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This article in CS

  1. Vol. 6 No. 6, p. 519-523
     
    Received: Mar 24, 1966


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doi:10.2135/cropsci1966.0011183X000600060006x

Morphological and Cytological Characteristics of Five Trisomics of Sorghum vulgare Pers.1

  1. K. F. Schertz2

Abstract

Abstract

The objective of this study was to isolate, distinguish, and characterize the trisomics of a specific cultivar of Sorghum vulgate Pers. Five of 10 possible primary trisomics were derived from a triploid and were increased. They are as follows:

  1. Small-glume trisomic — glumes yellowish and small in a flexible-branched panicle; late flowering

  2. Stiff-branch trisomic — panicle grayish.green with stiff branches; seed brightly colored

  3. Cone trisomic — panicle pointed at emergence, becoming cone-shaped as flowering progresses

  4. Large-glume trisomic — panicle rather open-topped with large glumes

  5. Bottle-brush trisomic — panicle straight-sided and white at the apex when it emerges

Each of these trisomics sets stone seed when crossed with other stocks and transmits the trisome chromosome with a frequency sufficient to make recovery feasible in the F1 progeny. One can distinguish hybrid progenies if he is familiar with the characteristics of the trisomics within the parent cultivar.

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