Growth analysis of Pimpinella anisum under different irrigation regimes and amounts of super absorbent polymer
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2012, Vol 3, Issue 1
Abstract
In order to decrease the effect of water stress on anise plant (Pimpinella anisum), a factorial experiment was conducted based on randomized complete block design with four replications in 2009. Treatments were irrigation regimes (irrigation after 40, 80, 120 and 160 mm evaporation from pan class A) and super absorbent polymer (0, 60, 120, 180 and 240 kg/ha). Results of plant growth analysis indicated that the biomass (Total Dry Weight) had a slow raise till 806 Growth Degree-Days (GDDs)=55 Days after Sowing (DAS). Then a fast increase till 1392 GDDs=85 DAS for irrigation after 80, 120 and 160 mm, and 670 GDDs=100 DAS for irrigation after 40 mm evaporation. Quadratic relationship between Crop Growth Rate (CGR) and GDDs was observed in all experimental treatments. At the end of growth, after 85 days, values of CGR were come closer. Linear function obtained between Relative Growth Rate and GDDs, indicated a descending trend of during growth season. There was a respective reduction of biomass, CGR and RGR obtained from irrigation after 80, 40, 120 and 160 mm evaporation. Leaf Area Ratio (LAR) had a binomial relation with GDDs in all experimental treatments. Anise plants irrigated after 40 and 80 mm evaporation from pan obtained the highest and same values of LAR, and it was dropped in wider irrigation intervals. Despite of descending trends in Leaf Area Index (LAI) by irrigation after 80, 40, 120 and 160 mm evaporation, a few distances was observed between LAI obtained from irrigation after 80 and 40 mm evaporation. A similar change of total dry weight, CGR, RGR, LAR and LAI with super absorbent treatments was occurred as well as irrigation. A descending trend of biomass, CGR, RGR, LAR and LAI was occurred with 240, 180, 120, 60 and 0 kg/ha super absorbent.
Authors and Affiliations
Alireza Pirzad| Department of Agronomy and Plant Breeding, Faculty of Agriculture, Urmia University;Institute of Biotechnology, Urmia University, Urmia-Iran, Mina Khoshbakht| Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ramin Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ramin UniversityUniversity, Ata Allah Siadat| Department of Agronomy and Plant Breeding, Faculty of Agriculture, RaminDepartment of Agronomy and Plant Breeding, Faculty of Agriculture, Ramin University University, Ghodrat Allah Fathi| Department of Agronomy and Plant Breeding, Faculty of Agriculture, RamDepartment of Agronomy and Plant Breeding, Faculty of Agriculture, Ramin Universityin University, Abdol Mehdi Bakhshandeh| Department of Agronomy and Plant Breeding, Faculty of Agriculture, Ramin University
Keywords
Related Articles
- EP ID EP4886
- DOI -
- Views 557
- Downloads 59
Metal extraction of some native plant species in a contaminated sites of Iran
Some higher plant species develop tolerance strategies to enable surviving and reproducing in highly metal contaminated soils. In order to study the potential of metal accumulation of some native plant species, three nat...
The Statistical Investigation of Teaching and Examining Lexical Cohesion on the Ground of Iran EFL Educational Context from Theory to Practice
Linguistically, lexical cohesion uses the continuity of lexical meaning in order to explain how the meaning of a text is appointed (Halliday and Hasan, 1976). Lexical cohesion can be captured better if someone looks at i...
Monitoring and hazard landslide zonation in the Astara Aghchay slopes
Eastern slope of Talesh mountains because of their location which is near the world biggest closed water area Caspian sea , and their unique temperate subtropical climate in the Phytogeography classification is called Hy...
Poem, the vector of literature disease
The question which has been proposed around today (contemporary) poetic literature states that whether today poem can pave a way for equal interaction with the audience? Whether today poets could create needed equilibriu...
Effects of Guar meal with and without -mannanas enzyme on performance and immune response of broiler chicks
This experiment was conducted to study the effects of guar meal (0, 3, 6 and 9 %) and -mannanase enzyme (0 and 0.05 %) on performance, immune response and ileal viscosity in broiler chicks. Ross male broiler chicks (480...