摘要
The effect of vernalization and two growth regulators Fascination^TM and Pro-Gibb^R on the growth, inflorescence development and flowering of Omithogalurrt Chesapeake Snowflake＇ was studied. Regardless of growth regulator treatment, chilling bulbs for 3 weeks at 10℃ before planting accelerated flowering of the first inflorescence by 5 to 6 days, elongated floral stem length by 1.5 to 2 cm and shortened leaf length by 4 to 5 cm as compared with non-chilled bulbs. When bulbs were chilled 3 weeks at 10℃ before planting, Fascination 2% and Pro-Gibb accelerated flowering of the first inflorescence by 2 to 6 days respectively as compared with the control. When bulbs were not chilled before planting, Fascination 2% and Pro-Gibb accelerated flowering of the first inflorescence by 6 to12 days respectively as compared with the control. The lengths of the leaves and the inflorescences were not affected by PGR treatment. Higher rates of Pro-Gibb （100 mg.L^-1 and 200 mg.L^-1） and more amount of Fascination 2%（100 μL and 200 μL） can cause abortion of inflorescence.
通过施加植物生长调节剂和春化处理,对Ornithogalum‘ChesapeakeSnowflake’植株的生长、花序发育和开花进行了研究。不施加植物生长调节剂,栽植前对鳞茎进行3周的10?C低温处理,与对照相比,第一个花序的开花时间提前5～6天,花茎长度增加1.5～2cm,叶长度缩短4～5cm。对栽植前通过3周10?C低温处理的鳞茎,2%Fascination?和Pro-Gibb使第一个花序开花提前2～6天;对栽植前没有通过3周10?C低温处理的鳞茎,2%Fascination?和Pro-Gibb使第一个花序开花提前6～12天。叶和花序的长度不受高级差的Pro-Gibb(100mg·L-1and200mg·L-1)的影响,高剂量的2%Fascination(100μLand200μL)能导致花序败育。
