Abstract
Tea (Camellia sinensis) is one of the most important economic crops. Being perennial in nature, tea plant often experiences natural drought, which affects its growth and productivity. The present investigation was undertaken to understand the mechanism of post-drought stress recovery on rehydration and the effect of nutrients in the recovery process of the selected clones of Camellia sinensis L. (TV-1, TV-20, TV-29 & TV-30). The results demonstrated that decrease in relative water content (RWC), dry mass of leaf and antioxidants like-ascorbate and glutathione in all the tested clones, as a result of imposed water stress, which caused damage was not permanent. Increase in phenolic content with decrease in O2-, H2O2 and lipid peroxidation was indication of the recovery of stress induced oxidative damage following the post stress rehydration. Further, the post drought recovery was enhanced by foliar spray of K, Ca, Mn & B. Differential activities of enzymes like SOD, CAT, POX, GR and PPO in response to foliar spray of nutrients in rehydrated plant improved the recovery process. The present study reveals that the tested nutrients (K, Ca, Mn & B) showed some positive response in influencing growth and antioxidative responses during post drought recovery process, where K and Ca showed comparatively better effect in improving post drought recovery potential in tea plant.
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Claims 6
Claim · model-written summary
Water stress reduced leaf relative water content, leaf dry mass, ascorbate and glutathione across the tested tea clones.
- Taxon
- teat0
- Material
- all the tested clonese0
- Treatment
- imposed water stresse0
- Outcome
- relative water content (RWC), dry mass of leaf and antioxidants like-ascorbate and glutathionee0
- Direction
- decreasee0
Not reportedComparator
Verbatim
e0“decrease in relative water content (RWC), dry mass of leaf and antioxidants like-ascorbate and glutathione in all the tested clones, as a result of imposed water stress”
t0“Tea”
Claim · model-written summary
Phenolic content increased during post-stress rehydration.
Verbatim
e0“Increase in phenolic content with decrease in O2-, H2O2 and lipid peroxidation was indication of the recovery of stress induced oxidative damage following the post stress rehydration”
t0“Tea”
Claim · model-written summary
O2-, H2O2 and lipid peroxidation decreased during post-stress rehydration.
Verbatim
e0“Increase in phenolic content with decrease in O2-, H2O2 and lipid peroxidation was indication of the recovery of stress induced oxidative damage following the post stress rehydration”
t0“Tea”
Claim · model-written summary
Foliar sprays of K, Ca, Mn and B enhanced post-drought recovery.
Not reportedComparator
Verbatim
e0“the post drought recovery was enhanced by foliar spray of K, Ca, Mn & B”
t0“Tea”
Claim · model-written summary
Nutrient sprays altered SOD, CAT, POX, GR and PPO activities in rehydrated tea.
- Taxon
- teat0
- Treatment
- foliar spray of nutrientse0
- Outcome
- activities of enzymes like SOD, CAT, POX, GR and PPOe0
Not reportedDirection
Verbatim
e0“Differential activities of enzymes like SOD, CAT, POX, GR and PPO in response to foliar spray of nutrients in rehydrated plant improved the recovery process”
t0“Tea”
Claim · model-written summary
K and Ca had comparatively better effects on post-drought recovery potential.
Verbatim
e0“K and Ca showed comparatively better effect in improving post drought recovery potential in tea plant”
The same questions in other papers
drought · physiology: water · Camellia sinensis (black tea)Positive and negative results
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See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.