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- Title
GENETIC-PHYTOHORMONAL INTERACTIONS IN MALE FERTILITY AND MALE STERILITY PHENOTYPE EXPRESSION IN SUNFLOWER (Helianthus annuus L.).
- Authors
Duca, M.
- Abstract
Amounts of indole-3-acetic acid (IAA) and gibberellic acid (GA3) in vegetative and reproductive tissues of diverse sunflower genotypes have been investigated using gas-liquid chromatography. Quantification of endogenous GA3 content in the homozygous line MB 514, characterized by cytoplasmic male sterility (cms), revealed a lower level of the hormone in contrast to the fertility restorer line RW 637 Rf. The highest amount of IAA was found in the heterozygous F1 hybrid obtained by crossing these lines, regardless of tissues and ontogenetic phases analyzed. Similar features were found in leaves, apices, inflorescences and disk flowers in most of the investigated variants.
- Subjects
INDOLE; ACETIC acid; GIBBERELLIC acid; SUNFLOWERS; GENOTYPE-environment interaction; MALE sterility in plants; PLANT fertilization; PLANT hormones
- Publication
Helia, 2008, Vol 31, Issue 48, p27
- ISSN
1018-1806
- Publication type
Article
- DOI
10.2298/HEL0848027D