Section 1
Chapter 358

Effect of the aphids Metopolophium dirhodum and Sitobion avenae, nitrogen and potassium on the yield, yield components and some morphological characteristics of a wheat cultivar (Triticum aestivum L.)

Carrillo, R.; Mellado, M.

Agro Sur 3(2): 109-116


Accession: 000357334

In 3 field trials in 1971-4 using spring wheat Mexifen, applications of N were found to increase yield, mainly due to an increase in the number of ears/m2. N also increased plant height and flag leaf area. An attack of aphids reduced grain weight, and to a lesser extent grain number/ear, plant height and flag leaf area. Heavier applications of N led to higher aphid populations, especially before ear emergence.

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