Effect of rainfall variability on the production of Vigna unguiculata (L.) Walp. in the semi-arid region of Paraíba
Agricultural production in semi-arid areas of the globe is dependent on species adapted to conditions of low availability of resources, such as water. Cowpea (Vigna unguiculata L. Walp.) is a vegetable widely grown in regions with water restrictions, however, even with its good adaptability, it is v...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Rondonópolis
2020-09-01
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| Series: | Scientific Electronic Archives |
| Subjects: | |
| Online Access: | https://sea.ufr.edu.br/index.php?journal=SEA&page=article&op=view&path=1069 |
| _version_ | 1818415720629796864 |
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| author | L. D. R. Silva P. H. A. Cartaxo M. C. Silva K. S. Gonzaga D. B. Araújo E. S. Sousa J. P. O. Santos |
| author_facet | L. D. R. Silva P. H. A. Cartaxo M. C. Silva K. S. Gonzaga D. B. Araújo E. S. Sousa J. P. O. Santos |
| author_sort | L. D. R. Silva |
| collection | DOAJ |
| description | Agricultural production in semi-arid areas of the globe is dependent on species adapted to conditions of low availability of resources, such as water. Cowpea (Vigna unguiculata L. Walp.) is a vegetable widely grown in regions with water restrictions, however, even with its good adaptability, it is vulnerable to the effects of prolonged droughts. In this sense, this research aimed to analyze the influence of rainfall patterns on the production dynamics of cowpea during the period of fifteen years (2002-2016) in the municipality of Conceição, Paraíba, Brazil. A correlation matrix was used to analyze the influence of precipitation on the production variables of the cowpea crop, as well as the relationship between these variables. Subsequently, the Principal Component Analysis (PCA) was carried out. The results showed a strong reduction in the production variables of cowpea from the year 2012, which is due to the reduction of rainfall in this period and was proven through the correction matrix, which showed a positive correlation of rainfall mainly with the planted and harvested area. The PCA recorded 91.02% of explanation in the first two axes, and demonstrated that for production and productivity, other factors in addition to good rainfall levels are necessary to increase the productive results of cowpea in the municipality. |
| first_indexed | 2024-12-14T11:39:29Z |
| format | Article |
| id | doaj.art-ffc1e5f3dcfb403c9254bcd43c76f487 |
| institution | Directory Open Access Journal |
| issn | 2316-9281 2316-9281 |
| language | English |
| last_indexed | 2024-12-14T11:39:29Z |
| publishDate | 2020-09-01 |
| publisher | Universidade Federal de Rondonópolis |
| record_format | Article |
| series | Scientific Electronic Archives |
| spelling | doaj.art-ffc1e5f3dcfb403c9254bcd43c76f4872022-12-21T23:02:54ZengUniversidade Federal de RondonópolisScientific Electronic Archives2316-92812316-92812020-09-01139263210.36560/13920201069753Effect of rainfall variability on the production of Vigna unguiculata (L.) Walp. in the semi-arid region of ParaíbaL. D. R. Silva0P. H. A. Cartaxo1M. C. Silva2K. S. Gonzaga3D. B. Araújo4E. S. Sousa5J. P. O. Santos6Universidade Federal da ParaíbaUniversidade Federal da ParaíbaUniversidade Federal da ParaíbaUniversidade Federal da ParaíbaUniversidade Federal da ParaíbaUniversidade Federal da ParaíbaUniversidade Federal da ParaíbaAgricultural production in semi-arid areas of the globe is dependent on species adapted to conditions of low availability of resources, such as water. Cowpea (Vigna unguiculata L. Walp.) is a vegetable widely grown in regions with water restrictions, however, even with its good adaptability, it is vulnerable to the effects of prolonged droughts. In this sense, this research aimed to analyze the influence of rainfall patterns on the production dynamics of cowpea during the period of fifteen years (2002-2016) in the municipality of Conceição, Paraíba, Brazil. A correlation matrix was used to analyze the influence of precipitation on the production variables of the cowpea crop, as well as the relationship between these variables. Subsequently, the Principal Component Analysis (PCA) was carried out. The results showed a strong reduction in the production variables of cowpea from the year 2012, which is due to the reduction of rainfall in this period and was proven through the correction matrix, which showed a positive correlation of rainfall mainly with the planted and harvested area. The PCA recorded 91.02% of explanation in the first two axes, and demonstrated that for production and productivity, other factors in addition to good rainfall levels are necessary to increase the productive results of cowpea in the municipality.https://sea.ufr.edu.br/index.php?journal=SEA&page=article&op=view&path=1069family farmingdroughtscowpea. |
| spellingShingle | L. D. R. Silva P. H. A. Cartaxo M. C. Silva K. S. Gonzaga D. B. Araújo E. S. Sousa J. P. O. Santos Effect of rainfall variability on the production of Vigna unguiculata (L.) Walp. in the semi-arid region of Paraíba Scientific Electronic Archives family farming droughts cowpea. |
| title | Effect of rainfall variability on the production of Vigna unguiculata (L.) Walp. in the semi-arid region of Paraíba |
| title_full | Effect of rainfall variability on the production of Vigna unguiculata (L.) Walp. in the semi-arid region of Paraíba |
| title_fullStr | Effect of rainfall variability on the production of Vigna unguiculata (L.) Walp. in the semi-arid region of Paraíba |
| title_full_unstemmed | Effect of rainfall variability on the production of Vigna unguiculata (L.) Walp. in the semi-arid region of Paraíba |
| title_short | Effect of rainfall variability on the production of Vigna unguiculata (L.) Walp. in the semi-arid region of Paraíba |
| title_sort | effect of rainfall variability on the production of vigna unguiculata l walp in the semi arid region of paraiba |
| topic | family farming droughts cowpea. |
| url | https://sea.ufr.edu.br/index.php?journal=SEA&page=article&op=view&path=1069 |
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