목차

CONTENTS
Abstract I
List of figures VII
List of tables IX
List of abbreviations X
Chapter 1
General Introduction…………………………………………………………….1
Chapter 2
Exp. 1: Optimization of potato tuber harvesting by analyzing growth, development, and
partitioning in two planting time growing in the aeroponic system
2.1 Introduction 4
2.2 Materials and Methods
2.2.1 Plant Material and Growing Conditions 5
2.2.2 Growing area………………………………………………………………………6
2.2.3 Growing nutrient solutions 7
2.2.4 Transplantation times 7
2.2.5 Growth response 7
2.2.6 Plant photosynthetic pigments 7
2.2.7 Dry matter content(%) 8
2.3 Result
2.3.1 Analysis of plant growth response 10
2.3.2 Analysis of shoot, root and stolon dry matter content……………………………11
2.3.3 plant photosynthetic pigments ……………………………………………….….14
2.3.4 Tuber yield 50 DAT…………………………………………………………...…15
2.3.5 Tuber grading 50 DAT………………………………………………………….16
2.3.6 Tuber yield 70 DAT…….……………………………………………………….17
2.3.7 Tuber grading 70 DAT…………………………………………………………..19
2.3.8 Tuber yield 90 DAT……………………………………………………………..20
2.3.9 Tuber grading 90 DAT…………………………………………………….……22
2.4 Discussions
2.4.1 plant growth response…………………………………………………………………23
2.4.2 plant dry matter content……………………………………………………………….23
2.4.3 Plant photosynthetic pigments………………………………………………………...24
2.4.4 Tuber yield…………………………………………………………………………….24
Chapter 3
Exp: Analysis of the effect of the chemical application on potato tuber yield
3.1 Introduction……………………………………………………………………………………25
3.2 Materials and methods
3.2.1 Plant Material and Growing Conditions ………………………………………………..27
3.2.2 Experimental treatments………………………………………………………………...27
3.2.3 Nutrients solutions…………………………………………………………………….…27
3.2.4 Growth Response………………………………………………………………………..27
3.2.5 Plant photosynthetic Pigments……………………………………………………………27
3.2.5 Determination of net photosynthetic rate, transpiration rate, stomatal conductance, and The photosynthetic water use efficiency……………………………………………………………28
3.2.6 Determination of total soluble carbohydrate and total soluble sucrose content…………28
3.3 Result and discussion
3.3.1 Plant morphological characteristics………………………………………………………29
3.3.2 Plant photosynthetic pigments……………………………………………………………30
3.3.3 Plant photosynthetic and transpiration rate……………………………………………….31
3.3.4 Plant stomatal conductance, and water use efficiency……………………………………32
3.3.5 Plant total soluble carbohydrate and total soluble sugar content………………………….33
3.3.6 Tuber yield………………………………………………………………………………...34
Chapter 4
Exp. 2: Potato mini tuber seed production under low light-emitting Diodes (LEDs) in
substrate soil and green-house conditions
4.1 Introduction…………………………………………………………………………….35
4.2 Materials and Methods
4.2.1 Light-emitting diode (LEDs) settings 37
4.2.2 Plant materials and growth conditions … 38
4.2.3 Determination of plant growth characteristics 38
4.2.4 Photosynthetic pigments 38
4.2.5 Determination of sucrose and total carbohydrate content 38
4.3 Result
4.3.1 Effect of light-emitting diodes (LEDs) on plant growth 41
4.3.2 Effect of light-emitting diodes (LEDs) on plant photosynthetic pigments 43
4.3.3 Effect of light-emitting diodes (LEDs) on plant secondary metabolites ….……..44
4.3.4 Effect of LEDs light on tuber yield………………………………………………44
4.4 Discussion………………………………………………………………………………….45
Chapter 5
Exp. 3: Light Emitting Diodes(LEDs) pre-treatment on potato seed tuber production in an
aeroponic system
5.1 Introduction 47
5.2 Materials and Methods
5.2.1 Light-Emitting Diode (LED) Settings 49
5.2.2 Plant materials and growth conditions … 50
5.2.3 Plant growing nutrients under LEDs light……………………………………….50
5.2.4 Effect of LEDs light on plant growth 50
5.2.5 Effect of LEDs light on plant photosynthetic pigment 50
5.2.6 Effect of LEDs light on plant secondary metabolites content 51
5.2.7 Analysis of tuber yield 51
5.3 Result
5.3.1 Effect of LED lights on potato plant growth in the aeroponics system………….53
5.3.2 Effect of LED lights on Chlorophyll and carotenoids content in potato plants in the aeroponics system 54
5.3.3 Effect of LED lights on secondary metabolites in potato plants and tuber in the aeroponics system ……………..……...……………………………………….…55
5.3.4 Effect of different LEDs Lights on potato tuber yield in the aeroponic system …………………………………………………………………………..………. 56
5.4 Discussion………………………………………………………………………………56
Chapter 6
Conclusion 59
Chapter 7
References…………………………………………………………………………………60
List of Figures
Chapter 1
Fig 1: The photograph of potato seed production in the aeroponic culture system……….1
Fig 2: Potato seed production under LED light……………………………………………2
Chapter 2
Fig 3: 50 DAT shoot, root, stolon dry matter content in different growing times, and locations,
location 1(A,B) and location 2 (C,D)……………………………………………………...10
Fig 4: 50 DAT Tuber Yield in different growing times and locations, location 1(A,B) and location 2 (C,D)…………………………………………………………………………....15
Fig 5: 50 DAT Tuber Grading in different growing times and locations, location 1(A,B) and location 2 (C,D)……………………………………………………………………………16
Fig 6: 70 DAT Tuber Yield in different growing times and locations, location 1(A,B) and location 2 (C,D)……………………………………………………………………………17
Fig 7: 70 Tuber Grading in different growing times and locations, location 1(A,B) and location 2 (C,D)…………………………………………………………………………….19
Fig 8: 90 DAT Tuber Yield in different growing times and locations, location 1(A,B) and location 2 (C,D)…………………………………………………………………………….20
Fig 9: 90 Tuber Grading in different growing times and locations, location 1(A,B) and location 2 (C,D)…………………………………………………………………………….22
Chapter 3
Fig 10. Effect of foliar application of chemicals on morphological characteristics of potato………………………………………………………………………………………29
Fig 11: Effect of chemicals application on photosynthetic pigments……………………..30
Fig 12. Effect of chemicals application on photosynthetic and transpiration rate……..….31
Fig 13. Effect of chemicals application on stomatal conductance and water use efficiency………………………………………………………………………………….32
Fig 14. Effect of chemicals application on total soluble carbohydrate content and total soluble sugar content…………….………………………………………………………..33
Fig 15. Effect of chemicals application on potato tuber yield…………………………....34
Chapter 4
Fig 16: Effect of LEDs light treatment on the Total carbohydrate content and sucrose content of potato plants in greenhouse condition. …………………………………………………43
Fig 17: Effects of LEDs light on the yield of potato tubers...................................................44
Chapter 5
Fig 18: Effect of LED lights on Chlorophyll and carotenoids content in potato plants in the aeroponic system……………………………………………………………….………….54
Fig 19: Effect of LED lights on secondary metabolites in potato plants and tuber in the aeroponic system…………………………………………………………………………..55
Fig 20: Fig 1: Effect of different LEDs Lights on potato tuber yield in the aeroponic system…………………………………………………………………………………..…56
List of Tables
Chapter 2:
Table 1. Bellow table represent the growing nutrient solution formulations for vegetative and tubr bulking periods…………………………………………………………………………...6
Table 2: 50 Day After Transplantation (DAT) Plant Morphological Data in different growing times and locations…………………………………………………………………………….9
Table 3: 50 DAT plant photosynthetic pigments chlorophyll a, chlorophyll b, total chlorophyll, and Carotenoid Content, in different locations and growing times……………..……………13
Chapter 4:
Table 4: Light spectrum combination……………………………………………………….37
Table 5: Effect of Light Emitting Diodes (LEDs) on the growth parameters of potato plants in greenhouse conditions……………….………………………………………………………40
Table 6: Effect of LEDs light treatments on photosynthetic pigments, total chlorophyll, and carotenoids……………………………....……………………………………………..…….42
Chapter 5:
Table 7. Light spectrum for potato production in the aeroponic system……………….……50
Table 8: Effect of LED lights on potato plant growth in the aeroponic system…………………………………………………………………………………………52
Abbreviations
DAT: Day after transplantation
EP: early plantation
LP: late plantation
MT: marketable tuber
MTN: marketable tuber number
TTN: total tuber number
PH: plant height
LN: leaf number
LL: leaf length
RL: root length
ST: stolon length
LW: leaf width
RBF: Red: Blue: Far-red
RBW: Red: Blue: White
RF: Red: far-red
BF: Blue: Far-red
RW: Red: White
BW: Blue: White
MT: Meta topline
SA: Salicylic acid
CCC: Chlorocholine chloride
IAA: Indolce 3 acitic acid
GA: Gibrelic acid
WUE: Water use efficiency
TSC: Total soluble carbohydrate
TSS: Total soluble sugar