Sporophytic response to pollen selection for Alachlor tolerance in maize

In order to assess the efficiency of male gametophytic selection (MGS) for crop improvement, pollen selection for tolerance to herbicide was applied in maize. The experiment was designed to test the parallel reactivity to Alachlor of pollen and plants grown in controlled conditions or in the field,...

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Published inTheoretical and applied genetics Vol. 88; no. 6-7; p. 812
Main Authors Sari-Gorla, M, Ferrario, S, Frascaroli, E, Frova, C, Landi, P, Villa, M. (Milano Univ. (Italy). Dept. of Genetics and Microbiology)
Format Journal Article
LanguageEnglish
Published Germany 01.08.1994
Subjects
ALACHLORE
ALACLORO
AMELIORATION DES PLANTES
DOSAGE BIOLOGIQUE
ENSAYO BIOLOGICO
FITOMEJORAMIENTO
POLEN
POLLEN
RESISTANCE AUX PRODUITS CHIMIQUES
RESISTENCIA A PRODUCTOS QUIMICOS
SELECCION
SELECTION
ZEA MAYS
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Summary:In order to assess the efficiency of male gametophytic selection (MGS) for crop improvement, pollen selection for tolerance to herbicide was applied in maize. The experiment was designed to test the parallel reactivity to Alachlor of pollen and plants grown in controlled conditions or in the field, the response to pollen selection in the sporophytic progeny, the response to a second cycle of MGS, and the transmission of the selected trait to the following generations. The results demonstrated that pollen assay can be used to predict Alachlor tolerance under field conditions and to monitor the response to selection. A positive response to selection applied to pollen in the sporophytic progeny was obtained in diverse genetic backgrounds, indicating that the technique can be generally included in standard breeding programs; the analysis of the data produced in a second selection cycle indicated that the selected trait is maintained in the next generation.
Bibliography:97B7042
F30
F63
ISSN:0040-5752
1432-2242
DOI:10.1007/BF01253990