CRESCIMENTO DO MELOEIRO ‘PELE DE SAPO’ IRRIGADO COM ÁGUA SALOBRA COM DIFERENTES ESTRATÉGIAS DE MANEJO
2014
CÍCERO PEREIRA CORDÃO TERCEIRO NETO | HANS RAJ GHEYI | JOSÉ FRANCISMAR DE MEDEIRO | NILDO DA SILVA DIAS | MAX VINÍCIUS TEIXEIRA DA SILVA | KEIVIANNE DA SILVA LIMA
The scarcity of good quality water in semiarid region has been the main limiting factor for in- creasing the irrigated area. However, due to greater availability of saline water, and reduced costs, when man- aged carefully, can be a viable alternative. The objective of this research was to study the effects of water use with low (S1 = 0,5 dS m-1) and high (S2 = 4,3 dS m-1) salt concentration on growth of melon plant. Melon (Cucumis melo L., cv Sancho) crop was irrigated with water of low and high salinity water under different management strategies: S1S2S2S2 – T1, S1S1S2S2 – T2, S1S1S1S2 – T3, S2S1S2S2 – T4, S2S1S1S2 – T5, S2S2S1S2 – T6 (the 1st, 2nd , 3rd and 4th term of these sequences correspond to different phases of crop – initial growth, flowering, fruit maturation and harvest, respectively), irrigation with S1 water throughout the crop cycle – T7 (control), varying the type of water every two days throughout the cycle (irrigation with S1 during 2 days fol- lowed by S2 1 day – T8 and with S2 during 2 days and followed by S1 1 day – T9) and irrigation with S2 water throughout the cycle - T10. The experiment was conducted in a completely randomized design with four replica- tions. The use of low and high salinity water applied in different phases of plant growth under different man- agement strategies did not affect the characteristics of melon cultivar Sancho. The cultivar Sancho tolerates irrigation water salinity up to 4,3 dS m-1, without any loss in growth and development.
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