Abstract
Abstract Drought during the pre‐flowering stage can increase yield of peanut. There is limited information on genotypic variation for tolerance to and recovery from pre‐flowering drought (PFD) and more importantly the physiological traits underlying genotypic variation. The objectives of this study were to determine the effects of moisture stress during the pre‐flowering phase on pod yield and to understand some of the physiological responses underlying genotypic variation in response to and recovery from PFD. A glasshouse and field experiments were conducted at Khon Kaen University, Thailand. The glasshouse experiment was a randomized complete block design consisting of two watering regimes, i.e. fully‐irrigated control and 1/3 available soil water from emergence to 40 days after emergence followed by adequate water supply, and 12 peanut genotypes. The field experiment was a split‐plot design with two watering regimes as main‐plots, and 12 peanut genotypes as sub‐plots. Measurements of N 2 fixation, leaf area (LA) were made in both experiments. In addition, root growth was measured in the glasshouse experiment. Imposition of PFD followed by recovery resulted in an average increase in yield of 24 % (range from 10 % to 57 %) and 12 % (range from 2 % to 51 %) in the field and glasshouse experiments, respectively. Significant genotypic variation for N 2 fixation, LA and root growth was also observed after recovery. The study revealed that recovery growth following release of PFD had a stronger influence on final yield than tolerance to water deficits during the PFD. A combination of N 2 fixation, LA and root growth accounted for a major portion of the genotypic variation in yield ( r = 0.68–0.93) suggesting that these traits could be used as selection criteria for identifying genotypes with rapid recovery from PFD. A combined analysis of glasshouse and field experiments showed that LA and N 2 fixation during the recovery had low genotype × environment interaction indicating potential for using these traits for selecting genotypes in peanut improvement programs.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 7
Claim · model-written summary
Pre-flowering drought followed by recovery increased peanut yield by 24 % in the field.
- Taxon
- Peanut
Arachis hypogaeat0 - Treatment
- Imposition of PFD followed by recoverye4
- Outcome
- yielde4
- Direction
- increasee4
- Value
- 24 %e4
- Qualifier
- range from 10 % to 57 %e4
- Setting
- the fielde4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Peanut”
e4“Imposition of PFD followed by recovery resulted in an average increase in yield of 24 % (range from 10 % to 57 %) and 12 % (range from 2 % to 51 %) in the field and glasshouse experiments, respectively”
Claim · model-written summary
Pre-flowering drought followed by recovery increased peanut yield by 12 % in the glasshouse.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- Imposition of PFD followed by recoverye4
- Outcome
- yielde4
- Direction
- increasee4
- Value
- 12 %e4
- Qualifier
- range from 2 % to 51 %e4
- Comparator
- fully‐irrigated controle5
- Setting
- glasshouse experimentse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Peanut”
e4“Imposition of PFD followed by recovery resulted in an average increase in yield of 24 % (range from 10 % to 57 %) and 12 % (range from 2 % to 51 %) in the field and glasshouse experiments, respectively”
e5“fully‐irrigated control and 1/3 available soil water”
Claim · model-written summary
Significant genotypic variation for N 2 fixation, LA and root growth was observed after recovery.
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- N 2 fixation, LA and root growthe6
- Qualifier
- genotypic variatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Peanut”
e6“Significant genotypic variation for N 2 fixation, LA and root growth was also observed after recovery”
Claim · model-written summary
Recovery growth following release of pre-flowering drought had a stronger influence on final yield than tolerance to water deficits.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- recovery growth following release of PFDe0
- Outcome
- final yielde0
- Direction
- strongere0
- Comparator
- tolerance to water deficits during the PFDe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Peanut”
e0“recovery growth following release of PFD had a stronger influence on final yield than tolerance to water deficits during the PFD”
Claim · model-written summary
N 2 fixation, LA and root growth together accounted for a major portion of the genotypic variation in yield (r = 0.68–0.93).
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- genotypic variation in yielde1
- Value
- r = 0.68–0.93e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Peanut”
e1“accounted for a major portion of the genotypic variation in yield”
e3“r = 0.68–0.93”
Claim · model-written summary
N 2 fixation, LA and root growth could be used as selection criteria for identifying genotypes with rapid recovery from pre-flowering drought.
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- identifying genotypes with rapid recovery from PFDe2
- Qualifier
- could be used as selection criteriae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Peanut”
e2“suggesting that these traits could be used as selection criteria for identifying genotypes with rapid recovery from PFD”
Claim · model-written summary
LA and N 2 fixation during recovery showed low genotype × environment interaction in a combined analysis.
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- genotype × environment interactione4
- Direction
- lowe4
- Qualifier
- LA and N 2 fixation during the recoverye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Peanut”
e4“A combined analysis of glasshouse and field experiments showed that LA and N 2 fixation during the recovery had low genotype × environment interaction”
The same questions in other papers
drought · yield · Arachis hypogaea (peanut)Results differ
23 papers in the same direction as this paper · 55 in the opposite direction
- negative
- positive
- negative
75 papers more in this group
See all 79 papers →rewatering · yield · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- positive
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.