Abstract
Population growth, food shortages, climate change and water scarcity are some of the frightening challenges being confronted in today's world. Water deficit or drought stress has been considered a severe limitation for the productivity of rice, a widely popular nutritive cereal crop and the staple food of a large portion of the population. A key stage in crop growth is seed emergence, which is mostly constrained by abiotic elements such as high temperatures, soil crusting and low water potential, which are responsible for poor stand establishment. Seed priming is a pre-sowing treatment of seeds that primes them to a physiological state that allows them to emerge more proficiently. The purpose of this study was to investigate the potential of leaf extracts from local and exotic moringa landraces as seed priming agents in rice cultivated under water deficit (75% field capacity) and control conditions (100% field capacity). Rice seeds were placed in an aerated solution of moringa leaf extract (MLE) at 3% from three obtained landraces (Faisalabad, Multan and an exotic landrace of India). The results obtained from the experimentation show that the water deficit regime adversely affected the studied indicators including emergence and growth attributes as well as physiological parameters. Among the priming agents, MLE from the Faisalabad landrace significantly improved the speed and spread of emergence of rice seedlings (time to start emergence at 23%, emergence index at 75%, mean emergence time at 3.58% and final emergence percentage at 46%). All the priming agents enhanced the growth, photosynthetic pigments, gas exchange parameters and antioxidant activities, particularly under the water deficit regime, but the maximum improvement was recorded by the MLE from the Faisalabad landrace. Therefore, the MLE of the Faisalabad landrace can be productively used to boost the seedling establishment and growth of rice grown under normal and water deficit conditions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Water deficit adversely affected emergence, growth and physiological indicators.
- Taxon
- Rice seedlings
Oryza sativat0 - Treatment
- water deficit regimee0
- Outcome
- emergence and growth attributes as well as physiological parameterse0
- Direction
- adversely affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the water deficit regime adversely affected the studied indicators including emergence and growth attributes as well as physiological parameters”
t0“Rice Seedlings”
Claim · model-written summary
Faisalabad moringa extract significantly improved time to start emergence by 23%.
- Taxon
- rice seedlingsOryza sativae0
- Treatment
- MLE from the Faisalabad landracee0
- Outcome
- time to start emergencee0
- Direction
- improvede0
- Value
- 23%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MLE from the Faisalabad landrace significantly improved the speed and spread of emergence of rice seedlings (time to start emergence at 23%, emergence index at 75%, mean emergence time at 3.58% and final emergence percentage at 46%)”
Claim · model-written summary
Faisalabad moringa extract significantly improved emergence index by 75%.
- Taxon
- rice seedlingsOryza sativae0
- Treatment
- MLE from the Faisalabad landracee0
- Outcome
- emergence indexe0
- Direction
- improvede0
- Value
- 75%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MLE from the Faisalabad landrace significantly improved the speed and spread of emergence of rice seedlings (time to start emergence at 23%, emergence index at 75%, mean emergence time at 3.58% and final emergence percentage at 46%)”
Claim · model-written summary
Faisalabad moringa extract significantly improved mean emergence time by 3.58%.
- Taxon
- rice seedlingsOryza sativae0
- Treatment
- MLE from the Faisalabad landracee0
- Outcome
- mean emergence timee0
- Direction
- improvede0
- Value
- 3.58%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MLE from the Faisalabad landrace significantly improved the speed and spread of emergence of rice seedlings (time to start emergence at 23%, emergence index at 75%, mean emergence time at 3.58% and final emergence percentage at 46%)”
Claim · model-written summary
Faisalabad moringa extract significantly improved final emergence percentage by 46%.
- Taxon
- rice seedlingsOryza sativae0
- Treatment
- MLE from the Faisalabad landracee0
- Outcome
- final emergence percentagee0
- Direction
- improvede0
- Value
- 46%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MLE from the Faisalabad landrace significantly improved the speed and spread of emergence of rice seedlings (time to start emergence at 23%, emergence index at 75%, mean emergence time at 3.58% and final emergence percentage at 46%)”
Claim · model-written summary
All priming agents enhanced growth, pigments, gas exchange and antioxidant activity, particularly under water deficit.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- All the priming agentse0
- Outcome
- growth, photosynthetic pigments, gas exchange parameters and antioxidant activitiese0
- Direction
- enhancede0
- Qualifier
- particularly under the water deficit regimee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the priming agents enhanced the growth, photosynthetic pigments, gas exchange parameters and antioxidant activities, particularly under the water deficit regime”
t0“Rice Seedlings”
Claim · model-written summary
Faisalabad moringa extract gave the maximum improvement.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- MLE from the Faisalabad landracee0
- Outcome
- maximum improvemente0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the maximum improvement was recorded by the MLE from the Faisalabad landrace”
t0“Rice Seedlings”
Claim · model-written summary
The authors recommend Faisalabad moringa leaf extract to improve rice seedling establishment and growth.
- Taxon
- riceOryza sativae0
- Outcome
- used to boost the seedling establishment and growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the MLE of the Faisalabad landrace can be productively used to boost the seedling establishment and growth of rice grown under normal and water deficit conditions”
The same questions in other papers
botanical · growth · Oryza sativa (rice)Positive and negative results
132 papers in the same direction as this paper · 78 in the opposite direction
- positive
- positive
- positive
207 papers more in this group
See all 211 papers →drought · growth · Oryza sativa (rice)Positive and negative results
183 papers in the same direction as this paper · 98 in the opposite direction
- positive
- positive
- positive
278 papers more in this group
See all 282 papers →seed treatment · physiology: photosynthesis · Oryza sativa (rice)Results agree
18 papers in the same direction as this paper
- positive
- positive
- positive
15 papers more in this group
See all 19 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.