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Relationship of Maize Characters with Yield in Testcrosses of Inbreds at Different Plant Densities 1
Author(s) -
ElLakany M. A.,
Russell W. A.
Publication year - 1971
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/cropsci1971.0011183x001100050028x
Subject(s) - biology , zea mays , agronomy , yield (engineering) , grain yield , plant density , inbred strain , pollen , tassel , botany , biochemistry , materials science , sowing , gene , metallurgy
The objective was to study the effects of different plant stand densities on the relationships of important plant and ear characters to grain yield for testcrosses of maize ( Zea mays L.) inbred lines. The inbred lines, in the F 5 generation and originating from M14xC103, were evaluated in two groups, based on high and low hybrid performance in an earlier study. Our study was done in six environments with low, intermediate, and high stand densities in each environment. At the low density only plant and ear heights were correlated significantly with yield; at the intermediate density ear diameter and shelling percentage, in addition to plant and ear heights, were correlated significantly with yield; at the high density all characters except 300‐kernel weights and dates of pollen shed and silk emergence were correlated significantly with yield.