Dissertation > Excellent graduate degree dissertation topics show

Study on Germination Characteris and Breeding Technology of Fritillaria Cirrhosa.Seeds

Author: HuYingYing
Tutor: YeMeng
School: Sichuan Agricultural University
Course: Forest cultivation
Keywords: Fritillaria cirrhosa enzymatic activity germination characteris breeding technology shape index
CLC: S567.231
Type: Master's thesis
Year: 2008
Downloads: 66
Quote: 0
Read: Download Dissertation

Abstract


Fritillaria cirrhosa D.Don was selected as the research material.Characteristics of seed germination and seedling cultivation of Fritillaria cirrhosa D.Don were researched in this paper.Our aim is to explore the best breeding programm with a view to provide a nursery reference value for reference to F.cirrhosa-factory system.(1) F.cirrhosa seeds was stratification in nature temperatures in 90d,the embryo form of cooked basically completed,after stratification in nature temperatures in 210d, the seed physical after ripening was complete.After 210d of natural stratification,the seed could germinate.Researches indicate that natural stratification can break F.irrhosa seed dormancy effectively and promote their germination.(2) F.irrhosa seed which without natural stratification the peroxidase,catalase and amylase activity are lower,but seeds with natural stratification the three kinds of enzyme activity have greatly increased.In stratification,the three kinds of enzyme changes as follows:after natural seed stratification in 90 d,embryo division and the form of ripening stage completed,peroxidase,catalase and amylase activity were compared with the without natural seed stratification were increased with 456%,309 %,115%,the three kinds of activity were significant upward;in 90d~210d stratification process,the seeds are in physiological ripening stage,in this course these activity was seeded rise after the drop just like the character "V".After nature of the plot in 210 d,shape seeds ripening and physiological ripening completed,the seeds begin to germinating.Seed’s peroxidase,catalase activity in starch and andamylase activity can be used as the judgement in seed dormancy and germination state.(3) F.cirrhosa seeds belong to the type of the low temperature germination.The best germination temperature is:10~15℃.(4) Through observation of seedling growth,the seedlings belong to unearthed F. cirrhosa type seedling germination.The on the ground part which seed germination after the formation of special seedlings,cotyledons greened,become the the first growing season’s only assimilation leaf.The underground part of the hypocotyls flatten,bud scales succulentten,and fomed a small bulb.It have short planting which form growing seedlings to the inverted is only four months.The first germination of seedlings in a life can only carry out photosynthesis by the cotyledons growth,so seedlings were very small.F.cirrhosa fomed the anti-adversity,short growing period, little amount of growth,small embryo,long dormant stage,low natural germination rate and other biologic traits in order to adapts the cold,ultraviolet radiation,low oxygen,low air pressure,upheaval of temperature,and other foul climate.Accoding to F.cirrhosa biology and growing character,we juged the F.cirrhosa seedlings by cotyledons-length,width bulb,the bulb length,for the whole plant growing condition.(5)Comprehend the five indicators to analysis:the seedling growing best in the growth of greenhouse nursery in the matrix model of humus,when it growth 90 d,the bulb have the width of 0.2803 cm,length of 0.3294 cm,and the whole-plant fresh weight is 1.4365 g,whole-plant dry weight is 0.3137 g.The best model portfolio is humus composed soil matrix in greenhouse seedling nursery.Humus soil’s physical and chemical indicators is:the bulk density 0.66 g/cm3,container capacity 87.37%, total porosity of 37.67%,air porosity of 13.68%,organic matter of 31.35%, hydrolysis N4466.17mg/kg,the total P1.24%,available P 467.49mg/kg,total K 2.19%,available PK 338.19mg/kg.Humus soil in this physical and chemical indexs can be used as reference data for industrial nursery matrix screening,evaluation criteria based on matrix.The optimal model for greenhouse seedling nursery,the temperature index value,light industrial index can be the value of a breeding temperature,light control design based on the reference value.Industrialized nursery temperature should be maintained at 11~15℃and within the soil temperature should be maintained at 12~16℃range.(6) Composed varityies of soil depth,we conclude 1 cm soil depth is the best nursery soil depth.

Related Dissertations

  1. The Occurrence of Lysiphlebus fabarum Marshall in Soybean Field and Its Feeding Technology,S476.3
  2. Molecular Cloning and Characterization of Dihydrolipoamide Dehydrogenase Gene in the Silkworm, Bombyx Mori,Q78
  3. The Growth and Declining of Soil Microbe Amount in Root Zone and Their Influence to the Plant Replantation in the Apple Orchard of Loess Plateau,S661.1
  4. Studies on Fritillaria Cirrhosa D.Don and Its Effects of Antitusis and Antiasthma,R285.5
  5. Biochemical and Physiological Research of Cultured Fritillaria Cirrhosa D.Don during Bulb Organogensis and Development,S567.2
  6. Studies on Biology and Artificial Rearing Technology of Myreleon Formicarious Linnaeus,S899.9
  7. The Application of Evaluation System of Chinese Outstanding High Jump Sportswomen’s Special Qualities to the Quantitative Monitoring Method in the Mode Training,G823
  8. Cephalometric Analysis of Index of Condylar Shape Based on the Mandibular of Condylar Hyperactivity and Its Clinical Significance,R816.98
  9. The Establishment of Standardized Program for Small and Medium-scale Pig Production Technology,S828
  10. The Research on Propagation Techniques of Laurocerasus Hypotricha,S792.99
  11. Prokaryotic Expression and Secretory Character of Oxalate Decarboxylase from A. Tumefaciens C58,Q78
  12. Cloning and Characterization of Glutamine Synthetase Genes in Melon,S652
  13. The Research on the Functional Difference among Different Species of Chuan Fritillaria in Relieving Cough and Resolving Phlegm,R285.5
  14. On the Evolution Characters and Influencing Factors of Huaihua Urban Morphology,C912.81
  15. Study on Production and Properties of Chitinase from Nouraea Rileyi Strain CQ031021,S476.1
  16. The Effect of Digestive Enzymes and Small Intestine Villi Morphology of Different Supplementary Feeding Age for Growth of Piglets,S828
  17. Study on Enzymatic Activities in an Anaerobic-Anoxic-Aerobic System,X703
  18. Determination and Histochemical Localization of Alkaloids Content in Wild and Tissue Cultured Fritillaria Cirrhosa D. Don,S567.231
  19. Experiment and Study on the Technologies for Breeding Superfine Wool Sheep Strain in High & Cold Region,S826
  20. Control and the Resistant Mechanism of Fermentation Broth of Men-myco-93-63 Against Cucumber Powdery Mildew,S436.421

CLC: > Agricultural Sciences > Crop > Economic crops > Medicinal crops > Herbal > Perennial > Fritillaria
© 2012 www.DissertationTopic.Net  Mobile