Abstract
Regulated deficit irrigation (RDI) is commonly used during different phenological stages of fruit growth and development in almond trees to reduce the amount of irrigation water applied without or with only very small reductions in yield. Therefore, to study the effects of deficit and cutoff irrigation during different phenological stages of fruit growth and development in almond cv. “Mamaei” production, an experiment was carried out in a split plot on randomized block design with three replications. The main plots were three different phenological stages of fruit growth and development i.e. Stage I (fruit growth period), Stage II (kernel growth period) and stage III (preharvest period). The subplots had different irrigation regimes, namely T1= 100% ETc (Full irrigation), T2= 80% ETc (deficit irrigation), T3= 40% ETc (deficit irrigation) and T4= 0% ETc (cutoff or drought period). Traits such as fruit size (length, width and diameter), fresh and dry weight of fruit, fresh and dry weight of kernel, percentage of fruit drop, kernel percentage and yield were measured. The results showed that deficit and cutoff irrigation during stage-I decreased fruit size, both fresh and dry weight of fruit. Deficit and cutoff irrigation during stage-II decreased fruit fresh weight, fresh and dry weights of kernel, but no significant differences were observed for the measured traits when irrigation treatments were applied at stage III. These results indicated that preharvest stage (stage III) in ‘Mamaei’ cultivar has low sensitivity to deficit irrigation. Therefore, it is concluded that deficit irrigation with 40% of full irrigation (%40 ETc) during stage III for two months prior to harvest can be used without considerable reduction of yield for this cultivar under the climatic conditions in Saman region.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-sa. 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 4
Claim · model-written summary
Deficit and cutoff irrigation in stage I decreased almond fruit size and fruit fresh and dry weight.
- Taxon
- almond trees
Prunus dulcist0 - Treatment
- deficit and cutoff irrigation during stage-Ie0
- Outcome
- fruit size, both fresh and dry weight of fruite0
- Direction
- decreasede0
- Comparator
- Full irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“almond trees”
e0“deficit and cutoff irrigation during stage-I decreased fruit size, both fresh and dry weight of fruit”
e1“T1= 100% ETc (Full irrigation)”
Claim · model-written summary
Deficit and cutoff irrigation in stage II decreased almond fruit fresh weight and kernel fresh and dry weights.
- Taxon
- almond treesPrunus dulcist0
- Treatment
- Deficit and cutoff irrigation during stage-IIe0
- Outcome
- fruit fresh weight, fresh and dry weights of kernele0
- Direction
- decreasede0
- Comparator
- Full irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“almond trees”
e0“Deficit and cutoff irrigation during stage-II decreased fruit fresh weight, fresh and dry weights of kernel”
e1“T1= 100% ETc (Full irrigation)”
Claim · model-written summary
Irrigation treatments in stage III produced no significant differences in measured almond traits.
- Taxon
- almond treesPrunus dulcist0
- Treatment
- irrigation treatments were applied at stage IIIe0
- Outcome
- measured traitse0
- Direction
- no significant differencese0
- Comparator
- Full irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“almond trees”
e0“no significant differences were observed for the measured traits when irrigation treatments were applied at stage III”
e1“T1= 100% ETc (Full irrigation)”
Claim · model-written summary
The authors concluded that 40% of full irrigation during stage III for two preharvest months can be used without considerable yield reduction in Mamaei almond in Saman.
- Taxon
- almond treesPrunus dulcist0
- Material
- Mamaeit0
- Treatment
- deficit irrigation with 40% of full irrigation (%40 ETc) during stage III for two months prior to harveste0
- Outcome
- without considerable reduction of yielde0
- Setting
- Saman regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“deficit irrigation with 40% of full irrigation (%40 ETc) during stage III for two months prior to harvest can be used without considerable reduction of yield for this cultivar under the climatic conditions in Saman region”
t0“almond trees cv. 'Mamaei'”
The same questions in other papers
irrigation · growth · Prunus dulcis (almond)Positive and negative results
3 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →irrigation · yield · Prunus dulcis (almond)Positive and negative results
14 papers in the same direction as this paper · 10 in the opposite direction
- positive
- negative
- no effect
21 papers more in this group
See all 25 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.