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Effect of Nonpollination of First or Second Ears of Nonprolific and Prolific Maize Hybrids 1
Author(s) -
Prior C. L.,
Russell W. A.
Publication year - 1976
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/cropsci1976.0011183x001600020041x
Subject(s) - biology , hybrid , pollination , zea mays , grain yield , agronomy , yield (engineering) , horticulture , botany , pollen , materials science , metallurgy
Three types of maize ( Zea mays L.) single‐cross hybrids were compared for flexibility to transfer grain development between first and second ears when pollination was prevented on one of the ears. The three types, with seven crosses/type, were: nonprolific, prolific, and elite‐prolific. When pollination of the first ear was prevented, grain production of second ears was increased, but yield losses relative to the controls were: nonprolific (85.5%), prolific (39.4%), and elite‐prolific (27.5%). When pollination of the second ear was prevented, yield changes relative to the controls were: nonprolific (+1.4%), prolific (−13.5%), and elite‐prolific (−10.2%). Evidently, flexibility was much greater in the prolifics than the nonprolifics, but considerable variation was observed among hybrids of a type.