The Research On Configuration Physiology And Florescence Regulation Of Chrysanthemum "Cha Zi Yan Hong" By Different Xenobiotics

With different concentrations (1000,2000and4000mg·L^-1) KDP （KH₂PO₄）, in varieties ofchrysanthemum "Cha Zi Yan Hong" from the first stage to bud appeared of all strains were sprayprocessing, spraying the same amount of distilled water as contrast. When the plant is in the bud stage, withconcentration, respectively, for5,10and20mg·L^-1kinetin （KT） aqueous solution, the treated withKH₂PO₄spray chrysanthemum plants before crossover design method is adopted to improve the greyprocessing, namely each spray treatment concentration groups were set up three concentration gradient ofKT. Determination of the treatment group and control group bud stage leaves and petals blooming ofphysiological and biochemical changes, and to observe, record, analysis the date of flowering, flowerdiameter size and the changes in the flowering duration. The results showed that:1. Chrysanthemum varieties of " Cha Zi Yan Hong " treated with different concentrations of KH₂PO₄,photosynthetic pigment, soluble protein, soluble sugar content and superoxide dismutase （SOD）,peroxidase （POD）, nitrate reductase （NR） activity were compared with varying degrees of increase in thebud stage leaves, the blade of superoxide anion （O—2） producing rate decreased compared with the control.With the concentration of2000mg·L^-1treatment group effect is best.2. Chrysanthemum varieties of " Cha Zi Yan Hong " by KT wipe bud treated, the soluble sugar,soluble protein content in the petals blooming, SOD and POD vigor in flowering petals compared has adifferent degree of increase, four groups of cross processing to10mg·L^-1KT processing group promotioneffect is largest.3. Chrysanthemum varieties of " Cha Zi Yan Hong " by KT wipe bud treated, in the four groups ofcross,5and10mg· L^-1O—2generation rate in the treatment group of petals, the content of MDA, andpetals leaching liquid of conductivity value is lower than the control group, including10mg·L^-1treatmentgroup the most value lower.4. Chrysanthemum varieties of " Cha Zi Yan Hong " by the different concentrations of KT with bud,after its have different range of early or late flowering time, fade time also has different change, most of the processing groups time increased. The effect of1000mg·L^-1KH₂PO₄+10mg·L^-1KT cross treatmentgroup is best, compared with the control group of early flowering time for3d, flower fade time delay for2d, so the treatment group than the control group spend life and flowering duration increased5d; And4000mg·L^-1KH₂PO₄+20mg·L^-1KT cross treatment group than the control group of flowering time is delayedby2d, but compared with the control, flowering duration had no obvious change.5. Chrysanthemum varieties of " Cha Zi Yan Hong " in the2000mg·L^-1and its followingconcentrations of KH₂PO₄with various concentrations of KT process, the size of the flower diameterincreased in varying degrees, with2000mg·L^-1KH₂PO₄+10mg·L^-1KT of cross processing group worksbest. But when the KH₂PO₄solution concentration is as high as4000mg·L^-1for size of flower diameterhas had a negative effect.Chrysanthemum varieties of " Cha Zi Yan Hong " pre-spray to the appropriate concentration ofKH₂PO₄leaves in growth prophase, leaf metabolic activity can be strengthened, increased accumulation ofnutrients, to established the material foundation for the flowering; In the bud stage with KT processing, canmake the whole of the chrysanthemum ornamental prolonged, optimization flowers type. Therefore,KH₂PO₄and KT in the proper combination of different growth stages, can significantly extend thechrysanthemum "Cha Zi Yan Hong" varieties of viewing time, increase the ornamental value.