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This article in CS

  1. Vol. 7 No. 5, p. 511-516
     
    Received: May 4, 1967
    Published: Sept, 1967


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doi:10.2135/cropsci1967.0011183X000700050031x

Components of Height Inheritance of the Semidwarf Straw Character in Wheat Triticum aestivum L.1

  1. Jerrel B. Powell and
  2. A. M. Schlehuber2

Abstract

Abstract

Internode patterns of both the semidwarf and tall parents, used in a cross to study the inheritance of plant stature, revealed that: I) Average internode lengths were progressively longer from the base of the culm to the spike, and 2) The peduncle contributed approximately one-half the total height of the tall parent and about one-third the total height of the semidwarf parent in field plantings. The analysis of means for the three components, head length, peduncle length, and culm length (less peduncle), showed that head length in the segregating tall progeny added negative genetic components to total plant height. Gene effects tended to cumulate additively for peduncle length and culm length (less peduncle). Partitioning of populations for the two major components of plant height and total plant height pointed to one major nondominant factor accounting for most of the genetic variation differentiating the semidwarf and normal-statured wheat.

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