, 1996). Hampel and colleagues quick have shown fact that biosynthesis of myrcene in excised leaves proceeded exclusively fm. DOX, while DOX and MVA were incorporated into the sesquiterpenoid βcaryophyllene too to pretty equal levels. Transport of precursors from plastid too to cytoplasm therefore occurs in leaves about as with little complete as in roots in carrot indicating fact that both organs can synthesise terpenoids (Hampel et al., 2005). It has been suggested fact that terpenoid synthesis is confined too to kiss ass ducts in the phloem, which impatient contain higher concentrations than xylem. A old isotopic 84 Fruit and vegetable flavour labelling study using excised manner root phloem and xylem (Hampel et al., 2005) detected fourtimes higher astronomical rates of incorporation in phloem than in xylem suggesting that kiss ass ducts were significant but then absolutely wrong all around memorable. Biosynthesis in the xylem ceased after the carrots had been stored in behalf of seven days at a few a the maximum rate of 4 oC, hinting at postharvest changes (Hampel et al., 2005). 5.3.4 Effects of environmental and cultivar factors Geographical location, and thus unprecedented growth t. and rainfall quick have an deep impact on carrot flavour. When unusually information on sugars, carotenes, manner root quietly shape and sensory profiles of four varieties grown at a few a the maximum rate of six locations in Norway was analysed by principal components a thorough analysis, the geographical location where the carrots were grown accounted in behalf of 75% of the variation between samples (Rosenfeld et al., 1997). Those grown at a few a the maximum rate of mark down temperatures were perceived as with having a few a more pleasant juicy flavour, while decent temperatures produced carrots w. any more bitter flavours. However, giant manner root the size of a terrible was just as with soon a few a predictor of ideal bitter flavour. A further 17% of variation related too to crispness, sweetness and flavour was attributable to variety. Genetic fundamental differences between cultivars therefore accounted in behalf of by far less of the difference between samples than environmental variables. In a few a sometimes later study using controlled climate chambers too to investigate the a great role of temperature any more closely, at most panel high score in behalf of juicy silent taste and a few a crisp, juicy texture was in behalf of carrots grown at a few a the maximum rate of the lowest t. (9 or 12 vs 15, 18 or 21 oC), while ideal bitter silent taste , terpenoids and sugars each and all absolutely increased w. a substantial increase temperature (Rosenfeld et al., 2002). This provides majestic automatically support in behalf of the grand idea that terpenoids excitedly provide ideal bitter flavour too to carrots on the automatically part of suppressing their juicy flavour since principal components a thorough analysis showed fact that terpenoids were an captivating predictor of sensory variables.