Articles
STUDIES ON POPULATION-ENVIRONMENT RELATIONS IN BRASSICA SPP. WITH SPECIAL REFERENCE TO PHOTOPERIODIC CONDITIONS
Article number
459_11
Pages
113 – 122
Language
Abstract
The analysis of growing form and some quantitative characters within varietal populations of various Brassica crops under marginal photoperiodic conditions (analyzing environments) shows significant variation in biotype developmental rhythms.
Some of the genotype by environment interactions within various biotypes can be ascribed to the differences in the length of juvenile phase, critical daylength and civil twilight sensitivity.
These important determinants of photoperiodic response must be taken into consideration for crop timing, breeding program design and population screening.
Selection pressure erodes population diversity; choosing appropriate sites (stabilizing environment) is important for germ plasm conservation.
Some of the genotype by environment interactions within various biotypes can be ascribed to the differences in the length of juvenile phase, critical daylength and civil twilight sensitivity.
These important determinants of photoperiodic response must be taken into consideration for crop timing, breeding program design and population screening.
Selection pressure erodes population diversity; choosing appropriate sites (stabilizing environment) is important for germ plasm conservation.
Authors
I.G. Tarakanov
Keywords
photoperiodic response, adaptation, population, screening, breeding techniques
Online Articles (53)