GROWTH AND POST-HARVEST FRUIT QUALITY OF WEST INDIAN CHERRY UNDER SALINE WATER IRRIGATION AND POTASSIUM FERTILIZATION

LIMA, GEOVANI SOARES DE; PINHEIRO, FRANCISCO WESLEY ALVES; GHEYI, HANS RAJ; SOARES, LAURIANE ALMEIDA DOS ANJOS; SILVA, SAULO SOARES DA

doi:10.1590/1983-21252020v33n321rc

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Agricultural Engineering • Rev. Caatinga 33 (3) • Jul-Sep 2020 • https://doi.org/10.1590/1983-21252020v33n321rc copy

GROWTH AND POST-HARVEST FRUIT QUALITY OF WEST INDIAN CHERRY UNDER SALINE WATER IRRIGATION AND POTASSIUM FERTILIZATION

CRESCIMENTO E QUALIDADE PÓS-COLHEITA DE FRUTOS DE ACEROLEIRA IRRIGADA COM ÁGUAS SALINAS E ADUBAÇÃO POTÁSSICA

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The study was conducted to evaluate the growth and physicochemical quality of West Indian cherry cv. BRS 366-Jaburu, as a function of saline water irrigation and potassium fertilization. The research was conducted under greenhouse conditions in Campina Grande-PB. The experimental design was randomized blocks in a 2 x 4 factorial arrangement, which consisted of two levels of irrigation water electrical conductivity - ECw (0.8 and 3.8 dS m^-1) and four levels of potassium of 50, 75, 100 and 125% of the recommendation, in which the dose of 100% was equivalent to 19.8 g of K₂O per plant year^-1, with three replicates and one plant per replicate. Water salinity of 3.8 dS m^-1 inhibited the absolute and relative growth in diameter of the rootstock and scion of West Indian cherry plants, in the period from 100 to 465 days after transplanting. The interaction between saline levels and potassium doses was significant for hydrogen potential, soluble solids and anthocyanins levels in BRS 366-Jaburu West Indian cherry fruits, with the highest values obtained in plants fertilized with 125, 125 and 50% of the K₂O recommendation and under water salinity of 3.8, 3.8 and 0.8 dS m^-\ respectively. Increasing doses of K did not attenuate the effects of salt stress on the relative growth in rootstock stem diameter, fruit polar diameter and anthocyanin contents of West Indian cherry. Soluble solid contents in West Indian cherry pulp increased with application of K₂O.

Keywords:
Malphigia emarginata ; Salt stress; Mitigation; Potassium

Source of variation	DF	Mean squares
Source of variation	DF	AGR_DR	RGR_DR	AGR_DS	RGR_DS
Saline levels (SL)	1	0.00032 **	0.00000008 ^ns	0.00042 **	0.000001 *
K dose (KD)	3	0.00002 ^ns	0.0000002 *	0.00004 ^ns	0.0000001 ^ns
Linear regression	1	0.00003 ^ns	0.000001 **	0.00001 ^ns	0.0000001 ^ns
Quadratic regression	1	0.000009 ^ns	0.0000001 ^ns	0.00009 ^ns	0.0000001 ^ns
Interaction (SL x KD)	3	0.000015 ^ns	0.00000001 ^ns	0.0000003 ^ns	0.000000001 ^ns
Blocks	2	0.000007 ^ns	0.000000002 ^ns	0.0000002 ^ns	0.00000001 ^ns
Residue	14	0.000017	0.0000002	0.00001	0.0000001
CV (%)		7.18	4.81	7.94	6.94

Source of variation	DF		Mean squares
Source of variation	DF	FED	FPD	pH	ANT	SS
Saline levels (SL)	1	28.12 *	69.08 **	0.70 *	0.73 **	16.83 **
K dose (KD)	3	1.41 ^ns	9.15 *	0.22 ^ns	0.06 *	1.91 **
Linear regression	1	3.05 ^ns	26.22 **	0.62 *	0.02 ^ns	4.21 **
Quadratic regression	1	0.02 ^ns	0.82 ^ns	0.04 ^ns	0.17 *	0.003 ^ns
Interaction (SL x KD)	3	0.35 ^ns	5.14 *	0.26 *	0.12 *	0.61 **
Blocks	2	0.93 ^ns	0.05 ^ns	0.05 ^ns	0.02 ^ns	0.003 ^ns
Residue	14	2.06	1.06	0.04	0.02	0.003
CV (%)		7.88	4.57	5.76	40.53	0.75

Universidade Federal Rural do Semi-Árido Avenida Francisco Mota, número 572, Bairro Presidente Costa e Silva, Cep: 5962-5900, Telefone: 55 (84) 3317-8297 - Mossoró - RN - Brazil
E-mail: caatinga@ufersa.edu.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] *Corresponding author