Variation in flower and pod abortion among soybean varieties of three maturity groups

Author

Evelyn E. Richmond

Date of Award

12-1980

Degree Type

Thesis

Degree Name

Master of Science

Major

Plant, Soil and Environmental Sciences

Major Professor

Fred L. Allen

Committee Members

L.N. Skold, V.H. Reich

Abstract

Six soybean (Glycine max L.. Merr.) varieties were evaluated for flower and pod production and abortion on the main-stem and branches following two dates of planting. The number of flowers and pods which were produced at individual nodes on the main-stem and branches were recorded for each variety. Differences were observed among varieties for flowers and pods produced and aborted on both the main-stem and branches following both dates of planting. Abortion of flowers plus pods on a whole plant basis varied from 55 to 84 percent among varieties after the first date of planting and from 48 to 72 percent after the later planting. Following the later planting, the varieties produced fewer nodes on the main-stem and branches, branches per plant, as well as flowers and pods. In addition, the varieties produced fewer seed per plant, lower seed weights, and lower yields following the later date of planting. These results indicate that there is variation for percent abortion in soybeans.

Recommended Citation

Richmond, Evelyn E., "Variation in flower and pod abortion among soybean varieties of three maturity groups. " Master's Thesis, University of Tennessee, 1980.
https://trace.tennessee.edu/utk_gradthes/7731