Male gametophytic generation and a possible approach for selective pollination in carnation (Dianthus) breeding program

Tejaswini
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Tejaswini: University of Agricultural Sciences, Bangalore, India

Plant, Soil and Environment, 2002, vol. 48, issue 8, 368-375

Abstract: Present study focuses on making best possible use of male gametophytic generation in carnation breeding program. Exploration of pollen population revealed the existence of variability in terms of pollen morphology and histochemical content among as well as within varieties and species of Dianthus caryophyllus and D. chinensis sufficient to make selection. Pollen grain size and histochemical content were found to be associated with germination capacity and pollen tube growth rate. In addition, pollen germination capacity and elongation of pollen tube in response to presence of culture filtrate from F. oxysporum. f.sp. dianthi causal organism of fusarium wilt in carnation was found to be governed by pollen grain size and histochemical content of pollen grains. Entire result suggests the possibility of selecting the desired pollen grains from a pollen population and possibility of attempting selective pollination in carnation breeding program.

Keywords: carnation; pollen; Fusarium oxysporum; Dianthus chinensis (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:48:y:2002:i:8:id:4382-pse

DOI: 10.17221/4382-PSE

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