Effect of Hydrogel, Paclobutrazol and Irrigation Intervals on Qualitative Characteristics of Turf grass (Lolium perenne cv. Barbal) in Mashhad Climate

Document Type : Research Article

Authors

• M. Aalami
• .A Tehranifar
• Gholam Hossein Davarynejad
• yahya selahvarzi

Ferdowsi university of Mashhad

10.22067/jhorts4.v1390i0.11335

Abstract

Abstract
Turf grass as a main grown cover plant has a unique place in green space planning. In order to study the effect of hydrogel and paclobutrazol on water requirement of turfgrasse (Lolium perenne L. Barbal) a factorial experiment based on a BRCD with 3 replication was conducted in the summer of 2010 in Mashhad. The factors under study were 4 levels of hydrogel (0, 3, 6, 9 gr/kg soil), 3 levels of irrigation (2day, 4day, 6day intervals) , 2 levels of paclobutrazol (control and preplanting seed treated, with 30mg/lit) on Lolium perenne. Results showed that the best density obtained using 6 g hydrogel and irrigation intervals of 2 days. The turf quality in soils with hydrogel application was better than the control. In general, the results showed that the plot with hydrogel had 33, 44 and 48% higher value in traits of color, density and chlorophyll content, respectively. Also the plot treated with paclobutrazol as compared with the control had 2, 7.5 and 11% more value in traits of density, cutting weight and root dry weight respectively. It is concluded that using 6 gr/kg hydrogel and paclobutrazol in soils with similar texture could reduce water consumption.

Keywords: Chlorophyll, Irrigation interal, Density, Electrolyte leakage

20.1001.1.20084730.1390.25.3.6.0

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