Plant stress is a major limitation to crop yield. The amelioration of crop environments is
either impossible or costly. The breeding of crop varieties resistant to environmental stress is …

This publication opens with the inevitable introduction, moves on to the present traditional
approach to breeding for yield stability, and then enumerates a detailed discussion of the …

Low temperature represents, together with drought and salt stress, one of the most important
environmental constraints limiting the pro ductivity and the distribution of plants on the Earth …

Low temperatures reduce the biosynthetic activity of plants; they evoke disturbance in vital
functions and productivity and they may inflict permanent injuries that finally bring about …

Clonal ramets of 12 contrasting genotypes of Lolium perenne L. were grown in sand or soil-
based compost and maintained under well-watered conditions at 20/15° C or acclimated to …

Assessments of freezing tolerance, estimated in terms of temperature at which 50% mortality
occurs (= LT 50), were obtained for 86 Lolium perenne accessions using a glycol bath test …

Many winter stresses affect the ability of a perennial grass to overwinter in cold, temperate
climates. Freezing tolerance is one of the major component traits affecting winterhardiness …

Recent advances in the cytogenetics of the Lolium–Festuca complex provide new
opportunities for understanding and manipulating complex physiological mechanisms such …

Two contrasting cultivars of Lolium perenne were exposed to a range of daily radiation
integrals during hardening at 2° C for 15 d. The maximum induced freezing tolerance …

Winter hardiness is a quantitative trait and the lack of it limits geographic distribution of
ryegrass. Improving winter hardiness is an important breeding goal in ryegrass breeding …