Abstract
Cowpea suffers signifi cant production losses when subjected to salt stress, but the response varies among genotypes.The objective of this study was to evaluate the phenology and production of traditional cowpea seeds under saline water irrigation.The experiment was conducted in two stages, the fi rst one in a greenhouse to evaluate the phenology and production of cowpeagenotypes and the second one in the laboratory to assess the viability and vigor of the seeds produced in the fi rst stage. The treatmentsresulted from the combination of two salinity levels of the irrigation water (0.5 and 4.5 dS m-1) and 14 traditional cowpea varieties(Boquinha, Ceará, Costela-de-vaca, Lisão, Canário, Pingo-de-ouro, Roxão, Branco, Canapum-branco, Canapum-miúdo, Baêta, Coruja,Paulistinha, and Sempre-verde) acquired from traditional farmers in the western region of Rio Grande do Norte, Brazil. Canário, Baêta,and Coruja varieties have a higher number of fl owers per plant and earlier fl owering. Salinity reduced the number of fl owers per plant,increased abortion in all traditional varieties and reduced production in the early varieties Branco, Canapum-miúdo, Baêta, and Coruja.Cultivation under saline water irrigation did not affect the viability of the seeds from the second generation of cowpea, but reducedthe vigor of the seeds of the varieties Lisão, Pingo-de-ouro, Roxão, Branco, Canapum-branco, Canapum-miúdo, Baêta and Coruja.The traditional varieties Boquinha, Ceará, Costela-de-vaca, Canário, Paulistinha and Sempre-verde are indicated for the production ofcowpea seeds under irrigation with saline water.
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Claims 11
Claim · model-written summary
Canário, Baêta and Coruja have a higher number of flowers per plant.
- Taxon
- cowpea
Vigna unguiculatat0 - Material
- Canário, Baêta,and Corujae1
- Outcome
- number of fl owers per plante1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e1“Canário, Baêta,and Coruja varieties have a higher number of fl owers per plant and earlier fl owering”
Claim · model-written summary
Canário, Baêta and Coruja have earlier flowering.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Canário, Baêta,and Corujae1
- Outcome
- earlier fl oweringe1
- Direction
- earliere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e1“Canário, Baêta,and Coruja varieties have a higher number of fl owers per plant and earlier fl owering”
Claim · model-written summary
Salinity reduced the number of flowers per plant in cowpea.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- Salinitye2
- Outcome
- number of fl owers per plante2
- Direction
- reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e2“Salinity reduced the number of fl owers per plant”
Claim · model-written summary
Salinity increased abortion in all traditional cowpea varieties.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- all traditional varietiese3
- Treatment
- Salinitye2
- Outcome
- abortione3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e2“Salinity reduced the number of fl owers per plant”
e3“increased abortion in all traditional varieties”
Claim · model-written summary
Salinity reduced production in the early varieties Branco, Canapum-miúdo, Baêta and Coruja.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Branco, Canapum-miúdo, Baêta, and Corujae4
- Treatment
- Salinitye2
- Outcome
- productione4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e2“Salinity reduced the number of fl owers per plant”
e4“reduced production in the early varieties Branco, Canapum-miúdo, Baêta, and Coruja”
Claim · model-written summary
Cultivation under saline water irrigation did not affect seed viability of the second generation.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- saline water irrigatione5
- Outcome
- viability of the seedse5
- Direction
- did not affecte5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e5“Cultivation under saline water irrigation did not affect the viability of the seeds”
Claim · model-written summary
Saline water irrigation reduced seed vigor of Lisão, Pingo-de-ouro and Roxão.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Lisão, Pingo-de-ouro, Roxãoe6
- Treatment
- saline water irrigatione5
- Outcome
- vigor of the seedse6
- Direction
- reducede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e5“Cultivation under saline water irrigation did not affect the viability of the seeds”
e6“reducedthe vigor of the seeds of the varieties Lisão, Pingo-de-ouro, Roxão, Branco, Canapum-branco, Canapum-miúdo, Baêta and Coruja”
Claim · model-written summary
Saline water irrigation reduced seed vigor of Branco, Canapum-branco and Canapum-miúdo.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Branco, Canapum-branco, Canapum-miúdoe6
- Treatment
- saline water irrigatione5
- Outcome
- vigor of the seedse6
- Direction
- reducede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e5“Cultivation under saline water irrigation did not affect the viability of the seeds”
e6“reducedthe vigor of the seeds of the varieties Lisão, Pingo-de-ouro, Roxão, Branco, Canapum-branco, Canapum-miúdo, Baêta and Coruja”
Claim · model-written summary
Saline water irrigation reduced seed vigor of Baêta and Coruja.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Baêta and Corujae6
- Treatment
- saline water irrigatione5
- Outcome
- vigor of the seedse6
- Direction
- reducede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e5“Cultivation under saline water irrigation did not affect the viability of the seeds”
e6“reducedthe vigor of the seeds of the varieties Lisão, Pingo-de-ouro, Roxão, Branco, Canapum-branco, Canapum-miúdo, Baêta and Coruja”
Claim · model-written summary
Boquinha, Ceará and Costela-de-vaca are indicated for cowpea seed production under saline irrigation.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Boquinha, Ceará, Costela-de-vacae7
- Outcome
- production ofcowpea seeds under irrigation with saline watere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e7“The traditional varieties Boquinha, Ceará, Costela-de-vaca, Canário, Paulistinha and Sempre-verde are indicated for the production ofcowpea seeds under irrigation with saline water”
Claim · model-written summary
Canário, Paulistinha and Sempre-verde are indicated for cowpea seed production under saline irrigation.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Canário, Paulistinha and Sempre-verdee7
- Outcome
- production ofcowpea seeds under irrigation with saline watere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“cowpea”
e7“The traditional varieties Boquinha, Ceará, Costela-de-vaca, Canário, Paulistinha and Sempre-verde are indicated for the production ofcowpea seeds under irrigation with saline water”
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