施肥对南果梨花青素含量及苯丙氨酸解氨酶活性的影响

Effect of Fertilization on the Anthocyanin Content and Phenylalanine Ammonia-lyase(PAL) Activities in Nanguo Pear

通过田间试验,以南果梨树为试材,在不同的施肥处理下,研究了南果梨花青素含量与PAL活性的关系及施肥对南果梨花青素含量及PAL活性的影响,研究结果表明:在南果梨整个生育时期,PAL活性的变化与花青素的合成都有两次高峰,但它们之间无显著的相关关系;不同施肥处理对花青素含量及PAL活性的影响极其显著,施高量钾、铁肥和不施氮、磷有利于花青素含量的增加和PAL活性的提高,中量施肥水平对花青素含量及PAL活性都表现出了较好的调控效果,其花青素含量及PAL活性分别为48.95nmol/g和19.72U/(g·h),虽然花青素含量与PAL活性低于高量钾处理,但它们之间差异并不显著。

This article through the field test, has studied the Nanguo pear anthocyanin content and the PAL activity relations and effect of fertilization on the Nanguo pear anthocyanin content and .the PAL activity under different fertilization, the findings indicated： In Nanguo birth time, PAL activity change and anthocyanin synthesis change have two times of peaks, but between them hasn＇t close relationship; Different fertilization to the anthocyanin synthesis content and the PAL active influence extremely remarkable, It is advantageous to the anthocyanin content increase and the PAL active enhancement that Applied maximum potassium, iron fertilization and did not execute the nitrogen, the phosphorus. Middle fertilization treatment displays the better regulative effect to anthocyanin the content and the PAL activity, its anthocyanin content and the PAL activeness respectively were 48.95 nmol /g and 19.72 U/（g·h）, although the anthocyanin content and the PAL activity were lower than applied maximum the potassium fertilization, but between them the difference was not certainly remarkable.