Gn. Alkaraki et Ki. Ereifej, CHEMICAL-COMPOSITION OF PEA-SEEDS AS RELATED TO SEED YIELD UNDER ARIDAND SEMIARID MEDITERRANEAN ENVIRONMENTS, Journal of agronomy and crop science, 178(2), 1997, pp. 97-102
Little has been published on the chemical composition of pea (Pisum sa
tivum L.) seeds and its relationship to seed yield. This study was con
ducted to investigate the relationships between seed protein, lipid, s
tarch and sugars content of pea with seed yield under arid and semiari
d Mediterranean environments. Twenty pea genotypes were grown at an ar
id (JUST) and semiarid (Maru) locations in northern Jordan. With the e
xception of glucose and fructose, the variation in protein, lipid, suc
rose and starch was caused by environmental conditions. Pea grown at t
he semiarid location exhibited higher yield and the lower protein, glu
cose, fructose and sucrose contents than those grown at the arid locat
ion. Except for lipid and starch, high seed yields of genotypes were a
ssociated with low contents of protein and sugars, indicating that one
-sided selection for high seed yield tends to reduce the nutritional q
uality of pea seed.