DEVELOPMENT OF AN EFFICIENT METHOD FOR in vitro GERMINATION OF SORGHUM POLLEN
2011
José Luis Anaya-López | Norma Angélica Garduño-Tamayo | Carlos Alberto Núñez-ColÃn | Victor Pecina-Quintero | Victor Montero-Tavera | Noe Montes-GarcÃa | Mario MartÃn INIFAP González-Chavira
The in vitro pollen germination of sorghum is useful in viability, physiology and genetic transformation studies of pollen. However, the media reported are not efficient. The aim of this study was to formulate an artificial medium, and to determine the optimal conditions for in vitro pollen germination of sorghum. We used a factorial arrangement of concentrations of sucrose, boric acid and calcium nitrate, also evaluated the effect of pH, relative humidity, the physical state of the medium and the stage of flower development over germination. The conditions described in this paper allowed to obtain up to 51% of in vitro pollen germination from 14 varieties of sorghum. These findings show that for increasing in vitro germination, optimal formulation of the medium is required, as well as control over relative humidity and phonological stage of pollen collection.
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