保加利亚葡萄酒发展史及产区与品种介绍

保加利亚葡萄酒产业特色明显,葡萄种植和酿造历史悠久。本文介绍了保加利亚3000年的葡萄酒历史中发生的主要事件和重要转折点,以及在世界葡萄酒行业的地位。经过长期的发展和演化,按照气候和环境条件的不同,保加利亚主要划分为5个葡萄酒产区,2个受保护的地理标志产区和55个原产地命名产区。目前的主栽品种以世界著名的欧洲种为主,包括赤霞珠、美乐、霞多丽、长相思等,同时独具特色的保加利亚本土品种帕米德、迪蜜雅、甘沐泽和玛露德等也在生产中扮演者重要角色,并成为保加利亚葡萄酒产业的特色之一。

我国芸芥的分布区域和品质特性及研究价值

较为详细地介绍了我国芸芥的分布区域和主要品质特性 。

Ex-ante Adoption Analysis for Improved Sorghum Varieties in the Lake Zone Tanzania

The objective of this study was to determine the influence of production and consumption characteristics of improved sorghum varieties on farmers＇ adoption decisions. Thirty-four farmers and 231 consumers evaluated five sorghum varieties to determine their preferences. The perceptions of the farmers and consumers were summarized and presented to 100 sorghum farmers to help them choose the best varieties, based on results obtained earlier. Ordered probit models were used to predict their adoption decisions. Results indicated that when adoption is predicted on production characteristics alone the adoption rate was lower than when prediction incorporated both production and consumption characteristics of the sorghum varieties. Therefore, when disseminating new technologies farmers need to be informed about the production as well as the consumption characteristics of the new technologies. The outcomes of this study imply that involving producers and consumers in the generation of new agricultural technologies would potentially increase their adoption rates when they are disseminated. Thus a subsector analytical approach is recommended.