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 605
- Downloads 59
A Clinical Applicable Optimal Control of HIV Using Discretization Scheme
Generally, to obtain a realistic optimal treatment strategy for Human Immunodeficiency Virus (HIV) infection, the amount of virus particles should be decreased and the amount of uninfected CD4+ Tcells must be increased....
Influence of Narrative therapy on adjustment rate of mentally retarded boys and girls living Esfarayen City
The aim of the present study is to survey effectiveness of Narrative therapy on consistency rate of mentally retarded children. Based on pilot project framework, 20 first-grade students (10 boys and 10 girls) with mental...
A model of external customer attitude, sales performance, retail job traits, and employee role ambiguity
This paper develop and test a model of retail employee sales performance that differs from previous attempts by taking advantage of multi-dimensional conceptual interpretationsof possible preceding as well as anencouragi...
A Novel Design for Manufacturing a Flexible Intelligent Artificial Leg
In recent years technical innovations have combined to make artificial limbs much more efficient, comfortable and lifelike than earlier versions. Future introductions are likely relates to the interaction between three p...
Scrutiny of effect and relationship of increasing the rate of trade on economic development
The main aim of this study is to establish relationship between increasing the rate of trade and economic development. In the fact, it is a priori difficult to establish relationship between increasing the rate of trade...