What is the relationship between grain to leaf area index (GLAI) and rice yield?
Best insight from top research papers
The relationship between grain to leaf area index (GLAI) and rice yield is crucial for understanding rice productivity. Studies have shown that leaf area index (LAI) plays a significant role in determining rice yield. Specifically, LAI has been found to have a positive correlation with rice yield, indicating that an increase in LAI can lead to higher grain yield. Additionally, the dynamics of LAI growth have been linked to soil fertility, with LAI monitoring being identified as an effective tool for evaluating rice production. These findings highlight the importance of monitoring and understanding the relationship between GLAI and rice yield to enhance agricultural practices and improve rice productivity.
Answers from top 5 papers
More filters
| Papers (5) | Insight |
|---|---|
11 Citations | The rice yield in farmers' fields correlates with the leaf area index (LAI) during the later growth stage, indicating a relationship between LAI and productivity, influenced by soil fertility. |
| Not addressed in the paper. | |
| Not addressed in the paper. | |
| Not addressed in the paper. | |
| The leaf area index (LAI) is positively correlated with rice yield. The study generated an equation to estimate yield using LAI, showing a close match with actual yields in Iran. |
Related Questions
Is there a relationship between seed rate and productivity among rice farmers?5 answersThere is a significant relationship between seed rate and productivity among rice farmers. Research indicates that optimizing seed rates can lead to increased grain yield in rice cultivation. Studies have shown that using an optimal seeding rate of 11kg/acre for direct-seeded fine and coarse rice cultivars can result in higher productive tillers and overall yield. Additionally, the availability of high-quality seeds plays a crucial role in enhancing agricultural success and improving productivity in rice production. Moreover, decreasing seeding rates coupled with appropriate agronomic practices like nitrogen application and water management can lead to improved water productivity, nitrogen use efficiency, and grain yield, making rice cultivation more sustainable and profitable for farmers.
What is the relationship between plants rice and weather?3 answersRice cultivation is influenced by weather conditions such as temperature, humidity, rainfall, solar radiation, and microclimatic factors. These factors affect various aspects of rice growth and development, including phenology, biomass production, seed germination, crop duration, and grain yield. Rice is adaptable to a wide range of climatic conditions, but changes in weather patterns and climate variability can have significant impacts on rice production. High temperatures can negatively affect rice development, leading to reduced pollination, pollen germination, and pollen tube growth. Increased CO2 concentration in the atmosphere can initially increase grain yield, but further elevation of CO2 levels can have negative effects on rice. Microclimate modifications can be used to reduce the risk of extreme weather events and increase crop output, contributing to food security and agricultural sustainability. Overall, weather plays a crucial role in the growth and productivity of rice crops, and appropriate mitigation strategies are needed to ensure food security.
What is the significance of estimating correlation analysis in rice breeding?5 answersEstimating correlation analysis in rice breeding is significant because it provides valuable information on the association between different traits and helps in the selection of superior genotypes for improved grain yield. Correlation analysis allows breeders to understand the relationship between yield and its component characters, as well as the interaction among these characters. By determining the correlation coefficients, breeders can identify which traits have a positive or negative influence on grain yield, and prioritize those traits for selection in breeding programs. Additionally, correlation analysis helps in identifying traits that may have a direct or indirect influence on grain yield, allowing breeders to focus on the most important traits for yield improvement. Overall, correlation analysis plays a crucial role in rice breeding by providing insights into the genetic make-up of the crop and guiding the selection of genotypes with desirable traits for higher grain yield.
How does the thousand grain weight of rice affect the yield?5 answersThe thousand grain weight (TGW) of rice directly affects the yield of rice. Increasing TGW can help increase rice grain yield, which is important for addressing global food shortage. Grain size, including length, width, and thickness, is controlled by quantitative trait loci (QTLs) and genes such as GS3, GS5, GW8/OsSPL16, BG2, GS6, GS2, and TGW3. Different allele combinations of these genes have significant effects on rice grain size and weight. QTLs related to grain size are distributed on various chromosomes, including chromosomes 2, 3, 5, 10, and 11. The gene GSW3 negatively regulates grain length, width, and TGW, and its expression levels are correlated with grain size variation. Understanding the molecular mechanisms underlying grain weight and size can optimize strategies for improving yield production. Leveraging gene editing technologies and structural studies can also contribute to future rice breeding applications.
What is the relationship between rice grain volume weight and rice quality?5 answersRice grain volume weight is one of the physical parameters that can affect rice quality. The quality of rice is determined by various factors such as grain size, shape, milling quality, appearance quality, cooking and sensory quality, nutrition quality, and hygiene quality. Grain size and form are important factors to consider in rice quality, and volume weight can be an indicator of these characteristics. The physical traits of rice grains, including volume weight, can be assessed using computer vision methods and image processing techniques. Rice grain quality is a complex trait that reflects the opinions of producers, processors, sellers, and consumers, and it is important to understand the genetic basis that determines quality in rice. Overall, rice grain volume weight is a physical parameter that can contribute to rice quality, but it should be considered in conjunction with other factors to assess the overall quality of rice grains.
What aspects of rice flag leaves affect grain yield?5 answersThe aspects of rice flag leaves that affect grain yield include photosynthetic capacity, stomatal conductance, CO2 assimilation rate, leaf shape, leaf angle, and leaf area. Higher photosynthetic capacity, stomatal conductance, and CO2 assimilation rate in flag leaves contribute to increased grain yield. The shape of the flag leaf, including length, width, length-width ratio, and area, also plays a role in rice yield. Additionally, the angle of the flag leaf influences plant type and yield, with higher angles resulting in increased grain yield. The size and area of the flag leaf, as well as the distribution of nutrients and Rubisco content, are important factors for higher photosynthetic activity and extended lifespan of flag leaves, leading to increased grain yields. Overall, these factors highlight the importance of flag leaf characteristics in determining rice grain yield.