Adaptive properties and selection value of lines and varieties of spring forage pea (Pisum sativum L.)

Valentin Kosev

Abstract: Adaptive properties of lines and varieties of spring forage pea are studied on main quantitative traits. Genotypes with high general and specific adaptive ability, relative stability and selection value in different directions of use are identified. Lines №8 and №11 are characterized by a high general adaptive ability and relative stability of plant height (22.56-24.22, 9.99-10.21) and height of the first pod (2.26-3.18, 3.81-5.33), suggesting their future
testing in direction for green biomass. Kerpo and Crystal varieties are distinguished by a high selection value of number of seeds (15.05, 16.85) and number of pods per plant (5.05, 4.62) and they can be used as parent components
in combinational selection to create varieties with increased number of seeds and pods per plant. Line №29 is of interest to adaptive selection as it combines high grain productivity (4.09 g) with good variability (47.25) and relative stress resistance (-0.87).

Keywords: adaptive ability; forage pea; productivity potential; yield components

Date published: 2018-07-12