播期和种植密度对伊犁地区向日葵黑茎病及白锈病发生的影响  

Effect on different sowing date and planting density to black stem disease and white rust disease occurred in sunflower in Yili prefecture, Xinjiang

作　　者：陈卫民[1] 马福杰 荆珺[1] 王杰花 

机构地区：[1]新疆伊犁职业技术学院,新疆伊宁835000 [2]新疆新源县农业技术推广站

出　　处：《植物检疫》2014年第5期51-54,共4页Plant Quarantine

基　　金：新疆科技厅科技成果转化专项资金项目(201454101);国家自然科学基金(30960217);国家质检总局科技计划项目(2011IK168)

摘　　要：以向日葵油用型品种S606为试验材料,在自然发病条件下,2012~2013年连续两年在新疆伊犁地区新源县种植不同播期和不同密度的向日葵,通过调查向日葵发病情况,研究不同播种时期和不同种植密度对检疫性新病害――向日葵黑茎病、白锈病发生的影响。结果表明新疆伊犁地区向日葵最佳种植时间为5月中旬,此期间播种的向日葵产量较高,黑茎病病情指数较低;播期与白锈病的发生程度未见相关性。伊犁地区向日葵最佳种植密度为株距30 cm,行距50 cm（4500株/667m2）,此密度下种植的向日葵产量较高,白锈病病情指数较低;种植密度与黑茎病的发生程度未见相关性。In this paper, as experimental material, Sunflower oil varieties S606 was planted with different sowing date and planting density from 2012 to 2013 in Xinyuan county, Yili prefecture, Xinjiang. It was investigated by the incidence of sunflower black stem and white rust disease under natural infection conditions, and analyzed effect on two kind of quarantine new disease through experiment of different sowing date and different planting density. It was concluded the best sowing date of sunflower is at the middle of May. During the period, the sunflower yield was higher and the index of black stem disease was lower, and occurrence degree of white rust disease was no correlation with sowing date. The best planting density of sunflower is row spacing 30 cm, line spacing 50 cm （4500 plant per 667m2）. Within the density, sunflower yields was higher and the index of white rust disease was lower, and occurrence degree of black stem disease was no correlation with planting density.

关 键 词：向日葵 播期 种植密度 黑茎病 白锈病 

分 类 号：S435.655[农业科学—农业昆虫与害虫防治]