Overwintering performance of six bougainvillea varieties in jianghan plain
In order to introduce the planting and cultivation of Bougainvillea spectabilis in Jianghan area, domesticate the varieties that can adapt to the climate of Jianghan plain, improve the market competitiveness of B. spectabilis and make it more widely popularized. A comparative experiment on overwintering cold resistance was carried out with six Bougainvillea varieties introduced from Yunnan, China. By comparing the freezing injury degree of B.