The,effect,forchlorfenuron,and DIY The effect of forchlorfenuron and various plant growth regul
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Plant growth and development in addition to requires a lot ofnutrients, such as water, inorganic salts, organic compounds, but also requiresa class of active substance which has special regulation function on its growthand development, but the volume is very little, called growth regulators. Now describedthe application techniques of plant growth regulators on watermelon as below:Watermelonfruit undesirable phenomenon is more common in production, causing watermelon hardto bear fruits have many reasons, in plants cultivated, fruit drop is the mostcommon and hard to deal with, it is caused by plant body balance is broken, useplant growth regulators can effectively deal with this balance, improve fruit settingrate, guaranteed watermelon yield. Forchlorfenuron is a kind of cytokine, can promote young fruit cell rapid divideand enlargement, thus improving fruit set or increase fruit. In the morningfrom 7 to 10 pm when watermelon female flowers open, with a brush dipped in a littleForchlorfenuron solution, evenly spread on female ovary and pedicel surface,can effectively improve fruit setting rate. While used, with water diluted 100times is better.Gibberellinis a plant hormone, its use allows the plant rapidly expand nutrient area,enhance the synthesis and utilization of carbohydrates, lay the foundation for increasingproduction. In the early planting of watermelon, due to the changingtemperature environment and transplanting root damage and other adversefactors, it is likely to cause watermelon have stiff seedlings, thin plant body,slow growth and so on. In this case, with 50 ~ 100PPm gibberellin solution sprayingon the watermelon seedlings, 3 to 5 days can significantly contribute to thegrowth of melon roots and stems, show up internode elongation, leaf increases,per unit leaf area chlorophyll content decreased, leaf shallow and other phenomenon.Paclobutrazolis a growth retardants, its use can inhibit plant petiole elongating and leafexpanding, controlling unnecessary leggy plants, so as to achieve the purposeof nurturing seedlings. Transplanting is a common method of watermelon production,nurturing seedlings is the key of seeding work. However, during the seedling emergencyto the first true leaves appear, the next ovule easily stretch, seedbedmanagement with a little inattention, such as the high temperature and humidityis too large will make the seedlings elongating, forming thin and tallseedlings, this seedlings not only easy to catch an illness, and transplantsurvival is poor, is extremely unfavorable to watermelon production. Tests showthat use paclobutrazol can effectively inhibit the elongation of embryos undermelon plants, plant type is dwarf and compact, cotyledons is thick, small anddark green. Even under high temperature conditions will not spindling, so as tonurture strong melon. Watermelon vine grows rapidly, branching is strong, howto use paclobutrazol to control the growing, reducing the workload of pruning,shortening vine length, increase density, for some vigorous growth, high yield watermelonvarieties is very valuable.Increaseproduction and increase sugar, the effect of using sweetener: depends on thegrowth inhibition, due to inhibit the watermelon plant excessive vegetativegrowth, promotes the nutrients transfer and accumulate in fruit, therebyimproving watermelon yield and fruit sugar volume, so it must be ensuredwatermelon plants have adequate nutrition, for growing strong varieties can beapplied early, in the period of flowering to fruit spray 2 or 3 times, for weakgrowing varieties should postpone the use, in fruit enlargement period use onetime. In addition, the fertilizer soil and strong seedlings can be sprayedearly, the dosage should be large, thin weak seedlings should be sprayed later,the dosage should be small, so as to avoid excessive inhibit plant growth,reducing the effective area of nutrition and reduce its yield and quality.Source:http://www.cospcn.com Article Tags: Plant Growth Regulators, Plant Growth, Growth Regulators
The,effect,forchlorfenuron,and