Hybridization method for vigna radiata

The invention discloses a hybridization method for vigna radiata. The method comprises the following steps: (S1) preparing tools used during hybridization, including boxes used during the collection of carina, forceps used during detasseling pollination and plastic marking plates for marking time and paternal and maternal plants after detasseling pollination; (S2) carrying out layout on a hybridization garden: carrying out strain selection on vigna radiata seedlings, dividing the vigna radiata seedlings into paternal plants and maternal plants, taking the paternal plants and the maternal plants as group, separately planting the paternal plants and the maternal plants by rows, and carrying out indicating by using the plastic marking plates for distinguishing, wherein the row spacing of the paternal plants and the maternal plants is 0.5m to 0.6m, the planting distance is 0.20m to 0.25m, and the distance among groups is 1.0m to 1.2m; and (S3) carrying out detasseling: selecting plant flower buds, which are about