SoyBase Follow us on Twitter @SoyBaseDatabase
Integrating Genetics and Genomics to Advance Soybean Research



Reference Report for IND22016041
Title:Effects of nutrient source on the physiological mechanisms of Heterodera glycines and soybean genotypes interactions
Authors:Melakeberhan, H.
Source:Nematol. 1999, 1(2):113-120
Abstract:The effect of Heterodera glycines on H. glycines-resistant 'Bryan', susceptible-tolerant 'G88-20092', and susceptible-intolerant 'Tracy M' soybean cultivars grown in Hoagland solution (HS), HS without nitrogen (HS-N), or water treatments was studied for 25 to 26 days under greenhouse conditions (28 +- 2degreeC). Few of the 15 000 eggs per 800 cm3 soil infected 'Bryan' while 'G88-20092' and 'Tracy M' were severely infected, and photosynthesized and grew less in water and HS-N. Although less than the controls, photosynthetic rate in HS treatments was more than in water or HS-N. Nodulation was less in H. glycines than in the controls, and in HS than in water and HS-N treatments. However, more nitrogen was present in soil from HS than from HS-N or water treatments. Generally, cysts developed slower and had fewer eggs in HS followed by HS-N than in the water treatments. The results support the hypothesis that nematode infected plants do better under balanced nutrition than under nutrientdeficient conditions. It is postulated that the slowed-down nematode development and/or diminished reproductive potential might be host-mediated






Funded by the USDA-ARS. Developed by the USDA-ARS SoyBase and Legume Clade Database group at the Iowa State University, Ames, IA
 
USDA Logo
Iowa State University Logo