Special growth regulating agent for jatropha and application thereof

Abstract

The invention discloses a special growth regulating agent for jatropha and application thereof. The growth regulating agent is prepared according to the following steps: dissolving cytokinin into a sodium hydroxide solution; then, using distilled water for diluting the solution into mother liquid with the cytokinin concentration between 0.02 mg / mL and 100 mg / mL; and uniformly mixing 2 to 9999 parts of mother liquid, 1 to 10 parts of surface active agents and 0 to 9997 parts of distilled water to obtain the growth regulating agent. The growth regulating agent is uniformly sprayed on the jatropha whole strain until liquid drops drip down before or after 10 days of the occurrence of the blossom buds. After the growth regulating agent is sprayed on the jatropha plants for 1 to 3 times during each flowering period, the generated total flower number, the female flower proportion, the fruit number and the seed yield are respectively 3.6 times, 4.3 times, 4.5 times and 3.9 times of those of untreated jatropha. At the same time, the oil content of the seed is also improved from 31.67 percent to 34.76 percent, and is improved by about 9.8 percent. The invention has the advantages of simple and convenient operation, low cost and obvious economic benefit, and has good application prospects.

Description

technical field [0001] The invention belongs to the technical field of plant growth regulation, and in particular relates to a special growth regulator for jatropha. Meanwhile, the present invention also relates to the specific application of the growth regulator. Background technique [0002] Jatropha curcas L., also known as tung tree, jatropha curcas (Jatropha curcas), tung tree, etc., belongs to the shrubs or small trees of the genus Jatropha in the family Euphorbiaceae. 2-5 meters high, with watery sap, smooth bark; branches pale gray, glabrous, sparsely protruding lenticels, large pith. Leaves are papery, nearly round to oval, 7-18 cm long, 6-16 cm wide, shortly pointed at the top, heart-shaped at the base, entire or 3-5 lobed, bright green above, glabrous, gray below Green, initially softly pilose along veins, then glabrous; palmate veins 5-7; petiole 6-18 cm long; stipules small. Inflorescences axillary, 6-10 cm long, bracts lanceolate, 4-8 mm long; flowers unisex...

AI Technical Summary

Problems solved by technology

The general practice is to carry out vegetative propagation by selecting excellent single plants, in order to obtain new varieties with high proportion of female flowers and large number of fruits, but the actual effect is not ideal

And use plant growth regulator to treat Jatropha Jatropha plant, to increase its total flower number, female flower and hermaphroditic flower ratio, fruit quantity, finally improve the method of seed yield, have not yet seen relevant report in the prior art

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