Abstract
In order to evaluate the tolerance of watermelon (Citrullus lanatus L.) accessions to water deficit stress, an experiment was carried out in a split plot based on randomized complete block design with three replicates in research filed of university of Zanjan during 2016. Treatments consisted of three irrigation levels 100%, 70% and 50% Crop Evapotranspiration (ETc) and watermelon accessions (Ananasi, Sharif Abadi, Mahbubi and Charleston Gray commercial cultivar). The results showed that water deficit stress significantly decreased leaf area, plant length, fruit yield, stomata conductance and relative water content (RWC), and increased total soluble solids, peroxidase activity and electrolyte leakage. Amount accessions, the highest leaf area, plant length and yield (84.6 ton/ha) was obtained in Mahbubi accession. The lowest electrolyte leakage and the highest RWC was showed in Ananasi accession, and the highest peroxidase activity in Charleston Gray. Water deficit stress decreased fruit number per plant and fruit weight, although water deficit had no effects on fruit number in Mahbubi accession. The increase in water deficit stress, decreased water use efficiency in “Ananasi”, “Sharif Abadi” and “Charleston Gray”, but the highest WUE (54.85 kg.m -3 ) was obtained in “Mahbubi” under water deficit 50% ETc. water deficit had no significant effects on fruit pH. According to the results, “Mahbubi” with 46.9% reduction in fruit yield under water deficit 50% ETc had the lowest reduction in fruit yield compared to other accessions that was higher tolerance accession to water deficit stress.
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Claims 15
Claim · model-written summary
Water deficit stress significantly decreased leaf area, plant length and fruit yield of watermelon.
- Taxon
- watermelon
Citrullus lanatuse0 - Treatment
- water deficit stresse1
- Outcome
- leaf area, plant length, fruit yielde1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e1“water deficit stress significantly decreased leaf area, plant length, fruit yield, stomata conductance and relative water content (RWC)”
Claim · model-written summary
Water deficit stress significantly decreased stomatal conductance and relative water content of watermelon.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- water deficit stresse1
- Outcome
- stomata conductance and relative water content (RWC)e1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e1“water deficit stress significantly decreased leaf area, plant length, fruit yield, stomata conductance and relative water content (RWC)”
Claim · model-written summary
Water deficit stress increased total soluble solids, peroxidase activity and electrolyte leakage of watermelon.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- water deficit stresse1
- Outcome
- total soluble solids, peroxidase activity and electrolyte leakagee2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e1“water deficit stress significantly decreased leaf area, plant length, fruit yield, stomata conductance and relative water content (RWC)”
e2“and increased total soluble solids, peroxidase activity and electrolyte leakage”
Claim · model-written summary
Mahbubi gave the highest watermelon yield, 84.6 t/ha.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Mahbubie3
- Outcome
- yielde3
- Direction
- higheste3
- Value
- 84.6 ton/hae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e3“the highest leaf area, plant length and yield (84.6 ton/ha) was obtained in Mahbubi accession”
Claim · model-written summary
Mahbubi had the highest leaf area and plant length among watermelon accessions.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Mahbubie3
- Outcome
- leaf area, plant lengthe3
- Direction
- higheste3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e3“the highest leaf area, plant length and yield (84.6 ton/ha) was obtained in Mahbubi accession”
Claim · model-written summary
Ananasi had the lowest electrolyte leakage among watermelon accessions.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Ananasie4
- Outcome
- electrolyte leakagee4
- Direction
- loweste4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e4“The lowest electrolyte leakage and the highest RWC was showed in Ananasi accession”
Claim · model-written summary
Ananasi had the highest relative water content among watermelon accessions.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Ananasie4
- Outcome
- RWCe4
- Direction
- higheste4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e4“The lowest electrolyte leakage and the highest RWC was showed in Ananasi accession”
Claim · model-written summary
Charleston Gray had the highest peroxidase activity among watermelon accessions.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Charleston Graye5
- Outcome
- peroxidase activitye5
- Direction
- higheste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e5“the highest peroxidase activity in Charleston Gray”
Claim · model-written summary
Water deficit stress decreased fruit number per plant and fruit weight of watermelon.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- Water deficit stresse6
- Outcome
- fruit number per plant and fruit weighte6
- Direction
- decreasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e6“Water deficit stress decreased fruit number per plant and fruit weight”
Claim · model-written summary
Water deficit had no effect on fruit number of Mahbubi watermelon.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Mahbubie7
- Treatment
- water deficite7
- Outcome
- fruit numbere7
- Direction
- no effectse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e7“although water deficit had no effects on fruit number in Mahbubi accession”
Claim · model-written summary
Water deficit stress decreased water use efficiency in Ananasi, Sharif Abadi and Charleston Gray watermelon.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- “Ananasi”, “Sharif Abadi” and “Charleston Gray”e1
- Treatment
- water deficit stresse1
- Outcome
- water use efficiencye1
- Direction
- decreasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e1“The increase in water deficit stress, decreased water use efficiency in “Ananasi”, “Sharif Abadi” and “Charleston Gray””
Claim · model-written summary
Mahbubi had the highest water use efficiency, 54.85 kg/m3, under 50% ETc water deficit.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Mahbubie1
- Treatment
- water deficit 50% ETce1
- Outcome
- WUEe1
- Direction
- higheste1
- Value
- 54.85 kg.m -3e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e1“the highest WUE (54.85 kg.m -3 ) was obtained in “Mahbubi” under water deficit 50% ETc”
Claim · model-written summary
Water deficit had no significant effect on watermelon fruit pH.
- Taxon
- watermelonCitrullus lanatuse0
- Treatment
- water deficite1
- Outcome
- fruit pHe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e1“water deficit had no significant effects on fruit pH”
Claim · model-written summary
Mahbubi had the lowest fruit yield reduction under 50% ETc water deficit, 46.9%, compared with other accessions.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Mahbubie1
- Treatment
- water deficit 50% ETce1
- Outcome
- fruit yielde2
- Direction
- lowest reductione2
- Value
- 46.9%e1
- Comparator
- other accessionse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e1““Mahbubi” with 46.9% reduction in fruit yield under water deficit 50% ETc”
e2“had the lowest reduction in fruit yield compared to other accessions”
Claim · model-written summary
The authors conclude that Mahbubi is the watermelon accession with higher tolerance to water deficit stress.
- Taxon
- watermelonCitrullus lanatuse0
- Material
- Mahbubie1
- Outcome
- higher tolerance accession to water deficit stresse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“watermelon (Citrullus lanatus L.) accessions”
e1““Mahbubi” with 46.9% reduction in fruit yield under water deficit 50% ETc”
e2“that was higher tolerance accession to water deficit stress”
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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.