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Abstract Detail

Physiological Section

Riaz, Atif [1], Nawaz, Khalid [2], Younis, Adnan [3], Raza, Atiq [4].

Role of Potassium in inducing cold tolerance in turfgrasses.

Among the grasses, Bermuda grass varieties are widely grown for turfs etc., all over the world including Pakistan due to their greenish and fine look, smoothness, good visual balance and speedy growth. But, with the start of winter, burning of leaves and brown patches deteriorate their aesthetic value which reduces the quality and economic value of grasses. Turf fertilization contributes greatly to turf colour, density, uniformity and growth rate. In addition, properly fertilized turf is better able to recover readily from the damage caused by environmental and biotic stresses, more than the turf that is improperly fertilized. Present study was conducted to evaluate the effect of different doses of K application (5,10 and 15g/25m2) on different cultivars of Bermuda grass under Faisalabad conditions in Pakistan. Plugs of three cultivars of Bermuda grass including Tifdwarf, Tifway (C. transvaalensis X C. dactylon) and Fine Dacca were used. The experiment was laid out in Randomized Complete Block Design with factorial arrangement giving equal importance to both factors replicated thrice. Tiller height, number of tillers, stolon diameter, number of leaves, internodal distance, fresh shoot weight, dry shoot weight and visual quality of turf grass along with potassium and chlorophyll contents were studied to determine the quality of turf grasses. Observations on various parameters were recorded using standard procedures. Data were analyzed statistically using method described by Steel and Torrie (1984). Over all effects of K doses showed that 15 g/m2 was better than the other two doses (5 g/m2 and 10 g/m2) even at low temperatures while, among the varieties, Fine Dacca proved better than the other two varieties (Tifway and Tifdwarf) with the same dose of K+ at low temperature.

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1 - University of Agriculture, Horiculture, Institute of Horti. Sci., Faisalabad, 38000, Pakistan
2 - Institute of Horticultural Sciences,, Horticulture,, Institute of Horticultural Sciences, University of Africulture,, Faisalabad, 38000, Pakistan
3 - University of Minnesota, Horticultural Sciences, 286 Alderman Hall, 1970 Folwell Ave, St Paul, Minnesota, 55108, USA
4 - Institute of Horticultural Sciences,, Institute of Horticultural Sciences, University of Agriculture, Faisalabad,, 38000, Pakistan

freezing tolerance.

Presentation Type: Oral Paper:Papers for Sections
Session: 38
Location: 101/Law
Date: Tuesday, July 29th, 2008
Time: 10:15 AM
Number: 38003
Abstract ID:212

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