There are not many changes in the plant flower organ ratio in the prior art, such as Chinese Patent Publication No. CN101292607A discloses “a kind of chemical reagent to the control method of Jatropha curcas flower organ ratio”, it is the effect that ethephon and gibberellin play simultaneously, but , it is not ideal to increase the ratio of male and female flowers of Jatropha curcas. As one of the plants that can produce biodiesel, Jatropha curcas is rich in oil, has strong oil fluidity and good quality, and has high research value and economic value. As an energy plant, it is more and more widely cultivated. Its potential medicinal value is constantly being researched and developed more deeply and systematically.
Jatropha curcas is monoecious with dioecious flowers and cymes, which affect the yield of Jatropha curcas seeds. A major factor for the low fruit bearing rate is that the ratio of male and female flowers in Jatropha curcas is too low. For this reason, it is urgent to research the types and concentrations of hormones that are suitable for improving the high yield of Jatropha curcas, so as to increase the yield of Jatropha curcas, guide the planting and production of Jatropha curcas, better exert its own economic value, and speed up the scientific research of Jatropha curcas industry. Provide theoretical and technical guidance for Jatropha planting areas and bases, and improve the income of farmers in rural areas who take Jatropha curcas as their main economic source.
A new invention discloses a new application of 6-FurfurylaminopurineKT in plant growth regulation, which is to use kinetin KT for regulating the sex ratio of Jatropha curcas flowers and improving the ratio of male and female flowers of Jatropha curcas. Under certain conditions, the concentration range of 6-FurfurylaminopurineKT spraying is 1mg/L-5mg/L, which refers to the certain condition that the plant is more than 2 years old. When spraying, the droplets are small and uniform. The dosage is limited to the point where the sprayed site is wet and there are tiny droplets flowing down. The spraying time is 14:30-16:30 in the afternoon on a sunny day; if it rains within 36 hours after spraying Re-spray; the optimal spray concentration of 6-FurfurylaminopurineKT is 3mg/L. The invention solves the problem of low ratio of male and female flowers of Jatropha curcas, the present invention can increase the ratio of male and female flowers of Jatropha curcas by 14.80%-36.18%, effectively improve the yield per plant of Jatropha curcas, and achieve the purpose of increasing yield.