scholarly journals Physiological characteristics and yield of ‘Pérola’ pineapple in the semi-arid region

2017 ◽  
Vol 21 (12) ◽  
pp. 834-839 ◽  
Author(s):  
Cleiton F. B. Brito ◽  
Marcelo R. dos Santos ◽  
Varley A. Fonseca ◽  
Alessandro de M. Arantes ◽  
Jean R. de Almeida
Keyword(s):  
Arid Region ◽  
Saline Water ◽  
Irrigation System ◽  
Physiological Characteristics ◽  
Drip Irrigation System ◽  
Quality Water ◽  
Irrigation Depth ◽  
Chlorophyll Index ◽  
Semi Arid Region ◽  
Semi Arid

ABSTRACT 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.

scholarly journals ÍNDICES FISIOLÓGICOS E CRESCIMENTO DE PORTA-ENXERTOS DE CAJUEIRO SOB ESTRESSE SALINO E CONCENTRAÇÕES DE PROLINA

Irriga ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 169-183
Author(s):  
Leandro de Pádua Souza ◽  
Reginaldo Gomes Nobre ◽  
Hans Raj Gheyi ◽  
Reynaldo Teodoro De Fátima ◽  
Geovani Soares de Lima ◽  
...  
Keyword(s):  
Arid Region ◽  
Saline Water ◽  
Block Design ◽  
Anacardium Occidentale ◽  
Physiological Indices ◽  
Randomized Block Design ◽  
Quality Water ◽  
Semi Arid Region ◽  
E Mail ◽  
Semi Arid

ÍNDICES FISIOLÓGICOS E CRESCIMENTO DE PORTA-ENXERTOS DE CAJUEIRO SOB ESTRESSE SALINO E CONCENTRAÇÕES DE PROLINA     LEANDRO DE PÁDUA SOUZA1; REGINALDO GOMES NOBRE2; HANS RAJ GHEYI1; REYNALDO TEODORO DE FATIMA1; GEOVANI SOARES DE LIMA1 E GENILSON LIMA DINIZ3   1 Programa de Pós-Graduação em Engenharia Agrícola, Universidade Federal de Campina Grande, Aprígio Veloso, 882, Universitário, 58428-830, Campina Grande, Paraíba, Brasil. E-mail:. [email protected]; [email protected]; [email protected]; [email protected] 2 Departamento de Ciências e Tecnologia (DCT), Universidade Federal Rural do Semi-árido. Centro Multidisciplinar de Caraúbas, BR 233, km 01, Sítio Esperança II, Zona rural, Caraúbas - RN, CEP 59780-000. E-mail: [email protected] 3 Unidade Acadêmica de Ciências Agrárias, Universidade Federal de Campina Grande, Jairo Vieira Feitosa, 1770, Pereiros, 58840-000, Pombal, Paraíba, Brasil. E-mail. [email protected]     1 RESUMO   Na região semiárida a baixa disponibilidade de água de boa qualidade tem se tornado um sério problema para expansão da agricultura, sendo necessário o uso de água com teores elevados de sais. Neste contexto, objetivou-se avaliar os índices fisiológicos e crescimento de clones de cajueiro submetidos à diferentes salinidades da água e aplicação exógena de prolina. O trabalho foi conduzido em condições de casa de vegetação em delineamento de blocos casualizados, distribuídos em fatorial 5 x 4 x 2, correspondente a cinco níveis de condutividades elétricas da água - CEa (0,3; 1,0; 1,7; 2,4 e 3,1 dS m-1), quatro concentrações de prolina - CP (0; 4; 8 e 12 mM) e dois clones de cajueiro (CCP 76 e Faga 11) com três repetições e duas plantas por parcela. A irrigação com água salina limita os índices fisiológicos dos porta-enxertos de cajueiro, no entanto, a CEa de até 2,3 dS m-1 promoveu reduções aceitáveis de menos de 10% nestas variáveis. O clone CCP 76 se destacou apresentando maior alocação de fitomassa seca de folha. A aplicação de prolina na concentração de 7,4 mM promoveu maior alocação de fitomassa seca de caule dos porta-enxertos de cajueiro irrigados com águas salinas.   Palavras-chave: Anacardium occidentale L., escassez hídrica, atenuante     SOUZA, L. de P; NOBRE, R. G; GHEYI, H. R; FATIMA, R. T. de; LIMA, G. S. de; DINIZ, G. L. PHYSIOLOGICAL INDICES AND GROWTH OF CASHEW CLONES UNDER SALT STRESS AND PROLINE APPLICATION     2 ABSTRACT   In the semi-arid region, the low availability of good quality water has become a serious problem for the expansion of agriculture, requiring the use of water with high levels of salts. In this context, this study aimed to evaluate the physiological indices and growth of cashew clones subjected to different salinity of water and exogenous application of proline. The study was conducted under greenhouse conditions in a randomized block design, distributed in a factorial 5 x 4 x 2, corresponding to five levels of electrical conductivity of the water - ECw (0.3; 1.0; 1.7; 2.4 and 3.1 dS m-1), four proline concentrations - PC (0; 4; 8 and 12 mM) and two cashew clones (CCP 76 and Faga 11) with three replicates and two plants per plot. Irrigation with saline water limits the physiological indices of cashew rootstocks; however, ECw up to 2.3 dS m-1 promoted acceptable reductions of less than 10% in these variables. Clone CCP 76 stood out with greater allocation of phytomass. The application of proline at a concentration of 7.4 mM promoted a greater allocation of stem dry phytomass of the cashew rootstocks irrigated with saline water.   Keywords: Anacardium occidentale L., water scarcity, mitigating

scholarly journals Institutional Performance of Irrigation System in Spatial Dimensions in Semi-Arid Region Timor Island East Nusa Tenggara

2021 ◽  
Vol 04 (06) ◽  
Author(s):  
Ida Nurwiana ◽  
Keyword(s):  
Surface Water ◽  
System Performance ◽  
Arid Region ◽  
Irrigation System ◽  
Institutional Performance ◽  
Irrigation Systems ◽  
Irrigation Area ◽  
Main System ◽  
Semi Arid Region ◽  
Semi Arid

Thirty-four percent (34.40%) of irrigation areas in Indonesia are under the authority of the central government, 17.89% under the authority of the provincial government and 47.71% are under the authority of the District/Municipality government. Various efforts have been made by the government to improve the performance of surface water irrigation systems that cover 78% of the total irrigation area, however, the performance did not improve significantly. One of the cause is due to the damage of national surface water canals that affect the performance of the irrigation system. The purpose of this study was to analyze the factors that influence the institutional performance of the irrigation system in the spatial dimension in the semi-arid region of Timor Island, East Nusa Tenggara. The spatial approach of the Geographically Weighted Regression (GWR) method was chosen as an alternative approach in the analysis of irrigation system performance because it considers the variability of hydrogeological characteristics and the performance of different irrigation systems in each irrigation area based on their authority. The results of this study indicated that the total cropping intensity had a significant effectand decreased the performance of the irrigation system. The higher rice productivity and the maintenance frequency of the main system (headworks and canals) would improve the performance of the irrigation system. Meanwhile, the lower damage rate of the main system would improve the performance of the irrigation system. Irrigation area under the authority of district/municipality had a lower/worse irrigation system performance than those under the authority of provincial and central governments.

scholarly journals Yield of prickly pear cactus irrigated with saline water in soils of the semi-arid region

2022 ◽  
Vol 43 (1) ◽  
pp. 37-50
Author(s):  
Washington Benevenuto de Lima ◽  
◽  
Jucilene Silva Araújo ◽  
Lúcia Helena Garófalo Chaves ◽  
Múcio Freire Vieira ◽  
...  
Keyword(s):  
Arid Region ◽  
Saline Water ◽  
Prickly Pear ◽  
Growth And Yield ◽  
Fresh Weight ◽  
Experimental Conditions ◽  
Prickly Pear Cactus ◽  
Semi Arid Region ◽  
Pear Cactus ◽  
Semi Arid

Knowing the tolerance of plants grown in the Brazilian semi-arid region to salt stress is of paramount importance for the sustainability of regional agriculture. This study was developed to examine the growth and yield of prickly pear cactus ‘Orelha de Elefante Mexicana’ (Opuntia stricta Haw) irrigated with increasing water salinity levels (0.75, 3.0, 5.25 and 7.50 dS m-1 to 25 ºC) and grown on soils representative of the Brazilian semi-arid region (chromic Luvisol, Solonetz and Fluvisol). Total fresh weight decreased linearly, with a 21.42% reduction when we compare the average fresh weight per plant in the lowest and highest saline level treatments. The chromic Luvisol and Solonetz soils showed the best fresh weight and dry matter yields under the present experimental conditions.

scholarly journals Spatial Dimensions of Irrigation System Performance Status in The Semi Arid Region of Timor Island, East Nusa Tenggara, Indonesia

2021 ◽  
Vol 04 (06) ◽  
Author(s):  
Ida Nurwiana ◽  
Keyword(s):  
Performance Index ◽  
System Performance ◽  
Arid Region ◽  
Central Government ◽  
Irrigation System ◽  
Spatial Diversity ◽  
Irrigation Systems ◽  
The Status ◽  
Semi Arid Region ◽  
Semi Arid

One aspect that plays an important role in the performance of irrigation systems is the institutional division of irrigation areas' authority covering the authority of district/municipality, provincial and the central government. This study aimed to assess how the institutional division of irrigation areas' authority affect the performance of irrigation systems, to reclassifies the standard of performance index of irrigation systems, to analyze the status of irrigation system performance in 6 districts/municipalities in the semi arid region of Timor Island, East Nusa Tenggara based on their authority and mapping of spatial diversity. This study used descriptive statistical method through the performance index of irrigation systems in 6 districts/ municipalities. This study concluded that the status of the irrigation system performanceof 6 districts/municipalities in the semi arid region of Timor Island increased along with the level of irrigation systems' authority. The best Status of the performance of irrigation systems in 6 districts/municipalities was Malaka District Irrigation System, the performance tended to be better in the irrigation system under the authority of central government that administratively placed in one district/municipality (non cross district irrigation system). Based on the analysis of the status of irrigation system performance in 6 districts/municipalitiesin Timor Island, a specific step for each district/municipality to adjust the location characteristics with policies can be taken to overcome irrigation systems' problems in the semi arid regions of Timor Island.

scholarly journals Water and nitrogen water use efficiency in forage palm irrigated with salt water in the Neossolo

2020 ◽  
pp. 683-690
Author(s):  
Patrícia Ferreira da Silva ◽  
Rigoberto Moreira de Matos ◽  
José Dantas Neto ◽  
Vitória Ediclécia Borges ◽  
Thiago Galvão Sobrinho ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Nitrogen Fertilization ◽  
Arid Region ◽  
Saline Water ◽  
Salt Water ◽  
Nitrogen Use ◽  
Nitrogen Levels ◽  
Use Efficiency ◽  
Semi Arid Region ◽  
Semi Arid

The objectives were to analyze the water and nitrogen use efficiency by forage palm in different irrigation depths with saline water and nitrogen fertilization levels in the Brazilian semi-arid region. The experiment was conducted under field condition during one year of cultivation (360 days). The experimental design was a complete randomized block and 5 x 5 factorial scheme with five irrigation depths (125, 100, 75, and 25% of ET0) and five levels of nitrogen fertilization (0, 150, 300, 450 and 600 kg ha-1 of N) and three replicates. Irrigation and acceptable nitrogen fertilization resulted in a good water and fertilization management. Water and nitrogen use efficiency of forage palm were higher, when water depths and the nitrogen levels supplied to the soil were increased. The 125% ET0 depth showed a higher efficiency of water and nitrogen use in the forage palm during 360 days of study. In conditions of low nitrogen supply, the efficiency of nitrogen use is directly and indirectly associated with the fresh mass yield; while under high supply, the efficiency of the use of nitrogen is more effective. The use of irrigation and nitrogen fertilization in the semi-arid region is recommended to obtain higher productivity of water and nitrogen from the forage palm.

scholarly journals Author Correction: Deficit saline water irrigation under reduced tillage and residue mulch improves soil health in sorghum-wheat cropping system in semi-arid region

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pooja Gupta Soni ◽  
Nirmalendu Basak ◽  
Arvind Kumar Rai ◽  
Parul Sundha ◽  
Bhaskar Narjary ◽  
...  
Keyword(s):  
Arid Region ◽  
Saline Water ◽  
Soil Health ◽  
Cropping System ◽  
Reduced Tillage ◽  
Saline Water Irrigation ◽  
Semi Arid Region ◽  
Semi Arid

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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