The seeds of domesticated plants could offer clues as to why cultivated crops are larger than their wild cousins, researchers have suggested according to BBC.
Increased size is common among domesticated plants but the reason for increased growth is little understood.
The increase in the biomass is of interest to plant breeders as it could affect productivity, such as reducing grain yields, they added.
A team of researchers investigated the traits that were responsible for the difference in size.
Comparing and contrasting various factors, such as biomass, leaf size and photosynthesis rates, the scientists were able to identify a number of characteristics that differed between domesticated plants and wild varieties.
They reported that domestication generally increased the above-ground biomass. The added that the domesticated specimens invested less in leaves and more in stems than their wild counterparts.