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This article in CS

  1. Vol. 16 No. 2, p. 305-307
     
    Received: Mar 11, 1975


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doi:10.2135/cropsci1976.0011183X001600020041x

Effect of Nonpollination of First or Second Ears of Nonprolific and Prolific Maize Hybrids1

  1. C. L. Prior and
  2. W. A. Russell2

Abstract

Abstract

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.

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