Hubungan antara fenologi tanaman dengan hasil dan mutu rajangan kering tembakau temanggung

Yield and quality of temanggung tobacco are influenced by plant genetic and growth environmental factors. Plant phenology is one of genetic characters which affects on yield and quality of virginia tobacco. Plant phenology of temanggung tobacco is not yet well defined. The research, aimed to find plant phenology as genetic characters related to dry sliced yield and quality of temanggung tobacco, was conducted in glass house of Indonesian Tobacco Research and Fibre Crops Institute (IToFCRI) from March to August 2008. Nine cultivars of temanggung tobacco were arranged in randomized block design with three replications. Variables observed were leaf initiation, terminal leaf expansion, harvesting period, flowers initiation, and final harvesting. Stepwise analysis used to identify plant phenology wihch affect on yield and quality. The results showed that the phenology of plants that includes the length of time from leaf initiation to terminal leaf expansion, leaf initiation to harvesting period, terminal leaf expansion to harvesting period, planting to flowers initiation, planting to pruning, planting to final harbesting, flowers initiation to final harvesting, pruning to final harvesting, and fisrt harvesting to final harvesting were genetic characters of temanggung tobacco. The main phenological characters that affect on dry sliced yield sorted the largest is the length of time from planting to pruning, leaf initiation to terminal leaf expansion, planting to final harvesting, first harvesting to final harvesting, and flowers initiation to final harvesting with total effects of them was 90.3 percent. The main phenological characters that affect on quality of dry slice sorted from the largest is the length of time from planting to pruning, terminal leaf expansion to harvesting period, leaf initiation to terminal leaf expansion, planting to final harvesting, and first harvesting to final harvesting with total effect of them was 84.7 percent