Foliar spray

Chl_a (ppm)

Chl_b (ppm)

Carotenoid (ppm)

Chl_a + Chl_b (ppm)

Chl_a: Chl_b

(Chl_a + Chl_b) Carotenoids

1.Tap water

5.61

2.29

2.36

7.90

2.45

3.31

2. Ascorbic acid (150 ppm)

5.03

2.02

1.89

7.05

2.49

3.73

3. Trt. 2 + ZnSO₄ (200 ppm)

5.46

2.13

2.09

7.59

2.56

3.63

LSD (P ≤ 0.05)

N.S

N.S

N.S

N.S

-

-