Milling performance in desi-type chickpea (Cicer arietinum L.): effects of genotype, environment and seed size

• Autores: Jennifer A Wood, Edmund J Knights, Steven Harden
• Localización: Journal of the science of food and agriculture, ISSN 0022-5142, Vol. 88, Nº 1, 2008, págs. 108-115
• Idioma: inglés
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• Resumen

  • BACKGROUND: Commercial experience suggests that desi chickpea cultivars vary in their milling quality. However, the relative effects of cultivar, growing environment and their interaction are unknown. This study examined the Australian pulse quality method for its effectiveness in comparing the milling quality of breeding lines. The main aims were (1) to determine if there were significant genotypic differences, (2) to quantify the effects of trial, testa content and seed size and (3) to determine if any of the milling quality or seed parameters were correlated. This information would then be used to improve the reliability and efficiency of testing breeding lines. RESULTS: Large genotypic differences were observed for the milling parameters dehulling efficiency (DE) and splitting yield (SY). The range was greater for SY (16.6%) than for DE (5.8%). Genotype × Trial interactions were significant for DE and SY, while genotype rankings were generally consistent between trials. Seed size and testa content were not significantly associated with either DE or SY. Environmental stresses that affected yield did not appear to influence milling results. CONCLUSION: The methodology used in this study was able to measure genotypic differences in milling quality. The results suggest that an efficient protocol for testing milling quality of chickpea genotypes would include analysis of at least two sites early in the breeding programme to discard very-low-SY genotypes, and further testing in subsequent years including at least one other site to identify high-SY genotypes if desired. Copyright © 2007 Society of Chemical Industry