No. (i2:)j AX EARLY I'Al'KK OX MAIZE CROSSES 101 



doiuiiiaiice of imrjile aleiiroiu" in tlic 1-', kci-iicl-. I'ut tlie 

 stareliy cliaracter, ordinarily (M.niplch'lN (hMniiiiiiii In Fi 

 seeds of starcliy X sii<?ary cndd-] ici'iii cro-scs. ndi doni- 

 iiiaiit in all tlio kernels. So I';!!' the F, vav llln^t rated 

 on Fl;ite 1 indicates on Nvlii<-li tliiMv ai'o foni- tol.M'nhlv 

 co.nplctr n.xN. in >i,ul!K tln iv i. ratio of N\rinklod to 

 sniootli kernel> of 7;;::)(l, .n- approximately 1:1. wliieli 

 would o-o to indicate that tiic -rrd parent \va^ prol.ahly 

 lieterozyg'ous as to >tarcli> cndo-pcrni. The wi'inkled 

 seeds fi'oni tliis eai' jtrodnccd car-, to juduv ;iii'ain from 

 iho plate, for tlierc i- n<. dct;;ilc.l dc-.-ri pi ion. that were 

 pniv ^\rinkled in tlicii- kcrnc!-. wlicrca- the Hnn.^r,, ker- 

 neN from the F, (s-ir prodncc^l eai'- on whicli hotli Mn<.otli 

 and wriidsled F, keriieU wciv liorne. Three Midi ear^ are 

 illn^trated. On ea.-h of ih. ear- three .-omplep- i-ow^ of 

 kernels are visible in the illn-t ration. Counts ot' these 

 kernels, as nearly as th(\v can !><' made from the illu-ti'a- 

 tions, show: In ear Xo. :! ( /'. c the ear sliowinu' the im- 

 mediate effects of the cro-- and l.earinii- the \\ kernels) 

 the ratio of smooth -eed. to wrinkled -eed- i- a- 



It wa^ ei-ht vear- later thai the paper- of Mmdel xvere 

 re.H-<.overed, an<l at thi- lime no ...icntilic kn^ulrd-e of 

 tile uviiMti.- iM.havior of coi-n e\i-te.l nt nli. M.-Clner oh- 

 taine.l. houover. vex <k-!imte <.vidence that thr cars 

 -))orne l.> l!> hrid corn plant- urown ihe tirM y.iy iVom 

 the cross," as he puts it. or a- \\ c -hoiild sa\ t o-day. plants 

 of the F, o-cneration. wrvr lai-er mi the aveia^c than the 

 avera,e:e eai' horne 1>\ tlie parent-, and that the \ield was 

 o-nafer. Takin- M.-Cliier-- tahiilat ion- of hi- iv-nlt- on 

 p. !>7 of r>nll. lM. an.i rcNi-inu it- imtiition to cnrre-pond 

 with pre-ent n-a-e. xve have the data -iven on pa-e 102. 



From thi- earh ovp-rimmit the ,v-nlt of cro-in- >o 

 far a- the yield of the K -..netali-n i- concernd. i- fairly 



F, h>hrid- >ie!d moiv than the averauv of the two pa- 

 rent<. although in onlv <even ca-e- did tlu- vield of the 

 F, hxl.rid exceed that of ix.tli the j.aivnt-. McCluer aUo 

 enipha,-i/es the infcrioi- c.aidltion <.f the -elf fertilized 

 plots. 



