Identifier: productionoflima224shaw (find matches)
Title: The production of the lima bean : the need and possibility of its improvement
Year: 1911 (1910s)
Authors: Shaw, George Wright, 1864-1932 Sherwin, M. E. (Melvin Ernest), 1881-
Subjects: Lima bean
Publisher: Berkeley, Cal. : Agricultural Experiment Station
Contributing Library: University of California, Davis Libraries
Digitizing Sponsor: University of California, Davis Libraries

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Chart No. IV. can only be surmised, but, judging from appearances in the field, thesame general relation would hold between these two characters. This same fact is again shown (Chart III) in using the individualplants in a variety, instead of the group arrangement which appearsin Chart II. A study of these curves shows that the yield increases much morerapidly than does the percentage of ripe pods. This seems to offersome hope of ultimately being able to make a selection within a selec-tion, by which we may be able to secure a plant which may be earlier Bulletin 224) THE PRODUCTION OP THE LIMA BEAN. 243 1 Mil II i I I I I I I I 1 i
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244 UNIVERSITY OP CALIFORNIA—EXPERIMENT STATION. than those now grown, and, at the same time, maintain yield as highas the present average, and it may be possible to raise such averageslightly. Great care will have to be exercised in selection, not to selectso closely for early maturity as to kill the matter of yield. Correlating the yield, average number of beans per pod, and theaverage weight per bean it appears that the former characters aredirectly related, but that the last named character is a distinctlyreverse relationship. Prepotency in high yield, or the ability to project high productivityinto the succeeding crop, can not be determined merely upon the factthat the plants selected as foundation stock gave a high yield. Manyplants may themselves carry a high yield, but still not possess the projec-tive power to influence succeeding crops. To determine which of the orig-inal plants selected on account of their productiveness, as foundationstock, possess this projective power,

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