Water holding capacity

• Water holding capacity refers to maize seeds capacity to hold the water.

## TRIAL 1

• Procedure :
1. I had taken 100 gm of soaked maize grains.

2.Grains were soaked in tap water and warm water for 24 hours.

3. Then maize grains were put on the oven to dry. (at 110° C)

4.I taken weight of maize grains after one hour of interval

5.Until the constant readings were not get

6.After that I calculated the water holding capacity from the following formula:

W.H.C = Initial weight – final weight / final weight × 100

• Observations:
 Time Weight of maize 6/2/2019 10:00 100 11:00 73.91 12:00 69.15 1:00 66.55 2:00 63.92 3:30 63.05 4:00 62.86 5:00 62.70 6:00 62.50 7:00 62.04 8:00 61.45 9:00 61.39 10:00 61.09 10:30 60.84 11:00 60.81 11:30 60.74 7/2/2019 10:30 61.10 11:30 60.83 12:00 60.65 1:00 60.55 2:00 59.80 3:00 59.72 4:00 58.61 5:00 58.58 6:00 58.34 7:00 58.34 8:00 58.34

Calculations:

W.H.C = Initial weight – final weight / Initial weight × 100

=   100 – 58.34 / 58.34 × 100

= 0.4166 × 100

= 41.66 %

Conclusion :

water holding capacity of maize seeds is 41.66%.

## TRIAL 2

observations :

 Time Weight of maize 06/02/2019 10:00 100 11:00 74.13 12:00 67.31 1:00 65.22 2:00 64.56 3:30 64.37 4:00 64.25 5:00 64.06 6:00 63.85 7:00 63.70 8:00 63.20 9:00 63.12 10:00 62.99 10:30 62.75 11:00 62.69 11:30 62.27 7/2/2019 10:30 62.14 11:30 62.84 12:00 61.87 1:00 60.76 2:00 60.19 3:00 59.93 4:00 58.75 5:00 58.75 6:00 58.75

W.H.C = Initial weight – final weight / Initial weight × 100

=100 – 58.75 / 100 × 100

=41.25 %

## TRIAL 3

In this trial I get maize seeds of african tall variety to find out the water holding capacity of seeds.

observations

1. weight of maize = 50 gm
2. weight of oven dry maize = 30.34
 Weight of maize (gm) 34.23 33.10 32.23 32.00 31.91 31.71 31.71 31.68 31.66 30.63 30.54 30.50 30.41 30.35 30.34 30.34

calculations :

W.H.C = Initial weight – final weight / Initial weight × 100

= 50 -30.34 / 50

= 19.66 / 50 × 100

= 39.32 %

## TRIAL 4

observations

 Weight of maize seed 50 34.18 32.35 31.43 31.28 31.02 30.89 30.75 30.71 30.67 30.57 30.48 30.46 30.43 30.41 30.41 30.41

Calculations :

W.H.C = Initial weight – final weight / Initial weight × 100

= 50- 30.41 / 50

= .3918 × 100

= 39.18 %