Yield and morphological traits in alfalfa varieties of different origin

DOI: 10.5958/0976-0571.2015.00128.9    | Article Id: LR-227 | Page : 434-441
Citation :- Yield and morphological traits in alfalfa varieties of different origin.Legume Research-An International Journal.2015.(38):434-441
Ratibor Strbanovic, Aleksandar Simic, Dobrivoj Postic, Tomislav Zivanovic, Savo Vuckovic, Erika Pfaf-Dolovac and Rade Stanisavljevic alsimic@agrif.bg.ac.rs
Address : Institute for Plant Protection and Environment, 11040 Belgrade, Teodora Drajzera 9, Serbia.

Abstract

The study was conducted to examine variability of green forage yield (GFY) and morphological traits (tiller length, internodes length, internodes-stem diameter, leaf width and length) in nine alfalfa varieties from USA and six varieties from Europe. The trials were carried out in Central Serbia during the second (2006-A1) and third year (2007-A2) of alfalfa exploitation. In unfavourable environmental conditions (A1), varieties from the USA had higher coefficient of variability (CV, %) in all cuttings (I CV=16.93, II CV=17.13, III CV=13.00, IV CV=21.29), as well as total yield variability (CV=14.33), compared to varieties from Europe (I CV=7.45, II CV=6.47, III CV=10.65, IV CV=19.51, for total yield CV=6.43). In the favourable agro-ecological conditions (A2) genetic potential of varieties was manifested, which caused similar yield variability. Variety origin (USA or Europe) had a low effect on variability of the morphological traits. The highest correlation (P £ 0.001) was achieved between yield and tiller length, regardless of variety origin.

Keywords

Alfalfa Morphological traits Variability Variety origin Yield.

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