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The Influence of the Cytoplasm on Ear Number Expression in Corn 1
Author(s) -
Ellsworth R. L.,
Peloquin S. J.
Publication year - 1972
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1972.0011183x001200030040x
Subject(s) - biology , backcrossing , stalk , inbred strain , zea mays , reciprocal cross , agronomy , hybrid , botany , genetics , horticulture , gene
The influence of the cytoplasms on ear number expression on the main stalk was studied in the progeny of five inbred lines of corn ( Zea mays L.). The F 1 , F 2 , and both reciprocal backcross generations were grown in two environments. The ears on the main stalk of each plant were visually enumerated using a scale of zero to six ears per plant. The nubbins were classified as a full ear when seed had developed to cover half of the cob and as zero if the cob was not half covered. By the use of Duncan's New Multiple Range Test, it was possible to demonstrate statistical differences between seven reciprocal pairs. On the basis of these comparisons it is suggested that the plant breeder interested in increasing ear number per plant could enhance the possibility for success by screening for beneficial cytoplasmic‐genotypic interactions.