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Short-term NO 3 - uptake and translocation to shoots appears to be limited relative to NH 4 + uptake and translocation in southern highbush blueberry when plants are previously fertilized with NH 4 NO 3 .
An efficient system to regenerate shoots on excised leaves of greenhouse-grown wild lowbush blueberry (Vaccinium angustifolium Ait.)
Thus, a blueberry shoot proliferation medium containing 15–29 mM sucrose is recommended for explants later used for genetic transformation.
Some blueberry clones may avoid infection by delaying production of susceptible tissue until after ascospore release by M. vaccinii-corymbosi.
These data indicate that blueberry shoots are capable of assimilating NO3- when it is directly supplied to these tissues.
Together, these data suggest that limitations in the uptake and translocation of NO3- to the shoots may limit overall NO3- assimilation capacity in blueberry.
Blueberry plants do not seem to be able to quickly colonise bare wee...
This would lead to a long-term goal of reducing splitting susceptible blueberry cultivars in commercial plantings.
An efficient protocol is developed for adventitious shoot regeneration from nodal and leaf explants of the half-highbush blueberry cultivar ‘Northland’.
The established methods could be used for rapid propagation of highbush and rabbiteye hybrid derivative cultivars for commercial blueberry production.

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How do plant nitrogen transporters work in the uptake of nitrogen from the soil?
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Plant nitrogen transporters play a crucial role in the uptake of nitrogen from the soil. Nitrate (NO3-) transporters, such as NRT1, NRT2, and CLC families, facilitate the absorption and translocation of nitrate in plants at the root level. These transporters are essential for nitrogen uptake, transport, assimilation, and distribution processes, influencing nitrogen use efficiency (NUE) and crop productivity. Additionally, mycorrhizal interactions can enhance nitrogen uptake in plants through specific transporters like ZmAMT3;1, which mediate high-affinity ammonium transport from arbuscular mycorrhizal fungi to plants, contributing significantly to nitrogen acquisition efficiency. Understanding the regulation of nitrogen uptake, allocation, and signaling pathways is crucial for improving nitrogen usage in plants and achieving sustainable crop production.
How often does mango leaves grow?
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Mango leaves exhibit growth patterns that vary during their developmental stages. Initially, mango leaves grow rapidly through cell division and enlargement processes within the first two weeks of their life, followed by changes in dry weight, water content, and rigidity up to week six. The growth and development of mango leaves can be monitored using tools like SPAD meters, which show significant increases in SPAD readings as the leaves age, indicating growth progression. Furthermore, studies on Mangifera indica seedlings reveal detailed growth analyses, including factors like relative growth rate, specific leaf area, light capture per unit plant mass, and unit leaf rate, which contribute to the overall growth and development of the seedlings over a period of 119 to 124 days. Overall, mango leaves undergo dynamic growth processes during their early stages, with distinct changes in various parameters contributing to their development.
How do container, growth medium, and root system affect the overall health and yield potential of citrus trees?
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Container size, growth medium, and root system significantly impact citrus tree health and yield potential. Research shows that container dimensions with air pruning holes can enhance citrus plant growth, including rootstock, affecting overall development. Utilizing specific soil blends rich in coir, cypress sawdust, and peat bog can optimize growth and germination of citrus plants. Moreover, techniques like cultivating citrus container mycorrhiza seedlings with AMF and PGPR agents can improve root system nutrient absorption and stress resistance, leading to higher survival rates and reduced chemical fertilizer usage. Container gardening methods, such as growing lime in containers, have been successfully implemented commercially, controlling flowering time and canopy size, ultimately enhancing yield potential under tropical conditions. These findings underscore the critical role of container design, growth medium composition, and root system management in maximizing citrus tree productivity.
How does IOT - Enabled NPK monitoring of Fish Effluent as a Nutrient solution for Aquaponically cultivated lettuce?
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IOT-enabled NPK monitoring of fish effluent as a nutrient solution for aquaponically cultivated lettuce involves real-time monitoring and control systems. This includes sensing and controlling heavy metal concentrations, automatic monitoring of water temperature, pH, lighting, and fish feeding, and developing machine learning models to estimate NPK contents in aquaponically grown lettuce. The nutrient solutions from fish effluent need to be supplemented for optimal plant growth, which can be achieved by estimating the nutrient contents of the plant. Machine learning models utilizing spectral data can accurately estimate nitrogen, phosphorus, and potassium contents in aquaponically grown lettuce, paving the way for precision agriculture in aquaponics.
What is the recommended amount of chicken manure tea should be applied in cucumber?
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The recommended amount of chicken manure tea to be applied in cucumber cultivation is up to 1/8 v/v, as indicated by a study conducted in Iran's Tehran province. This research found that increasing the concentration of chicken manure tea significantly enhanced various essential trace elements in cucumbers, such as Nitrogen, Phosphorous, Potassium, Calcium, Magnesium, Copper, Iron, Zinc, and Manganese. Moreover, the study demonstrated that the nutritional traits of cucumbers treated with 1/4 v/v of chicken manure tea were comparable to those treated with chemical fertilizer, highlighting the effectiveness of manure-based fertilizers in improving the nutritional value of cucumber crops. Therefore, incorporating chicken manure tea at appropriate concentrations can be a beneficial organic fertilizer strategy for enhancing the nutrient content of cucumbers.
What is the molecular mechanism behind the regulation of flowering in Fragaria vesca by phytochrome B and thermos-sensory cues?
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The regulation of flowering in Fragaria vesca involves a complex molecular network influenced by phytochrome B and thermosensory cues. Phytochrome interacting factor 4 (PIF4) and alternative splicing of FLOWERING LOCUS M (FLM) are key players in temperature-responsive flowering. Additionally, blue light and CRY2 interact with CRY2 INTERACTING SPLICING FACTOR 1 (CIS1) to regulate thermosensory flowering by affecting RNA alternative splicing, including that of FLM. In F. vesca, long days activate TERMINAL FLOWER1 (TFL1) and GIBBERELLIN 20-OXIDASE4 (GA20ox4) to maintain vegetative meristems and promote stolon formation, while short days and cool temperatures silence these factors, inducing flowering and branch crown formation. This intricate interplay between phytochrome B, thermosensory cues, and splicing factors orchestrates the precise timing of flowering in Fragaria vesca.
How do container, growth medium, and root system affect the health and yield potential of citrus trees?
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Container size, growth medium composition, and root system health significantly impact citrus tree health and yield potential. Research shows that container dimensions and air pruning holes influence citrus plant growth. Utilizing suitable growth media, such as blends containing coir, cypress sawdust, and peat moss, can enhance citrus growth. Moreover, optimizing root systems through mycorrhiza inoculation and PGPR bacterium agents can improve nutrient absorption, stress resistance, and overall plant vitality. Container gardening techniques also play a crucial role, affecting plant biomass, root morphology, and fruit yield. By carefully selecting containers, growth media, and implementing root system enhancement methods, citrus trees can thrive, leading to improved health and increased yield potential.
How do endophytes contribute to the overall health and resilience of plants under stressful conditions?
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Endophytes, including fungi and bacteria, play a crucial role in enhancing plant health and resilience under stressful conditions. They promote nutrient uptake, stress tolerance, and disease resistance in plants, ultimately improving crop yields. Endophytes can help plants tolerate salinity, drought, and other environmental stressors, making them valuable for farming in marginal lands. By forming symbiotic relationships with plants, endophytes regulate various functions like growth, development, and immune responses. Additionally, endophytes aid in nutrient cycling, biodegradation, and bioremediation processes, contributing to sustainable agriculture and environmental health. Their ability to produce bioactive compounds and phytohormones further supports plant growth and stress tolerance, highlighting their potential as next-generation biostimulants for crop improvement under challenging conditions.
How can Carbonized coconut husk helps the growth of habanero pepper?
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Carbonized coconut husk, known as biochar, has shown promising results in enhancing the growth of pepper plants. Studies have demonstrated that biochar derived from coconut husk can significantly improve the germination rate and early seedling growth of pepper plants, such as chiltepín pepper. Additionally, biochar sourced from coconut husk has been found to enhance the growth performance of sweet peppers, leading to increased yield and improved soil characteristics. Furthermore, the application of coconut fiber dense organic fertilizer, which contains biochar, has shown a significant positive influence on the growth and productivity of cayenne pepper plants. The biochar produced from coconut husk has also been proven to be effective in amending soil properties, increasing pH, organic carbon, and promoting beneficial microbiota for plant growth.
How does xylem embolism affect nutrient upptake in populus?
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Xylem embolism in poplar trees can significantly impact nutrient uptake. When embolisms form due to water stress, a cascade of chemical and transcriptional adjustments occurs, affecting the xylem's ability to transport nutrients. The refilling of embolized vessels requires the up-regulation of osmotically active substances, such as sugars and ions, to generate the water efflux necessary for refilling. Poplar trees respond to water stress by up-regulating aquaporin genes, crucial for restoring xylem transport capacity post-embolism formation. Additionally, the embolism repair process involves a coordinated effort of adjacent living parenchyma cells, which up-regulate genes related to aquaporins, ion transporters, and carbohydrate metabolic pathways. Therefore, xylem embolism can disrupt nutrient uptake mechanisms in poplar trees, impacting their overall nutrient translocation efficiency.
Does the C\N ratio of plants change during the growth stages?
5 answers
The carbon-to-nitrogen (C:N) ratio of plants can indeed change during growth stages. Research indicates that the C:N ratio varies among different plant organs and can be influenced by factors like evolution, environment, and nutrient availability. Studies have shown that the C:N ratio in plants can be affected by factors such as nitrogen deposition, atmospheric CO2 concentration, and plant functional groups. For instance, elevated CO2 concentrations have been found to impact the C:N ratio in rice organs. Additionally, changes in nitrogen supply levels have been linked to alterations in the C:N ratio in potatoes, affecting tuber formation. These findings highlight the dynamic nature of the C:N ratio in plants during different growth stages and under varying environmental conditions.