| Calla lily(Zantedeschia hybrida) of the unique, design and color is gorgeous, pattern form elegant, variety, has good ornamental value and economic value, is recognized as the twenty-first century "flower star", have gradually replace "ball root flowers" king of the potential of the lily. At present, our country has on plant growth regulator mechanism of Calla lily of research focus on a single hormone or a single level hormone treatment on the color of the aspect ratio of the influence of the form, and there is no different ratio of hormone level about color aspect of the growth period form, physiological aspects of research.In this experiment, the one variety Zantedeschia was studied. Effects of plant regulator on growth and development of Calla lily was studied by using orthogonal design L16(45) of GA3,6-BA,NAA and bulb soaking time. In order to provide a theory basis for plant growth regulator in the Calla Lily. The main results were as follows:(1)The plant growth regulator after processing, Calla lily of the height, cuttlefish long, pedicels, spathes caliber are increasing, explain plant growth regulator processing to improve plant ornamental quality, with200mg/L GA3+40mg/L6-BA+0mg/L NAA and soaking time15min for the best deal with the ball. Spend deformity and rate of exogenous GAS were very significant positive correlation.(2) The plant growth regulator after processing, Calla lily of the photosynthesis enhancement, Calla lily of the leaf chlorophyll a, chlorophyll b and chlorophyll a+b content in the exhibition leaf stage were increased; In a later period, chlorophyll a, b and chlorophyll content of chlorophyll a+b the decline was higher than those of control,(3) The plant growth regulator after processing, plant body soluble protein, soluble sugar content, MDA content are improved, superoxide dismutase (SOD), peroxidase (POD) activity enhanced. Plant growth regulator in eliminate super oxide free radicals, reduce lipid peroxidation and membrane damage plays a role, with200mg/L GAS+40mg/L6-BA+0mg/L NAA and soaking time15min for the best deal with the ball. Plant growth regulator in providing the plant body in carbon sources, nitrogen sources and reduce membrane injury, remove their super oxide free radicals, decomposing body oxide plays a role.(4) Plant growth regulator after treatment, the Calla lily of the resistance index in every aspect of the difference between the treatment. Through the treatment plant to the morphological and physiological and biochemical indexes of principal components analysis and correlation analysis found that chlorophyll a+b and soluble sugar content for its resistance biggest contribution. From the different growth regulator concentration ratio resilience sequence analysis to see, with200mg/L GAS+40mg/L6-BA+0mg/L NAA and soaking time15min treatment resistance is the highest.Considering that three kinds of plant growth regulator reasonable collocation, based on the bulb soaking, can improve the Calla lily aspect of the flowering characteristics, improve the ornamental value, with200mg/L GA3+40mg/L6-BA+0mg/L NAA and soaking time15min for the best deal with the ball, not only make the plant height increase Calla lily aspect, but also improved the quality of the flower, cuttlefish long increase, spathes diameter increases, comprehensive ornamental quality to achieve the best., at the same time, improve the resistance of the plant. |
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