Genetic Diversity for Dual Use Maize: Grain and Second-Generation Biofuel
نویسندگان
چکیده
Maize biomass from agricultural residues can be a substrate for biofuel production. However, commercial breeding programs have focused on grain yield food and feed, whole plant nutritive value silage, with little attention paid directly to stover or composition. Enhancing the energy content of crop higher quality cellulosic ethanol conversion should provide complementary use use. We also question whether there is maize germplasm predisposed dual as second-generation biofuel. Twenty genotypes, including landraces Spain, Atlantic, Mediterranean Europe genotypes derived Iowa stiff stalk synthetic, Lancaster, hybrids were studied in randomized complete block design across environments Galicia (Spain) 2010 2011. Germplasm was evaluated agronomic characteristics fiber parameters. Results show high heritability all parameters, ranging 0.81 0.98. Principal components analysis revealed clear differences among origin varieties studied. Hybrids had highest values B73xMo17 PR34G13 overall, at 10133 9349 kg/ha, respectively. European landrace lower harvest indexes (HI) than hybrid origin, Faro BSL having HI 0.43–0.47, compared PR34613 0.56. Fiber concentrations significantly correlated performance, 0.38 0.61 cob fibers between ?0.14 ?0.57 fibers. different, based origins, cobs but not stover, Atlantic group showing favorable trend exploitation low acid detergent lignin neutral values. In summary, population showed reservoir genetic diversity improve residue quality, suggesting that adaptation played role quality. could used prebreeding target traits dual-purpose maize.
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ژورنال
عنوان ژورنال: Agronomy
سال: 2021
ISSN: ['2156-3276', '0065-4663']
DOI: https://doi.org/10.3390/agronomy11020230