No abstract

No abstract

Mint oil is a key source of natural flavors with wide industrial applications. Two unbalanced polyploid cultivars named Native (Mentha Spicata L) and Scotch (M. × gracilis Sole) are the main producers of spearmint type oil, which is characterized by high levels of the monoterpenes (−)-carvone and (−)-limonene. These cultivars have been the backbone of spearmint oil production for decades, while breeding and improvement remained largely unexplored, in part, due to sterility in cultivated lines. Here we show that sexual breeding at the diploid level can be leveraged to develop new varieties that produce spearmint type oil, along with the improvement of other important traits. Using field trials and GC-FID oil analysis we characterized plant materials from a public germplasm repository and identified a diploid accession that exhibited 89.5% increase in oil yield, compared to the industry standard, and another that produces spearmint type oil. Spearmint-type oil was present at high frequency in a segregating F2 population (32/160) produced from these two accessions. Field-testing of ten of these F2 lines showed segregation for oil yield and confirmed the production of spearmint-type oil profiles. Two of these lines combined high yield and spearmint-type oil with acceptable analytic and sensory profiles. These results demonstrate that spearmint-type oil can be produced in a diploid background with high yield potential, providing a simpler genetic system for the development of improved spearmint varieties.

No abstract

In Indonesia much uncertainty remains in the wake of the dramatic changes that unfolded in the latter half of the l990's. By the end of the 20th century, the Indonesian economy was in ruins. The concept of democracy remained contested. The transportation and communication system that once at least minimally linked the diverse and at times disparate areas and peoples of the Indonesian archipelago into an Andersonian imagined national community collapsed, making more likely movements for regional autonomy, in turn, making the status of an Indonesian nation itself uncertain. One thing that is certain, however, is that Socharto, the "Father of Development," is history. As political and economic policy makers in Indonesia, the United States, and around the world, and more importantly, Indonesia's men, women, and children pick up the pieces, it is our responsibility to look back and consider the past fifty years.