滚压对四川野生狗牙根生物学和生理学特征的影响

选取前期试验中筛选的坪用价值优异的狗牙根野生资源为研究材料,采用二因素裂区试验小区建坪,模拟足球场草坪的运动受力进行滚压处理,研究不同滚压强度对野生狗牙根的影响及不同材料间表现的差异.试验结果表明:不同滚压处理对狗牙根草坪的盖度、地上生物量、分蘖数、单位面积粗纤维、叶绿素和可溶性糖含量都存在不同程度的影响作用.不同材料之间也存在差异:生物学特征方面:嘉陵江流域的J7的草坪盖度和分蘖数均高于对照Jackpot,岷江流域的M28、M22两份材料次之,青衣江流域的Q10表现最差;生理学特征方面:单位面积的粗纤维、叶绿素、可溶性糖含量均是J7表现最好,其含量均高于对照Jackpot,其次是M22和M28,Q10最低.

Effects of Roll Treatment on Morphology and Physiological of Native Bermudagrass in Sichuan

Four native bermudagrasses and one hybrid bermudagrass cultivar Jackpot as check were evaluated under no roll stress,light roll stress and severe roll stress provided by a specific roller with nails in the field.Study the effects of different roll treatment,and the difference within cuhivars by the split plot design for two factors.The results showed that significant differences exist in coverage,biomass,tillers,content of corses fiber,chlorophyll a b and soluble suger based on the area under different roll treatment,also differences exist among the different materials:in biological traits that J7 from Jialin River Area behaved better than Jakpot in coverage and tillers,but less biomass.M22 and M28 from Min River Area were followed,but Q10 from Qingyi River Area behaved the least;in morphological traits that J7 behaved best at corses fiber,chlorophyll a b and soluble suger based on the area,then followed by M22 and M28,and Q10 was least.