【摘要】 以秋黄切菊花为材料,研究了不同供钾水平对菊花体内物质运转和品质的影响。试验结果表明:三种不同供钾水平(K₁30mg·L^-1,K₂20mg·L^-1,K₃400mg·L^-1),K₂处理株高、花茎、花枝鲜重及花序干物重在盛花期明显优于 K₁和 K₃;K₁处理因供钾不足,菊花株高增长缓慢,蕾期、盛花期分别比 K₂和 K₃延迟2d 和1d;K₃因供钾水平过高,反使体内糖分、钙、镁和干物质的累积速率低于 K₂,糖分累积比 K₂延长了6d,但有利于延缓菊花的衰老、茎增粗及脚叶养护。更多还原

【Abstract】 This paper discusses the effects of different amount of K(K₁ 30 mg K·L^-1,K₂ 200 mg·L^-1,K₃ 400 mg·L^-1)on chrysanthemum growth and quality.It is found that supply 200 mg·L^-1chrysanthemum results in high plant,large flower and dry matter content.Chrysanthemum supplying with 30 mg·L^-1grows slowly,and its budding and flowering stage delays for 2 and 1 day comparing with supplying 200 and 400 mg·L^-1re- spectively.The plant growing in 400 mg·L^-1shows that accumulation rate of Ca,Mg, carbohydrates and dry matter than that in K₂.Its carbohydrates accumulation time lasts 6 days longer than that of K₂.However,the plant with K₃ has a large stem and alive low leaves,and its flower last longer than K₁ and K₂.更多还原