Growth and production of irrigated vitória pineapple grown in semi-arid conditions
This study aimed to evaluate the growth characteristics of irrigated Vitória pineapple plants grown in semi-arid conditions and determine its developmental stages based on those characteristics. It was used a randomized block design with four replicates. The experimental treatments were: plant harvest at 270, 330, 390, 450, 510, 570, 690, 750, and 810 days after planting (DAP). The following variables were determined: plant height, stem diameter, D-leaf length, D-leaf fresh and dry mass, biomass production of plants and plant parts (organs), and vegetative biomass. Five phenological stages are proposed based on vegetative biomass production: < 20% biomass production (V1); 21-40% (V2); 41-60% (V3); 61-80% (V4); and > 80% (V5). The maximum growth rate for plant height, D-leaf length, and stem diameter was observed at the end of the phenological stage V1 (390-411 DAP), and at the end of stage V5 these plant traits had average values of 106, 82, and 7 cm, respectively. The maximum biomass accumulation rates were observed at stages V4 and V5, resulting in a final fruit yield and total fresh biomass of 72 t ha-1 and 326 t ha-1, respectively. Finally, we estimated that 80% of the accumulated biomass may remain in the field after fruit and slip harvest, and could be incorporated as plant residue into the soil.
Main Authors: | Pegoraro,Rodinei Facco, Souza,Bruna Aparecida Madureira de, Maia,Victor Martins, Amaral,Uirá do, Pereira,Marlon Cristian Toledo |
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Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Fruticultura
2014
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000300022 |
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