5. Green seedlings grown from yellow seeds seemed to be significantly taller at the end of 21 days than green seedlings grown from white seeds in same progeny. There was also a corresponding weight difference, perhaps even more significant.

 

481‑13

 

326 green from yellow seeds

 

 

 

Mean height = 31.8 cm

s

= 3.6 cm

 

S.E.M

= 0.2 "

 

 

100 green from white seeds

 

 

 

Mean height = 30.0 cm

s

= 3.0 cm

 

S.E.M

= O.3 "

 

 

S.E. of Mean difference

 

= 0.36 cm

 

 

Difference

=

1.8

= 5

 

S.E.

 

0.36

 

 

Other progenies need to be measured in order to make sure of this relation. Could the carotene in yellow seeds have a significant effect on growth rate of seedlings? Or are the growth genes in 481 linked with yellow endosperm? Measurements on weight of yellow seeds and white seeds in same progeny show no difference.