African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6574

Full Length Research Paper

Agronomic and morphologic analysis of Fenugreek (Trigonella foenum-graecum L.) under nitrogen fertilizer and plant density via factor analysis

  P. Zandi1*, A. H. Shirani– Rad1, J. Daneshian1 and L. Bazrkar– Khatibani2        
  1Department of Agronomy, Faculty of Agriculture, Islamic Azad University, Takestan Branch, Iran. 2Department of Agronomy and Plant Breeding, Mazandaran University, Sari, Iran.
Email: [email protected]

  •  Accepted: 31 January 2011
  •  Published: 31 March 2011

Abstract

 

In order to study agronomic and morphological traits in fenugreek (Trigonella foenum-graecumL.) under nitrogen fertilizer and plant density, a field experiment was conducted at Guilan region (North of Iran) during 2008 to 2009 using split plots based on randomized complete block design with 4 replications. Four levels of nitrogen (0, 25, 50 and 75 kg/ha) as the main factor and four levels of plant density (60, 80, 100 and 120 plants/m2) as sub-plots were investigated. The maximum seed yield (1468 kg/ha) produced by using 75 kg N/ha. The seed yield had the highest correlation with biological yield. The maximum biological yield was obtained from N4 (6336 Kg/ha) and D4 (6227 Kg/ha), respectively. Factor analysis of data after varimax rotation indicated four factors that accounted for 80.924% of total variance. The scatter plot of treatments based on the two first factors (characteristics of reproductive organ factor- height and yield factor) showed that N3Dhad the desirable seed yield and N4Dhad the desirable forage yield.

 

Key words: (Trigonella foenum-graecum L.), nitrogen fertilizer, plant density, correlation, factor analysis, scatter plot.