Abstract
Abstract Despite the economic importance of pistachio (Pistasia vera L.) crop, very little information is available on its water needs and nutrient requirements. Therefore, the effects of three irrigation frequencies (1, 3, and 7 d) and five potassium (K) levels (0, 75, 150, 225, and 300 mg kg− 1) on the plant water relations and growth of three pistachio cultivars (‘Badami,’ ‘Ghazvini,’ and ‘Sarakhs’) were studied in a greenhouse experiment. After 30 weeks, the dry weights of leaves, stems, and roots were measured and the total leaf area determined together with the number of leaves per pot and stem height. The effect of water frequency and K application on the leaf water potential, osmotic potential, and turgor potential was studied. Water frequency decreased all of the above growth parameters. Shoot dry weights were reduced by 50% and 68% for ‘Badami,’ 42% and 66% for ‘Ghazvini,’ and 26% and 46% for ‘Sarakhs’ at the three and seven-day irrigation intervals, respectively. Root dry weights were significantly reduced by 27% and 47% for ‘Badami,’ 18% and 48% for ‘Ghazvini,’ and 10% and 28% for ‘Sarakhs’ at the three and seven-day irrigation intervals, respectively. Leaf water potential, and turgor potential were unexpectedly increased by increase in water frequency. However, water frequency decreased leaf osmotic potential. The K application had no significant effect on the leaf water potential, osmotic potential, and turgor potential. It seems that NH4OAc-extractable K (70 mg kg− 1) was probably sufficient for optimum seedling growth of pistachio. Furthermore, ‘Sarakhs’ proved to be the cultivar most tolerant to drought stress in the present study.
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Claims 12
Claim · model-written summary
Water frequency decreased all measured growth parameters of pistachio seedlings in the greenhouse experiment.
- Taxon
- pistachio
Pistacia verae0 - Treatment
- water frequencye1
- Outcome
- growth parameterse1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e1“Water frequency decreased all of the above growth parameters”
Claim · model-written summary
Shoot dry weight of Badami was reduced by 50% and 68% at the three and seven-day irrigation intervals.
- Taxon
- pistachioPistacia verae0
- Material
- Badamie1
- Treatment
- three and seven-day irrigation intervalse1
- Outcome
- Shoot dry weightse1
- Direction
- reducede1
- Value
- 50% and 68%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e1“Shoot dry weights were reduced by 50% and 68% for ‘Badami,’ 42% and 66% for ‘Ghazvini,’ and 26% and 46% for ‘Sarakhs’ at the three and seven-day irrigation intervals, respectively”
Claim · model-written summary
Shoot dry weight of Ghazvini was reduced by 42% and 66% at the three and seven-day irrigation intervals.
- Taxon
- pistachioPistacia verae0
- Material
- Ghazvinie1
- Treatment
- three and seven-day irrigation intervalse1
- Outcome
- Shoot dry weightse1
- Direction
- reducede1
- Value
- 42% and 66%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e1“Shoot dry weights were reduced by 50% and 68% for ‘Badami,’ 42% and 66% for ‘Ghazvini,’ and 26% and 46% for ‘Sarakhs’ at the three and seven-day irrigation intervals, respectively”
Claim · model-written summary
Shoot dry weight of Sarakhs was reduced by 26% and 46% at the three and seven-day irrigation intervals.
- Taxon
- pistachioPistacia verae0
- Material
- Sarakhse1
- Treatment
- three and seven-day irrigation intervalse1
- Outcome
- Shoot dry weightse1
- Direction
- reducede1
- Value
- 26% and 46%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e1“Shoot dry weights were reduced by 50% and 68% for ‘Badami,’ 42% and 66% for ‘Ghazvini,’ and 26% and 46% for ‘Sarakhs’ at the three and seven-day irrigation intervals, respectively”
Claim · model-written summary
Root dry weight of Badami was significantly reduced by 27% and 47% at the three and seven-day irrigation intervals.
- Taxon
- pistachioPistacia verae0
- Material
- Badamie1
- Treatment
- three and seven-day irrigation intervalse1
- Outcome
- Root dry weightse1
- Direction
- reducede1
- Value
- 27% and 47%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e1“Root dry weights were significantly reduced by 27% and 47% for ‘Badami,’ 18% and 48% for ‘Ghazvini,’ and 10% and 28% for ‘Sarakhs’ at the three and seven-day irrigation intervals, respectively”
Claim · model-written summary
Root dry weight of Ghazvini was significantly reduced by 18% and 48% at the three and seven-day irrigation intervals.
- Taxon
- pistachioPistacia verae0
- Material
- Ghazvinie1
- Treatment
- three and seven-day irrigation intervalse1
- Outcome
- Root dry weightse1
- Direction
- reducede1
- Value
- 18% and 48%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e1“Root dry weights were significantly reduced by 27% and 47% for ‘Badami,’ 18% and 48% for ‘Ghazvini,’ and 10% and 28% for ‘Sarakhs’ at the three and seven-day irrigation intervals, respectively”
Claim · model-written summary
Root dry weight of Sarakhs was significantly reduced by 10% and 28% at the three and seven-day irrigation intervals.
- Taxon
- pistachioPistacia verae0
- Material
- Sarakhse1
- Treatment
- three and seven-day irrigation intervalse1
- Outcome
- Root dry weightse1
- Direction
- reducede1
- Value
- 10% and 28%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e1“Root dry weights were significantly reduced by 27% and 47% for ‘Badami,’ 18% and 48% for ‘Ghazvini,’ and 10% and 28% for ‘Sarakhs’ at the three and seven-day irrigation intervals, respectively”
Claim · model-written summary
Leaf water potential and turgor potential of pistachio were unexpectedly increased by higher water frequency.
- Taxon
- pistachioPistacia verae0
- Treatment
- water frequencye1
- Outcome
- Leaf water potential, and turgor potentiale1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e1“Leaf water potential, and turgor potential were unexpectedly increased by increase in water frequency”
Claim · model-written summary
Water frequency decreased leaf osmotic potential of pistachio seedlings.
- Taxon
- pistachioPistacia verae0
- Treatment
- water frequencye1
- Outcome
- leaf osmotic potentiale1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e1“However, water frequency decreased leaf osmotic potential”
Claim · model-written summary
K application had no significant effect on leaf water potential, osmotic potential or turgor potential of pistachio.
- Taxon
- pistachioPistacia verae0
- Treatment
- K applicatione1
- Outcome
- leaf water potential, osmotic potential, and turgor potentiale1
- Direction
- no significant effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e1“The K application had no significant effect on the leaf water potential, osmotic potential, and turgor potential”
Claim · model-written summary
NH4OAc-extractable K of 70 mg kg-1 was probably sufficient for optimum pistachio seedling growth.
- Taxon
- pistachioPistacia verae1
- Outcome
- optimum seedling growthe1
- Value
- 70 mg kg− 1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“It seems that NH4OAc-extractable K (70 mg kg− 1) was probably sufficient for optimum seedling growth of pistachio”
Claim · model-written summary
Sarakhs was the pistachio cultivar most tolerant to drought stress in the study.
- Taxon
- pistachioPistacia verae0
- Material
- Sarakhse2
- Outcome
- most tolerant to drought stresse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the economic importance of pistachio (Pistasia vera L.) crop”
e2“‘Sarakhs’ proved to be the cultivar most tolerant to drought stress in the present study”
The same questions in other papers
irrigation · growth · Pistacia vera (pistachio)Positive and negative results
6 papers in the same direction as this paper · 6 in the opposite direction
- negative
- positive
- positive
9 papers more in this group
See all 13 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.