. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 32 BULLETIN 195; U. S. DEPARTMENT OF AGKICULTUEE. from selection work is the weeding out of these undesirable strains. It is not at all unlikely that from 5 to 10 per cent of weak, diseased, or unproductive plants may be found in all unselectcd seed potatoes. It is also equally certain that in nine cases out of ten in ordinary field. Ai^erage Bb/s of pr/mes per ^cre - 22. 66 â â Ci///s â â Bb/s of primes per /4cre â /O. /2 â CU//S ⢠- Bti/s of primes per Acre â â â ca//s ~ â â BbJs of pr/mes
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 32 BULLETIN 195; U. S. DEPARTMENT OF AGKICULTUEE. from selection work is the weeding out of these undesirable strains. It is not at all unlikely that from 5 to 10 per cent of weak, diseased, or unproductive plants may be found in all unselectcd seed potatoes. It is also equally certain that in nine cases out of ten in ordinary field. Ai^erage Bb/s of pr/mes per ^cre - 22. 66 â â Ci///s â â Bb/s of primes per /4cre â /O. /2 â CU//S ⢠- Bti/s of primes per Acre â â â ca//s ~ â â BbJs of pr/mes per /icre â â â â ca//s â â â â ~2030 Bi>/3 of primes per/Icre â " â ca//s - â â - 22:20 Bb/s of pr/mes per /Sere â CI///S - â â â 30S3 Bb/s of pr/mes per/Icre â â â CC///S â â - â Bb/s of primes perficre â ⢠CC///S â â ,« - ~ Bb/s of pr/mes per Acre CU//S Bb/s of pr/mes per/Icre ~ - â C(///s _â â ' â 0b/s per /Icre â â 3-4 /2 - â ⢠Cij//s ⢠â Bb/s of primes per/Icre â â â â â CO//S â â â â ^ BA/s of primes per/lcre â â â - CU//S - â - Bb/s of pr/mes per /Icre â Cfj//s ' - â Bb/s of pr/mes per Acre ^ â CU//S -⢠â â Bb/s ofpr//7>es per Acre â cv/Zs 6578 2^.42 Primes I Cul/s Fig. 2.âDiagram showing the hill-selection performauce record, season of 1912. practice these are unrecognized, because the weak or diseased plants are scattered here and there throughout the field and are obscured by surrounding healthy plants. Their resultant effect on yield is also unnoted and will probably remain so until we demand a practi- cally perfect 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 Unite
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