Application effect of forchlorfenuron on fruit trees
Fruit safe, fruit trees without pollution is the key to use drug. Prohibit garden to use highly toxic, high residue pesticides; promote using biological pesticides and low toxicity, low-residue pesticides, produce pollution-free safety fruits.
Forchlorfenuron was also known Fengbao, fast big, and so on. Forchlorfenuron is phenyl urea derivatives, with cell division activity. Can promote cell division, differentiation and expansion, promote protein and organ formation, has the effect of enhancing crops and fruit trees resistance and anti-aging.
Forchlorfenuron is an efficient plant growth regulator, was first developed by the United States and confirm their plant growth regulating function. Mainly used in the food and fruit production, particularly for grape, kiwi fruit has significantly activity, increase production significantly, some varieties can increase 50% of the yield, the cell division activity is 10 times of benzyladenine, 100 times of the 4-pyridyl urea.
Forchlorfenuron functional role: promote fruit enlargement, Forchlorfenuron can significantly promote the grapes, kiwi, cucumbers and other fruits and vegetables enlarging fruits, increase crop yields. Promote fruit set, forchlorfenuron promote the fruit set of fruits and vegetables and a variety of fruits. Such as used forchlorfenuron in grapes flowering or before flowering can obviously promote bearing fruit, to fruit size is almost no effect or a slight impact; while used after flowering can not promote bearing fruit, but significantly promote fruit enlargement. Forchlorfenuron also can induce callus formation. And the cell proliferation rate is significantly higher than other plant growth regulating substances. Improve fruit quality, while forchlorfenuron promoting crop growth can improve the quality of agricultural products. Induce parthenocarpy, the effect of forchlorfenuron induced parthenocarpy in watermelon, bitter gourd and other crops had been confirmed. Used forchlorfenuron to deal with before flowering, then develops into the completely stenospermocarpy; use forchlorfenuron to deal with after flowering, can promote fruit enlarging.
Some application crops and effect of forchlorfenuron, grapes: in grapes final flowering (before physiological fruit drop), with 3-8mg/L forchlorfenuron spray ear, helps to reduce due to poor pollination, low temperature, rain, drought induced shattering, improve fruit set; after blossom fall 10-15 days, with 5-15mg/L forchlorfenuron dip young fruit ear, is able to accelerate the young fruit enlargement, increased fruit weight and single panicle weight. Cucumber: on bloom or before flowering, with 5-20mg/L Forchlorfenuron dipping or spraying to juvenile fruit can promote young fruit development, early market, improve the yield and goods value.
Use Forchlorfenuron should note: Forchlorfenuron with higher physiological activity, the used concentrations too high can cause hollow fruit, deformities, cracking and other side effects, should be required to use the period, concentration, dosage and method of use. Should be used as soon as it is mixed, the initial use should first test a small area, gain experience and then large scale used. For worse growing, heavy pests and diseases plants, can not achieve the desired increase production effect.
The forchlorfenuron treated site is small melon, not flowers or stems; uneven treat small melon will form deformity melon; initial use forchlorfenuron should be conducted small-scale experiments or consult agricultural sector; drug liquid should use as soon as it is mixed, if spraying after 6 hours meet raining should be remedy; the usage time should be evening or in the morning; with artificial pollination will be better, but do not repeated spray; when at high temperature can use lower concentrations forchlorfenuron, at low temperature can use higher concentrations, the concentrations can not be arbitrarily increased, or it will be prone to bitter, hollow, deformed fruit and other phenomena; Forchlorfenuron should not mix putting with food, seed, feed, do not let children and livestock touch it.
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