北京绿化带“花”样翻新火热“出圈” “一路生花”背后自主育种是关键

Core Viewpoint - The recent enhancement of Beijing's urban greening, particularly through the extensive planting of various flower species, has become a popular topic among netizens, showcasing the city's commitment to beautification and environmental improvement [1][3]. Group 1: Urban Greening Initiatives - Beijing has cultivated over 3,000 varieties of roses, with more than 30,000 acres dedicated to landscape roses, and over 300 kilometers of rose rings planted along urban ring roads [3]. - The city has introduced a diverse range of plant species, creating a seasonal visual experience characterized by "spring new colors, summer lush greens, autumn vibrant hues, and winter silver and black" [5][7]. Group 2: Flower Breeding and Innovation - The success of Beijing's urban greening is supported by advancements in domestic flower breeding, with new varieties such as compact petunias being developed to withstand local climate conditions [8][14]. - The Beijing Garden and Greening Research Institute has independently bred over 20 new varieties of the "one-string red" flower over nearly 40 years, utilizing hybridization techniques that typically require four to five years for new variety development [12][14]. - The number of independently bred flower varieties has increased by 25% compared to the previous year, with a total of 84 varieties now holding independent intellectual property rights [14].