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华南地区7个暖季型草坪草种的抗旱性与灌溉节水的初步研究 被引量:9

Preliminary study on drought resistance and water-saving irrigation of 7 warm-season turfgrasses in south China
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摘要 选取华南地区的主栽草种和经筛选驯化本土野生草共7个暖季型草坪草种进行抗旱性与灌溉周期田间试验,采用株体萎蔫生物学鉴定法结合生化测定,对草坪质量、草种的抗旱性及其与节水关系进行评价,按抗旱性强弱显著度和灌溉周期长短顺序划分3个级别:A级狗牙根Cynodon dactylon5号、1号、4号;B级兰引3号Zoysia japonica cv.Lanyin 3、细叶结缕草Z.tenuifolia和假俭草Eremochloa ophiuroides;C级地毯草Axonopus compressus;且A级比C级灌溉节水约2/3,A级比B级、B级比C级节水1/2。 Seven warm-season turfgrasses (cultivated or domesticated) were used to lest their drought resistance and irrigation interval in south China. The turf quality, drought resistance of turfgrasses and its relationship with the performance of water saving irrigation were assayed. The result indicated that 7 turfgrasses could he classified into 3 grades based on the drought resistance and the length of irrigation interval. Cynodon dactylon No. 5, C. dactylon No. 1 and C. dactylon No. 1 were in Grade A; Zoysia ja ponica cv. Lanyin 3, Z. tenui folia and Eremochloa ophiuroides were in Grade B; Axonopus compressus was in Grade C. Turfgrasses in Grade A saved two third of irrigating water compared with those in Grade C; Those in Grade A saved one half of irrigating water compared with Grade B and same result was found between Grade B and Grade C.
出处 《草业科学》 CAS CSCD 2008年第11期120-124,共5页 Pratacultural Science
基金 国家农业科技成果转化项目"紫花苜蓿高产栽培与草品应用技术组装与示范" 河南省重大科技攻关项目"名优牧草的引进 区划及产业化开发"(0422010300)
关键词 暖季型草坪草 灌溉周期 草坪质量 抗旱性与节水 warm-season turfgrass irrigation interval turf quality drought resistance and water saving
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