Pesquisa Agropecuária Brasileira (2012) 47, 173-180

Rodrigo Véras da Costa, Laércio Zambolim, Dagma Dionísia da Silva, Luciano Viana Cota and Carlos Roberto Casela (2012)
Utilização de multilinhas dinâmicas para o manejo da antracnose do sorgo
[Use of dynamic multilines for the management of sorghum anthracnose]
Pesquisa Agropecuária Brasileira 47 (2), 173-180
Abstract: The objective of this work was to evaluate the efficiency of dynamic multilines, using genetic mixing in populations of three-;way hybrids, in the management of sorghum anthracnose, caused by the fungus Colletotrichum sublineolum. Eighteen three-;way hybrids were obtained from seven different lines containing genes for resistance to the disease. The 25 genotypes of hybrids and lines were evaluated in field conditions. In some hybrids, a higher resistance level was observed when compared to that of the more resistant line used in the crosses, indicating an additive effect of the resistance genes of the different lineages in the composition of the final resistance of hybrids. The use of dynamic multilines reduced the disease intensity in field and increased productivity. This strategy makes it possible to use lineages that have desirable agronomic characteristics, but are susceptible to anthracnose.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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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.
	Colletotrichum sublineola	Sorghum (crop)	Brazil (south)