Advertisment

Exploring the Impact of Elevated CO2 and Temperature on Maize Hybrids: Insights for Future Crop Cultivation

author-image
Ayanna Amadi
New Update
NULL

Exploring the Impact of Elevated CO2 and Temperature on Maize Hybrids: Insights for Future Crop Cultivation

Advertisment

As climate change continues to influence our planet, its implications on agriculture and food production cannot be overlooked. This article discusses a study that investigates the growth and yield responses of four popular maize hybrids under elevated levels of atmospheric carbon dioxide (eCO2) and increased temperature (eT). The study, conducted under controlled conditions at the Free Air Temperature Elevation (FATE) facility in Hyderabad, India, offers valuable insights into the future of maize cultivation under diverse environmental conditions.

Advertisment

The Role of Elevated CO2 and Temperature on Crop Yields

The research examines the impact of elevated CO2 concentration and temperature on the productivity of C3 and C4 plants, with a particular focus on maize crops. The results indicate a stimulation of biomass and improved yield under these conditions. This is particularly significant for the maize hybrids DHM117, DHM121, NK6240, and 900M GOLD, which showed robust growth and yield responses under elevated CO2 and temperature conditions.

Understanding Physiological Parameters

Advertisment

An accompanying study conducted a free air concentration enrichment experiment on different mustard varieties to better understand the relationship between plant physiological parameters and changes in atmospheric concentration of O3 and CO2. This study highlighted that all measured physiological parameters, including the rate of gas exchange between the plant and the atmosphere, are highly sensitive to changes in the relative concentrations of O3, CO2, and their interaction, thereby affecting crop growth and development.

Projected Temperature Changes

Understanding the potential future impact of climate change on crop production is crucial. A web page provides historical observed temperature anomalies and future projected temperature changes for global growing areas of four individual crops, including maize. These projections under different greenhouse gas concentration scenarios provide valuable insights into the potential challenges and adaptations necessary for successful crop cultivation in the future.

Advertisment

Interaction of Elevated CO2 with Nitrogen Fertilizer

A study explores the effects of interaction between elevated atmospheric CO2 concentration and nitrogen fertilizer on the photosynthetic characteristics and yield of maize. It reveals that maize crops respond positively to elevated CO2 levels, and that nitrogen fertilizers can further enhance their photosynthesis and overall yield.

Addressing the Impact of Invasive Weed

Advertisment

Besides climate variables, other challenges like invasive weeds can also impact crop yields. A study discusses the impact of Parthenium hysterophorus, a high impact invasive weed in Pakistan, on maize crop losses. It confirms that higher densities of P. hysterophorus result in higher levels of yield loss, underscoring the importance of effective weed management in crop cultivation.

Impact of Crop Residues and Nitrogen Rates

A study further explores the impact of crop residues integration with nitrogen rates on nitrous oxide emissions, maize yield, and soil quality. It suggests that maize production could benefit from residue retention with the current N rate for better yield, soil quality, and N2O mitigation.

In conclusion, the studies provide valuable insights into the complex interplay of various factors influencing the growth and yield of maize crops under changing climatic conditions. These findings are not only crucial for understanding the potential challenges to maize cultivation but also for developing effective strategies for sustaining and improving crop yields in the future.

Advertisment
Chat with Dr. Medriva !