. Contributions from the Laboratory of Plant Genetics. 68 Research Hull* tin No. 2 genes. That the seeds of the original ear of Missouri dent had different size potentialities is indicated by the difference between the four fraternities, 353, 354, 357, and 358, which were grown from selfed seed of different individual plants of No. 146. In 1911 the parent stocks, two F2 families, and several P3 lots were grown side by side. The FVs again showed greater variation than the parents as indicated both by the range of heights and by the coefficients of variation, tho no individuals. CW. tS- 65"
. Contributions from the Laboratory of Plant Genetics. 68 Research Hull* tin No. 2 genes. That the seeds of the original ear of Missouri dent had different size potentialities is indicated by the difference between the four fraternities, 353, 354, 357, and 358, which were grown from selfed seed of different individual plants of No. 146. In 1911 the parent stocks, two F2 families, and several P3 lots were grown side by side. The FVs again showed greater variation than the parents as indicated both by the range of heights and by the coefficients of variation, tho no individuals. CW. tS- 65" 265- *fcr HP /fj- Fig. 14. Height of plants in 1911—Tom Thumb pop at the left and Mis- souri dent at the right. were quite so small as those of the small parent and few so large as those of the large parent. None of the F3 progenies exhibited the range of variation shown by the F2 fraternities, tho as measured by the coefficient of variation some of them were practically as variable. Measured by the same standard, how- ever, some of them were even less variable than the parent stocks, but whether any of them were homozygous in all or most of their size factors can only be told by growing another generation. No F3 family was so small as Tom Thumb pop and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bussey Institution. Boston : [s. n. ]
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