Yield characteristics of cherry tomato cultivated with and without shading screen at different irrigation levels

Santiago, Edgo Jackson Pinto; Oliveira, Gertrudes Macário de; Leitão, Mário de Miranda Vilas Boas Ramos; Rocha, Ruy de Carvalho; Pereira, Allan Victor Araújo

doi:10.1590/1983-40632018v4853064

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Scientific Articles • Pesqui. Agropecu. Trop. 48 (4) • Oct-Dec 2018 • https://doi.org/10.1590/1983-40632018v4853064 copy

Yield characteristics of cherry tomato cultivated with and without shading screen at different irrigation levels

Características de rendimento de tomate cereja cultivado com e sem tela de sombreamento e diferentes lâminas de irrigação

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The use of shading screen in vegetable crops sensitive to the radiation excess, associated with the effective water use via irrigation, allows for yield gains. This study aimed to evaluate the yield characteristics of cherry tomato cultivated with and without shading screen and different irrigation levels. A randomized block design was used, in a 4 x 2 factorial arrangement, with four irrigation levels (140 %, 160 %, 180 % and 200 % of the reference evapotranspiration - ETo) and two cherry tomato hybrids (Wanda and Dolcetto). The irrigation level corresponding to 200 % of the ETo provided the highest values for number of flowers and clusters formed, number of fruits per plant and fruit diameter. The Wanda hybrid was more fruitful, with a higher emission of clusters, while Dolcetto was more floriferous. The use of shade screen for cultivating cherry tomato provides an increase in the yield characteristics, if compared to the cultivation in open areas.

KEYWORDS:
Solanum lycopersicum; shading; effective water use

Source of variation		DAT
Source of variation		44	57
Hybrid	Wanda	18.91 A^* * Means followed by the same uppercase letter in the column, for each source of variation and period, do not differ from each other using the Tukey test at 5 % of probability.	51.24 A
Hybrid	Dolcetto	14.30 B	42.40 B
Environment	Shaded	20.74 A
Environment	Open	12.46 B

Source of variation		DAT
Source of variation		44	57
Hybrid	Wanda	26.71 B^* * Means followed by the same uppercase letter in the column, in each period and for each source of variation, do not differ from each other using the Tukey test at 5 % of probability.	68.97 B
Hybrid	Dolcetto	36.79 A
Environment	Shaded	39.17 A
Environment	Open	24.33 B

Source of variation		DAT
Source of variation		44	57
Hybrid	Wanda	4.60 A^* * Means followed by the same uppercase letter in the column, in each period and for each source of variation, do not differ from each other using the Tukey test at 5 % of probability.	10.30 A
Hybrid	Dolcetto	1.55 B	7.03 B
Environment	Shaded	4.16 A	9.94 A
Environment	Open	1.99 B	7.40 B

DAT	Environment	Hybrids
DAT	Environment	Wanda	Dolcetto
44	Shaded	6.61 Aa^* * Means followed by the same uppercase letter in the column or lowercase letter in the row, at each period, do not differ statistically using the Tukey test at 5 % of probability.	1.72 Ab
44	Open	2.59 Ba	1.38 Aa
57	Shaded	13.03 Aa	6.84 Ab
57	Open	7.58 Ba	7.23 Aa

Source of variation		Fruit diameter (mm)
Source of variation		Transverse	Longitudinal
Hybrid	Wanda	14.85 A^* * Means followed by the same uppercase letter in the column, for each source of variation, do not differ from each other using the Tukey test at 5 % of probability.	14.08 B
Hybrid	Dolcetto	11.52 B	17.82 A
Environment	Shaded	12.82 A	15.23 B
Environment	Open	13.55 A	16.66 A

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[TFN1] ^*
Means followed by the same uppercase letter in the column, for each source of variation and period, do not differ from each other using the Tukey test at 5 % of probability.