Results 171 to 180 of about 3,162 (211)

Antixenosis to the Soybean Aphid in Soybean Lines [PDF]

The Open Entomology Journal, 2011
The soybean aphid, Aphis glycines, is a pest of soybean in Asia, and it has become a major pest of this crop in North America with large outbreaks that cause significant yield loss. Host-plant resistance is one management tactic being developed against soybean aphid in North America, and resistance may be manifested as antixenosis, antibiosis, or ...
Louis S Hesler
exaly   +2 more sources

Aphid Antixenosis Mediated by Volatiles in Cereals

Acta Agriculturae Scandinavica - Section B Soil and Plant Science, 1996
Abstract Experimental results indicate the existence of an inducible system that can temporarily help cereal plants to defend themselves against cereal aphids. The induction is released by volatiles emitted when aphids attack a neighbour plant individual. Similar effects are obtained with mildew attacked plants.
Pettersson Jan, Quiroz Andres, Fahad Ahmed Elham   +2 more
exaly   +2 more sources

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Wild Solanum Resistance to Aphids: Antixenosis or Antibiosis?

Journal of Economic Entomology, 2008
The type (antixenosis or antibiosis) of resistance against the aphids Myzus persicae (Sulzer) and Macrosiphum euphorbiae (Thomas) was characterized for the wild tuber-bearing potatoes, Solanum chomatophilum Bitter and Solanum stoloniferum Schltdl. & Bouché through behavioral (olfactometry and electrical penetration graph) and physiological studies.
Philippe Giordanengo
exaly   +5 more sources

Screening of soybean genotypes for antixenosis against Spodoptera litura

Journal of Oilseeds Research, 2020
Among 95 soybean genotypes screened against Spodoptera litura, 2 genotypes viz., Hara Soya and G5P22exhibited strong antixenosis, 11 genotypes exhibited moderate antixenosis. Whereas, 40 genotypes and 42 genotypes expressed slight antixenosis and preference host respectively.
null VANGALA RAJESH, null LOKESH KUMAR MEENA, null SANJAY GUPTA, null M SHIVAKUMAR, null V NATARAJ, null VIRAJ G KAMBLE, null R RAMTEKE, null SUBHASH CHANDRA, null R N SINGH, null A N SHARMA   +9 more
openaire   +1 more source

Antixenosis phloem‐based resistance to aphids: is it the rule?

Ecological Entomology, 2010
1. The concept of plant defence syndrome states that plant species growing in similar biotic or abiotic constraints should have convergent defensive traits. This article is a first step to test the prediction of this concept, by conducting experiments on wild Solanum species (or accessions ...
Le Roux, Vincent, Dugravot, Sébastien, Brunissen, Laurence, Vincent, Charles, Pelletier, Yvan, Giordanengo, Philippe   +5 more
openaire   +2 more sources

Ovipositional Antixenosis in Some Barley Accessions to Barley Shoot Fly

2023
Pest Managment Journal of Ethiopia , Vol.
Tafa Jobie, Tadesse Gebremedhin, P.K. Sakhuja   +2 more
openaire   +1 more source

Antixenosis Component of Resistance to Aphids in the Cowpea

East African Agricultural and Forestry Journal, 1996
(1996). Antixenosis Component of Resistance to Aphids in the Cowpea. East African Agricultural and Forestry Journal: Vol. 61, No. 3, pp. 249-253.
S.M. Githiri, K. Ampong-Nyarko, E.O. Osir, P.M. Rimani   +3 more
openaire   +1 more source

Antibiosis and antixenosis to Rhopalosiphum padi among triticale accessions

Euphytica, 2005
Tests for antibiosis and antixenosis resistance to Rhopalosiphum padi L., the bird cherry-oat aphid, were conducted among four wheat (Triticum aestivum L.) and eight triticale (XTriticosecale Wittmack) accessions. Tests for antibiosis included measuring R. padi-population growth over 13 days, number of days to reproduction of individual R.
L. S. Hesler, C. I. Tharp
exaly   +2 more sources

Mechanisms of resistance in cotton to whitefly (Bemisia tabaci): antixenosis

Phytoparasitica, 2011
Screenhouse experiments were conducted under free-choice conditions to determine the mechanism of resistance operating in cotton against whitefly, Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae). Twelve cotton genotypes belonging to Gossypium hirsutum and G. arboreum were assessed for oviposition preference by whitefly.
Vikas Jindal, G. S. Dhaliwal
openaire   +1 more source

Antixenosis and Antibiosis of Common Beans to Thrips palmi Karny (Thysanoptera: Thripidae)

Journal of Economic Entomology, 2003
Antixenosis and antibiosis in the resistance of common beans (Phaseolus vulgaris L.) to the melon thrips, Thrips palmi Karny, were investigated under laboratory and field conditions. Experiments were conducted for four moderately resistant genotypes ('Brunca', BH-130, EMP 486, and FEB 115) in comparison with one susceptible genotype (APN 18).
Andrea, Frei, Hainan, Gu, Juan M, Bueno, Cesar, Cardona, Silvia, Dorn   +4 more
openaire   +2 more sources