Central South University of Forestry and Technology

Hailang Tong

Xiaoyu Zhang

Tongyue Zhang

Hongda Deng

Zhiqiang Han

Xing Liu

The present disclosure relates to an induction method for improving a yield and fertility of 2n pollen in, including: subjecting a flower branch of theto a high-temperature treatment when a style length L of thedevelops to 1.97 mm<L≤2.57 mm. The method specifically includes: applying N,N'-dimethylthiourea (DMTU) or a DMTU-based mixed solution to theat a meiosis stage, and then conducting the high-temperature treatment to induce production of 2n pollen. In the method of the present disclosure, the application of the high-temperature treatment precursor to thebefore the high-temperature treatment can significantly improve a fertility rate of 2n pollen.

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Changsha, China

Hailang Tong