Management strategies of saline water on morphometric characteristics of melon cultivars

Engenharia Agrícola

José F. De Medeiros²  Cícero P. Cordão Terceiro Neto¹  Hans R. Gheyi¹  Nildo Da S. Dias¹  Mariana S. De M. Souza¹  Rauny O. De Souza¹ 

[1] ,UFERSA Departamento de Ciências Ambientais e Tecnológicas Engenharia Mossoró RN

关键词: Cucumis melo L.;    irrigation water quality;    growth analysis;    Cucumis melo L.;    Qualidade da água de irrigação;    Análise de crescimento;   

DOI  :  10.1590/S0100-69162014000400005

来源: SciELO

【 摘 要 】

It was to aimed it to investigate effects of various saline water use strategies on melon production and quality of two cultivars (Cucumis melo L., Sancho - C1 and Medellín - C2. The plants were irrigated with water of low (S1 = 0.61 dS m-1) and high (S2 = 4.78 dS m-1) salinity levels, during each crop stage: S1S1S2S2 - T1; S2S1S2S2 - T2; S2S2S1S2 - T3. The 1st, 2nd, 3rd and 4th terms of these sequences correspond to initial growth, flowering, fruit ripening and harvest phenological stages, respectively. Additionally, there was irrigation rotation during all cycle, with water S1 during two days followed by S2 for one day (S1 2 dias + S2 1 dia - T4) and irrigation with non-salt water S2 during all cycle - T5. Moreover, we used as control, the irrigation water at 3.2 dS m-1 resulting from water mixture of S1 and S2 - T6 (farm used irrigation management). The experiment was carried out in Pedra Preta Farm, in Mossoró, RN, using an entire randomized block statistical design in a 6x2 subdivided plot scheme with four replications. Saline water irrigation at initial growth stage reduces leaf area and shoot dry phytomass of Sancho and Medellín melon cultivars. The irrigation by T4 provided the highest phytomass production of fruits at 48 DAS, reducing in 33% of good quality water in irrigation.

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