Biomass of sugar-apple seedlings under saline water irrigation in substrate with polymer
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Data
2018-09-01
Autores
Silva, Aldeir R.
Bezerra, Francisco T. C.
Cavalcante, Lourival F.
Pereira, Walter E.
Araujo, Leandro M. [UNESP]
Bezerra, Marlene A. F.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Univ Federal Campina Grande
Resumo
Application of saline water causes water and salt stress, changing the behavior of the plants. 1 e aim of this work was to evaluate the accumulation and allocation of biomass in sugarapple seedlings under frequencies of irrigation with saline water in a substrate with soil conditioner, as well as the effect of container volume. The treatments were obtained from the arrangement between polymer doses (0, 0.2, 0.6, 1.0 and 1.2 g dm(-3) ) and electrical conductivity of irrigation water (0.3; 1.1; 2.7; 4.3 and 5.0 dS m(-1)), associated with irrigation frequencies (daily and alternated), plus two additional treatments to evaluate container volume (0.75 and 1.30 dm(3) ), distributed in blocks. The evaluations were performed at 120 days after sowing. Irrigation frequency affected the variables, and the highest values were obtained with daily irrigation, except for root/shoot dry matter ratio. Increase in the electrical conductivity of the irrigation water inhibited biomass accumulation. The effect of the container was significant for daily irrigation; higher volume led to higher root, shoot and total biomass. Polymer doses did not affect the biomass of the seedlings. Daily irrigation with non-saline water favored biomass production in sugar-apple seedlings. In the production of sugar-apple seedlings, water with electrical conductivity below 1.0 dS m(-1) should be used on a daily frequency of application in 1.30 dm(3) containers.
Descrição
Palavras-chave
Annona squamosa, volume of containers, saline stress, irrigation interval
Como citar
Revista Brasileira De Engenharia Agricola E Ambiental. Campina Grande Pb: Univ Federal Campina Grande, v. 22, n. 9, p. 610-615, 2018.