Abstract
Drought stress is recognized as one of the most important factors reducing crop yields worldwide. Many studies are underway on the foliar application of different compounds to mitigate the effects of drought stress on plants. This experiment was designed to investigate the effects of foliar application of chitosan and salicylic acid on yield and its components under drought stress conditions in potatoes. The experimental design was split-plot with three replications based on a completely randomized design. The main plots and the sub-plots were 12 by 6 m and 6 by 3 m, respectively. The main plots represented three levels of irrigation (100%, 80%, and 60% of available soil water). Treatments in sub-plots included control treatment, 0.5 g/l salicylic acid, 2 g/l chitosan, and combined treatment with chitosan and salicylic acids. The results showed a direct relationship between reduced irrigation and reduced yield. As drought stress increased, yield, yield component parameters, and the physiological indices of the crop declined. Under stress conditions, the biological yield was increased by the application of chitosan and salicylic acid. The highest yield in non-stress conditions was 45,717 kg/ha; for foliar application of 0.5 g/l salicylic acid and 2 g/l chitosan, the highest yield was 45,683 kg/ha.
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Claims 7
Claim · model-written summary
Reduced irrigation was associated with reduced yield.
- Taxon
- potatoes
Solanum tuberosumt0 - Treatment
- reduced irrigatione0
- Outcome
- yielde0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“direct relationship between reduced irrigation and reduced yield”
t0“in potatoes”
Claim · model-written summary
Increasing drought stress reduced yield component parameters and physiological indices.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- drought stresse0
- Outcome
- yield component parameters, and the physiological indicese0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As drought stress increased, yield, yield component parameters, and the physiological indices of the crop declined”
t0“in potatoes”
Claim · model-written summary
Increasing drought stress reduced yield.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- drought stresse0
- Outcome
- yielde0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As drought stress increased, yield, yield component parameters, and the physiological indices of the crop declined”
t0“in potatoes”
Claim · model-written summary
Applying chitosan under stress increased biological yield.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- chitosane0
- Outcome
- biological yielde0
- Direction
- increasede0
- Qualifier
- stress conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under stress conditions, the biological yield was increased by the application of chitosan and salicylic acid”
t0“in potatoes”
Claim · model-written summary
Applying salicylic acid under stress increased biological yield.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- salicylic acide0
- Outcome
- biological yielde0
- Direction
- increasede0
- Qualifier
- stress conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under stress conditions, the biological yield was increased by the application of chitosan and salicylic acid”
t0“in potatoes”
Claim · model-written summary
The highest yield without stress was 45,717 kg/ha.
- Taxon
- potatoesSolanum tuberosumt0
- Outcome
- yielde0
- Direction
- higheste0
- Value
- 45,717 kg/hae0
- Qualifier
- non-stress conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield in non-stress conditions was 45,717 kg/ha”
t0“in potatoes”
Claim · model-written summary
Foliar salicylic acid and chitosan gave a highest yield of 45,683 kg/ha.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- foliar application of 0.5 g/l salicylic acid and 2 g/l chitosane0
- Outcome
- yielde0
- Direction
- higheste0
- Value
- 45,683 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for foliar application of 0.5 g/l salicylic acid and 2 g/l chitosan, the highest yield was 45,683 kg/ha”
t0“in potatoes”
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See all 191 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.