Abstract
Abstract Iron (Fe) chlorosis is a major nutritional constraint to groundnut (Arachis hypogaea L.) productivity in many parts of the world. On‐farm research was conducted at a Fe‐chlorotic site to evaluate the performance of three genotypes (TMV‐2, ICGS‐11, and ICGV‐86031), three fertilizer practices [no fertilizer control, fanners practice (125: 200: 0 kg NPK ha−1), recommended practice (20: 50: 30 kg NPK ha−1)], and two Fe treatments (non‐sprayed control and foliar FeSO4 sprays) for their effect on Fe‐chlorosis and haulm and pod yields. These treatments were tested in a strip‐split plot design with four replicates. Results revealed that TMV‐2 and ICGS‐11 were susceptible to Fe‐chlorosis and produced significantly smaller haulm and pod yield, whereas, ICGV‐8603 1 was tolerant to Fe‐chlorosis. Farmer's fertilizer practice had the highest incidence of Fe‐chlorosis. Extractable Fe and chlorophyll content in the fresh leaves were the best indices of Fe‐status and were significantly (P<0.01) correlated with visual chlorosis ratings. Foliar application of FeSO4 (0.5 w/ v) was effective in correcting Fe‐chlorosis and increased pod yield by about 30 to 40% in susceptible genotypes. These results suggests that use of tolerant genotypes such as ICGV‐86031 or foliar application of FeSO4 in susceptible genotypes such as TMV‐2 and ICGS‐11 in combination with recommended fertilizer levels is an effective management package for alleviating Fe‐chlorosis in groundnut. Notes Corresponding author (e‐mail address: vvpagadala@hotmail.com).
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Claims 9
Claim · model-written summary
TMV-2 and ICGS-11 groundnut genotypes were susceptible to Fe chlorosis.
- Taxon
- groundnut
Arachis hypogaeat0 - Material
- TMV‐2 and ICGS‐11e1
- Outcome
- susceptible to Fe‐chlorosise1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“groundnut”
e1“TMV‐2 and ICGS‐11 were susceptible to Fe‐chlorosis and produced significantly smaller haulm and pod yield”
Claim · model-written summary
TMV-2 and ICGS-11 produced significantly smaller haulm and pod yield.
- Taxon
- groundnutArachis hypogaeat0
- Material
- TMV‐2 and ICGS‐11e1
- Outcome
- haulm and pod yielde1
- Direction
- smallere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“groundnut”
e1“TMV‐2 and ICGS‐11 were susceptible to Fe‐chlorosis and produced significantly smaller haulm and pod yield”
Claim · model-written summary
ICGV-8603 1 groundnut genotype was tolerant to Fe chlorosis.
- Taxon
- groundnutArachis hypogaeat0
- Material
- ICGV‐8603 1e6
- Outcome
- tolerant to Fe‐chlorosise6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“groundnut”
e6“ICGV‐8603 1 was tolerant to Fe‐chlorosis”
Claim · model-written summary
Farmer fertilizer practice had the highest incidence of Fe chlorosis.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- Farmer's fertilizer practicee2
- Outcome
- incidence of Fe‐chlorosise2
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“groundnut”
e2“Farmer's fertilizer practice had the highest incidence of Fe‐chlorosis”
Claim · model-written summary
Extractable Fe and chlorophyll content in fresh leaves were significantly correlated with visual chlorosis ratings.
- Taxon
- groundnutArachis hypogaeat0
- Compound
- Extractable Fe and chlorophyll contente3
- Outcome
- visual chlorosis ratingse3
- Qualifier
- significantly (P<0.01)e3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“groundnut”
e3“Extractable Fe and chlorophyll content in the fresh leaves were the best indices of Fe‐status and were significantly (P<0.01) correlated with visual chlorosis ratings”
Claim · model-written summary
Extractable Fe and chlorophyll content in fresh leaves were the best indices of Fe status.
- Taxon
- groundnutArachis hypogaeat0
- Organ / stage
- fresh leavese3
- Outcome
- best indices of Fe‐statuse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“groundnut”
e3“Extractable Fe and chlorophyll content in the fresh leaves were the best indices of Fe‐status and were significantly (P<0.01) correlated with visual chlorosis ratings”
Claim · model-written summary
Foliar FeSO4 application was effective in correcting Fe chlorosis compared with a non-sprayed control.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- Foliar application of FeSO4 (0.5 w/ v)e4
- Outcome
- correcting Fe‐chlorosise4
- Direction
- effectivee4
- Comparator
- non‐sprayed controle7
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“groundnut”
e4“Foliar application of FeSO4 (0.5 w/ v) was effective in correcting Fe‐chlorosis and increased pod yield by about 30 to 40% in susceptible genotypes”
e7“two Fe treatments (non‐sprayed control and foliar FeSO4 sprays)”
Claim · model-written summary
Foliar FeSO4 application increased pod yield by about 30 to 40% in susceptible groundnut genotypes compared with a non-sprayed control.
- Taxon
- groundnutArachis hypogaeat0
- Material
- susceptible genotypese4
- Treatment
- Foliar application of FeSO4 (0.5 w/ v)e4
- Outcome
- pod yielde4
- Direction
- increasede4
- Value
- 30 to 40%e4
- Comparator
- non‐sprayed controle7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“groundnut”
e4“Foliar application of FeSO4 (0.5 w/ v) was effective in correcting Fe‐chlorosis and increased pod yield by about 30 to 40% in susceptible genotypes”
e7“two Fe treatments (non‐sprayed control and foliar FeSO4 sprays)”
Claim · model-written summary
Tolerant genotypes or foliar FeSO4 in susceptible genotypes, combined with recommended fertilizer levels, is an effective management package for alleviating Fe chlorosis in groundnut.
- Taxon
- groundnutArachis hypogaeat0
- Outcome
- alleviating Fe‐chlorosise5
- Qualifier
- in combination with recommended fertilizer levelse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“groundnut”
e5“in combination with recommended fertilizer levels is an effective management package for alleviating Fe‐chlorosis in groundnut”
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