About Us | Help Videos | Contact Us | Subscriptions
 

Members of ASA, CSSA, and SSSA: Due to system upgrades, your subscriptions in the digital library will be unavailable from May 15th to May 22nd. We apologize for any inconvenience this may cause, and thank you for your patience. If you have any questions, please call our membership department at 608-273-8080.

 

Institutional Subscribers: Institutional subscription access will not be interrupted for existing subscribers who have access via IP authentication, though new subscriptions or changes will not be available during the upgrade period. For questions, please email us at: queries@dl.sciencesocieties.org or call Danielle Lynch: 608-268-4976.

Abstract

 

This article in CS

  1. Vol. 15 No. 1, p. 77-78
     
    Received: Apr 4, 1974


 View
 Download
 Alerts
 Permissions
Request Permissions
 Share

doi:10.2135/cropsci1975.0011183X001500010022x

Heritability of Oil Content in Sunflowers1

  1. G. N. Fick2

Abstract

Abstract

Seed oil content in sunflowers (Helianthus annuus L.) was determined by nuclear magnetic resonance (NMR) for parent, F1, F2, and backcross generations of the cross P-21 VRl/Menn RR-18-1 and for the F2 and F3 generations of the cross cmsPI 343765/HA 119//HA 62-4-5/3/T66006-2.

Broad and narrow-sense heritability estimates on an individual-plant basis in the F2 generation of the cross P-21 VRl/Menn RR-18-1 were 0.72 and 0.61, respectively. The ratio of narrow to broad-sense estimate indicated that genetic effects were largely additive. Heritability in the F2 generation of the second cross, as estimated by the parent-progeny regression method, was 0.52. Actual gain in F3 from simulated selection for high oil content in the F2 generation was in good agreement with that predicted from the regression estimate. The heritability values were of sufficient magnitude to encourage selection for high oil content on individual plants in early generations.

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

Copyright © .