Phytopathology (1996) 86, p. S46 (Melakeberhan)

Haddish Melakeberhan (1996)
Effect of nutrition on Glycine max response to nematode infection
Phytopathology 86 (11 suppl.), S46-S46
Abstract: The effect of 6,000 separate or in two (50:50 each) or three (33.3 each) combinations of each of Heterodera glycines and Meloidogyne incognita (eggs) and Pratylenchus penetrans (vermiform stages) on H. glycines resistant, tolerant, and susceptible Glycine max cultivars growth with either twice weekly or daily fertilization with Hoagland solution (HS) was tested under greenhouse (26 ± 2 C) conditions for five weeks. When fertilized with HS twice weekly, separate inoculations of H. glycines and M. incognita on the susceptible cultivar and M. incognita on the tolerant cultivar resulted in significantly less shoot weight and nitrogen content compared with the controls. With the exception of concomitant inoculations of H. glycines and M. incognita, all other combinations treatments resulted in a significantly lower shoot N in the susceptible cultivar. Despite inconsistent effect on nematode population densities, none of the nematode treatments had any effect on plant weight or nutrient content under daily fertilization. The results indicate that increased fertilization may help a susceptible cultivar to compensate for nematode damage.
Database assignments for author(s): Haddish Melakeberhan

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Meloidogyne incognita	Soybean (Glycine max)
	Heterodera glycines	Soybean (Glycine max)
	Pratylenchus penetrans	Soybean (Glycine max)