scholarly journals Produtividade de tomate orgânico cultivado em diferentes ambientes e níveis de insumos

2016 ◽  
Vol 11 (4) ◽  
pp. 44
Author(s):  
Gisley Karoline Emerick Bitancourt Alves ◽  
Antônio Carlos Simões ◽  
Regina Lúcia Félix Ferreira ◽  
Sebastião Elviro Araújo Neto
Keyword(s):  
Block Design ◽  
Fruit Yield ◽  
Marketable Yield ◽  
Low Level ◽  
Ecological Farming ◽  
Field Environment ◽  
Randomized Complete Block Design ◽  
Tomato Cultivars ◽  
Marketable Fruit ◽  
Fruit Mass

A importância alimentar do tomate orgânico aliado a sua baixa produção na Amazônia e a necessidade de baixo uso de insumos para seu cultivo ecológico o objetivo deste trabalho foi avaliar a produtividade de cultivares de tomate orgânico cultivado em campo e ambiente protegido com alto e baixo nível de insumos. Os experimentos foram conduzidos em ambiente protegido e campo, ambos no delineamento em blocos casualizados completos, em esquema de parcelas subdivididas 2 x 3, sendo a parcela principal composta por dois níveis de insumos e a subparcela pelas cultivares copa (Santa Kruz Kada, IPA 6 e Santa Clara), com cinco repetições de cinco plantas cada. As variáveis avaliadas foram: massa média de frutos total e comercial (g fruto-1), número de frutos total e comercial por planta, produtividade total e comercial de frutos (kg ha-1). A cultivar IPA 6 em cultivo protegido exigiu maior uso de insumos para aumentar a massa média de fruto total e comercial, produtividade total e comercial, em campo pode se utilizar baixo nível de insumo. O alto uso de insumos é necessário para aumentar a produtividade total e comercial para a cv. Santa Clara em cultivo à campo, ambiente que também necessita de alto uso de insumos para aumentar a massa média de fruto total e comercial a produtividade comercial da cultivar Santa Kruz. Productivity of organic tomato grown in different environments and levels of inputsAbstract: The importance of organic tomato feed associated with their low production in the Amazon and the need for low input to its ecological farming the objective of this study was to evaluate the productivity of organic tomato cultivars grown in field and greenhouse with high and low level inputs. The experiments were conducted under greenhouse and field conditions, both in randomized complete block design comprising plots subdivided into subplots. The plots encompassed of two levels of inputs, while the subplots contained the (Santa Kruz Kada, 6 and IPA Santa Clara), with five replicates of five plants each. The variables evaluated were: total fruit mass and marketable fruit mass (g fruit-1), number of total and marketable fruit per plant, total and marketable fruit yield (kg ha-1). The cultivar IPA 6 in greenhouse demanded greater use of inputs to increase the total and marketable fruit mass, total and marketable yield in field can be used for low level input. The high use of inputs is necessary to increase the total and marketable yield for cv. Santa Clara in the growing field, environment which also requires high use of inputs to increase the total and marketable fruit mass, marketable fruit yield of cultivar Santa Kruz.

scholarly journals Participatory Varietal Evaluation of Rainy Season Tomato under Plastic House Condition

1970 ◽  
Vol 7 ◽  
pp. 11-15 ◽  
Author(s):  
YR Pandey ◽  
AB Pun ◽  
KP Upadhyuy
Keyword(s):  
Rainy Season ◽  
Block Design ◽  
Fruit Yield ◽  
Yield Potential ◽  
Research Journal ◽  
Randomized Complete Block Design ◽  
Hybrid Variety ◽  
Marketable Fruit ◽  
House Condition

Four tomato varieties namely LTH-61, Avinash-2, NSITH-162 and BL-410 were evaluated infarmer's field with farmers participation under plastic house condition for yield potential andother yield characters at Hemja, Kaski (920 masl) during rainy seasons of two consecutive years2002 and 2003. The experiment was arranged in randomized complete block design with 5replications, farmer as a replication. NSITH-162 took the shortest period of days to floweringand first harvest with an average of 36 and 66 days after transplanting respectively. Fruit setafter flowering was highest in NSITH-162 (93.9%) and the lowest in Avinash-2 (83.1%).NSITH-162 produced the highest marketable fruit yield (89.05 t/ha) and Avinash-2 produced thelowest (51.98 t/ha). The results of the experiment revealed that the hybrid varieties NSITH-162and LTH-61 have more yield potentiality than open pollinated variety BL-410 and Avinash-2 anIndian hybrid variety and therefore NSITH-162 variety could be recommended for commercialproduction under plastic house condition.Key words: Participatory; plastic house; rainy season; tomatoDOI: 10.3126/narj.v7i0.1860Nepal Agriculture Research Journal Vol.7 2006 pp.11-15

scholarly journals Ten Cycles of Recurrent Selection for Fruit Yield, Earliness, and Quality in Three Slicing Cucumber Populations

1996 ◽  
Vol 121 (3) ◽  
pp. 362-366 ◽  
Author(s):  
Todd C. Wehner ◽  
Christopher S. Cramer
Keyword(s):  
Recurrent Selection ◽  
Block Design ◽  
Total Yield ◽  
Fruit Shape ◽  
Fruit Yield ◽  
Randomized Complete Block Design ◽  
Sib Families ◽  
Population Improvement ◽  
Marketable Fruit ◽  
Made In

Fruit yield, earliness, and quality have low to moderate heritability, but are traits of major importance in cucumber (Cucumis sativus L.). The objective of this study was to determine the changes made in those traits using recurrent selection in three slicing cucumber populations (NCMBS, NCES1, and NCBA1). During population improvement, one or two replications of 200 to 335 half-sib families were evaluated in the spring season for five traits: total, early, and marketable fruit per plot, fruit shape rating, and a simple weighted index (SWI = 0.2(total yield)/2 + 0.3(early yield) + 0.2(% marketable)/10 + 0.3(fruit shape). Families from each population were intercrossed in an isolation block during the summer season using remnant seeds of the best 10% selected using the index. Response was evaluated using a split-plot treatment arrangement in a randomized complete block design with 32 replications in each of two seasons (spring and summer). Whole plots were the three populations, and subplots were the 11 cycles (cycles 0 to 9 plus checks). We measured improvement in performance of the populations in a selected (spring) and unselected environment (summer). Significant gains were made for all traits in all populations over the 9 to 10 cycles of recurrent selection. Greatest progress was made for the NCMBS population, with an average of 37% gain from cycle 0 to 9 over all five traits. The trait where most progress was made was early yield, with an average of 63% gain from cycle 0 to 9 over the three populations.

scholarly journals Evaluation of new genotypes of brinjal (Solacanum melongena L.) under tarai condition of Uttarakhand

2017 ◽  
Vol 9 (3) ◽  
pp. 1840-1843
Author(s):  
Arun Singh Chaudhary ◽  
S.P. Uniyal ◽  
Pooja Pandey
Keyword(s):  
Block Design ◽  
Solanum Melongena ◽  
Fruit Yield ◽  
Research Centre ◽  
Cropping Season ◽  
Randomized Complete Block Design ◽  
Commercial Cultivars ◽  
Fruit Borer ◽  
Marketable Fruit ◽  
Growth Characters

In order to assess the performance of some new genotypes of brinjal (Solanum melongena L.) under tarai condition of Uttarakhand, an investigation was carried out at Vegetable Research Centre, G. B. Pant University of Agriculture and Technology, Pantnagar, during autumn-winter cropping season of 2012-13. The experiment was laid out in Randomized Complete Block Design with 4 replications and 9 treatments viz. PB-300, PB-301, PB-302, PB-303, PB-304, PB-305, Kashi Tarun, Punjab Sadabahar and Pant Samrat. To have comparative study, growth characters, per cent fruit infested by fruit borer, fruit yield and finally economics were also worked out. The findings revealed that none of the new genotypes in this study could supersede the local checks in respect to yield related attributes, per cent infested fruit by borer and economics. Amongst 6 genotypes and 3 commercial cultivars, variety Kashi Tarun proved the best with respect to fruit yield (490.73 q/ha) and B:C (2.43). It is also less infested by fruit borer. The per cent infested fruit by borer was 7.16 %. Variety pant samrat and pant bahar were also considered promising with 385.70 and 369.33 q/ha marketable fruit yield.

scholarly journals Field Bio-Efficacy of Newer Insecticides against Eggplant Fruit and Shoot Borer, Leucinodes orbonalis Guenee

2015 ◽  
Vol 3 (4) ◽  
pp. 727-730
Author(s):  
Ram Prasad Mainali ◽  
Ram Babu Peneru ◽  
Padma Pokhrel ◽  
Yagya Prasad Giri
Keyword(s):  
Block Design ◽  
Insect Pest ◽  
Verticillium Lecanii ◽  
Marketable Yield ◽  
Shoot Borer ◽  
Leucinodes Orbonalis ◽  
Randomized Complete Block Design ◽  
Untreated Check ◽  
Lepidoptera Pyralidae ◽  
Marketable Fruit

Eggplant fruit and shoot borer (EFSB), Leucinodes orbonalis Guenee (Lepidoptera: Pyralidae) is a key insect pest of eggplant in all eggplant growing areas of Nepal. A field experiment was carried out in Khumaltar, Lalitpur during summer season of 2014 using eight treatments as, i) Abamectin 1.9 EC @ 1.5 ml/lit; ii) Spinosad 45 SL @ 0.25 ml/lit; iii) Emamectin Benzoate 5 SG @ 0.3 gm/lit; iv) Tozen @ 0.33 ml/lit; v) Karanjin 2 EC @ 2ml/lit; vi) Borer Gourd (Bacillus thuringiensis var. Kurstaki 108 CFU/ml + Beauveria bassiana 108 CFU/ml + Verticillium lecanii 108 CFU/ml + Metarhizium anisopliae 108 CFU/ml) @ 2 ml/lit; vii) Chlorantraniliprole 18.5 EC @ 0.25 ml/lit and viii) Untreated check to test efficacy of newer bio-rational insecticides against L. orbonalis. The treatments were arranged in randomized complete block design (RCBD) with three replications. The result showed that the fruit infestation percent on number and weight basis was significantly the lowest in Chlorantraniliprole (6.57 and 6.31) and Spinosad (12.08 and 11.15) treated plots as compared to other treatments. The Chlorantraniliprole treated plot recorded the maximum marketable yield (32.03 mt/ha) followed by Spinosad (30.93 mt/ha) with 34.39 percent and 29.77 percent increase in marketable fruit yield over untreated check, respectively. Hence, the use of Chlorantraniliprole and Spinosad could be one of the better options for effective management of L. orbonalis.Int J Appl Sci Biotechnol, Vol 3(4): 727-730

scholarly journals Performance of Three Selection Cycles from Four Slicing Cucumber Populations Hybridized with a Tester

1998 ◽  
Vol 123 (3) ◽  
pp. 396-400 ◽  
Author(s):  
Christopher S. Cramer ◽  
Todd C. Wehner
Keyword(s):  
Recurrent Selection ◽  
Block Design ◽  
Fruit Shape ◽  
Fruit Yield ◽  
Hybrid Performance ◽  
Breeding Method ◽  
Marketable Yield ◽  
Yield And Quality ◽  
Randomized Complete Block Design ◽  
Cucumber Cultivar

Recurrent selection has been used as a breeding method to improve traits having low heritability such as fruit yield, earliness, and fruit shape. The objective of this study was to measure the progress of recurrent selection in four slicing cucumber populations in terms of hybrid performance when crossed with a common tester. The four populations, North Carolina wide-base slicer (NCWBS), medium-base slicer (NCMBS), elite slicer 1 (NCES1), and Beit Alpha 1 (NCBA1) populations, which differed in their genetic diversity and mean performance, were developed using modified intrapopulation half-sib recurrent selection to improve fruit yield and quality. Eleven S0 families were taken randomly from each of three selection cycles (early, intermediate, and advanced) from each population. Those families were self-pollinated to form S1 families, and the S1 families were crossed to `Poinsett 76', a popular slicing cucumber cultivar. The experiment was a splitplot treatment arrangement in a randomized complete-block design with 22 replications per population, with the four populations as whole plots and the three cycles as subplots. When 10% of fruit were oversized (>60 mm in diameter), plants were sprayed with paraquat to defoliate them for once-over harvest. Plots were evaluated for total, early, and marketable yield and fruit shape. Recurrent selection for improved fruit yield and shape per se resulted in improved hybrid performance of the NCWBS and NCBA1 populations for fruit yield and shape rating when tested in the selected or nonselected environment. The NCWBS population had the largest gain (21%) in hybrid performance averaged over all traits. In addition, early yield was improved an average of 18% from early to late cycles for each population. Even though the fruit yield and shape rating of `Dasher II' was greater than the hybrid performance of each population mean for the same traits, several F1 families within each population exceeded the fruit yield of `Dasher II'.

scholarly journals Sweet pepper production in substrate in response to salinity, nutrient solution management and training system

2011 ◽  
Vol 29 (3) ◽  
pp. 275-281 ◽  
Author(s):  
José S Rubio ◽  
Walter E Pereira ◽  
Francisco Garcia-Sanchez ◽  
Luis Murillo ◽  
Antonio L García ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Fruit Quality ◽  
Block Design ◽  
Sweet Pepper ◽  
Training System ◽  
Fruit Yield ◽  
Salt Treatment ◽  
Hoagland Solution ◽  
Half Strength ◽  
Marketable Fruit

The objective of the present study was to evaluate the marketable fruit yield of sweet pepper plants (Capsicum annuum cv. Orlando) in function of the management of nutrient solution with training system. Plants were grown on coconut coir dust under greenhouse conditions in the southeast of Spain. A randomized block design in split-split plot with four blocks was used to test the effect of the nutrient solution strength (full or half-strength Hoagland nutrient solution), training system (two and three stems per plant) and water salinity (saline and non-saline) on total and marketable yield, fruit quality, and fruit mineral concentration. Salt treatment decreased fruit yield by decreasing the fruit fresh weight but not the number of fruits per plant. Under saline and non-saline conditions, the higher yield of fruits was obtained in plants watered with half-strength Hoagland solution, and grown with three stems per plant. Blossom end rot incidence increased under saline conditions or using full-strength Hoagland solution, but decreased with the combination of half-strength Hoagland solution and three-stem training system. Salt treatment also decreased fruit quality in all the treatments due to a decrease in PO2-, SO4(2-), Fe2+;3+, Cu1+;2+ and Mn2+ concentrations, and fruit shape index. Likewise, plants exposed to salinity and watered with half-strength Hoagland solution and trained with three stems showed a reduction in juice glucose and fructose concentration. Based on these results, an increase of the marketable fruit yield could be obtained under non or moderate saline conditions with the implementation of suitable culture practices.

scholarly journals Growth, mineral composition, fruit yield, and mycorrhizal colonization of feijoa in response to lime and phosphorus application

2016 ◽  
Vol 51 (8) ◽  
pp. 942-949 ◽  
Author(s):  
Gilberto Nava ◽  
Karine Louise dos Santos ◽  
Murilo Dalla Costa ◽  
Marlise Nara Ciotta
Keyword(s):  
Plant Growth ◽  
Mineral Composition ◽  
Block Design ◽  
Mycorrhizal Colonization ◽  
Fruit Yield ◽  
Tree Canopy ◽  
Phosphorus Fertilization ◽  
Randomized Complete Block Design ◽  
Acca Sellowiana ◽  
Phosphorus Application

Abstract: The objective of this work was to investigate the effect of liming and phosphorus fertilization on the growth, mineral composition of the leaves, fruit yield, and mycorrhizal colonization of young feijoa (Acca sellowiana) plants. Treatments consisted of four liming levels - 0, 25, 50, and 100% of the dose required to raise the soil pH to 6.5 - and of five levels of P - 0, 60, 120, 180, and 240 kg ha-1 P2O5 -, placed in a randomized complete block design, in a split-plot arrangement, with three replicates. The orchard was established in 2010 with the Helena cultivar. In 2012, 2013, and 2014, plant growth was evaluated by measuring trunk perimeter, plant height, and tree canopy width. Mineral composition of the leaves, regarding P, N, K, Ca, and Mg contents, was assessed annually. Mycorrhizal colonization was evaluated in 2012, and fruit yield was determined in 2014. No interaction was observed between the studied factors. P contents had no effect on the evaluated variables. Liming, however, increases plant growth, mycorrhizal colonization, fruit yield, and Ca and Mg leaf contents, besides reducing K leaf contents.

scholarly journals Effect of Zinc and Boron on Growth and Yield of Okra (Abelmoschus esculentus L.)

2020 ◽  
pp. 41-47
Author(s):  
Nusrat Jahan ◽  
Md. Ashabul Hoque ◽  
Md. Rasal-Monir ◽  
Sumya Fatima ◽  
Mohammad Nurul Islam ◽  
...  
Keyword(s):  
Dry Matter ◽  
Block Design ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Growth And Yield ◽  
Area Index ◽  
Spad Value ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Fruit Diameter

The study was carried out to find out the effect of zinc (Zn) and boron (B) on growth and yield of okra (BARI Dherosh 1). The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The treatments of the experiment were, T0 (without Zn or B), T1 (20 kg Zn ha-1), T2 (30 kg Zn ha-1), T3 (10 kg B ha-1), T4 (20 kg B ha-1), T5 (20 kg Zn ha-1 + 10 kg B ha-1), T6 (20 kg Zn ha-1 + 20 kg B ha-1), T7 (30 kg Zn ha-1 + 10 kg B ha-1) and T8 (30 kg Zn ha-1 + 20 kg B ha-1) were undertaken to evaluate the best results of the study. The highest plant height was found in T8 (30 kg Zn ha-1 + 20 kg B ha-1) but the highest number of leaves plant-1 was recorded from T7 (30 kg Zn ha-1 + 10 kg B ha-1). On the other hand, the maximum leaf area index, SPAD value, mean fruit weight, fruit length, fruit diameter, fruit dry matter (%), number of fruits plant-1, fresh fruit weight plant-1 , fruit yield plot-1 and fruit yield ha-1 were found in T7 (30 kg Zn ha-1 + 10 kg B ha-1), while the control (T0) showed lowest performance for the respected parameters. It is strongly concluded that 30 kg Zn ha-1 with 10 kg B ha-1 combination may be helpful for okra cultivation in the field level to increase okra production.

scholarly journals Control of Armyworms on Bell Pepper in West-Central Florida, Fall 1993

1995 ◽  
Vol 20 (1) ◽  
pp. 103-103
Author(s):  
David J. Schuster
Keyword(s):  
Block Design ◽  
Fine Sand ◽  
Beet Armyworm ◽  
Larval Feeding ◽  
Feeding Damage ◽  
Central Florida ◽  
Randomized Complete Block Design ◽  
Fruit Wall ◽  
Pepper Weevil ◽  
Marketable Fruit

Abstract Transplants were set 10 Sep 12 inches apart on 8-inch-high beds of EauGallie fine sand covered with white polyethylene mulch. Each plot consisted of a single row of 12 plants with rows on 5 ft centers. Treatments were replicated 4 times in a randomized complete block design and applied with a 2.5 gal, hand-held CO2-powered sprayer on 28 Sep, 4, 11, 18, 25 Oct, 3, 10, 15, 22, 29 Nov, 6, 13, 20, 27 Dec, 5, 11, 19, and 26 Jan. The sprayer was outfitted with a single nozzle with a D-5 disk and #45 core and delivered 100 gpa at 60 psi. On 22 Oct and 15 Nov, each plot was rated for increasing percentage of defoliation by beet armyworm larvae using the Horsfall-Barratt scale. With this scale, ratings of 1-12 corresponded to 1-100% defoliation. Fruit were harvested on 18, 30, Nov, 9, 23 Dec, 6 Jan, and 2 Feb and the number and weight of undamaged fruit and the number of fruit damaged by beet armyworm larvae were determined, fruit with slight feeding damage only on the stem or calyx were considered marketable. Fruit with any damage on the fruit wall were considered unmarketable. Fruit also were examined for the presence of oviposition scars on the outside of the fruit and for the presence of larval feeding damage on the inside of the fruit caused by the pepper weevil.

scholarly journals DENSELY PLANTED OKRA FOR DESTRUCTIVE HARVEST

HortScience ◽  
1995 ◽  
Vol 30 (3) ◽  
pp. 438a-438
Author(s):  
Yaying Wu ◽  
Brian A. Kahn ◽  
John B. Solie
Keyword(s):  
Plant Density ◽  
Fruit Weight ◽  
High Density ◽  
Fruit Yield ◽  
Abelmoschus Esculentus ◽  
Mature Fruit ◽  
Marketable Yield ◽  
Harvest Timing ◽  
Plant Arrangement ◽  
Marketable Fruit

We are developing a mechanical harvest system for okra [Abelmoschus esculentus (L.) Moench]. Our objective was to identify a high-density (HD) plant arrangement and a harvest timing that would maximize marketable fruit yield per hectare with a destructive harvest. We compared destructively harvested plants grown at spacings of (in cm) 15 × 15, 23 × 23, and 30 × 30 with hand-harvested plants grown at 90 × 23 cm. Within HD treatments, marketable fruit weight increased inconsistently as plant density increased. The 30 × 30-cm spacing was not dense enough. Branching decreased and the position of the first marketable fruit attachment moved up as plant density increased. Delaying destructive harvest until many over-mature fruit were present often did not increase marketable fruit yield and always reduced the proportion of total harvested fruit weight due to marketable fruit. Overall, percentages of marketable yield obtained by destructive harvests of HD plants were low compared to the cumulative marketable yield from control plants. However, the labor-saving potential was high. A prototype machine for harvest of HD okra has been developed, and further testing is planned.

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