关键词: 罗非鱼, 罗非鱼, 丁香酚, 皮质醇, 乳酸, 应激

Abstract: In order to select varieties of millet for arid and low production hilly regions, 9 varieties of millet, which were breed in Shanxi Academy of Agricultural Sciences, were planted in 3 arid and low production hilly regions of Shanxi Province for 2 consecutive years, the variety of‘Jingu 21’was planted as control. The phenotypic traits and yield of all varieties in different test points were compared. The results showed thatannual variability of four indexes did not reach a significant level in Zuoquan. The phenotypic traits did not reach a significant level except production in Yuci. Moreover, the characters of all the varieties in Yuxianreached a significant level except height (P >0.01), and the indicator of 2012 was higher than that of 2013. The plant height and ear length of all varieties in three pilot sites were significantly different, the average plant height in Yuci was the highest (2013: 169.5 cm; 2012: 162.1 cm), the pant height in Zuoquan was the lowest (2013: 123.8 cm; 2012: 117.9 cm); the average ear length in Yuci was the longest (24.4 cm), the ear length in Yuxian was the shortest (14.3 cm). Different new varieties of millet in different regions were different, and the production of new variety was higher than that of the local variety‘Jingu 21’.the local variety of ‘Jingu 21’.