Physiological characteristics and yield of ‘Pérola’ pineapple in the semi-arid region1

Brito, Cleiton F. B.; Santos, Marcelo R. dos; Fonseca, Varley A.; Arantes, Alessandro de M.; Almeida, Jean R. de

doi:10.1590/1807-1929/agriambi.v21n12p834-839

ARTICLE • Rev. bras. eng. agríc. ambient. 21 (12) • Dec 2017 • https://doi.org/10.1590/1807-1929/agriambi.v21n12p834-839 linkcopy

Physiological characteristics and yield of ‘Pérola’ pineapple in the semi-arid region¹

Características fisiológicas e produtividade de abacaxizeiro ‘Pérola’ na região semiárida

Authorship SCIMAGO INSTITUTIONS RANKINGS

The objective of this study was to evaluate the physiological characteristics and yield of ‘Pérola’ pineapple subjected to irrigation with saline water in the semi-arid region of Bahia. The experiment was conducted in randomized blocks with five treatments, represented by irrigation depths: 100% ETc, using water with electrical conductivity (ECw) of 0.75 dS m^-1, and 50, 75, 100 and 125% ETc, using water with ECw of 3.6 dS m^-1. The experiment used a drip irrigation system and pressure-compensating emitters with a discharge of 8 L h^-1. In the physiographic conditions of Guanambi-BA, pineapple has limitations of the physiological characteristics of chlorophyll fluorescence and chlorophyll index, under irrigation with both saline water and better-quality water. The irrigation depth corresponding to 100% ETc using water with ECw levels of 0.75 and 3.6 dS m^-1 led to the best yields.

Key words:
salinity; CAM plants; irrigation management

Months	Fv/Fm		Y_PSII
Months	8 h	14 h	8 h	14 h
Aug/15	0.49 Bb	0.63 Aa	0.28 Cb	0.35 Ba
Sep/15	0.50 Bb	0.55 Ca	0.30 Ba	0.28 Ca
Oct/15	0.47 Cb	0.57 Ba	0.25 Cb	0.34 Ba
Nov/15	0.59 Aa	0.55 Cb	0.38 Aa	0.36 Ba
Dec/15	0.49 Ba	0.50 Da	0.32 Ba	0.31 Ca
Feb/16	0.59 Aa	0.59 Ba	0.38 Aa	0.28 Cb
Mar/16	0.51 Bb	0.63 Aa	0.27 Cb	0.47 Aa
Apr/16	0.51 Bb	0.61 Aa	0.27 Cb	0.36 Ba
May/16	0.50 Bb	0.59 Ba	0.28 Cb	0.36 Ba
Jun/16	0.51 Bb	0.58 Ba	0.23 Db	0.37 Ba
Jul/16	0.48 Cb	0.53 Ca	0.22 Db	0.33 Ba
Aug/16	0.45 Cb	0.55 Ca	0.19 Db	0.31 Ca
Sep/16	0.48 Ca	0.50 Da	0.22 Da	0.19 Da
CV (%)	15.6		39.37

Months	Chlorophyll a	Chlorophyll b	Chlorophyll Total	Chlorophyll a/b
Aug/15	34.50 B	22.36 B	56.86 C	1.56 C
Sep/15	36.27 A	24.58 B	60.85 B	1.48 D
Oct/15	32.61 C	20.92 B	53.54 C	1.58 C
Nov/15	38.33 A	27.92 A	66.26 A	1.38 D
Dec/15	33.56 B	19.02 C	52.50 C	1.86 B
Jan/16	34.41 B	19.35 C	53.76 C	1.84 B
Feb/16	37.08 A	23.06 B	60.15 B	1.63 C
Mar/16	35.29 B	21.56 B	56.85 C	1.66 C
Apr/16	33.92 B	19.70 C	53.62 C	1.80 B
May/16	31.51 C	15.92 D	47.40 D	2.05 B
Jun/16	36.29 A	19.73 C	56.02 C	1.89 B
Jul/16	35.48 B	19.37 C	54.85 C	1.85 B
Aug/16	27.12 D	11.60 E	38.73 E	2.51 A
Sep/16	35.27 B	19.11 C	54.38 C	1.94 B
CV (%)	11.56	21.18	14.6	15.45

Months	Leaf area index (m² m^-2)
Months	100% ETc (ECw = 0.75 dS m^-1)	50% ETc (ECw = 3.6 dS m^-1)	75% ETc(ECw = 3.6 dS m^-1)	100% ETc(ECw = 3.6 dS m^-1)	125% ETc (ECw = 3.6 dS m^-1)
Aug/15	0.44 Ca	0.52 Ba	0.50 Ba	0.43 Ba	0.50 Aa
Sep/15	0.44 Ca	0.52 Ba	0.50 Ba	0.43 Ba	0.50 Aa
Oct/15	0.54 Ca	0.60 Ba	0.55 Ba	0.58 Ba	0.61 Aa
Jan/15	0.79 Ca	0.67 Ba	0.58 Ba	0.64 Ba	0.55 Aa
Feb/16	1.17 Ba	0.94 Aa	0.97 Aa	0.92 Aa	0.90 Aa
Apr/16	1.10 Ba	0.18 Bb	1.19 Aa	0.83 Aab	1.11 Aa
May/16	1.67 Aa	1.01 Aab	1.01 Aab	1.11 Aab	0.79 Ab
Jun/16	2.00 Aa	1.04 Ab	1.19 Ab	1.21 Ab	0.90 Ab
Jul/16	2.00 Aa	0.97 Ab	1.08 Ab	1.11 Ab	0.92 Ab
Aug/16	1.60 Aa	0.91 Ab	0.95 Ab	1.01 Aab	0.78 Ab
Sep/16	1.76 Aa	1.00 Ab	1.16 Aab	1.07 Aab	0.80 Ab
CV (%)	36.36

Irrigation depths	Yield (kg ha^-1)	FW+C	FW-C(g)	CW	FL+C	FL-C	CL	FD
Irrigation depths	Yield (kg ha^-1)	(g)			(cm)
100% ETc (ECw = 0.75 dS m^-1)	14475.5 a	518.41 a	442.00 a	76.80	25.07	10.62 a	14.45	8.02
50% ETc (ECw = 3.6 dS m^-1)	5157.0 b	189.99 b	137.98 b	52.00	19.80	6.86 ab	12.94	5.82
75% ETc (ECw = 3.6 dS m^-1)	5947.5 b	225.72 ab	158.00 b	67.29	21.81	7.14 ab	14.66	6.10
100% ETc (ECw = 3.6 dS m^-1)	6916.5 ab	266.08 ab	200.62 ab	65.46	22.74	7.97 ab	14.78	6.59
125% ETc (ECw = 3.6 dS m^-1)	2711.0 b	133.28 b	90.55 b	42.73	15.43	4.54 b	10.89	4.35
CV (%)	50.87	52.78	59.31	40.88	31.16	30.45	32.85	28.44

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[TFN01] *Means followed by same letters, uppercase in the columns for months, belong to a same cluster by the criterion of Scott-Knott at 0.05 probability level, and lowercase in the row for times, do not differ significantly by F test at 0.05 probability level