scholarly journals Response of young 'Tahiti' lime trees to different irrigation levels

2011 ◽  
Vol 31 (2) ◽  
pp. 303-314 ◽  
Author(s):  
José Alves Júnior ◽  
Marcos V. Folegatti ◽  
Cláudio R. da Silva ◽  
Tonny J. A. da Silva ◽  
Adão W. P. Evangelista
Keyword(s):  
Root Growth ◽  
Fruit Quality ◽  
Root Distribution ◽  
Tree Height ◽  
Irrigation Level ◽  
Trunk Diameter ◽  
Acid Lime ◽  
Irrigation Levels ◽  
Swingle Citrumelo

The aim of this study was to evaluate the effect of different irrigation levels on canopy and root growth, productivity, and fruit quality of young ‘Tahiti’ acid lime trees. The experiment was installed in Piracicaba, Brazil in a 1.0-ha orchard plot with ‘Tahiti’ acid lime trees, grafted on ‘Swingle’ citrumelo rootstock and carried out from August of 2002 to May 2005. Each treatment was assigned to a drip irrigation level, based on ETc as follows: T1) non-irrigated, T2) 25%, T3) 50%, T4) 75% and T5) 100% of ETc determined by weighing lysimeter presented in the orchard plot. Trunk diameter and tree height were evaluated monthly. The roots were evaluated when the trees were 30 and 48 months old. The yield and fruit quality was evaluated in 2004 and 2005. The results showed that irrigation did not influence root distribution in depth, and trees irrigated with 75% and 100% ETc showed horizontal root distribution concentrated until 0.6 m from the trunk. Irrigation did not improve the quality of fruit. Yield increased in all irrigated treatment, but the most efficient yield mean per unit of water applied was the 25% ETc treatment.

scholarly journals Productivity and Fruit Quality of Manzanello and Picual Olive (Olea europaea L.) Cultivars as Influenced by Spraying Lithovit under Different Irrigation Levels

2020 ◽  
pp. 1-11
Author(s):  
I. M. Dobiea ◽  
H. E. M. El-Badawy ◽  
A. A. H. Hegazy ◽  
S. F. El-Gioushy
Keyword(s):  
Water Stress ◽  
Fruit Quality ◽  
Olea Europaea ◽  
High Stress ◽  
Olive Tree ◽  
Physical Characteristics ◽  
Irrigation Level ◽  
Irrigation Levels ◽  
Olea Europaéa

Olive tree is the favorable choice to cultivate in desert lands due to high stress tolerance of its tree. Although olive tree tolerates the low availability of water in the soil by means of morphological, physiological and biochemical adaptations, the Productivity and fruit quality of it decrease gradually with increasing water stress. So we have initiated this study to follow up the effect of spraying Lithovit (Ca CO3 & Mg CO3) on the productivity and fruit quality of Picual and Manzanello olives which exposure to different irrigation levels. Four concentrations of Lithovit were sprayed on olive (Olea europaea var. Manzanello) trees (0, 2, 4 and 6 g/L) under three irrigation levels (50, 75 and 100% of evapotranspiration for crop “ETc”) during 2017, 2018 seasons. Spraying Lithovit at 6 g/L recorded the highest values of all fruit physical characteristics of both cultivars in the two seasons. Furthermore, 2 g/L had the highest values of retained fruit percentage of both cultivars which led to increase the yield in the first and second seasons. Concerning irrigation levels, the values of fruit physical characteristics of both cultivars were the lowest values with applying 50% of ETc irrigation level. These values increased with decreasing water stress in the first and second seasons. Concerning retained fruit percentage and yield of Picual and Manzanello, the most promising level of irrigation was 75% of ETc level because it recorded the highest values of yield. Moreover 100% of ETc enhanced the fruit quality.

scholarly journals Effects of Various Quantities of Three Irrigation Water Types on Yield and Fruit Quality of ‘Succary’ Date Palm

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 796
Author(s):  
Mohamed A. Mattar ◽  
Said S. Soliman ◽  
Rashid S. Al-Obeed
Keyword(s):  
Soil Water ◽  
Fruit Quality ◽  
Irrigation Water ◽  
Deficit Irrigation ◽  
Date Palm ◽  
Saline Water ◽  
Irrigation Level ◽  
Water Types ◽  
Palm Trees

A field experiment was conducted on date palm trees (Phoenix dactylifera ‘Succary’) cultivated on sandy loam soil from 2017 to 2018. This study investigated the effects of providing water of three different qualities, namely freshwater (FR) and two saline water sources: reclaimed wastewater (RW) and well-water (WE) applied through three irrigation levels representing 50% (I50), 100% (I100), and 150% (I150) of crop evapotranspiration (ETc), on the soil water and salt distribution patterns, yield, water productivity (WP), and fruit quality of the ′Succary′ date palm. The electrical conductivity (ECw) of FR, RW, and WE were 0.18, 2.06, and 3.94 dS m−1, respectively. Results showed that WE applied by the I150 treatment had the highest soil water content, followed by RW used in the I100 irrigation level and FR with I50, whereas the soil salt content was high for WE applied in the I50 level and low for FR applied by the I150 treatment. Deficit irrigation (I50) of date palms with either RW or WE reduced date yields on average 86 kg per tree, whereas the yield increased under over-irrigation (I150) with FR to 123.25 kg per tree. High WP values were observed in the I50 treatments with FR, RW, or WE (on average 1.82, 1.68, and 1.67 kg m−3, respectively), whereas the I150 treatment with each of the three water types showed the lowest WP values. Fruit weight and size were the lowest in the full irrigation (I100) with WE, whereas the I150 treatment with RW showed the highest values. There were no significant differences in either total soluble solids (TSS) or acidity values when the irrigation level decreased from 100% to 50% ETc. Compared with both I50 and I100 treatments, reduced values of both TSS and acidity were observed in the I150 treatment when ECw decreased from 3.94 to 0.18 dS m−1,. Fruit moisture content decreased with the application of saline irrigation water (i.e., RW or WE). Total sugar and non-reducing sugar contents in fruits were found to be decreased in the combination of RW and I150, whereas the 50% ETc irrigation level caused an increment in both parameters. These results suggest that the application of deficit irrigation to date palm trees grown in arid regions, either with FR or without it, can sufficiently maximize WP and improve the quality of fruits but negatively affects yield, especially when saline water is applied. The use of saline water for irrigation may negatively affect plants because of salt accumulation in the soil in the long run.

scholarly journals Soil Characterization, Leaf Nutritional Status and Fruit Quality of Acid Lime Orchards in Patur Block of Akola District, Maharashtra

2020 ◽  
pp. 93-102
Author(s):  
Priya S. Gadge ◽  
S. N. Ingle ◽  
M. M. Raut ◽  
N. M. Konde ◽  
D. V. Mali ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Nutritional Status ◽  
Fruit Quality ◽  
Soil Depth ◽  
Free Calcium ◽  
Soil Reaction ◽  
Soil Characterization ◽  
Fruit Samples ◽  
Acid Lime

The present investigation on “Soil characterization, leaf nutritional status and fruit quality of Acid Lime orchards in Patur block of Akola district” was undertaken during the year 2018-19. Twenty healthy lime orchards were selected on the basis of their yield performance and visual observations from five locations of Patur block viz., Wadegaon, Sasti, Patur, Mazod and Goregaon. The study was framed to evaluate the soil characteristics, leaf nutritional status and fruit quality of Acid Lime. Twenty soil samples were collected from 0-30 and 30-60 cm depth in randomly selected acid lime orchards. Similarly, the leaf and fruit samples were collected and analyzed for quality parameters. The results indicated that, the soil reaction was neutral to slightly alkaline with pH value varied from 7.35 to 8.14, EC ranges from 0.23 to 0.32 dS m-1 indicating the non-saline nature of these soils. Free calcium carbonate varied from 5.63 to 9.42%, Organic carbon showed decreasing trend with soil depth and having medium to moderately high in organic carbon. The available nitrogen was found to be low to medium, phosphorus was low, potassium was high to very high and sulphur was low to moderate. The DTPA extractable micronutrients in soil were moderately high in zinc, iron, copper and manganese. The leaf nutrient status was found to be low to optimum in total nitrogen, phosphorus and micronutrient and optimum to high in potassium. Fruits of acid lime were found to be of good quality. Since, the correlations obtained in the present studies did not show any consistent trend.

scholarly journals Yield and quality of melon under silicon doses and irrigation management in a greenhouse

2018 ◽  
Vol 48 (2) ◽  
pp. 140-146
Author(s):  
Cláudia Salim Lozano ◽  
Roberto Rezende ◽  
Tiago Luan Hachmann ◽  
Fernando André Silva Santos ◽  
Marcelo Zolin Lorenzoni ◽  
...  
Keyword(s):  
Nutrient Management ◽  
Block Design ◽  
Irrigation Management ◽  
Soluble Solids ◽  
Irrigation Level ◽  
Yield And Quality ◽  
Randomized Block Design ◽  
Maturation Index ◽  
Irrigation Levels

ABSTRACT The netted melon requires special growing conditions, including a protected environment, an adequate staking system and proper water and nutrient management. This study aimed to assess the effect of irrigation levels and silicon doses on the yield and quality of Sunrise hybrid melons, in a greenhouse. A randomized block design was used, with a 5 x 3 factorial scheme and four replications. The first factor consisted of five silicon doses (0 kg ha-1, 50 kg ha-1, 100 kg ha-1, 150 kg ha-1 and 200 kg ha-1) and the second of three irrigation levels (40 %, 70 % and 100 % of the ETc). The results demonstrated that the applied irrigation levels and silicon doses have no influence on the yield traits of melon plants. The irrigation level corresponding to 100 % of the ETc promotes higher values for soluble solids (9.86 ºBrix) and maturation index (114.9) on fruits. The increase of silicon doses up to 200 kg ha-1 also increases the maturation index in the treatment with the greatest irrigation level and reduces this index at the shallowest level applied.

scholarly journals DISTRIBUIÇÃO DO SISTEMA RADICULAR DE PLANTAS JOVENS DE LIMA ÁCIDA ‘TAHITI’ SOB DIFERENTES NÍVEIS DE IRRIGAÇÃO

Irriga ◽  
2004 ◽  
Vol 9 (3) ◽  
pp. 270-281 ◽  
Author(s):  
José Alves Júnior ◽  
Mateus Dos Santos Lourenção ◽  
Tonny José Araújo da Silva ◽  
Cláudio Ricardo da Silva ◽  
Marcos Vinícius Folegatti
Keyword(s):  
Root System ◽  
Root Distribution ◽  
Irrigation Management ◽  
Horizontal Distribution ◽  
Crop Evapotranspiration ◽  
Citrus Latifolia ◽  
Citrus Root ◽  
Acid Lime ◽  
Irrigation Levels ◽  
Different Levels

DISTRIBUIÇÃO DO SISTEMA RADICULAR DE PLANTAS JOVENS DE LIMA ÁCIDA ‘TAHITI’ SOB DIFERENTES NÍVEIS DE IRRIGAÇÃO   José Alves Júnior; Mateus dos Santos Lourenção; Tonny José Araújo da Silva; Cláudio Ricardo da Silva; Marcos Vinícius FolegattiDepartamento de Engenharia Rural, Escola Superior de Agricultura “ Luiz de Queiroz”, Universidade de São Paulo, Piracicaba-SP, [email protected]   1 RESUMO  O objetivo deste estudo foi avaliar a distribuição do sistema radicular de lima ácida ‘Tahiti’ (Citrus latifolia Tan), irrigada por gotejamento, sob o efeito de diferentes lâminas de irrigação em condições de campo. O delineamento experimental foi inteiramente casualizado em duas repetições com arranjo fatorial de cinco lâminas de irrigação (0%; 25%; 50%; 75% e 100% da evapotranspiração da cultura medida em um lisímetro de pesagem), duas profundidades (0,0-0,3 e 0,3-0,6 m) e quatro pontos de amostragem (0,3; 0,6; 0,9 e 1,2 m de distância do tronco). A análise foi realizada em um pomar com 30 meses de idade e 17 meses de fornecimento das diferentes lâminas de irrigação. Os resultados mostraram que não houve diferenças entre as lâminas quanto à distribuição das raízes em profundidade, concentrando-se na camada de 0,0-0,3m. Entretanto, a distribuição horizontal foi maior nos níveis baixos (0%; 25% e 50%) do que nos maiores níveis (75% e 100%). Nas plantas irrigadas com 75% e 100% houve concentração das raízes até 0,6 m, indicando que o déficit hídrico induziu o crescimento horizontal das raízes.  UNITERMOS: citros; raiz; manejo da irrigação; Citrus latifolia Tan   ALVES JUNIOR, J.; LOURENÇÃO, M.S.; SILVA, T.J.A.; SILVA, C.R.; FOLEGATTI, M.V. ROOT SYSTEM DISTRIBUTION OF YOUNG ‘TAHITI’ ACID LIME TREES UNDER DIFFERENT LEVELS OF IRRIGATION   2 ABSTRACT  The aim of this study was to evaluate the root system distribution of young ‘Tahiti’ (Citrus latifolia Tan) acid lime irrigated by drip system under field conditions. The experiment was carried out in a factorial design with two replications that consisted of five levels of irrigation (0%, 25%, 50%, 75% and 100% of crop evapotranspiration measured by a weighing lysimeter) and two depths (0.,0-0.3 and 0.3-0.6 m) as well as four horizontal sample points (0.3; 0.6; 0.9 and 1.2 m of distance from trunk). The analysis was carried out in a 30-month-old orchard and  17 months after the beginning of irrigation levels. The results showed that there were no differences in root distribution as to depths, most of them at 0.0-0.3m. However, the horizontal distribution was bigger at lower levels (0, 25 and 50%) than in the highest levels (75 and 100%). In the latter, root concentration reached up to 0.6m, indicating that water stress induced the root growth horizontally  KEYWORDS: citrus; root; irrigation management; Citrus latifolia Tan

scholarly journals Vegetative development and production of ‘Tahiti’ acid lime clone selections grafted on different rootstocks

2020 ◽  
Vol 42 (3) ◽  
Author(s):  
Andréia Lopes de Morais ◽  
Moises Zucoloto ◽  
Renan Garcia Malikouski ◽  
Dimmy Herllen Silveira Gomes Babosa ◽  
Orlando Sampaio Passos ◽  
...  
Keyword(s):  
Block Design ◽  
Productive Efficiency ◽  
Vegetative Development ◽  
Randomized Block Design ◽  
Vegetative Traits ◽  
Citrus Production ◽  
Acid Lime ◽  
Cultivated Species ◽  
Swingle Citrumelo

Abstract Brazil accounts for a large percentage of the world’s citrus production, with ‘Tahiti’ acid lime tree standing out among several cultivated species. However, its cultivation is supported by a very narrow genetic base, being composed of few scion and rootstock options. In this way, the aim of this study was to evaluate the vegetative development and production of twelve ‘Tahiti’ acid lime clones on two rootstocks. The experiment was carried out at Fazenda José Guarete, municipality of São Mateus – ES. A randomized block design was used in the split plot scheme, with plot consisting of two rootstocks and subplot of the twelve ‘Tahiti’ acid lime clones. Traits evaluated were: vegetative development, production and productive efficiency, internal and external quality of fruits. Bello Fruit, Iconha, BRS Passos, Itarana, Persian 58, CNPMF 5059 and Elédio clones were superior in terms of production, vegetative traits and fruit quality. ‘Swingle’ citrumelo rootstock showed higher values for vegetative traits compared to ‘Riverside’ citrandarin. The clone and rootstock combinations that provided better agronomic performance in this study were BRS Passos, Bello Fruit, Elédio and Iconha grafted on ‘Swingle’ citrumelo and CNPMF 5059, Iconha and Elédio grafted on ‘Riverside’ citrandarin.

scholarly journals Comparison of Growth, Yield, and Fruit Quality of Pot-planted Mango cv. Aikou Using Own-rooted Trees Propagated by Air Layering and Grafted Trees Propagated by Conventional Methods

HortScience ◽  
2019 ◽  
Vol 54 (7) ◽  
pp. 1175-1180 ◽  
Author(s):  
Masahiko Fumuro
Keyword(s):  
Fruit Quality ◽  
Mangifera Indica ◽  
Growth Yield ◽  
Tree Height ◽  
Rooted Trees ◽  
Underground Part ◽  
Aboveground Part ◽  
R Ratio ◽  
Conventional Methods

To determine the potential of using own-rooted trees to lower tree height and delay the decline in tree vigor caused by root clogging, the growth, yield, and fruit quality of pot-planted ‘Aikou’ mango (Mangifera indica L.) trees propagated by air layering and grafting were observed for 8 years after planting. The trunk diameter of the own-rooted trees propagated by air layering (hereafter abbreviated as own-rooted trees) was significantly smaller than that of the grafted trees propagated by conventional methods (hereafter abbreviated as grafted trees), but there were no significant differences in the scion diameters of the grafted trees. Moreover, no significant differences were observed in leaf number or total length of green branches between the own-rooted and grafted trees during the final 3 years. The height of the own-rooted trees was significantly shorter than that of the grafted trees. Although no difference in the fresh or dry weight of the aboveground part and whole tree was observed between the own-rooted and grafted trees, the fresh and dry weights of the underground part of the own-rooted trees were significantly lower than those of the grafted trees. Furthermore, the T-R ratio (the weight of the aboveground part of the tree excluding the leaves/the weight of the underground part of the tree) of the own-rooted trees was significantly higher than that of the grafted trees. Overall, no significant differences in yield or fruit quality were observed between the two tree types, and the average yield per 1 m2 over 6 years was 2.9–3.1 kg. These results indicate that it may be possible to lower tree height, delay the decline in tree vigor caused by root clogging, and prolong the life span of pot-planted trees by using own-rooted trees.

scholarly journals Production and initial growth of forest species seedlings using sewage sludge and automated irrigation

2021 ◽  
Vol 45 ◽  
Author(s):  
Daniel Fonseca de Carvalho ◽  
Mateus Marques Bueno ◽  
Paulo Sérgio dos Santos Leles ◽  
João Felício Gonçalves Abreu ◽  
Rosaria da Costa Faria Martins ◽  
...  
Keyword(s):  
Irrigation Management ◽  
Early Growth ◽  
Quality Data ◽  
Initial Growth ◽  
Forest Species ◽  
Irrigation Level ◽  
Schizolobium Parahyba ◽  
Collar Diameter ◽  
Irrigation Levels

ABSTRACT Traditionally, irrigation management has not been used in forest nurseries, compromising the efficiency of the system and the quality of seedlings. In this study, we evaluated the quality of seedlings under different irrigation levels and the substrate composed of pure biosolid, and the initial growth of three Atlantic Forest tree species, produced with automated irrigation management. Four irrigation levels (V1 to V4) were applied by dripping on Schizolobium parahyba (Vell.) Blake, Cytharexyllum myrianthum Chamiáo and Ceiba speciosa Ravenna seedlings. After that, the seedlings were planted to evaluate their early growth in pots. The water was applied in response to species requirement and the volume was measured by water flow sensors, connected to an Arduino MEGA board. Height, collar diameter, leaf area, dry mass and chlorophyll content measurements were used to assess plant development on the seedling and early growth stages. Seedlings that received the highest average volume of water (V4) had a higher rate of growth in height and collar diameter for the three species studied. Despite this, the seedlings that received a smaller volume of water (V1) achieve similar size than V4 ones in pots. The plant growth and quality data, in the two phases analyzed, together with the aggregation of the substrate, indicate that the ideal irrigation level is linked to treatments that received the highest volumes of water (V3 and V4) in the seedling production phase. The results obtained indicate that it is possible to save water and produce seedlings of forest species with quality, ensuring their survival in the field.

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