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This article in CS

  1. Vol. 22 No. 5, p. 916-918
     
    Received: May 15, 1981


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doi:10.2135/cropsci1982.0011183X002200050004x

A Second-Axillary Flower Trait in Upland Cotton1

  1. J. E. Quisenberry and
  2. D. R. Rummel2

Abstract

Abstract

A cotton (Gossypiura hirsutum L.) strain, “RQSX-I”, was developed which consistently produces flowers at the second-axillary position. The purpose of this investigation was to determine the agronomic value of the trait, to study its production of flowers and fruit, and to estimate its inheritance.

A comparison of RQSXol with two cotton cultivars, ‘Tamcot CAMD-E’ and ‘Lankart 611’, showed that RQSX-l had smaller fruit, earlier maturity, its first fruiting branch at a lower node, more total fruiting positions, fewer fruiting branches, and more fruiting positions/fruiting branch than did either cultivar. It set more fruit than Lankart 611, but not than Tamcot CAMD-E. The inheritance study suggested that the development of the secondaxillary position was under quantitative genetic control.

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