56 



CROSSBREEDING CORN. 



Table XVI. — Yield record of 11 varieties of corn and their crossed progeny tested at 



Statesboro, Ga. — Continued. 



RoDGEES White Dent 9 X Rodgers White Dent <?.' 



Seed 

 ear 

 No. 



Num- 

 ber 

 of 

 perfect 



hills. 



Kind of product. 



/Ears.. 

 tStalks, 

 /Ears.. 

 \Stalks 

 (Ears.. 

 \S talks, 

 /Ears.. 

 \Stalks, 

 /Ears.. 

 \Stalks. 

 /Ears.. 

 IStalks. 

 /Ears.. 

 IStalks. 

 /Ears.. 

 \Stalks. 

 /Ears.. 

 \Stalks. 

 /Ears.. 

 IStalks. 



Weight of product (pounds). 



Total. 



Per stalk. 



Origi- 

 nal. 



7.00 

 11.25 

 13.25 

 21.25 



7.25 

 11.00 

 13.25 

 21.00 

 12.50 

 19.75 

 10.75 

 17.50 



8.25 

 13.50 

 13.50 

 21.25 



7.50 

 11.50 

 10.00 

 15.50 



Cross. 



5.25 



8.25 

 11.25 

 17.00 



6.75 

 10.75 

 13.50 

 22.00 



9.75 

 16.00 



9.75 

 14.50 



8.25 

 12.75 

 10.50 

 15.25 



8.25 

 13.25 

 11.50 

 18.25 



Origi- 

 nal. 



0.64 

 1.02 

 .58 

 .92 

 .52 

 .79 

 .60 

 .95 

 .57 

 .90 

 .49 

 .80 

 .52 

 .84 

 .68 

 1.06 

 .47 

 .72 

 .50 

 .78 



Cross. 



0.48 

 .75 

 .49 

 .74 

 .48 

 .77 

 .61 



1.00 

 .44 

 .73 

 .44 

 .66 

 .52 

 .80 

 .53 

 .76 

 .52 



.a3 



..58 

 .91 



Difler- 

 ence. 



-0.16 



- .27 



- .09 



- .18 



- .04 



- .02 

 .01 

 .05 



- .13 



- .17 



- .05 



- .14 

 .00 



- .04 



- .15 



- .30 

 .05 

 .11 

 .08 

 .13 



Per 

 cent 

 of 

 differ- 

 ence. 



-25 

 -27 

 -15 

 -20 



- 7 



- 2 

 2 

 5 



-22 

 -19 



- 9 

 -17 







- 6 

 -22 

 -28 



10 

 15 

 15 

 18 



Number of ears 

 produced. 



Origi- 

 nal. 



13 



28 



31 

 '28' 



22 



"ie 



20 



'is' 



'22' 



Cross. 



11 

 "25 



"u 



"28 

 '25 

 '22 



'is 

 '2i 

 "ie 

 '2i 



Sanders Prolific 9 X Marlboro Prolific <?.* 



/Ears.. 

 \StaIks 

 /Ears.. 

 \Stalks 

 /Ears.. 

 \Stalks 

 /Ears.. 

 \Stalks 



!Ears.. 

 Stalks 

 Ears . . 

 Stalks 

 /Ears.. 

 IStalks, 

 /Ears.. 

 \Stalks, 

 /Ears.. 

 \Stalks. 

 /Ears.. 

 Istalks. 



6.75 

 12.75 

 10.25 

 15. 75 



8.00 

 12.00 



8.25 

 13.75 

 11.25 

 19. 50 



7.00 

 13.00 



9.75 

 15.00 

 12.00 

 20.00 



4.00 



7.25 

 11.00 

 17.00 



6.00 

 10.25 

 13.25 

 23.75 



9.00 

 13.50 



8.25 

 13.50 

 11.50 

 17.75 



7.25 

 12.25 

 11.50 

 17.50 

 10.50 

 20.00 



4.25 



6.50 

 10.00 

 15.50 



0.61 



1.16 

 .49 

 . 75 

 .67 



1.00 

 .52 

 .86 

 .59 



1.03 

 .54 



1.00 

 .57 

 .88 

 .55 

 .91 

 .57 



1.04 

 .01 

 .94 



0.55 

 .93 



.63 

 1.13 

 . 75 

 1.13 

 .52 

 .84 

 .61 

 .93 

 .56 

 .94 

 .68 

 1.03 

 .48 

 .91 

 .61 

 .93 

 .56 

 .86 



-0.06 



- .23 

 .14 

 .38 

 .08 

 .13 

 .00 



- .02 

 .02 



- .10 

 .02 



- .06 

 .11 

 .15 



- .07 

 .00 

 .04 



- .11 



- .05 



- .08 



-11 

 -20 

 29 

 51 

 13 

 13 

 



- 2 

 2 



- 9 

 4 



- 6 

 18 

 17 



-13 

 

 6 



-10 



- 9 



- 9 



12 



21 



17 

 '25 



14 

 '21' 



25 

 "7' 

 '26' 



14 

 '27 



17 

 'i7 

 '25 



"is 



'23 



"22 

 "9 



'2i 



1 Favoring the cross: Ears, 3 out of 10: stalk.s, 3 out of 10. Average weight of ears per stalk produced 

 by the female parent , 0.56 pound; by the cross, 0.51 pound. Average weight of stover per stalk produced 

 by female parent, 0.88 pound; by the cross, 0.80 pound. Increased yield of cro.=;s over the female parent: 

 Grain, —8 per cent; stover, —9 per cent. 



3 Favoring the cross: Ears, 6 out of 10; stalks, 3 out of 10. Average weight of ears per stalk produced 

 by the female parent, 0.57 pound; by the cross, 0.59 pound. Average weight of stover per stalk produced 

 by female parent, 0.94 pound; by the cross, 0.96 pound. Increased yield of cross over the femafe parent: 

 Grain, 4 per cent; stover, 3 per cent. 



218 



