No abstract

CDC Robin is a high-yielding, red cotyledon lentil (Lens culinaris Medik.) cultivar developed by the Crop development Centre, University of Saskatchewan, Saskatoon, Saskatchewan. It has brown seed coat colour suitable for the small red market class of lentil. It is intended for cultivation in all lentil-growing areas of western Canada. CDC Robin was issued registration #4990 on 4 October 1999 by the Variety Section, Plant Health and Plant Products Division, Canadian Food Inspection Agency. Key words: Lentil, cultivar description, Lens culinaris

CDC Milestone is a high-yielding, yellow cotyledon lentil (Lens culinaris Medik.) cultivar developed by the Crop Development Centre, Saskatoon, Saskatchewan. It is intended for cultivation in all lentil production areas of western Canada. CDC Milestone was evaluated for yield, resistance to ascochyta blight (Ascochyta lentis Vassilievsky) and agronomic performance as breeding line 512-2 in the Lentil Co-operative Yield Trials in 1995 and 1996. It has small seeds with pale green seed coat and is acceptable in the small green market class of lentil. CDC Milestone was granted official registration (#4836) as a cultivar in Canada by the Variety Section, Plant Health and Plant Products Division, Canadian Food Inspection Agency on 8 December 1998. Key words: Lentil, cultivar description, Lens culinaris

CDC Glamis is a high-yielding, yellow cotyledon lentil (Lens culinaris Medik.) cultivar developed by the Crop Development Centre, University of Saskatchewan. It is intended for cultivation in all lentil production areas of western Canada. It has large seeds with green seed coat and is suitable for the large green market class of lentil. CDC Glamis wa s issued registration #4835 on 8 December 1998 by the Variety Section, Plant Health and Plant Products Division, Canadian Food Inspection Agency. Key words: Lentil, cultivar description, Lens culinaris

Competition for scarce water resources and the continued effects of global warming exacerbate current constraints on potato crop production. While plants’ response to drought in above-ground tissues has been well documented, the regulatory cascades and subsequent nutritive changes in developing tubers have been largely unexplored. Using the commercial Canadian cultivar “Vigor”, plants were subjected to a gradual drought treatment under high tunnels causing a 4 °C increase in the canopy temperature. Tubers were sampled for RNAseq and metabolite analysis. Approximately 2600 genes and 3898 transcripts were differentially expressed by at least 4-fold in drought-stressed potato tubers, with 75% and 69% being down-regulated, respectively. A further 229 small RNAs were implicated in gene regulation during drought. Expression of several small RNA clusters negatively correlated with expression of their six target patatin genes, suggesting involvement in the regulation of storage proteins during drought. The comparison of protein homologues between Solanum tuberosum L. and Arabidopsis thaliana L. indicated that down-regulated genes were associated with phenylpropanoid and carotenoid biosynthesis. As is indicative of reduced flow through the phenylpropanoid pathway, phenylalanine accumulated in drought-stressed tubers. This suggests that there may be nutritive implications to drought stress occurring during the potato tuber bulking phase in sensitive cultivars.