Effect of planting media and nutrient solutions and their interaction on growth and yield of shallot on hydroponic wick system was studied. The study was conducted in a screen house. A two factor experiment with three replications, arranged in randomized completed block design, was carried out. First factor was types of planting media i.e. sand, sand+husk charcoal (1:1), and sand+sawdust (1:1). Second factor was types of nutrient solution i.e. AB Mix, fermented urine of rabbit, and fermented vermicompost. Observed variables were plant height, leaf, tiller, and bulb number, root volume, total root length, plant fresh weight, and bulb dry weight. Data were analysed by F test followed by DMRT at a 5% error level. Results showed that shallot grown on sand+sawdust was the lowest, but types of media did not have significant effect on the other variables; plants supplied with fermented vermicompost nutrient solution had the lowest values for all observed variables. It was concluded that 50% substitution of sand with husk charcoal or sawdust did not reduce yield of shallot; solution of fermented urine of rabbit could replace solution of AB Mix, but solution of fermented vermicompost could not replace AB Mix solution for growing shallot on wick system.

Rainfed rice breeding for high yield is an alternative to increase national rice production. The breeding can beaccelerated using anther culture technique. The selection of high productivity lines may be more effective if it also involvesthe traits contributing to or affecting the yield traits. This study aimed at determining suitable characters as selection criteriaand obtain a selection index model for high yielding doubled haploid rainfed rice lines. The experiment was conductedin a greenhouse of ICABOGRAD, Bogor and Sawah Baru Experimental Station, Bogor Agricultural University using arandomized complete block design (RCBD) with three replications. Thirty doubled haploid lines derived from anther cultureand two check varieties namely Ciherang and Inpari 18 were used. The results showed that plant height (TT), number of filledgrain per panicle (GI), and productivity (PRD) could be used as suitable selection characters. The determination of selectionindex obtained a selection model which was Selection index = 0.48 PRD + 0.31 JGI - 0.31 TT. This model can be used toselect high yielding doubled haploid rainfed rice lines.