Abstract
ABSTRACT Maize (Zea mays L.) containing the leafy (Lfy) gene has not been extensively used in genetic investigations because the gene has been patented. The objective of this study was to obtain genetic information on ear moisture loss rate (EMLR), leaf number above the ear, SPAD chlorophyll of leaves, and harvest index via use of a diallel cross (Griffing's Method 3) of seven leafy parents. Ear moisture loss rate was measured via an electronic probe device (EMLR-P) and the “oven method” (EMLR-O). General combining ability (GCA) was significant for EMLR-P and EMLR-O, but GCA × year interaction existed only for EMLR-O. Thus, multiple-year data are needed for investigations of EMLR-O, which increases evaluation cost. Additive genetic correlation between EMLR-P and EMLR-O was 0.96. Parents Mo17 and 914 had the desirable, negative GCA effects. The number of leaves above the ear was a complex, quantitatively inherited trait, as revealed by significant GCA, specific combining ability (SCA), nonmaternal (recipro...
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