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为筛选出适应我国北方气候的狗牙根品种,本试验对美国5个狗牙根品种进行了引种适应性研究,评价指标包括:生育期、密度、色泽、质地、均一性和草屑积累总量等。结果表明:供试狗牙根品种可以在保定地区越冬,但绿期长短差异较大,‘Yukon’绿期最长,达到193 d,‘SR 9554’和‘LaPaloma’绿期最短,仅为145 d。品种‘Yukon’在夏季能形成优美的草坪质量,生长速度适中,而且具有较强的抗病性。
In order to select the bermudagrass varieties that adapt to the climate in the north of our country, this study introduced the adaptability of five bermudagrass varieties in the United States. The evaluation indexes include: growth period, density, color, texture, homogeneity and total amount of grass cuttings accumulation . The results showed that the test bermudagrass could win the winter in Baoding area, but the difference of green period was quite big. The longest green period of ’Yukon’ was 193 days, and the shortest green period of ’SR 9554’ and ’LaPaloma’ was only 145 days . The variety ’Yukon’ can form beautiful lawn quality in the summer, with moderate growth rate and strong resistance.