摘要
研究了分根区交替灌溉(APRI)和施用钾肥对亚洲型百合鲜切花质量及其瓶插期间生理变化的影响。结果表明,采收时APRI处理的切花形态指标与常规均匀灌溉(CI)之间差异不明显,但一般优于部分根干燥灌溉(PRD)。此外,APRI处理的切花寿命比CI处理延长1～1.5d。切花当天和瓶插期间APRI处理的切花百合叶片和花被片中淀粉和可溶性糖含量高于CI和PRD处理,且APRI可减缓瓶插期间鲜切花叶片中可溶性糖、淀粉含量的下降。此外,施用适量钾肥提高百合叶面积、叶片数、株高以及延长切花寿命1～1.5d;且能增加采收时鲜切花叶片和花被片中可溶性糖和淀粉含量,但降低花被片中丙二醛(MDA)含量,还可减缓瓶插期间鲜切花叶片和花被片中可溶性糖、淀粉含量的下降和MDA含量的升高。上述结果表明,分根区交替灌溉和施用钾肥有利于糖的积累,并在一定程度上减缓丙二醛的积累,这将可能延缓亚洲型黄百合切花的衰老和提高切花的品质。
Effects of alternate partial root-zone irrigation （APRI） and K application on the quality and physiological change of pot-grown Asian yellow lily （Lilium spp. ） during the period of cut flower in vase were mainly studied in this paper. Results showed that when the flowers were cut, lily morphology characteristics in APRI treatment had no significant difference from those of conventional irrigation （CI） treatment, but were better than those of partial root-zone drying （PRD） treatment. In addition, lifespan of lily fleshly cut flower in APRI treatment was 1-1.5 d more than that of CI treatment. And leaf and petal starch and soluble sugar content of lily in APRI treatment were greater than those of CI and PRD treatments, and APRI delayed the reduction of leaf starch and soluble sugar content. Moreover, applied suitable amount of K fertilizer increases leaf ares, leaf numbers, plant height of lily and prolonged cut flower lifespan of 1- 1. 5 d. Applied K increased leaf and petal starch and soluble sugar content, but reduced MDA content when the flowers were cut. In addition, K application also delayed the reduction of leaf and petal starch and soluble sugar content and the increase of leaf and petal MDA content during the period of cut flower in vase. The above-mentioned results indicate that APRI and K application are beneficial to increase the accumulation of sugar and reduce the accumulation of MDA in both leaf and petal to some extent, thus APRI and applied K may delay the senescence of Asian yellow lily freshly cut flower and increase the quality of cut flower.
出处
《北方园艺》
CAS
北大核心
2007年第3期33-38,共6页
Northern Horticulture
基金
国家自然科学基金重点项目
编号:50339030
广西大学校基金
编号:x051014
关键词
亚洲型黄百合
鲜切花
分根区交替灌溉
钾肥
质量
Asian yellow lily （Lilium spp. ）
Cut flower
Alternate partial root-zone irrigation （APRI）
K fertilizer
Quality
