| abstract |
The invention provides a method for early identification of male and female sex of poplar hybrid progeny, belonging to the technical field of early identification of male and female sex of forest trees, including the steps of drought stress, plant body management, spraying hormone, low temperature treatment and the like. Through comprehensive measures such as drought stress, plant body management, hormone spraying, low temperature treatment and the like, the invention promotes rapid flower bud differentiation of a single plant of poplar hybrid progeny. It can be used for the evaluation of excellent germplasm in poplar hybrid breeding and the screening of excellent varieties, which can greatly shorten the breeding cycle of non-flying poplar varieties and improve the breeding efficiency. At the same time, this method also has important reference significance for the identification of male and female of other tree species. |