Effect of drought stress on in vitro neutral detergent fiber digestibility of corn for silage

Ferreira, Gonzalo; Martin, L.L.; Teets, Christy L.; Corl, Benjamin A.; Hines, Steve; Shewmaker, Glenn E.; Haro-Martí, Mario E. de; Chahine, Mireille

doi:10.1016/j.anifeedsci.2020.114803

Cited by 12 publications

(21 citation statements)

References 27 publications

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“…Drought effect on NDF was not significant in 2017, but it significantly decreased this nutritional parameter in 2018 in which no genotypic effect was observed. The effect of drought on fiber utilization by animals are less clear and limited (Vincent et al, 2005;Ferreira and Brown, 2016;Ferreira et al, 2021).…”

Section: Reduction Of Cultivars Performance In Agronomic Developmental and Grain Quality Traits Under Drought Stressmentioning

confidence: 99%

Breeding Driven Enrichment of Genetic Variation for Key Yield Components and Grain Starch Content Under Drought Stress in Winter Wheat

et al. 2021

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Drought is one of the major abiotic stress factors limiting wheat production worldwide, thus threatening food security. The dissection of the genetic footprint of drought stress response offers strong opportunities toward understanding and improving drought tolerance (DT) in wheat. In this study, we investigated the genotypic variability for drought response among 200 diverse wheat cultivars (genotypes) using agronomic, developmental, and grain quality traits (GQT), and conducted genome-wide association studies (GWAS) to uncover the genetic architectures of these important traits. Results indicated significant effects of genotype, water regime and their interactions for all agronomic traits. Grain yield (GY) was the most drought-responsive trait and was highly correlated with kernels number per meter square (KN). Genome-wide association studies revealed 17 and 20 QTL regions under rainfed and drought conditions, respectively, and identified one LD block on chromosome 3A and two others on 5D associated with breeding progress (BP). The major haplotypes of these LD blocks have been positively selected through breeding and are associated with higher starch accumulation and GY under drought conditions. Upon validation, the identified QTL regions caring favorable alleles for high starch and yield will shed light on mechanisms of tolerance to drought and can be used to develop drought resistant cultivars.

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Section: Reduction Of Cultivars Performance In Agronomic Developmental and Grain Quality Traits Under Drought Stressmentioning

confidence: 99%

Breeding Driven Enrichment of Genetic Variation for Key Yield Components and Grain Starch Content Under Drought Stress in Winter Wheat

et al. 2021

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“…The substantially greater NV reported in the current study compared to the values reported for stockpiled monoculture bermudagrass by Holland et al (2018) is highly related to the presence of alfalfa in this study and to differences in methodologies to analyze forage digestibility. The method for quantification of IVTDMD provides greater concentration than that to quantify in-vitro DM digestibility as reported by Ferreira et al (2021). In the current study, we report digestibility as IVT-DMD, while Holland et al (2018) report data as in-vitro DM digestibility.…”

Section: Forage Nutritive Valuementioning

confidence: 71%

“…The method for quantification of IVTDMD provides greater concentration than that to quantify in‐vitro DM digestibility as reported by Ferreira et al. (2021). In the current study, we report digestibility as IVTDMD, while Holland et al.…”

Section: Resultsmentioning

confidence: 98%

Agronomic and structural responses of stockpiled alfalfa–bermudagrass mixtures

Vasco

Silva

Burt

et al. 2023

Crop Forage & Turfgrass Mgmt

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The incorporation of alfalfa (Medicago sativa L.) into bermudagrass [Cynodon dactylon (L.) Pers.] forage systems in the southern United States has increased. Stockpiling this mixture may extend the grazing season into the fall and winter months with high‐quality forage. The objective of this 2‐year study was to evaluate agronomic and structural responses of alfalfa–bermudagrass mixtures managed under five stockpiling periods (6, 8, 10, 12, or 14 weeks) in two locations (Shorter, AL, and Tifton, GA). Across locations, stockpiling mixtures for 8 weeks or longer (2400 lb DM ac−1, on average) resulted in greater (P = 0.001) herbage accumulation than 6 weeks (3185 lb DM ac−1). The alfalfa proportion was similar among stockpiling periods in Shorter but greater (P = 0.043) at 10 and 14 weeks than 6, 8, and 12 weeks in Tifton. A location × year × stockpiling interaction was observed for crude protein (CP, P < 0.001) and in vitro true dry matter digestibility over 48 h (IVTDMD48, P < 0.001). Crude protein concentrations were similar among stockpiling periods in 2020 in both locations. In 2019, however, CP concentrations reduced with increasing stockpiling period length in Shorter and were similar among treatments in Tifton, except for the lesser CP at 8 than at 10, 12, and 14, weeks. Forage IVTDMD48 concentrations declined with increasing stockpiling period length at both locations, with a more pronounced decline in Shorter in 2019. Results suggest that stockpiling alfalfa–bermudagrass mixtures for up to 8 weeks is a viable option to supply high nutritive value forage and lower lodging losses into the early winter months.

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“…From an agricultural perspective, the major and most direct effect of drought stress is on the yield reduction of crops for grains and forages and yield reduction of pastures and rangelands. At a plant tissue level, however, limited information exists regarding the impact of drought stress on forage quality ( Lohölter et al, 2012 ; Ferreira et al, 2015 , 2021a , b ). Even more, the current understanding of the impact of drought stress on corn silage degradability is confusing.…”

mentioning

confidence: 99%

Effect of drought stress on neutral detergent fiber degradation kinetics of corn for silage

et al. 2023

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Graphical Abstract Summary: Limited information exists about the effect of drought stress on forage fiber digestibility. In a greenhouse, we evaluated the effect of drought stress on neutral detergent fiber (NDF) digestibility of corn tissues. Corn plants were subjected to abundant (598 mm) or restricted (273 mm) irrigation regimens, and stems and leaves were incubated in the rumen of dairy cows. According to the conditions of this study, we concluded that drought-stressed corn had a marginal increase in NDF degradability of leaf blades but not in stem internodes, that drought stress had no effects on the effective ruminal degradation of NDF when comparing irrigation treatments within hybrids, and that the effect of drought stress on NDF degradability of corn for silage is still inconclusive. We also observed that the growth of corn plants in a greenhouse does not result in plants with the anatomical structure typically seen in the field.

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Effect of drought stress on in vitro neutral detergent fiber digestibility of corn for silage

Cited by 12 publications

References 27 publications

Breeding Driven Enrichment of Genetic Variation for Key Yield Components and Grain Starch Content Under Drought Stress in Winter Wheat

Breeding Driven Enrichment of Genetic Variation for Key Yield Components and Grain Starch Content Under Drought Stress in Winter Wheat

Agronomic and structural responses of stockpiled alfalfa–bermudagrass mixtures

Effect of drought stress on neutral detergent fiber degradation kinetics of corn for silage

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