crop diversification programs

publication date

  • 2011
  • 2011