Abstract
Drought is an important abiotic stress factor that reduces agricultural production and yield in many crops, including forage crops, in agricultural areas around the world. Lotus corniculatus L. is the agriculturally crucial perennial legume forage crop that can tolerate moderate drought. However, studies to determine the responses of L. corniculatus to drought are limited. Therefore, this study was carried out to determine the seed germination and early seedling growth properties of L. corniculatus at different PEG6000 induced-drought treatments under in vitro conditions. In order to do this, L. corniculatus (cv. ‘AC Langille’) seeds were planted in MS (Murashige and Skoog/Gamborg) medium containing 0%, 4%, and 8% (w/v) PEG6000 for 14 days. In this study, germination percentage, mean germination time, germination rate index (speed of germination), shoot and root length, root to shoot length ratio, shoot and root fresh weight, shoot and root dry weight, shoot and root dry matter ratio, root shoot dry matter ratio, shoot and root water content and seedling vigor index parameters were measured. Our results showed that increasing drought levels resulted in an overall significant reduction in germination and seedling growth parameters except shortened mean germination time (especially, 4% PEG6000 treatment) and increased shoot and root dry matter ratio at higher (especially, 8% PEG6000 treatment) drought levels. When important growth parameters such as length, fresh and dry weight, dry matter ratio and water content, which show the development of root and shoot organs, are evaluated together, it has been determined that the root is negatively affected by drought stress at a higher rate. Based on these data, it can be concluded that the L. corniculatus will suffer a high yield loss under the drought stress at the osmotic potential (-1.03 bar) created by 8% PEG6000 treatment.
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Claims 5
Claim · model-written summary
Increasing drought significantly reduced germination and seedling growth parameters.
- Taxon
- Lotus corniculatus L.
_Lotus_corniculatus_-_Plant_habit.jpg?width=60)
Lotus corniculatust0 - Treatment
- increasing drought levelse0
- Outcome
- germination and seedling growth parameterse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Lotus_corniculatus_-_Plant_habit.jpg?width=500)
Verbatim
e0“Our results showed that increasing drought levels resulted in an overall significant reduction in germination and seedling growth parameters except shortened mean germination time (especially, 4% PEG6000 treatment) and increased shoot and root dry matter ratio at higher (especially, 8% PEG6000 treatment) drought levels.”
t0“Lotus corniculatus L.”
Claim · model-written summary
Drought shortened mean germination time, particularly at 4% PEG6000.
- Taxon
- Lotus corniculatus L.Lotus corniculatust0
- Treatment
- 4% PEG6000 treatmente0
- Outcome
- mean germination timee0
- Direction
- shortenede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results showed that increasing drought levels resulted in an overall significant reduction in germination and seedling growth parameters except shortened mean germination time (especially, 4% PEG6000 treatment) and increased shoot and root dry matter ratio at higher (especially, 8% PEG6000 treatment) drought levels.”
t0“Lotus corniculatus L.”
Claim · model-written summary
Higher drought increased shoot and root dry matter ratio, particularly at 8% PEG6000.
- Taxon
- Lotus corniculatus L.Lotus corniculatust0
- Treatment
- 8% PEG6000 treatmente0
- Outcome
- shoot and root dry matter ratioe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our results showed that increasing drought levels resulted in an overall significant reduction in germination and seedling growth parameters except shortened mean germination time (especially, 4% PEG6000 treatment) and increased shoot and root dry matter ratio at higher (especially, 8% PEG6000 treatment) drought levels.”
t0“Lotus corniculatus L.”
Claim · model-written summary
Roots were more negatively affected by drought stress than shoots across growth parameters.
- Taxon
- Lotus corniculatus L.Lotus corniculatust0
- Organ / stage
- roote0
- Treatment
- drought stresse0
- Outcome
- root is negatively affectede0
- Direction
- higher ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When important growth parameters such as length, fresh and dry weight, dry matter ratio and water content, which show the development of root and shoot organs, are evaluated together, it has been determined that the root is negatively affected by drought stress at a higher rate.”
t0“Lotus corniculatus L.”
Claim · model-written summary
The authors project high yield loss under 8% PEG6000 drought stress.
- Taxon
- L. corniculatusLotus corniculatuse0
- Treatment
- 8% PEG6000 treatmente0
- Outcome
- yield losse0
- Direction
- highe0
- Qualifier
- osmotic potential (-1.03 bar)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Based on these data, it can be concluded that the L. corniculatus will suffer a high yield loss under the drought stress at the osmotic potential (-1.03 bar) created by 8% PEG6000 treatment.”
The same questions in other papers
drought · growth · Lotus corniculatusPositive and negative results
3 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
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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.