What is the most used peach varieties graft on Guardian rootstocks in california?5 answersThe most commonly used peach variety grafted on Guardian rootstocks in California is the 'Cresthaven' peach. Research conducted on various peach rootstocks, including Guardian rootstocks, revealed that 'Cresthaven' was budded onto twelve different rootstocks, including Nemaguard, Flordaguard, and several Guardian selections. Additionally, studies have shown that the 'HBOK 27' rootstock, which is compatible with peach scion cultivars, provides moderate vigor control and is suitable for commercial peach production. These findings highlight the significance of 'Cresthaven' peach variety on Guardian rootstocks in California's peach orchards, emphasizing the importance of selecting appropriate rootstocks for optimal tree growth and fruit production.
How do the yields of grafted and non-grafted crops compare in terms of productivity?4 answersGrafted plants generally show greater vegetative growth, while non-grafted plants tend to be more productive in growing cycles with restricted light and low temperatures. In terms of fruit yield, grafted plants have been found to have higher yields compared to non-grafted plants. Specifically, grafted tomato plants onto vigorous rootstocks increased marketable yields by 24-35% compared to non-grafted plants. Additionally, grafted plants had higher fruit dry matter production, fruit number, and overall yield compared to non-grafted plants. However, the effect of grafting on fruit quality traits such as soluble solids content, pH, lycopene concentration, and titratable acidity was not significant. Overall, grafting has shown potential to increase productivity in terms of fruit yield, but the specific effects may vary depending on the crop, rootstock, and growing conditions.
What is radiation grafting?4 answersRadiation grafting is a technique used to modify the properties of polymers by adding functional groups through the process of polymerization. It involves exposing the polymer to radiation, such as gamma irradiation or electron beam irradiation, which creates active sites on the polymer surface. Monomers are then introduced to these active sites and undergo grafting, forming covalent bonds with the polymer backbone. This process is difficult to achieve using conventional chemical methods. Radiation grafting has been used to enhance the hydrophilicity, mechanical properties, thermal stability, and compatibility of polymers, such as silicone rubber films, polypropylene films, and cellulose fibers. It has also been applied to natural fibers, like lignocellulosic fibers, to improve their compatibility with commercial resins for use in polymer composites. The technique offers a versatile and environmentally friendly approach for modifying polymer materials.
Which tree has anesthesia properties?4 answersThe tree shrew (Tupaia belangeri) has been studied for its anesthesia properties. Studies have investigated the appropriate anesthetic dose for tree shrews, with a commonly reported dose of 40 mg/kg of sodium pentobarbital. However, this dose was found to be insufficient for surgical requirements. An equivalent dose of 62 mg/kg, calculated based on body surface area conversion, was found to achieve an anesthetic time of 44.28 ± 3.95 min with no serious or fatal effects. Sodium pentobarbital was found to have inhibitory effects on blood pressure, pulse rate, respiratory rate, and rectal temperature in tree shrews, particularly on the respiratory rate. Therefore, the use of the equivalent dose of sodium pentobarbital was found to be effective in anesthetizing tree shrews.
Which trees has anesthesia properties?5 answersMany trees have anesthesia properties. Some of these trees include Ailanthus altissima, Bouganvillea spectabilis, Cedrus deodera, Madhuca longifolia, Melia azerdarach, Opuntia ficus-indica, Podocarpus macrophyllus, Polyalthia longifolia, Swietenia macrophylla, Toona ciliata, Tecoma stans, and Terminalia mantaly.
What is grafting in plants?5 answersGrafting in plants is a horticultural technique that involves joining two different plant genotypes to form one plant. It is used to control the vigor of the scion and provide tolerance to soil conditions and pests. Grafting was originally developed in woody species but has now been extended to herbaceous species, including the model plant Arabidopsis thaliana. The success of grafting relies on the connection of vascular tissues, which is regulated by plant hormones such as auxins, cytokinins, and gibberellins. Grafting methods involve selecting healthy stocks and scions, making cuts on both, aligning the cut surfaces, and securing them with a thin film. This technique allows for the production of chimeras that combine desirable traits and has applications in enhancing plant health, yield, and postharvest life. Grafting also offers the opportunity to save and multiply endangered tree varieties and create trees with multiple flowers and fruits.