The 1936 Iowa corn yield test Rhoades, M. Robinson, Joe
dc.contributor.department Extension and Experiment Station Publications 2020-03-10T13:30:00.000 2020-06-30T00:58:11Z 2020-06-30T00:58:11Z 2017-08-22 1937-02-01
dc.description.abstract <p>1. Eight hundred seventy-nine entries were made in the 10 harvested districts of the 1936 Iowa Corn Yield Test. The yield test fields in districts 4 and 7 were abandoned because of crop failure. The entries were divided into four groups; regular open-pollinated, experimental open-pollinated, regular hybrids and experimental hybrids.</p> <p>2. Data were obtained for each entry on acre yield, percentage stand, moisture content at time of harvest, lodging resistance, ear height, percentage of dropped ears and percentage of damaged kernels.</p> <p>3. The outstanding feature of the 1936 Iowa Corn Yield Test was the superior performance of the hybrid combinations as compared with the open-pollinated varieties. The average yield of all hybrid entries in the 10 fields was 30.8 percent greater than for the open-pollinated strains. In District 11 the hybrids averaged 53.9 percent greater yield than the open-pollinated varieties. The hybrids in District 1, however, had an advantage of only 6.6 percent. This is attributed to the damage wrought by a severe hail storm the latter part of August which brought the effective growing season to a premature end. In addition to producing a greater yield the two classes of hybrid entries had much more lodging resistance.</p>
dc.identifier archive/
dc.identifier.articleid 1581
dc.identifier.contextkey 10641304
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath bulletin/vol31/iss355/1
dc.source.bitstream archive/|||Fri Jan 14 17:48:09 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.title The 1936 Iowa corn yield test
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isOrgUnitOfPublication 302bd0e8-f82f-406a-88b5-c8f956b5f77b
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