ON THE SELECTION OF RAPE SEED. 453 



SORT HAMBURG. 





•2 



0 



S 'J 



•3 3 

 0 - 



Height of 



(average ol 

 12 plants.] 



Breadth of 



(average of 

 12 plants.) 



Weight 



of 

 plants. 



Dry matter 

 of 

 plants. 



Original sample, 



98% 



12.930 bu. 



1.15s bu. 



— 



1.970 mg. 



Seeds of sp. 



gi". 1. 1 25 & more. 



93% 



14-135 



1.000 





1.900 



ij )» 



1.105 — '-085 



97% 



16.515 



1.290 





2.568 





1.065 — '-045 



95% 



15-770 



1.400 



- 



2-455 





1 .025 & less. 



97% 



14.080 



1-350 





2.130 







SORT 



COEZA. 











Germination 

 jirecentage. 



Height of 



plants 

 (average of 

 12 plants.) 



Breadth of 



Icjivcs 

 (average of 

 12 plants.) 



Weight 



of 

 plants. 



Dry matter 

 of 

 plants. 



Original sample. 



89% 



10.300 bu. 



I.I 10 bu. 



27.75 mg 



1.470 mg- 



Seeds of sp. 



gr. 1. 1 25 & more. 



96% 



11.400 



1.480 



31-25 



1-340 



>j J) 



1. 105 — 1.085 



99% 



12.700 



1.130 



38-33 



1.630 



ft )> 



1.063— 1.045 



97% 



U.400 



i.oSo 



31-30 



1.980 



*> 



1.025 & less. 



99% 



11.430 



I.OIO 





1-530 



The above table shows that the seedlings from seeds of medium 

 specific gravity, which are heavy and regular in shape, generally 

 gave superior results as regards their height and the breadth of 

 their leaves, as well as their weights and their dry matter. 

 Marck's results show that seeds of different size, do not differ in 

 their germination percentage and energy but that the seedlings 

 from large seeds have always longer leaves and stalks and are 

 heavier than the seedlings obtained from small seeds. These 

 results and those obtained by me prove that heavy seeds are always 

 superior. 



b.) Relation of tlie Absolute Weight of Seed to its 

 Germination. 



