The effect of watering durations on soil seed bank diversity (case study: Vaz region)

Document Type : Research

Authors

1 Masters student of Tarbiat Modares University

2 Associate Professor of Tarbiat Modares University

3 Assistant Professor of Tarbiat Modares University

Abstract

Effect of different watering durations on soil seed bank diversity and frequency was investigated. The study was conducted in Vaz rangelands of Mazandaran province. Soil samples were collected ّin 40 1 m 2 plots from two different depths (0-5 and 5-10 cm) through randomized-systematic method in December 2010. Watering treatments were carried out in equal volume of water in different time interval  including: one day, two days, four days and a week. The data were statistically analyzed by the SPSS software program. The differences between the means was compared using Duncan test (P<0.05) and GLM. Results showed significant differences between the treatments watering duration on diversity of soil seed bank (P<0.05). The treatment level each day showed the lowest on soil seed bank diversity/m2. The treatments levels each four days and a week showed the maximum of therophytes on soil seed bank frequency.

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