Tropical Maize: Exploiting Maize Genetic Diversity to Develop a Novel Annual Crop for Lignocellulosic Biomass and Sugar Production

White, Wendy G.; Moose, Stephen P.; Weil, Clifford F.; McCann, Maureen C.; Carpita, Nicholas C.; Below, Frederick E.

doi:10.1007/978-0-387-92740-4_11

Cited by 18 publications

(22 citation statements)

References 28 publications

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“…According to White et al (2011), tropical corn has reduced grain formation because it accumulates a large amount of extractable sugar, primarily sucrose, glucose, and fructose, in the stalk. Therefore, tropical corn accumulates more sugar during grain filling because kernel set is poor and barrenness often occurs.…”

Section: Phenology and Biomass Production Of Adapted And Non-adapted mentioning

confidence: 99%

“…Reported results show that delayed flowering, such as found in non-adapted tropical corn, was antagonistic to grain production (King et al, 1972;Pulam, 2011;White et al, 2011;Chen et al, 2013). However, even if corn has been historically cultivated mainly for grain, and all fertilization and water recommendations have been calculated for this purpose, biomass accumulation in tropical corn may be useful for bioenergy, meaning studying corn's overall potential beyond grain, remains relevant (White et al, 2011;Chen et al, 2013;).…”

Section: Phenology and Biomass Production Of Adapted And Non-adapted mentioning

confidence: 99%

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Phenology and Biomass Production of Adapted and Non‐Adapted Tropical Corn Populations in Central Iowa

et al. 2018

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Biofuel production in the midwestern United States has largely focused on corn (Zea mays L.) grain for ethanol production and more recently, corn stover for lignocellulosic ethanol. Tropical corn refers to corn adapted from tropical regions. Growing tropical germplasm in temperate environments is not attractive for grain yield, but shows promise for biomass production through taller and more vigorous plants with thick stems and long leaves. The comparison between tropical corn populations and their temperate adapted counterparts with a focus on biomass production has not yet been explored under Iowa growing conditions. This study refines the accuracy of the leaf collar method, and characterizes the adaptation of the populations by evaluating crop development and biomass production. Therefore, field trials were established in central Iowa during the 2014 and 2015 growing seasons. Adapted and non-adapted versions of three populations, Tuxpeño, Suwan, and Tuson, were planted at three dates to evaluate their phenology and potential for biomass production under midwestern U.S. conditions. Plant height correlated well with vegetative development and total biomass. Adapted tropical corn had advanced grain development, while non-adapted tropical corn had advanced vegetative development and greater biomass yield. Non-adapted tropical corn flowered later, had 22% greater total biomass on average (4.6 Mg ha -1 greater than adapted), and had 43% greater non-grain biomass on average, up to 20 Mg ha -1 (6 Mg ha -1 greater than adapted), while adapted populations yielded more grain. Non-adapted tropical corn has a high potential as feedstock for Gen2 biofuels in central Iowa. A gronomy J our n al • Volume 110 , I ssue 1 • 2 018 1 C orn from tropical regions is highly photoperiod sensitive; therefore, it fl owers later when grown at temperate latitudes than when grown at tropical latitudes (Ellis et al., 1992). Photoperiod sensitive corn is a short-day plant, and tassel initiation time is decreased when grown under short day conditions. Tropical corn continues vegetative growth when days are longer than the critical photoperiod and may therefore accumulate more biomass than temperate corn when grown at higher latitudes. Th e potential of tropical corn has been evaluated mainly for grain production (King et al., 1972;Oyervides-Garcia et al., 1985;Edmeades et al., 1993;Pulam, 2011). Due to lower grain yields compared to U.S. Corn Belt hybrids, tropical populations have been adapted to be a better source of germplasm for U.S. Corn Belt conditions (Hallauer, 1999;Teixeira et al., 2015).Tropical corn populations adapted to central Iowa conditions include Tuxpeño, Suwan, and Tuson. For the Tuxpeño adaptation, Hallauer (1994) formed a composite with three sources from Mexico (one short plant height, one "Puccinia sorghi resistant", and one early fl owering tropical population). For the Suwan adaptation, Hallauer (1994) used a population developed in Th ailand and selected in it for early fl owering. For the Tuson adaptation, H...

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Section: Phenology and Biomass Production Of Adapted And Non-adapted mentioning

confidence: 99%

Section: Phenology and Biomass Production Of Adapted And Non-adapted mentioning

confidence: 99%

Phenology and Biomass Production of Adapted and Non‐Adapted Tropical Corn Populations in Central Iowa

et al. 2018

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“…Hence, inbred CML 334 and BD74-395 are good exotic stem borer resistance lines which could be adopted in stem borer breeding programs in the tropics. White et al (2011) reported that hybrids derived from local × exotic germplasm (temperate adapted × tropical parents) successfully combined the high biomass potential of tropical maize with the genetic improvements from the past century of corn breeding for high grain yields in temperate environments. The low genetic response for the traits studied indicates slow progress from selection.…”

Section: Discussionmentioning

confidence: 99%

“…Sourcing of novel alleles in introduced or exotic germplasm has been identified as an effective breeding strategy for diversifying the genetic base of adapted materials and for raising the odds of developing superior hybrids (Dhliwayo et al, 2009;White et al, 2011;Adebayo et al, 2013). Recurrent selection procedure has been used extensively in concentrating genes of resistance into the maize genepool.…”

Section: Introductionmentioning

confidence: 99%

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Potential in a collection of adapted and exotic tropical maize inbred lines as resistance source for stem borers

Oloyede-Kamiyo¹,

Ajala²,

Job³

2018

J. Plant Breed. Crop Sci.

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Lepidopteran borers are the most devastating field pests of maize in West and Central Africa. In view of the rapidly changing climate which favours an upsurge of more destructive biotypes of insect pests, diverse sources of resistance from different genetic backgrounds need to be harnessed for crop improvement purposes. Forty tropical maize inbreds comprising adapted and exotic lines from International Institute of Tropical Agriculture (IITA) and International Maize and Wheat Improvement Centre (CIMMYT) maize breeding programs were evaluated for resistance to two species of stem borers-Sesamia calamistis and Eldana saccharina at Ibadan and Ikenne, Nigeria, under artificial infested and non-infested conditions in 2015 and 2016 cropping seasons. The experiment was laid out in a randomized complete block design in three replicates. Data were collected on agronomic traits and stem borer damage parameters. On average, the CML lines had relatively higher grain yield despite the high level of stem tunneling, stalk breakage and cob damage, with the exception of CML 67 (0.19 ton/ha) and CML 71 (0.06 tons/ha). BD 74-395 had the highest yield (1.45 t/ha) among the BDs, despite its high stalk breakage and cob damage. Among IITA lines, KU1414SR/SR, 1368 and 9030STR were the highest yielding with grain yields of 1.71, 1.39 and 1.19 t/ha, respectively. Moderate to high heritability was observed among the stem borer damage parameters. Negative genetic gain was observed in stem tunneling. Mean square of lines was significant for all the traits studied. The top-performing inbreds were similarly grouped using the rank summation index and principal component analysis. The exotic lines had good adaptability and showed potential as sources of stem borer resistance, and could therefore be explored in breeding programs for resistance to Eldana and Sesamia.

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Envisioning the transition to a next‐generation biofuels industry in the US Midwest

Dweikat

Weil

Moose

et al. 2012

Biofuels Bioprod Bioref

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Corn grain ethanol production is a mature industry built on a Midwestern agricultural infrastructure. Second‐ and third‐generation biofuels and bio‐based products industries could take advantage of this robust framework. Significant but not insurmountable barriers remain for grower acceptance of bioenergy crop plants and capital investment in transitioning from grain to lignocellulosic biomass at scale. The existing infrastructure in the Midwest provides a model for implementing an environmentally responsible and sustainable next‐generation biofuels industry into the agro‐economy. © 2012 Society of Chemical Industry and John Wiley & Sons, Ltd

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Tropical Maize: Exploiting Maize Genetic Diversity to Develop a Novel Annual Crop for Lignocellulosic Biomass and Sugar Production

Cited by 18 publications

References 28 publications

Phenology and Biomass Production of Adapted and Non‐Adapted Tropical Corn Populations in Central Iowa

Phenology and Biomass Production of Adapted and Non‐Adapted Tropical Corn Populations in Central Iowa

Potential in a collection of adapted and exotic tropical maize inbred lines as resistance source for stem borers

Envisioning the transition to a next‐generation biofuels industry in the US Midwest

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