摘要
为明确影响西藏春青稞β-葡聚糖含量的农艺措施，采用三因素五水平二次旋转回归组合设计，以播期、底肥施用量、追穗肥时期三因子为研究对象，对来自西藏日喀则、林芝、昌都、山南地区的春青稞品种喜马拉雅19、藏青320、康青3号、山青24，进行不同农艺措施对β-葡聚糖含量的栽培试验。结果表明，各试验因素对西藏春青稞品种β-葡聚糖含量的影响依次为播期〉底肥施用量〉追穗肥时期；因子间互作效应分析表明，播期和底肥施用量是影响西藏春青稞β-葡聚糖含量的关键因素。四个品种最佳农艺措施方案分别为喜马拉雅19：播期4月8-10日，底肥施用量220-263 kg/ha，追穗肥时期6月27日-7月2日；藏青320：播期4月11-15日，底肥施用量244-281 kg/ha，追穗肥时期6月25日-7月2日；康青3号：播期4月7-11日，底肥施用量206-244 kg/ha，追穗肥时期6月28日-7月2日；山青24：播期4月6-10日，底肥施用量218-261 kg/ha，追穗肥时期6月27日-7月2日。
The effect of base and dressing fertilizer rates,and sowing date on β-glucan content of Tibetan naked barley was investigated using an experiment of quadratic rotary regression design with four varieties of Ximalaya 19,Zangqing 320,Kangqing 3 and Shanqing 24.The results showed that the order of the factors affecting β-glucan content of Tibet naked barley was sowing date,base fertilizer rate and dressing fertilizer date,respectively.The interaction between sowing date and base fertilizer rate had the largest influence on β-glucan content.The optimum schemes of the three agronomic factors for the maximum β-glucan content were as follows： for Ximalaya 19,sowing date is from April 8 to April 10,base fertilizer date is 220-263 kg/ha,dressing fertilizer date is from June 27 to July 2;for Zangqing 320,sowing date is from April 11 to April 15,base fertilizer rate is 244-281 kg/ha,dressing fertilizer rate is from June 25 to July 2;for Kangqing 3,sowing date is from April 7 to April 11,base fertilizer rate is 206-244 kg/ha,dressing fertilizer rate is from June 28 to July 2;for Shanqing 24,sowing date is from April 6 to April 10,base fertilizer rate is 218-261 kg/ha,dressing fertilizer date is from June 27 to July 2.
出处
《麦类作物学报》
CAS
CSCD
北大核心
2008年第5期888-892,共5页
Journal of Triticeae Crops
基金
国家自然科学基金资助项目(30660080)
教育部科学技术研究重点项目(207113)
关键词
西藏青稞
播期
底肥用量
追肥时期
Β-葡聚糖含量
Tibetan naked barley
Sowing date
Base fertilizer rate
Dressing fertilizer date
β-glucan content
