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Saud, S.; Yajun Chen; Long BaoWen; Fahad, S.; Sadiq, A.
Author Affiliation :
Department of Horticulture, Northeast Agriculture University, Harbin, China.
International Journal of Agricultural Science and Research (IJASR)
The research studies the different impact on the growth of cool season truf grass under the various conditions on salinity and drought stress. and was conducted in a greenhouse at northeast agriculture university in china department of horticulture during 2012-2013 using hydroponics system, to impact on the growth responses of three cool-season turf grass species, Kentucky bluegrass (poapratensis L.), Rough bluegrass (Poatrivialis), and Perennial ryegrass (Loliumsperenne) in terms of shootlength and root lengths and dry matter (DM), and percent canopy green cover (%CGC) under salinity and drought stresses. All these turf grasses were grown in Hoagland solution for 80 days prior to initiation of salinity or drought stresses. Then, 22 meqNaCl/L culture solutions per day were added for each -0.1 MPa OP of salinity stress, or 70 and 115 g of PEG/L were added for -0.2 and -0.4 MPa OP of drought stress treatments, individually. The treatments included control, -0.2 and -0.4 MPa OP salinity, -0.2 and -0.4 MPa OP drought stress. Four replications of each treatment were used in a randomized complete block design experiment. During the stress period, grass shoots were clipped weekly for dry matter production, shoot and root lengths were measured and percent canopy green cover was calculated. The weekly clippings and the roots at the last harvest were oven dried at 50°C and dry matter weights were recorded. All 3 grass species were more severely affected by drought than salinity. Bluegrass was the most and bentgrass the least rigorously affected by either drought or salinity stress.
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Transstellar Journal Publications and Research Consultancy Private Limited (TJPRC)
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Indexing terms for this abstract:
canopy, drought, growth, lawns and turf, salinity, sodium chloride, water stress
lawns and sports turf, leaf canopy, NaCl