Growth respond of Pinto Bean Phaseolus vulgaris to differing pH in soils

Growth respond of Pinto Bean Phaseolus vulgaris to differing pH in soils

Zoe YuDecember 2011Gardening Class

Objectives

• Soil pH– An important factor– Impact plant growth

• Nutrient– Macronutrient

• Nitrogen, phosphorus, potassium– Micronutrient

• Boron, copper, iron, chloride, manganese, molybdenum, and zinc

• What’s their relationship?

Methods

11/15/2011

11/18/2011

11/21/2011

11/24/2011

11/27/2011

11/30/2011

12/3/2011

12/6/2011

12/9/20110

2

4

6

8

10

12

14

16

18

20

Plants' Height in Different Soil pH

4.0a4.0b4.0c4.5a4.5b4.5c5.0a5.0b5.5a5.5b5.5c6.0a6.0b6.0c6.5a6.5b6.5c

Date

Heig

ht (c

m)

11/21/2011 11/24/2011 11/27/2011 11/30/2011 12/3/2011 12/6/2011 12/9/20110

10

20

30

40

50

60

70

80

90

100

110

120

130

Average Leaf Surface Area in Different Soil pH

6.565.55

Date

Surf

ace

Area

(cm

2)

3.5a 3.5b 3.5c 4.0a 4.0b 4.0c 4.5a 4.5b 4.5c 5.0a 5.0b 5.0c 5.5a 5.5b 5.5c 6.0a 6.0b 6.0c 6.5a 6.5b 6.5c0

1

2

3

4

5

6

7

8

9

10

11

12

Seed Weight vs. Plant Weight in Different Soil pH

Seed WeightPlant weight

Plant ID

Wei

ght (

g)

6.5 Growth Respond

6.0 Growth Respond

5.5 Growth Respond

5.0 Growth Respond