【摘要】 为贵州观赏向日葵的理论研究及生产应用提供品种及材料基础,以引进的11个观赏向日葵品种为试验材料,比较分析引进品种在贵州的花色、花形、生育期及主要生物学性状表现。结果表明:观赏向日葵花色、花形、叶色及叶形等观赏性状类型丰富多样,11个观赏向日葵品种的全生育期变幅91～113d,变异系数3.63%;观赏期变幅11～26d,变异系数12.71%;各主要数量性状间变异系数分布在13.45%～45.89%,叶片数的变异系数最小,花朵数的变异系数最大,各品种的主要数量性状存在显著差异。初步筛选出适宜盆栽、花坛及庭院种植的观赏向日葵品种2个(晨光和阳光),适宜观赏和食用的品种2个(丽日和矮生),花瓣色彩鲜艳、花形美观具有较高观赏价值的品种4个(喜洋洋、晨光、地球漫步和墨西哥向日葵)。更多还原

【Abstract】 The difference in flower color,flower shape,growth period and main biological traits of 11 tested ornamental sunflower varieties was compared by a single-factor randomized block design to provide a reference for theoretical research and production of ornamental sunflower varieties in Guizhou.Result:There is abundance in ornamental traits of flower color,flower shape,leaf color and leaf shape in ornamental sunflower varieties.The change range in total growth period of 11 tested ornamental sunflower varieties is 91-113 dwith 3.63% variable coefficient.The change range in ornamental period of 11 tested ornamental sunflower varieties is 11-26 dwith 12.71%variable coefficient.The variable coefficient in main quantitative traits distributes from 13.45%-45.89%among 11 tested ornamental sunflower varieties.The variable coefficient of leaf number and flower number is the minimum and maximum respectively.There are significant differences in main quantitative traits among 11 tested ornamental sunflower varieties.Two ornamental sunflower varieties(Chenguang and Yangguang)for pot,flower bed and garden cultivation,two sunflower varieties(Liri and Aisheng)with ornamental and edible value and four ornamental sunflower varieties(Xiyangyang,Chenguang,Diqiumanbu and Mexican)with higher ornamental value are selected successfully.更多还原