Related Experiment Video
Updated: Mar 27, 2026
08:35
Methods for Performing Crosses in Setaria viridis, a New Model System for the Grasses
Published on: October 1, 2013
22.4K
Genotype-environment interactions in elephant grass: identifying superior genotypes for energy.
C L Leite1, R F Daher1, J G S Santana1
1Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF, Laboratório de Engenharia Agrícola, Campos dos Goytacazes, RJ, Brasil.
Brazilian Journal of Biology = Revista Brasleira De Biologia
|March 25, 2026
Summary
Elephant grass breeding identified high-yielding (G15) and stable (G9) genotypes for renewable energy. Early harvests are most informative for selecting improved elephant grass varieties.
Area of Science:
- Agronomy
- Plant Breeding
- Bioenergy
Background:
- Elephant grass (Cenchrus purpureus) is a key crop for forage and renewable energy due to its high biomass potential and adaptability.
- Improving dry matter yield (DMY) and environmental stability is crucial for elite elephant grass breeding programs.
Purpose of the Study:
- Investigate genotype × environment interactions in elephant grass.
- Identify superior genotypes for dry matter yield and stability for bioenergy applications.
Main Methods:
- Genotype × environment interactions were analyzed using the GGE biplot method.
- A randomized complete block design evaluated elephant grass genotypes across four harvests (environments) with three replications.
Main Results:
- The first and second harvests explained the most genotype variation, indicating early growth stages are critical for selection.
- Genotype G15 (FIII) achieved the highest average DMY (18.2 t ha-1), 12% above the mean.
- Genotype G9 (FII) demonstrated consistent performance across environments, signifying broad adaptability.
Conclusions:
- Genotype G15 is a promising high-yielding candidate for energy production.
- Genotype G9 offers stability, making it suitable for diverse environmental conditions.
- Further research under water stress and varied environments is needed to confirm these findings.
More Related Videos
Related Concept Videos
02:27Background and Environment Affect Phenotype
8.1K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
8.1K
01:59Plant Breeding and Biotechnology
22.2K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
22.2K
01:40Overview of Metabolism
40.9K
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
40.9K
01:20Gene-Environment Interactions
1.6K
Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...
1.6K
02:50Transgenic Plants
9.1K
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
9.1K
01:22Bioreactor Controls-III
51
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
51