Fig 1.
Effect of foliarly treated L-methionine on (A) Shoot fresh weight, (B) shoot dry weights, (C) shoot length and (D) root lengths in sunflower (Helianthus annuus L.) plants grown under water deficit condition (Mean ± S.E.).
Table 1.
Mean squares values (ANOVA) for growth, chlorophyll and oxidative defense system of four cultivars of sunflower (Helianthus annuus L.) treated with foliar application of L-methionine (Met) grown under water-deficit stress.
Fig 2.
Supplementation of L-methionine restored (A) chlorophyll a, (B) chlorophyll b, and (C) chlorophyll a/b ratio in sunflower (Helianthus annuus L.) plants grown under water deficit condition (Mean ± S.E.).
Fig 3.
Foliarly applied L-methionine regulates (A) Relative membrane permeability, (B) MDA content, and (C) H2O2 content in sunflower (Helianthus annuus L.) plants grown under water deficit condition (Mean ± S.E.).
Fig 4.
Effect of L-methionine on (A) free proline, (B) GB content, (C) total soluble protein and (D) total soluble sugars in sunflower (Helianthus annuus L.) plants grown under water deficit condition (Mean ± S.E.).
Fig 5.
External supplementation of L-methionine regulates (A) ascorbic acid and (B) total phenolics in sunflower (Helianthus annuus L.) plants grown under water deficit condition (Mean ± S.E.).
Fig 6.
Effect of foliarly applied L-methionine on activity of antioxidant enzymes (A) SOD, (B) POD and (C) CAT in sunflower (Helianthus annuus L.) plants grown under water deficit condition (Mean ± S.E.).