CDC Grandora

Thursday, 01 October 2009 11:53

CDC Grandora is a high-yielding, yellow cotyledon lentil cultivar developed by the Crop Development Centre, University of Saskatchewan, Saskatoon, Saskatchewan. It has large seeds with green seed coat and is suitable for the large green market class of lentil. CDC Grandora is intended for cultivation in all lentil-growing areas of western Canada. CDC Grandora was released to Saskatchewan Select growers through the SPG Variety Release Program in 1999 after Breeder seed multiplication. CDC Grandora was developed from an F2-derived family originating from the cross FRV-5/458-248//LSG, made in 1992. Line FRV-5 is an F5 breeding line derived from a cross between Laird and common French green lentil. Laird is the commercial standard for large green lentil in western Canada (Slinkard and Bhatty 1979). Common French green lentil is a landrace imported from France to Canada in the 1980s. Line 458-248 was derived from the cross Indianhead Ч Eston. Indianhead is a small-seeded lentil cultivar with black seed coat colour. LSG is large-seeded selection from a commercial green lentil sample from Spain. F2-derived F3 progeny plots of Cross 652 were screened for ascochyta blight reaction in an irrigated nursery in 1994. One of these was selected as Line 652. Replicated yield trials of F2-derived F5 lines began in 1995. Line 652 was tested in replicated trials at four locations in 1996 and then entered in registration trials in 1997. Breeder seed was bulked from 41 single plant progeny plots of Line 652 in 1998. CDC Grandora was evaluated for seed yield, resistance to ascochyta blight. CDC Grandora has yellow cotyledons similar to Laird. Seed coat colour is light green, similar to that of Laird. CDC Grandora is resistant to ascochyta blight but is susceptible to anthracnose caused by Colletotrichum truncatum CDC Grandora flowers and matures at the same time as Laird. Plant height is similar to Laird. Seed weight is 69 mg about 2 mg greater than that of Laird. •    Yield: 1709 kg ha–1 •    Plant height: 44 cm •    Days to maturity: 56 •    Days to flower: 91 •    Seed weigth: 91 g 1000–1 Go to table of lentil varieties