CONTENTS
	DECLARATION  ................................................................................................  i
	ACKNOWLEDGEMENTS................................................................................  ii
	CONTENTS  ......................................................................................................  iii
	LIST OF TABLE  ..............................................................................................  vi
	LIST OF FIGURE  ............................................................................................  vii
	LIST OF ACRONYMS  ...................................................................................  viii
	ABSTRACT  ......................................................................................................  ix
	CHAPTER 1. INTRODUCTION  .......................................................................  1
	1.1. Introduction  .................................................................................................  1
	1.2. Objectives and requirements  ........................................................................  2
	1.2.1. Objectives  .................................................................................................  2
	1.2.2. Requirements  ............................................................................................  2
	CHAPTER 2. LITERATURE REVIEW  ............................................................  3
	2.1. Origin, distribution and classification of pumpkins ......................................  3
	2.1.1. Origin and distribution of pumpkins  .........................................................  3
	2.2.2. Classification and botanical characteristics of pumpkin  ...........................  5
	2.3. Growth and development properties of pumpkins  ........................................  6
	2.3.1. Germination period  ..................................................................................  6
	2.3.2. Seedling period  .........................................................................................  6
	2.3.3. Growth period  ..........................................................................................  7
	2.3.4. Flowering and fruiting period ..................................................................  7
	2.3.5. Old age period  ..........................................................................................  7
	2.4. Effects of environmental conditions   ...........................................................  7
	2.4.1. Effect of temperature  ................................................................................  7
	2.4.2. Effect of light  ............................................................................................  8
	2.4.3. Effect of water  ..........................................................................................  8
	2.4.4. Effects of soil and nutrients ......................................................................  8
	2.5. Nutritional values of pumpkins   ...................................................................  9 
	iv
	2.6. The method of the growing pumpkins   .......................................................  12
	2.6.1. Season  ....................................................................................................  12
	2.6.2. Sowing seeds  ..........................................................................................  12
	2.6.3. Soil  .........................................................................................................  12
	2.6.4. Fertilizer.................................................................................................  12
	2.6.5. Irrigation  ................................................................................................  13
	2.6.6. Pest and disease prevention  ....................................................................  13
	2.6.7. Harvest  ...................................................................................................  14
	2.7. Pumpkin production in the world and in Vietnam......................................  14
	2.7.1. Pumpkin production in the world  ............................................................  14
	2.7.2. Pumpkin production in Vietnam  .............................................................  17
	CHAPTER 3. MATERIALS AND METHODS  ...............................................  19
	3.1. Research materials  .....................................................................................  19
	3.2. Location and Time of research  ..................................................................  20
	3.3. Cultural practices  .......................................................................................  20
	3.4. Experimental design  ..................................................................................  21
	3.5. Trait measurements  ...................................................................................  21
	3.6. Evaluate the level of disease  ......................................................................  22
	3.7. Growth and development indicators  ..........................................................  23
	3.8. Data analysis  .............................................................................................  23
	CHAPTER IV: RESULTS AND DISCUSSION  ..............................................  24
	4.1.  Growth  and  development  time  of  the  pumpkin  accessions  in  winter 
	season 2020.  .........................................................................................  24
	4.1.1. Growth time in nursery stage of pumpkin accessions in winter season 
	2020  .....................................................................................................  24
	4.1.2. Growth time in the field of pumpkin accessions in winter season 2020   ...  26
	4.2  Seed  and  fruit  characteristics  of  pumpkin  accessions  in  winter  season 
	2020  .....................................................................................................  30
	4.3. Research results of diseases and pest infestation of pumpkin accessions 
	in winter season 2020   ...........................................................................  55 
	v
	4.4.  Yield  and  yield  components  of  pumpkin  accessions  in  winter  season 
	2020  .....................................................................................................  58
	4.5. Fruit quality of the pumpkin accessions in the winter season 2020   ............  60
	CHAPER 5. CONCLUSIONS AND SUGGESTIONS.....................................  64
	5.1. Conclusions  ...............................................................................................  64
	5.2. Suggestions  ...............................................................................................  65
	REFERENCES.................................................................................................  66
	APPENDIX  ......................................................................................................  67