Corn Hybrids for Late Planting in the Southeast

Wiatrak, P. J.; Wright, David L.; Marois, James J.; Sprenkel, R. K.

doi:10.2134/agronj2004.1118

Cited by 17 publications

(17 citation statements)

References 12 publications

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“…The effects of these stress factors on aflatoxin and fumonisin levels in various types of corn hybrids require more study in order to provide a basis for recommendations to growers (Abbas 2005;Robens and Brown 2004). For example, Bt corn hybrids are often recommended to minimize insect damage, which can predispose plants to fungal infection and mycotoxin contamination (Buntin et al 2001;Lauer 2001;Wiatrak et al 2004;Wu et al 2005). Little information exists on the use of Bt hybrids for reducing aflatoxin and fumonisin levels in harvested corn crops (Abbas et al 2002Hammond et al 2004).…”

Section: [Effet De La Température Des Précipitations Et De La Date Dmentioning

confidence: 99%

Effect of temperature, rainfall and planting date on aflatoxin and fumonisin contamination in commercial Bt and non-Bt corn hybrids in Arkansas

Abbas

Shier

Cartwright

2008

phyto

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Corn (maize,Zea mays) is susceptible to contamination with aflatoxins, fumonisins and other mycotoxins, particularly in the southeastern USA. In principle, mycotoxin contamination could be reduced in commercial corn hybrids with shorter growing seasons by planting at dates which minimize plant stress during the critical kernel-filling period. To evaluate this strategy, commercial Bt and non-Bt hybrids were planted in Arkansas in mid-April and early May of 2002, 2004 and 2005. The mid-April planting date resulted in lower aflatoxin contamination in harvested corn each yr and in significantly less frequent contamination above a regulatory action level in 2005 and overall than did the early-May planting date in both Bt and non-Bt corn. The mid-April planting date resulted in significantly lower total fumonisin contamination in harvested corn and in less frequent contamination above a regulatory advisory level than the early May planting date in 2 of 3 yr and overall in both Bt and non-Bt corn. All fumonisin subtypes studied were reduced. Frequent co-occurrence of aflatoxin and fumonisin was observed. Fumonisin levels averaged lower in Bt hybrids than in non-Bt hybrids at all plantings. Reduced aflatoxin and fumonisin contamination with mid-April planting could not be explained by any measure of heat stress during the kernel-filling period.

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Section: [Effet De La Température Des Précipitations Et De La Date Dmentioning

confidence: 99%

Effect of temperature, rainfall and planting date on aflatoxin and fumonisin contamination in commercial Bt and non-Bt corn hybrids in Arkansas

Abbas

Shier

Cartwright

2008

phyto

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“…Moreover, the MSUES-suggested dates are for typical cultivars, whereas our estimated dates are based on new hybrids. In southeastern USA, maize can be planted from late February through early July, and summer rainfall is often more favorable for the crop planted from mid-May to mid-June [37]. Maize hybrids that are being developed from tropical germplasm are adapted to the summer rainfall pattern in this region [72].…”

Section: Discussionmentioning

confidence: 99%

“…Maize hybrids that are being developed from tropical germplasm are adapted to the summer rainfall pattern in this region [72]. However, planting is generally terminated by early May due to severe insect pressure later in the season [37]. Because our study represented only standard production conditions (no occurrence of pest and disease assumed), the estimated optimum planting windows were defined mainly by genotype and weather variables.…”

Section: Discussionmentioning

confidence: 99%

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Crop Management Effects on the Energy and Carbon Balances of Maize Stover-Based Ethanol Production

Woli

Paz

2014

Energies

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This study was conducted to identify the crop management options-the combinations of various cultivars, irrigation amounts, planting dates, and soils-that would maximize the energy sustainability and eco-friendliness of maize (Zea mays L.) stover-based ethanol production systems in the Mississippi Delta. Stover yields simulated with CERES-Maize were used to compute net energy value (NEV) and carbon credit balance (CCB), the indicators of sustainability and eco-friendliness of ethanol production, respectively, for various scenarios. As the results showed, deeper soils with higher water holding capacities had larger NEV and CCB values. Both NEV and CCB had sigmoid relationships with irrigation amount and planting date and could be maximized by planting the crop during the optimum planting window. Stover yield had positive effects on NEV and CCB, whereas travel distance had negative. The influence of stover yield was larger than that of travel distance, indicating that increasing feedstock yields should be emphasized over reducing travel distance. The NEV and CCB values indicated that stover-based ethanol production in the Mississippi Delta is sustainable and environmentally friendly. The study demonstrated that the energy sustainability and eco-friendliness of maize stover-based ethanol production could be increased with alternative crop management options.

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“…The colder spring temperature due to PNA+ caused freezing soils, cooler soil temperature, and wet early season soil conditions, which delayed planting date. Significant maize yield reductions were found when planting was delayed in mid-South (Bruns and Abbas 2006) and southeast (Wiatrak and Wright 2004) as well as in Corn Belt states (Swanson and Wilhelm 1996) mainly due to more frequent influence and pest and diseases at late planting (Long et al 2017). PNA+ may have caused the delayed planting dates, leading to crop failure nearly 50% (115) of maize producing climate divisions in 2012.…”

Section: The Impact Of Individual Climate Oscillation On Maize Crop Fmentioning

confidence: 99%

Changes of crop failure risks in the United States associated with large-scale climate oscillations in the Atlantic and Pacific Oceans

Schillerberg

Tian

2020

Environ. Res. Lett.

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Regions that produce a large supply of agriculture commodities can be susceptible to crop failure, thus causing concern for global food security. The contiguous United States, as one of the major agricultural producers in the world, is influenced by several large-scale climate oscillations that contribute to climate variability: Atlantic Multidecadal Oscillation (AMO), North Atlantic Oscillation (NAO), El-Niño Southern Oscillation (ENSO), Pacific Decadal Oscillation (PDO) and Pacific-North American (PNA). Since local weather conditions are associated with these climate oscillations through teleconnections, they are potentially causing changes of crop failure risks. The objective of this study is to assess climate-induced changes of annual crop failure risks for maize and winter wheat from 1960 to 2016, by analyzing the associations of large-scale climate oscillations with the frequency of crop failure in the rainfed regions of the United States using a Bayesian approach. The analysis revealed that crop failure frequencies showed contrast spatial patterns and different extent under different climate oscillation phases. Among individual oscillations, the positive PNA and negative AMO resulted in the most substantial increase in maize and winter wheat crop failures over a high percentage of climate divisions, respectively. Among oscillation combinations, the positive AMO and negative PDO and the positive AMO and positive PDO resulted in the highest percentage of climate divisions experiencing significant increase of maize and winter wheat crop failures, respectively. Random forest models with climate oscillations accurately predicted probabilities of crop failure, with the inclusion of local surface climate variables decreased or increased the predictive accuracy, depending on regions. These results revealed the plausible drivers of long-term changes of U.S. crop failure risks and underscore the importance for improving climate oscillation forecasting for early warning of food insecurity.

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Corn Hybrids for Late Planting in the Southeast

Abstract: and Central America. These tropical corn hybrids are adapted to planting at times that take advantage of rain-

Cited by 17 publications

References 12 publications

Effect of temperature, rainfall and planting date on aflatoxin and fumonisin contamination in commercial Bt and non-Bt corn hybrids in Arkansas

Effect of temperature, rainfall and planting date on aflatoxin and fumonisin contamination in commercial Bt and non-Bt corn hybrids in Arkansas

Crop Management Effects on the Energy and Carbon Balances of Maize Stover-Based Ethanol Production

Changes of crop failure risks in the United States associated with large-scale climate oscillations in the Atlantic and Pacific Oceans

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