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GENOTYPE x ENVIRONMENT INTERACTION IN GRASS PEA (Lathyrus sativus L.) LINES


G. B. POLIGNANO, V. BISIGNANO, V. TOMASELLI P. UGGENTI, V. ALBA, DELLA GATTA

Issue:

SCSB, Volume XIV

Section:

Volume XIV - Vegetal Biology

Abstract:

Eight grass pea lines grown in three different seasons were evaluated for the stability of seed yield, 100-seeds weight, flowering time, plant height and biomass. Significant differences existed among years, lines and lines x years interaction for all traits except for 100-seeds weight. Two methods of multivariate analysis cluster and principal components were utilized to determine: firstly, whether a pattern existed among lines in their response across years and secondly to examine the relationships among them. In both analysis each lines was presented as a vector whose elements were given by the performance of lines in each year. The analyses used arranged the lines into groups that where differentiable in terms of performances and stability.

Keywords:

G x E interaction, Lathyrus sativus L, , multivariate analyses.

Code [ID]:

SCSB200814V14S02A0005 [0002446]


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