Dissertation > Excellent graduate degree dissertation topics show

Preliminary Study on Biology Mechanism of Grafting Early in Cucumber

Author: HuYanQing
Tutor: CuiShiMao
School: Inner Mongolia Agricultural University
Course: Olericulture
Keywords: Cucumber Grafting Hormonet Anatomy structure survival rate
CLC: S642.2
Type: Master's thesis
Year: 2008
Downloads: 162
Quote: 1
Read: Download Dissertation

Abstract


Using black seed pumpkin as root stock,and cucumber cultivar Jinyou 4 as scions, grafting was made to compare the differences anatomical form and structure,activities of membrane protective enzymes,stem IAA、GA and ABA contents and stem soluble protein components between grafted and self-root cucumber,and physiological mechanism of grafting superiority was discussed.The result showed as following:1 The cucumber grafted processes included the emergence of septum,the formation and docking of calli,the formation of vascular bridges,and the differentiation and connection of conduction tissues.After grafted,the septum appeared on cross-section at the 1st-3rd day;the calli set up and both the sides of calli began to contact each other and the septum was disappeared gradually at the 5th-6thday;the calli began to set up and vascular bridges set up at the 7th-8thday;vascular tissues began to set up and contact each other at the 11thday,then the whole reunion process was over.2 The activity of SOD,POD,CAT in the grafting the cucumber have always been higher than that of self-root cucumber.It illustrated that it has strong activity of membrane protective enzymes and stronger ability of resistance membrane lipid peroxidation to maintain its strong growth.3 The soluable protein contents of self-root cucumber and self-root were basically higher than those of healing grafting,and decreased with the growing days.The content of soluble protein was decreased firstly and then increased in early days of grafting.4 The content of IAA、ABA and GA at various measuring stages of grafted cucumber were significantly different from those of self-root cucumber.The content of IAA,ABA was increased firstly and then decreased,and its contents reached to maximum at the 4th day and 5th day,and the content of GA was decreased firstly and then increased,it reached to minimum at the 6thday.Since the IAA self-root Cucumber was always higher than in the healing of the graft,while the ABA is in the opposition,it reached to minimum at the 4thday.5.Through three hormone NAA,6-BA,KT deal with the grafted seedlings,the grafted cucumber were in the best treatment at 1.5 mg / L concentration of grafting,while 6-BA is the best in three hormones.It can improve the grafting survival rate by the appropriate combination of hormone and grafting extracts treatment cucumber scion.

Related Dissertations

  1. Resource Collection and Vegetative Propagation Technique Studies on Ilex Species,S184
  2. Effects of Temperature, Salinity, Dissolved Oxygen, Ammonia-N and Nitrite-Non the Molting of Scylla Paramamosain,S917.4
  3. Hydrophilic structure of different types of surface -modified polyurethane material and coagulation 12 factor nine peptide fragments,and fibrinogen P1 fragment of computer simulation of the interaction,O631.3
  4. Studies on the Resistance Induced by β-Aminobutyric Acid Against of Pseudoperonospora Cubensis in Cucumber and Its Resistant Mechanism,S436.421
  5. Study on Inheritance and Molecular Markers of Resistance to the Root-Knot Nematode (Meloidogyne incognita) in Cucumber Introgression Lines,S436.421
  6. Screening of Molecular Markers for Downy Mildew Resistance Introgression Line of Cucumis Hystrix-C. Sativus and Analysis of Programmed Cell Death,S436.421.11
  7. Studies on Shoot Treating and Top Grafting Technique for Replacing Cultivar of Pear Tree,S661.2
  8. Isolation, Expression, SSR Marker Analysis of Genes Related to Parthenocary of Cucumber,S642.2
  9. Research on Container Nursery and Grafting Techniques of Carya Illinoensis,S664.1
  10. Study on Characteristics of Morphology Anatomy and Physio-Biochemistry of Two Ecotype Varieties Cucumber Leggy Seedilings,S642.2
  11. Studies on the Appliction of Organic Nitrogen Fertilizers to Soilless Culture in Cucumber,S642.2
  12. Effect of Modes of Ridge and Nutrient Solution Irrigation on Cucumber Cultivation and Transport of Water and Salt in Soil,S642.2
  13. The Application of Different Particle Size Peanut Shell Added by Wetting Agent and Nutrient Solution in Cucumber Nursery,S642.2
  14. Preliminary Study on the Fertility Performance of Cucumis Hytivus Chen and Kirkbride and Breeding of Gynoecious Cultivated Lines,S642.2
  15. Study of Mitigative and Physiological Effects by Arbuscular Mycorrhiz Fungi in Cucumber Plants under Salt Stress,S642.2
  16. Effects of the Double-Stock Grafting on the Physiological Characteristics, Yield and Quality of Cucumbers,S642.2
  17. Effects of Different Rootstock Grafting on Yield, Quality and Seedling Calcium Chloride Tolerance in Tomatoes,S641.2
  18. Effects of Exogenous Spermidine on CO2 Assimilation and Metabolism of Salt-Stressed Cucumber Seedlings,S642.2
  19. Crop Growth Model-Based Decision Support System for Greenhouse Cucumber Nitrogen Management,S642.2
  20. Quantifying the Effects of Nitrogen on Fruit Growth and Economic Yield of Fruit Cucumber in Greenhouses,S642.2
  21. Effects of Optimized Main Environmental Factors at Broilers Raising and Scutellaria Baicalensis on Production Performance of Three Yellow Broilees,S831.5

CLC: > Agricultural Sciences > Gardening > Vegetable gardening > Melons > Cucumber
© 2012 www.DissertationTopic.Net  Mobile