Yield and growth characteristics of sunflower sown from August to February in Santa Maria, RS
Sunflower (Helianthus annuus L.) is an oilseed crop that can be grown in different regions and sowing dates, but not all regions and sowing dates are appropriate for the crop development. The aim of this study was to determine yield and growth characteristics of sunflower on seven sowing dates, in S...
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| Language: | English |
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Universidade Federal de Campina Grande
2014-09-01
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662014000900005&lng=en&tlng=en |
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| author | Arno B. Heldwein Luis H. Loose Dionéia D. P. Lucas Fernando D. Hinnah Mateus P. Bortoluzzi Ivan C. Maldaner |
| author_facet | Arno B. Heldwein Luis H. Loose Dionéia D. P. Lucas Fernando D. Hinnah Mateus P. Bortoluzzi Ivan C. Maldaner |
| author_sort | Arno B. Heldwein |
| collection | DOAJ |
| description | Sunflower (Helianthus annuus L.) is an oilseed crop that can be grown in different regions and sowing dates, but not all regions and sowing dates are appropriate for the crop development. The aim of this study was to determine yield and growth characteristics of sunflower on seven sowing dates, in Santa Maria, from 2007 to 2012. Five experiments were carried out in a completely randomized factorial design with four replications. The factor "A" was monthly sowing dates from the beginning of August to February and the factor "D" was two sunflower hybrids. Capitulum diameter, maximum leaf area index, maximum height of plants, weight of thousand achenes and yield were determined. In normal or La Niña years the highest yield is reached in September sowing dates, while in El Niño years, the crop growth and yield in early sowings are affected negatively, due to heavy rainfall, soil water excess and plant diseases. |
| format | Article |
| id | doaj-art-8a2ea0ff98814fbb97b6a0c6a303d8c3 |
| institution | OA Journals |
| issn | 1807-1929 |
| language | English |
| publishDate | 2014-09-01 |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-8a2ea0ff98814fbb97b6a0c6a303d8c32025-08-20T02:25:54ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-19292014-09-0118990891310.1590/1807-1929/agriambi.v18n09p908-913S1415-43662014000900005Yield and growth characteristics of sunflower sown from August to February in Santa Maria, RSArno B. Heldwein0Luis H. Loose1Dionéia D. P. Lucas2Fernando D. Hinnah3Mateus P. Bortoluzzi4Ivan C. Maldaner5Universidade Federal de Santa MariaUniversidade Federal de Santa MariaSEAPA/RSUniversidade de São PauloUniversidade Federal de Santa MariaIF FarroupilhaSunflower (Helianthus annuus L.) is an oilseed crop that can be grown in different regions and sowing dates, but not all regions and sowing dates are appropriate for the crop development. The aim of this study was to determine yield and growth characteristics of sunflower on seven sowing dates, in Santa Maria, from 2007 to 2012. Five experiments were carried out in a completely randomized factorial design with four replications. The factor "A" was monthly sowing dates from the beginning of August to February and the factor "D" was two sunflower hybrids. Capitulum diameter, maximum leaf area index, maximum height of plants, weight of thousand achenes and yield were determined. In normal or La Niña years the highest yield is reached in September sowing dates, while in El Niño years, the crop growth and yield in early sowings are affected negatively, due to heavy rainfall, soil water excess and plant diseases.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662014000900005&lng=en&tlng=enHelianthus annuus L.épocas de semeaduracondições meteorológicas |
| spellingShingle | Arno B. Heldwein Luis H. Loose Dionéia D. P. Lucas Fernando D. Hinnah Mateus P. Bortoluzzi Ivan C. Maldaner Yield and growth characteristics of sunflower sown from August to February in Santa Maria, RS Revista Brasileira de Engenharia Agrícola e Ambiental Helianthus annuus L. épocas de semeadura condições meteorológicas |
| title | Yield and growth characteristics of sunflower sown from August to February in Santa Maria, RS |
| title_full | Yield and growth characteristics of sunflower sown from August to February in Santa Maria, RS |
| title_fullStr | Yield and growth characteristics of sunflower sown from August to February in Santa Maria, RS |
| title_full_unstemmed | Yield and growth characteristics of sunflower sown from August to February in Santa Maria, RS |
| title_short | Yield and growth characteristics of sunflower sown from August to February in Santa Maria, RS |
| title_sort | yield and growth characteristics of sunflower sown from august to february in santa maria rs |
| topic | Helianthus annuus L. épocas de semeadura condições meteorológicas |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662014000900005&lng=en&tlng=en |
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