My Account: Log In | Join | Renew
Search
Author
Title
Vol.
Issue
Year
1st Page

Abstract

 

This article in CS

  1. Vol. 14 No. 6, p. 849-852
     
    Received: June 12, 1974
    Published: Nov, 1974


 View
 Download
 Alerts
 Permissions
 Share

doi:10.2135/cropsci1974.0011183X001400060022x

Meiotic Chromosome Behavior and Pollen Fertility of a Triploid Hop1

  1. Alfred Haunold2

Abstract

Abstract

In triploid Humulus lupulus L., metaphase I cells had a mean of 3.46 trivalents, 6.47 bivalents, and 6.67 univalents/pollen mother cell. Chromosome distribution at anaphase I was irregular, and 1/3 of the cells had laggards. About half of the quartets had one or two micronuclei, but rarely three. Diploid females pollinated from the triploid male produced less than 1/4 the number of seeds/cone, as the open-pollinated diploid control, even though most of the pollen grains from the triploid appeared well-filled. Diploid flowers hand-pollinated from the triploid male developed into distinctly larger cones than did adjacent nonpollinated flowers on the same plant.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .