Yield and tenderometer reading relationships for smooth- and wrinkled-seeded processing pea cultivars

An analysis was made of the relationship between yield and tenderometer rea dings of smooth-and wrinkled-seeded types of pea (Pisum sativum L.) cultiva rs. The analysis involved 13 smooth-seeded cultivars and 31 wrinkled-seeded cultivars in 16 cultivar trials that were carried out at two locations dur ing five seasons with varying sowing periods. The results showed that for t he two types of cultivars a distinction could be made in the relationship b etween yield and tenderometer readings in the relevant range for processing (90-150). At tenderometer readings lower than 120 the relative yield of wr inkled-seeded cultivars is higher than that of the smooth-seeded types, whi le at tenderometer readings above 120, the relative yield is lower. Consequ ences for a sliding price scale are indicated. (C) 2000 Elsevier Science B. V. All rights reserved.