论文部分内容阅读
双低油菜新品种中双9号产量潜力较大,3年田间试验平均公顷产量为2529.2kg,2004年收获实产达2924.4kg,创最高水平。该品种具有高产的生育特性,即较长的营养生长,快速的生殖生长;叶身宽,叶柄短,根颈粗壮,单株叶面积和叶面积指数高,植株干物质积累量高,不同生育时期干物质积累量其趋势为抛物线,开花期达高峰;根部干重始终较中油821高出30%以上,到成熟期要高出50%以上;具有高产的经济性状,合理的产量结构;高抗倒性,高抗(耐)菌核病等。
The yield of double-low rapeseed Zhongshuang 9 was higher than that of the double-canola cultivar Zhongshuang 9, with an average yield of 2529.2kg in 3-year field trial and a harvest of 2924.4kg in 2004, the highest yield. The varieties have high fertility characteristics, that is, longer vegetative growth and rapid reproductive growth; leaf width, short stalk, sturdy neck, high single leaf area and leaf area index, high dry matter accumulation, different fertility During the period, the trend of dry matter accumulation was parabola and the flowering peaked. The root dry weight was always higher than that of Zhongyou 821 by more than 30%, and reached 50% higher by maturity. It had high yielding economic traits and reasonable yield structure. Lodging, high resistance (resistant) Sclerotinia and so on.