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Effects Of Two Kinds Of Drought-resistant Chemicals Drought-resistant Index And Biochemical Characteristics And Yield And Quality Of Corn

Posted on:2008-10-22Degree:MasterType:Thesis
Country:ChinaCandidate:P LiFull Text:PDF
GTID:2143360215466671Subject:Crop Cultivation and Farming System
Abstract/Summary:PDF Full Text Request
To explore the effect mechanism of drought-resistance chemicals, by using germination experiment, solution culture and rape potted planting with corn cultivers qianxing4hao and jiaosandanjiao was conducted, the effects of two kinds of drought-resistance chemicals (ASA and FA handilong) on drought- resistant index and biochemical characteristics and yield and quality were studied. The results as followings:1,Effects of two kinds of drought-resistance chemicals through on the germination of maize by using germination experimentAfter soaking seeds, water stress condition by PEG in different penetration and analyze germination rate, germination power, seedling rate, so that to identify the effect of drought-resistance character. Studies effect of drought-resistance character of the different drought-resistance chemicals on the maize germination. drought-resistance chemicals lighten the damage to the seed of the water stress and rise germination rate,germination power. ASA and FA have good effect effects of qianxing 4 hao; ASA has observably effect to enhance the germination rate of jiaosandanjiao.2,Effects of two kinds of drought-resistance chemicals at seedlings stage of maize by using solution cultureBy the way of water circumstance in which use water after soaks seeds , water stress intimidate by PEG and identify the effect of drought-resistance chemicals based on the index of shape and physiology. Experiment is based on the change of figure of the plants which is in the phase on seedling time to identify the effect. In the experiment, the treatment enhance the area of living root absorbing areas, chlorophyll of the leaves and the content of the plant osmoticum, lowdown the MDA and exosmic electric conductivity and the damage of the water intimidate. Drought-resistance effects of FA handilong and ASA are perfect.3,Effects of two different drought-resistance chemicals on growth of maize by using rape potted plantingExperiments of garden pots showed drought-resistance chemicals can lowdown water stress damage maintains the high level of chlorophyll and photosynthesis velocity, enhancing the matter which penetrate adjustment; Renewing the water make the leaves grow better, magnify the area of leaves, also after the bearing evening it may delay the caducity. To some extent, it released the damage of dry, improve the dry matter production. The FA handilong is better than others. FA handilong has observably effect to enhance the germination rate of qianxing4hao; ASA has observably effect to enhance the germination rate of jiaosandanjiao.
Keywords/Search Tags:drought-resistance chemicals, drought-resistance character, water stress, solution culture
PDF Full Text Request
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