Managing Global Resources for a Secure Future

Lentil cultivars with high content and stable productivity of resistant starch are preferred by the food processing industry to use as an ingredient for improved health benefits of their products. Seeds of eight newly released red lentil cultivars; CDC Dazil, CDC KR1, CDC Maxim, CDC Rosie, CDC Scarlet, CDC Redmoon, CDC Proclaim and IBC 719, grown in 11 growing environments, were analyzed for total starch (TS), amylose (AM) and resistant starch (RS) contents. Variance component analysis indicated that lentil cultivar (G) accounted 8.8%, 2.1% and 35.6%; growing environment (E) accounted 59.7%, 23.4% and 34.5% and the G x E interaction accounted 17.1%, 43.5% and 24.7% of the total variations for TS, AM and RS contents, respectively. Dazil, KR1, Maxim and Proclaim were the most stable cultivars with high starch content, whereas Redmoon, Proclaim and IBC 719 were the most stable lentil cultivars with high AM content. On average, Rosie and Scarlet were the highest RS producing cultivars, but their stability was lower than other cultivars. Significant G x E for AM and RS content of these cultivars suggests the importance of understanding the genetic influence on starch composition of lentil seed.