Basic and Applied Aspects of Seed Biology: Proceedings of the Fifth International Workshop on Seeds, Reading, 1995 (Current Plant Science and Biotechnology in Agriculture, 30)

The Fifth International Workshop on Seeds was held at the University of Reading, UK, from 10 to 15 September, 1995. Some 230 seed scientists, from a wide range of disciplines (botanists, biochemists, ecologists, agriculturalists, foresters, and commercial seedsmen), from 31 countries (Europe, the Americas, and Asia) participated in the workshop. A large number of oral and poster presentations was made during the workshop and we are pleased to publish so many of them in these Proceedings. The papers herein are listed by the sessions in which they were presented but, as is often the case, many papers cover a broader range of topics than the session titles imply. For seed physiologists, ecologists, and technologists, this book collates much of the current research on seeds. Front Matter....Pages i-xxv Desiccation Tolerance and Long Term Structural Stability....Pages 1-12 Desiccation Tolerance in Immature Embryos of Maize: Sucrose, Raffinose and the ABA—Sucrose Relation....Pages 13-22 DNA Status, Replication and Repair in Desiccation Tolerance and Germination....Pages 23-32 The Role of Protein Biotinylation in the Development and Germination of Seeds....Pages 33-43 The Effect of Harvest Time and Drying on Dormancy and Storability in Beechnuts....Pages 45-51 Post-transcriptional Regulation of Storage Protein Synthesis during Early Embryogenesis....Pages 53-61 Choice of the Matrix for Encapsulating and Dehydrating Carrot Somatic Embryos: Importance of the Rheology, the Desorption and the Diffusion Parameters....Pages 63-73 Cryopreservation of Somatic Embryoids of Phoenix dactylifera ....Pages 75-82 Patenting in the Seed World....Pages 83-90 From Encapsulated Somatic Embryo to Plantlet Regeneration....Pages 91-94 Raffinose Series Oligosaccharides and Desiccation Tolerance of Developing Viviparous Maize Embryos....Pages 95-101 Morphological and Physiological Changes Associated with Desiccation in Maize Embryos....Pages 103-111 Fertilization and Seed Formation of Cyclamen persicum Mill....Pages 113-118 Galactosyl Cyclitols and Raffinose Family Oligosaccharides in Relation to Desiccation Tolerance of Pea and Soyabean Seedlings....Pages 119-128 Maternal Effects on Callistephus chinensis Seed Yield and Quality....Pages 129-135 The Influence of JA-Me and ABA on Induction of Somatic Embryogenesis in Medicago sativa L. Tissue Cultures....Pages 137-140 Ultrastructural and Chemical Characterization of Bulnesia Seeds....Pages 141-152 Role of Acyltransferases in the Effect of ABA and Osmoticum on Oil Deposition during Seed Development....Pages 153-158 The Phytochrome Family and their Roles in the Regulation of Seed Germination....Pages 159-171 The Effect of Molybdenum on Seed Dormancy....Pages 173-180 Moisture Content Controls the Effectiveness of Dormancy Breakage in Abies nordmanniana (Steven) Spach Seeds....Pages 181-190 Primary Dormancy in Tomato. Further Studies with the sitiens Mutant....Pages 191-201 Seed Dormancy and Responses of Seeds to Phytohormones in Nicotiana plumbaginifolia ....Pages 203-214 ABA Involvement in the Psychrolabile Dormancy of Fagus Embryo....Pages 215-224 Abscisic Acid-Mediated Responses in Seeds Involving Protein Kinases and Phosphatases....Pages 225-233 Dormancy in Sitka Spruce Seeds....Pages 235-244 The Influence of Embryo Restraint During Dormancy Loss and Germination of Fraxinus excelsior Seeds....Pages 245-253 Molecular Changes Associated with Dormancy-breakage in Douglas Fir Tree Seeds....Pages 255-260 The Involvement of Microbes and Enzymes in the Pretreatment of Woody Seeds to Overcome Dormancy....Pages 261-267 Dormancy Breaking and Short-term Storage of Pretreated Fagus sylvatica Seeds....Pages 269-278 Germination Requirements and Dormancy in Festuca gigantea (L.) Vill. Populations....Pages 279-287 QSAR Modelling of Dormancy-Breaking Chemicals....Pages 289-295 Natural Far Red Irradiation and Weed Seed Persistence in the Soil....Pages 297-302 Effect of Ethephon on Dormancy Breaking in Beechnuts....Pages 303-309 Endogenous Gibberellins and Dormancy in Beechnuts....Pages 311-321 Molecular Approach to the Role of ABA and GA 3 in the Dormancy of Fagus sylvatica Seeds....Pages 323-333 Controlled Stratification of Prunus avium L. Seeds....Pages 335-338 Studies on the Persistence of Rape Seeds ( Brassica napus L.), Emphasizing their Response to Light....Pages 339-347 The Hydrotime Concept in Seed Germination and Dormancy....Pages 349-360 A Statistical Perspective on Threshold Type Germination Models....Pages 361-368 Accumulation of Seed Vigour During Development and Maturation....Pages 369-384 Translation of Ribosomal Protein mRNAs in Maize Axes....Pages 385-394 Cell Cycle Analysis in Dormant and Germinating Tomato Seeds....Pages 395-402 Regulation of an α-Type DNA Polymerase Activity During Maize Germination....Pages 403-412 DNA Integrity and Synthesis in Relation to Seed Vigour in Sugar Beet....Pages 413-420 Ethanol, a Respiratory By-product: An Indicator of Seed Quality....Pages 421-427 Semipermeable Layer in Seeds....Pages 429-436 Stress, Protein Biosynthesis and Loss of Vigour and Viability in Cereal Seed....Pages 437-449 Priming-induced Nuclear Replication Activity in Pepper ( Capsicum annuum L.) Seeds. Effect on Germination and Storability....Pages 451-459 Induction of Desiccation Tolerance in Germinated Impatiens Seeds Enables Their Practical Use....Pages 461-467 Osmotic Relations and Cell Wall Acidification as the Prerequisites of the Start of Elongation in the Seed Axial Organs....Pages 469-477 Ultrastructure of Solid Matrix-Primed Endospermic and Nonendospermic Seeds....Pages 479-487 The Molecular Mechanism of Seed Deterioration in Relation to the Accumulation of Protein—Acetaldehyde Adducts....Pages 489-498 Structural and Biochemical Changes in the Plasma Membrane from Dry and Imbibed Embryos....Pages 499-505 Comparison of the Storage Potential of Soyabean ( Glycine max ) Cultivars with Different Rates of Water Uptake....Pages 507-513 Changes in Sucrose, Cyclitols and their Galactosyl Derivatives with Seed Ageing....Pages 515-522 The Role of Methyl Jasmonate in Germination of Amaranthus caudatus L. Seeds....Pages 523-529 Biochemical Events after Priming and Osmoconditioning of Seeds....Pages 531-536 Sinapine Leakage for Detection of Seed Quality in Brassica ....Pages 537-545 Temperature and the Rate of Germination of Dormant Seeds of Chenopodium album ....Pages 547-553 Hydration up to Threshold Levels as the Triggering Agent of the Processes Preparing Germination in Quiescent Seeds....Pages 555-562 A Cysteine Endopeptidase (SH-EP) in Germinated Vigna mungo Seeds: Post-translational Processing and Intracellular Transport....Pages 563-568 Alleviation of Chilling Injury by Ethephon in Pea Seeds....Pages 569-576 Flow Cytometric Analysis of Sugar-Beet Seeds Different in Vigour....Pages 577-584 Effect of Elevated Temperatures during Grain Development on Seed Quality of Barley ( Hordeum vulgare L.)....Pages 585-592 Relationship between Standard Germination, Accelerated Ageing Germination and Field Emergence in Soyabean....Pages 593-600 Gene Expression During Maize Seed Germination....Pages 601-610 Genotypic, Phenotypic and Opportunistic Germination Strategies of Some Common Desert Annuals Compared with Plants with Other Seed Dispersal and Germination Strategies....Pages 611-622 Comparative Ecophysiology of Seed Germination Strategies in the Seven Pine Species Naturally Growing in Greece....Pages 623-632 Germination of Orobanche Seeds: Some Aspects of Metabolism during Preconditioning....Pages 633-639 Ecophysiology of Seed Germination in Composites Inhabiting Fire-prone Mediterranean Ecosystems....Pages 641-649 SEED: A Computer-Assisted Learning Package on Seed Longevity....Pages 651-655 Free Radicals in Seeds — Moving the Debate Forward....Pages 657-663 Changes in Superoxide Dismutase, Catalase and Glutathione Reductase Activities in Sunflower Seeds during Accelerated Ageing and Subsequent Priming....Pages 665-672 The Response of Hydrated Recalcitrant Seeds to Long-Term Storage....Pages 673-687 Progress in the Understanding and Manipulation of Desiccation-Sensitive (Recalcitrant) Seeds....Pages 689-703 Heat Stable Proteins and Desiccation Tolerance in Recalcitrant and Orthodox Seeds....Pages 705-713 Cellular and Metabolic Events Associated with Dehydration of Recalcitrant Araucaria angustifolia Embryos....Pages 715-721 Freezing Stress, Osmotic Strain, and their Viscoelastic Coupling....Pages 723-735 Characterization of Intracellular Glasses in Bean Axes with Relevance to Storage Stability....Pages 737-746 DNA Extraction from Dry Seeds for RAPD Analyses....Pages 747-753 Some Aspects of the Biological Control of Seed Storage Fungi....Pages 755-764 Preservation of Quercus robur L. Embryonic Axes in Liquid Nitrogen....Pages 765-769 Desiccation Tolerance and Cryopreservation of Embryonic Axes of Recalcitrant Species....Pages 771-776 Studies of Hot Water Treatments for Curtailing Seed-Associated Mycoflora....Pages 777-785 Behaviour of Membranes and Proteins during Natural Seed Ageing....Pages 787-796 Effect of Cryopreservation on Seed Germination of Different Leguminosae Species....Pages 797-802 Changes of Carbohydrate Contents During Natural and Accelerated Ageing of Some Vegetable Seeds....Pages 803-808 Light Promotes Free Radical Accumulation in Ageing Soyabean Seeds....Pages 809-815 Cryopreservation of Seeds and Embryonic Axes of Several Citrus Species....Pages 817-823 Back Matter....Pages 825-826