No-tillage combined with deficit irrigation improves canopy photosynthesis and water use efficiency to stabilize yield in intercropped maize
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.No-tillage intercropping with medium irrigation maximizes maize yield and water-use efficiency in arid regions. This integrated approach enhances canopy photosynthesis and enzyme activity for climate-resilient crop production.
Area Of Science
- Agricultural Science
- Agronomy
- Plant Physiology
Background
- Water scarcity and uneven irrigation challenge maize production in arid zones.
- Intercropping and conservation tillage individually improve crop productivity but their combined effects with irrigation are understudied.
Purpose Of The Study
- To evaluate the integrated impacts of tillage, planting pattern, and irrigation on maize production.
- To understand effects on maize yield, canopy photosynthesis, water-use efficiency, and gene expression.
Main Methods
- A three-factor split-plot experiment was conducted in an arid agro-ecosystem.
- Treatments included no-tillage (NT) vs. conventional tillage (CT), maize-pea intercropping (IM) vs. sole maize (SM), and low (I1), medium (I2), or high (I3) irrigation regimes.
Main Results
- No-tillage intercropping under medium irrigation (NTIMI2) yielded highest, surpassing other treatments.
- NTIMI2 enhanced canopy photosynthesis, prolonged the functional period, and upregulated key photosynthetic enzyme genes.
- Water-use efficiency was maximized under NTIMI2, maintaining high yields with reduced water input.
Conclusions
- Coordinated tillage and irrigation strategies regulate canopy carbon assimilation and source-sink dynamics.
- No-tillage intercropping with medium irrigation offers a scalable solution for climate-resilient, water-efficient maize production in arid regions.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
Related Concept Videos
Photosynthesis is a multipart, biochemical process that occurs in plants as well as in some bacteria. It captures carbon dioxide and solar energy to produce glucose. Glucose stores chemical energy in the form of carbohydrates. The overall biochemical formula of photosynthesis is 6 CO2 + 6 H2O + Light energy → C6H12O6 + 6 O2. Photosynthesis releases oxygen into the atmosphere and is largely responsible for maintaining the Earth’s atmospheric oxygen content.
Photosynthetic reactions...
All living organisms on Earth are directly or indirectly dependent on photosynthesis. It is the only biological process that can capture energy from sunlight and convert it into chemical energy that every organism can use to power its metabolism. Photosynthesis is also the source of oxygen required by many living organisms.
Types of Organisms Based on their Modes of Nutrition
Broadly, there are two main categories of organisms based on their modes of nutrition — autotrophs and...
Cellular respiration produces 30 - 32 ATP per glucose molecule. Although most of the ATP results from oxidative phosphorylation and the electron transport chain (ETC), 4 ATP are gained beforehand (2 from glycolysis and 2 from the citric acid cycle).
The ETC is embedded in the inner mitochondrial membrane and is comprised of four main protein complexes and an ATP synthase. NADH and FADH2 pass electrons to these complexes, which pump protons into the intermembrane space. This distribution of...
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
The theoretical yield of a reaction is the amount of product estimated to form based on the stoichiometry of the balanced chemical equation. The theoretical yield assumes the complete conversion of the limiting reactant into the desired product. The amount of product that is obtained by performing the reaction is called the actual yield, and it may be less than or (very rarely) equal to the theoretical yield.
Percent Yield
In the case of chemical reactions, the actual yield of the product is...
Oxygenic photosynthesis is a fundamental process in which light energy is harnessed to drive the oxidation of water, leading to the production of molecular oxygen (O₂), adenosine triphosphate (ATP), and nicotinamide adenine dinucleotide phosphate (NADPH). This process is essential for sustaining aerobic life on Earth and is primarily carried out by cyanobacteria, algae, and plants. The core of oxygenic photosynthesis lies in the thylakoid membranes, where chlorophyll pigments facilitate...