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Effect of Bacterial Pustule on Closely Related Soybean Lines 1
Author(s) -
Weber C. R.,
Dunleavy J. M.,
Fehr W. R.
Publication year - 1966
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1966.00021962005800050027x
Subject(s) - biology , yield (engineering) , agronomy , inoculation , horticulture , metallurgy , materials science
Agronomic and chemical performance of closely related resistant and susceptible soybean lines was evaluated in the presence of bacterial pustule ( Xanthomonas phaseoli var. sojense (Hedges) Starr & Burk.) The mean difference in bacterial pustule score between resistant and susceptible lines was 1.7. With these moderate disease conditions, the average seed yield reduction in the susceptible lines was 4.3%, of which 86% was attributed to reduced seed number and 14% to reduced seed size. On a linear basis, there was a seed yield reduction of 49.8 kg/ha (2.1%) for each unit increase in pustule score. Height, lodging, maturity, protein, and oil percent were comparable in the resistant and susceptible lines.