The invention belongs to the technical field of new
plant variety cultivation, and discloses a method for breeding a high-yield
xanthoceras sorbifolia strain. The method for breeding the high-yield
xanthoceras sorbifolia strain comprises the following steps: collecting seeds, breaking a
dormancy period, identifying a male parent by adopting an SSR
molecular marker after
germination and emergence,and screening a high-quality mother
plant; taking a
xanthoceras sorbifolia container sapling as a stock,
grafting a selected
single plant scion, identifying a male parent for borne seeds, and performing second-generation
grafting and male parent identification after confirming that the seeds are self-fruitful; if seeds are self-fruitful again, determining the mother
plant as a final
single plant;and taking the scion of the final
single plant, taking a 3-5-year-old xanthoceras sorbifolia
seedling as a stock, and performing
grafting and expanding propagation to obtain a self-fertile high-yieldxanthoceras sorbifolia strain. The method is simple, convenient, trouble-saving, labor-saving and easy to operate; seeding is carried out after
dormancy breaking, so that the field
seedling rate is increased, and the seed
germination and emergence speed is increased; and the problem of shortage of high-yield improved seeds of the xanthoceras sorbifolia is efficiently and rapidly solved, and the urgent need of current xanthoceras sorbifolia industry development is met.