Variability in grain protein concentration of peas and lentils grown in Australia

Abstract

Protein and yield data were obtained from South Australian and Interstate pea and lentil variety trials conducted between 1986 and 1989, covering 94 pea and 58 lentil genotypes. Crude protein concentration varied significantly across sites and averaged 25.0% in peas and 24.4% in lentils. Protein concentration was not significantly correlated with yield at most individual sites. Minimum protein concentration in peas was 1.6% below the mean of three check cultivars in line RA155, while the maximum was 2.3% above that mean in lines P255-2 and P262-1. In lentils the range was 1.2% above the check mean in ILL5562 and 1.0% below in ILL6017. A further lentil genotype, 'Chilean', was 6.0% above controls, but was inadequately replicated in these trials. Genotypic variation in pea and lentil protein concentration was lower than in many other species, but the lack of correlation between protein and yield suggests that independent selection of both characters during breeding is possible and should be successful without the rate of gain in one trait being reduced by that in the other.

Nutritive quality and protein production from grain legumes in a boreal climate

“…The negative correlation found between yield and protein concentration in faba bean and lentil agrees with reported similar trends in pea and lentil . In contrast, narrow‐leafed lupin had a unique positive correlation for these parameters owing to the high protein content of the high‐yielding, late‐maturing cultivars.…”

“…As suggested in previous studies on pea and lentil, 38 it is clear from our screening trial that protein concentration in all three species depended more on cultivar than on environment. Part of this stability is attributable to biological nitrogen fixation capacity, which allows the plants to maintain their nitrogen uptake regardless of variation in soil nitrogen supply.…”

“…37 The negative correlation found between yield and protein concentration in faba bean and lentil agrees with reported similar trends in pea and lentil. 38 In contrast, narrow-leafed lupin had a unique positive correlation for these parameters owing to the high protein content of the high-yielding, late-maturing cultivars. Our experiments also indicated a significant cultivar effect on the protein yield of faba bean and narrow-leafed lupin but not for lentil, probably because of the relatively low genetic diversity in the lentil collection, all but one of which were from the same breeding program.…”

Allelopathic Influence of Sunflower (Helianthus annuus) on Germination and Seedling Growth of Linseed (Linum usititatissimum)

“…The increase or decrease in the protein contents is due to the activity of Allelochemicals. These findings are in close confirmatory to the studies reported earlier, in which minimum and maximum protein were 1.6 and 2.3% in peas (Stoddard et al, 1993). It is also reported in Table 1 that potassium contents increased from 25 to 75% concentrations as compared to control, while 100% showed a decrease in potassium content.…”

Evaluation of yield, yield stability, and yield–protein relationship in 17 commercial faba bean cultivars

“…Although it has earlier been reported that many legume crops such as pea and chickpea show a negative correlation between seed yield and protein content of seeds, others have shown an absence of correlation attributed to their capacity for biological nitrogen fixation (Frimpong et al, 2009;Jha, Arganosa, Tar'an, Diederichsen, & Warkentin, 2012;Stoddard, Marshall, & Ali, 1993). Many studies in faba bean have reported a similar absence of correlation (Picard, 1977;El-Sherbeeny & Robertson, 1992).…”