Antioxidant Status of Vigna mungo L. in Response to Sulfur Nutrition
Table 2
Effect of graded level of sulfur supply on photoassimilatory pigments (chlorophylls and carotenoids), carbohydrates (sugars and starch), and cysteine in leaves of black gram plants at 28 days of growth.
S supply: meq S L−1
1.0
2.0
4.0
6.0
8.0
Chlorophyll: mg g−1 fresh weight
Chl.
0.328e
0.507d
0.704a
0.671b
0.541c
Chl.
0.199d
0.306c
0.358a
0.339a
0.287b
Total Chl.
Chl /
1.648c
1.656c
1.966a
1.971a
1.882b
Carotenoids: mg g−1 fresh weight
Car
0.245d
0.361c
0.537a
0.489b
0.386c
Chl/Car
2.091d
2.250b
1.978a
2.067d
2.147c
Carbohydrates: % fresh weight
Reducing sugar
0.093c
0.085d
0.076e
0.120a
0.100b
Nonreducing sugar
0.082a
0.080a
0.022c
0.057b
0.025c
Total sugar
Starch
2.530a
1.915c
0.960e
1.725d
2.415b
Cysteine: mM 100 mg−1 fresh weight
Cysteine
0.081e
0.119d
0.148c
0.199b
0.227a
Differences between group means with different letters in the same row are significant at .