Why is lettuce one of the cultivars most used as stress indicator crops?
Best insight from top research papers
Lettuce is commonly used as a stress indicator crop due to its sensitivity to various stress factors like salinity, drought, and water stress. Different lettuce cultivars exhibit varying responses to stress conditions, affecting their growth, yield, and biochemical composition. Studies have shown that lettuce plants under stress conditions experience changes in physiological parameters, enzymatic activity, and nutrient uptake efficiency, impacting their overall quality and nutritional value. Furthermore, the genetic architecture of water-stress tolerance in lettuce has been extensively studied to develop water-stress tolerant cultivars, emphasizing the importance of understanding the plant's response to stress for optimal breeding and cultivation practices. The use of lettuce as a stress indicator crop provides valuable insights into the impact of stress on plant growth and development, making it a valuable tool for agricultural research and management.
Answers from top 5 papers
More filters
| Papers (5) | Insight |
|---|---|
01 Dec 2020 9 Citations | Lettuce is commonly used as a stress indicator crop due to its sensitivity to water stress, making it a reliable model for assessing crop water stress levels in real-time. |
7 Citations | Lettuce is a commonly used stress indicator crop due to its high susceptibility to water stress, impacting growth, biomass, and flavor, making it ideal for studying water-stress tolerance in plants. |
| Lettuce is commonly used as a stress indicator crop due to its significant changes in nutritional value under abiotic stress, making it a reliable model for studying plant responses to environmental challenges. | |
| Lettuce cultivars are commonly used as stress indicators due to their sensitivity to saline stress, making them valuable for assessing physiological responses and selecting tolerant varieties for specific regions. | |
| Lettuce is commonly used as a stress indicator crop due to its significant changes in antioxidant enzyme activities, nutrients, and growth when grown in monoculture or intercropped with tomato. |
Related Questions
Is production of lettuce important?4 answersThe production of lettuce is undeniably important due to its significant role in human nutrition. Lettuce is a widely cultivated vegetable, with studies emphasizing its high commercial and social importance, especially in regions like Itabaiana and Juazeiro. Research highlights the sustainable intensification of food production through lettuce cultivation in greenhouse systems, showcasing high crop yields and quality. Furthermore, the World Health Organization recognizes the essential role of lettuce in a healthy diet, emphasizing the need to increase vegetable production, including lettuce. Various studies analyze different aspects of lettuce production, such as the influence of organic matter sources, soil cover, cultivation environments, and the use of advanced technologies like AI and computer vision for optimizing lettuce growth and quality.
How sunlight exposure can affect the growth of the lettuce?5 answersSunlight exposure significantly impacts lettuce growth. Studies show that sunlight contributes to lettuce production by providing essential nutrients and influencing plant morphology. Solar UV radiation affects defensive enzyme activities, antioxidant contents, and phenolic compounds in lettuce, leading to reduced growth. Additionally, light intensity affects photosynthetic pigments, nutritional quality, mineral content, and antioxidant capacity in lettuce, with optimal growth observed under specific light intensity and nutrient solution concentration combinations. Preharvest UV-A treatment enhances the accumulation of essential nutrients like protein, phosphorus, potassium, calcium, and others in lettuce, ultimately improving its nutritional quality. Therefore, ensuring adequate sunlight exposure is crucial for optimizing lettuce growth and nutritional value.
How does nutrient toxicity affect the lettuce plant?5 answersNutrient toxicity, specifically from elements like cadmium, copper, zinc, phosphorus, and iron, can significantly impact lettuce plants. Cadmium exposure affects lettuce morphology and physiology, altering plant height, leaf number, and root weight. Excess copper disrupts growth, decreases chlorophyll content, alters enzyme activity, and affects nutrient uptake. Zinc toxicity reduces growth, chlorophyll, sugar, and protein content in lettuce, with mycorrhizal fungi potentially mitigating some effects. Additionally, phosphorus application affects root elongation in arsenic-contaminated soil, emphasizing the importance of balancing nutrient interactions for optimal plant growth. Overall, nutrient toxicity can lead to reduced growth, altered nutrient uptake, enzyme activity changes, and physiological disruptions in lettuce plants, highlighting the critical role of nutrient balance for plant health and productivity.
How many days lettuce can be Harvest?4 answersLettuce can be harvested at different times depending on various factors. In one study, lettuce was harvested during a 10-day period after treatment with fungicide and insecticide. Another study found that delaying the harvest of lettuce beyond its maximum growth stage decreased its quality. A lettuce spring planting method suggested harvesting 15-18 days after the heads emerge. Additionally, a study used digital image processing to identify the maturity level of lettuce leaves, indicating that lettuce can be classified based on its leaf color. Finally, a study on antibiotic uptake in lettuce found that lettuce was harvested after 21, 36, and 55 days. Therefore, the number of days lettuce can be harvested varies depending on the specific context and purpose.
Dollar weed extract to help lettuce germination5 answersDollar weed extract does not have a direct effect on lettuce germination according to the abstracts provided. However, there are studies on the allelopathic potential of different plant extracts on lettuce germination and growth. Inga laurina leaf extract was found to have an allelopathic effect on lettuce seedlings, inhibiting their development. Ulva lactuca acetone extract also showed an allelopathic potential on lettuce germination and seedling growth, with low concentrations stimulating germination and growth, while high concentrations inhibiting them. These studies suggest that certain plant extracts can affect lettuce germination and growth, but the specific effect of dollar weed extract on lettuce germination has not been investigated in the provided abstracts.
How long does it takes for lettuce to grow?5 answersLettuce growth time can vary depending on various factors such as type, environmental conditions, and cultivation methods. In one study, a growth model for leaf lettuce in a greenhouse environment showed that the experiments took 37 days, with 7 days for germination and 30 days after transplanting to a hydroponic system. Another study mentioned that the life cycle of lettuce, from seed to seed, is typically 4 to 6 months, with crisphead lettuce flowering in 125 to 150 days when grown in a greenhouse. Additionally, lettuce growth in terms of fresh weight increase was slow initially, but once the plants reached about 60 g fresh weight, they grew rapidly. The growth of lettuce in a specific study lasted for 36 days, with different treatments affecting the height and weight of the plants. Overall, the growth time of lettuce can range from several weeks to several months, depending on the specific conditions and type of lettuce being grown.