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

Abstract

 

This article in CS

  1. Vol. 13 No. 4, p. 456-459
     
    Received: Feb 3, 1973
    Published: July, 1973


 View
 Download
 Alerts
 Permissions
 Share

doi:10.2135/cropsci1973.0011183X001300040018x

Intra-Plant Variation for Pollen Production in Male-sterile and Fertile Alfalfa1

  1. D. K. Barnes and
  2. Rada A. Garboucheva2

Abstract

Abstract

In Medicago saliva L. intra-plant variation in pollen production occurred in partially male-sterile clones, but it was not associated with either flower position on the plant or sampling date. The variation occurred at random throughout the plant. Anthers within the same flower varied for both number of pollen grains and percentage of normal pollen grains.

The average number of pollen grains per anther varied among clones from about 440 to 850. The free anther had only about two-thirds as many pollen grains as each of the remaining nine anthers. The number of normal pollen grains correlated with visual estimates of the amount of dehisced pollen, r = .854**, 11 d.f. Pollen abortion in male-sterile plants apparently reduced internal pressure sufficiently to prevent rupture of the anther wall and extrusion of pollen.

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

Copyright © .