Evaluation of yield and other agronomic traits in pepper (Capsicum chinense Jacq.) under open-field conditions in the humid tropics

2019 ◽  
Vol 96 (1) ◽  
pp. 16-26
Author(s):  
Khalil Ali ◽  
◽  
Pathmanathan Umaharan ◽  
Richard Brathwaite ◽  
Winston Elibox
Keyword(s):  
Open Field ◽  
Agronomic Traits ◽  
Block Design ◽  
Fruit Weight ◽  
Field Conditions ◽  
Capsicum Chinense ◽  
Wet Season ◽  
Field Station ◽  
Early Vigour ◽  
The University

Sixty-eight pepper (Capsicum chinense Jacq.) accessions were evaluated for yield (measured as total number of fruits per plant and total fruit weight per plant) and 15 other traits under open-field conditions in two trials, one conducted in the dry (Trial-1) and the other in wet season (Trial-2) of 2014. Each trial was set in a randomized complete block design with three replications (20 plants per replicate) at The University of the West Indies Field Station, Mount Hope, Trinidad and Tobago. There were significant differences (p < 0.01 to 0.001) among the accessions for all traits except plant height, plant canopy width in Trial-1, and early vigour in Trial-2. Total number of fruits per plants was weakly correlated (r = 0.37 in Trial-1, r = 0.45 in Trial-2; p < 0.01 to 0.001) with total fruit weight per plant, but was strongly associated with number of fruits per plant in the first and second 5 pickings (r = 0.78 to 0.97, p < 0.001) and moderately negatively correlated (r = -0.33 to -0.56, p < 0.01 to 0.001) with fruit width and average fruit weight. Total fruit weight per plant was positively associated with fruit weight per plant in the first and second 5 pickings (r = 0.66 to 0.89, p < 0.001), and negatively correlated (r = -0.41 to -0.69, p < 0.001) with days to 50% flowering and fruiting. A comparison of linear regression lines showed that the relative ranking of the accessions over seasons did not change for days to 50% flowering and fruiting, fruit weight per plant in the second 5 pickings, total fruit weight per plant and fruit width. The implications of these results are discussed.

scholarly journals Performance Evaluation of Exotic and Local Landraces of Tomatoes for the Mid-Hill Conditions of Nepal

2021 ◽  
Vol 9 (8) ◽  
pp. 1426-1435
Author(s):  
Tek Prasad Gotame ◽  
Ishwori Prasad Gautam ◽  
Dipendra Ghimire ◽  
Surendra Lal Shrestha
Keyword(s):  
Virus Infection ◽  
Open Field ◽  
Block Design ◽  
Field Conditions ◽  
High Yield ◽  
Research Centre ◽  
Group Method ◽  
Potential Yield ◽  
Plant Vigour ◽  
Horticultural Traits

The productivity of tomato in Nepal is very low due to lack of high yielding, disease and pests resistant varieties. An experiment was carried out to evaluate horticultural traits of 50 genotypes obtained from World Vegetable Centre (WorldVeg), Taiwan and SAARC region, and local collections during March to August 2020 in open field conditions at National Horticulture Research Centre, Khumaltar, Lalitpur. The objectives were to identify promising open-pollinated tomato cultivars for high yield, appropriate fruit size, and disease resistant. The experiment was carried out in a randomized complete block design with three replications. Results showed significant differences in yield and yield attributing characters including virus infection. The highest yield (39.6 mt ha-1) was produced by HRA43 and it was followed by HRA33 (26.4 mt ha-1). Among the WorldVeg OP lines, AVTO1429 produced the highest yield (16.21 mt ha-1) and it was followed by AVTO1717 (12.95 mt ha-1), AVTO0922 (11.83 mt ha-1) and AVTO1219 (11.7 mt ha-1) respectively. Most of the WorldVeg lines performed better than the check variety ‘Pusa Ruby’. Genotype HRA43, Red Local and Sindhupalchock Local were not affected by virus while Yellow Local showed 3.3% infection. Among the WorldVeg lines, AVTO1712 (20%), AVTO1717 (20%) and AVTO1718 (13%) and AVTO1219 (15%) showed less than 20% virus infection in the open field conditions. Cluster analysis using the unweighted paired group method with arithmetic mean showed that cluster-1 was the largest cluster comprised of 40 genotypes followed by cluster-2 and cluster-4. Genotypes from cluster-4 showed the higher fruit yield (25.1 mt ha-1) and resistant to the virus and the highest number of fruits per plot (1978 in 4.5 m2 area). The yield was low in cluster-1 which could be due to the heavy rainfall during the vegetative and reproductive stages. Genotypes Red Local and Sindhupalchock Local could be used in future tomato breeding program due to their resistant to TYLCV, higher potential yield and highest plant vigour in open field conditions at the mid-hill of Nepal. Considering the overall performance, genotype HRA43, HRA33 and AVTO1429 were promising lines with performance for yield and other horticultural traits.

scholarly journals Evaluating Performance of Cherry and Slicer Tomato Cultivars in Greenhouse and Open Field Conditions: Yield and Fruit Quality

HortScience ◽  
2021 ◽  
pp. 1-8
Author(s):  
Hardeep Singh ◽  
Bruce Dunn ◽  
Niels Maness ◽  
Lynn Brandenberger ◽  
Lynda Carrier ◽  
...  
Keyword(s):  
Open Field ◽  
Block Design ◽  
Tomato Fruit ◽  
Fruit Size ◽  
Field Conditions ◽  
Cherry Tomato ◽  
Production Type ◽  
Lycopene Content ◽  
Tomato Cultivars ◽  
Field Production

Tomato (Solanum lycopersicum L.) is one of the most extensively cultivated horticultural crops in the world. Factors such as yield, size, taste, and lycopene content are important criteria that may impact the selection of tomato cultivars for different production systems. The aim of the current study was to evaluate different slicer and cherry tomato cultivars for production under greenhouse and open field conditions. Three cultivars of slicer (BHN 964, Trust, and Geronimo) and cherry (BHN 268, Favorita, and Sakura) tomatoes were tested using randomized complete block design in 2019 and 2020. Results showed that the performance of tested cultivars differed under greenhouse verses open field conditions. Among cherry tomato cultivars in 2020, BHN 268 and Sakura produced significantly greater yield under open field conditions, while under greenhouse conditions yield of BHN 268 was the lowest. Similarly, cherry tomato fruit size from ‘BHN 268’ and ‘Sakura’ was also significantly greater than ‘Favorita’ under field conditions, whereas under greenhouse conditions, the fruit size of ‘Sakura’ was significantly greater than both ‘BHN 268’ and ‘Favorita’. Among slicer tomato cultivars, BHN 964 produced significantly greater yield and had a greater average fruit size than the other two cultivars under greenhouse conditions in 2020 while, Geronimo produced significantly similar or larger yield and had a similar average fruit size compared with BHN 964 under open field conditions. Tomatoes produced under open field conditions were rated significantly greater for taste compared with those produced under greenhouse conditions. Lycopene content in both slicer and cherry tomato cultivars was influenced by the interaction of production type, cultivars, and harvest time. Therefore, it can be concluded that BHN 964 and Geronimo were the highest in lycopene among slicer tomato cultivars for greenhouse and open field production, respectively. Among cherry tomato cultivars, BHN 268 was the highest in lycopene for open field production and Sakura for greenhouse production. Additionally, open field–produced tomatoes taste better than greenhouse-produced tomatoes, but lycopene content may be constrained for mid- and late-season fruits due to high temperature conditions under open field conditions.

scholarly journals Genetic Variability of Eggplant Germplasm Evaluated under Open Field and Glasshouse Cropping Conditions

Agronomy ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 436 ◽  
Author(s):  
Nur Nadzirah Mat Sulaiman ◽  
Mohd Y. Rafii ◽  
Janejira Duangjit ◽  
Shairul Izan Ramlee ◽  
Chalermpol Phumichai ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Open Field ◽  
Analysis Of Variance ◽  
Agronomic Traits ◽  
Block Design ◽  
Solanum Melongena ◽  
Selection Criterion ◽  
Group Method ◽  
Group I ◽  
Significant Difference

Knowledge of agro-morphological genetic variation and cropping conditions on vegetative and yield-related traits plays a significant role in varietal improvement and production of eggplant (Solanum melongena L.). Following this premise, the current study was conducted to critically asses the genetic variation of 29 eggplant accessions by using agro-morphological characterization evaluated under two cropping conditions, namely, glasshouse and open field. The experiments were laid out in randomized complete block design (RCBD) with three replications. Data on vegetative and yield characteristics were collected and subjected to analysis of variance (ANOVA) using SAS 9.4, while variance components were estimated manually. The results obtained from the analysis of variance indicated a highly significant difference (p ≤ 0.01) for all characteristics studied in both cropping conditions. The evaluated accessions were grouped into six major clusters based on agro-morphological traits using Unweighted Pair Group Method with Arithmetic mean (UPGMA) dendrogram. Hence, crosses between group I with VI or V could be used to attain higher heterosis and vigor among the accessions. Also, this evaluation could be used as a selection criterion for important yield agronomic traits in eggplant. The methodology and the approaches used may provide a model for the enhancement of other vegetable crop diversity towards adaptability to the cropping condition decision. This result displayed importance for preserving eggplant germplasm for future varietal development and revealed that open field cropping condition is more suitable under Malaysia’s agroecology.

Comparative performance and heterosis in single, three-way and double cross pepper hybrids

2004 ◽  
Vol 142 (6) ◽  
pp. 659-663 ◽  
Author(s):  
L. F. GELETA ◽  
M. T. LABUSCHAGNE
Keyword(s):  
Block Design ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Hybrid Breeding ◽  
Yield Potential ◽  
Comparative Performance ◽  
Breeding Selection ◽  
The University ◽  
Selection Of ◽  
Double Cross

Eight single, six three-way and six double cross hybrids were evaluated with a standard control to assess their yield potential and agronomic performance. The study was conducted in the field and greenhouse using a randomized complete block design with three replications at the University of the Free State during 2002/03. The three categories of hybrids performed differently and showed high variation for the majority of characters studied. Three-way cross hybrids showed better performance for days to flowering (70·9 days after sowing), fruit diameter (3·2 cm) and fruit weight (30·3 g/fruit). As expected, single cross hybrids were the most uniform followed by three-way cross hybrids. Three-way cross hybrids showed 36·1 and 13·6% heterosis for fruit yield and fruit length, respectively. Higher mean heterosis for fruit yield (35·6%), fruit number (24·0%) and fruit weight (16·9%) was also observed in double cross hybrid. This study shows that three-way and double cross hybrids can be used in pepper hybrid breeding. Selection of inbred lines for crossing from a similar market group can decrease heterogeneity in these categories of hybrids.

scholarly journals Phenotypic Performance of Kanesia-10 Cotton (Gossypium hirsutum L.) Variety Through the Use of Liquid Organic Fertilizers in Low Land

2019 ◽  
Vol 4 (1) ◽  
pp. 38-44
Author(s):  
Mayasari Yamin ◽  
Rahman Hairuddin ◽  
Nining Triani Thamrin ◽  
Eka Suddartik
Keyword(s):  
Textile Industry ◽  
Fiber Quality ◽  
Block Design ◽  
Organic Fertilizer ◽  
Genetic Material ◽  
Fruit Weight ◽  
Organic Fertilizers ◽  
Cotton Variety ◽  
Randomized Block Design ◽  
The University

The program of cotton variety improvement is carried out by increasing the productivity and quality of fiber in order to rise the competitiveness of cotton farming through the production of fiber quality that is in accordance with the demand of export-oriented national textile industry. This study aimed to determine the performance of the Kanesia-10 cotton phenotype cultivated using liquid organic fertilizer in the lowlands and obtain the best concentration of liquid organic fertilizer in improving Kanesia 10 cotton performance. This research was conducted in Experimental Farm of the Faculty of Agriculture of the University of Cokroaminoto Palopo from August to November 2018. The genetic material used was Kanesia 10 cotton variety for its fiber content of 27.2%, production of 2.457,2 kg cotton seed per hectare and fiber uniformity of 83,3-84,6%. This study used a randomized block design consisting of five treatments and four times. The treatment used was control (P0), 50 ml/L POC of gamal leaves (P1), and 100 ml/L of gamal leaves (P2) 150 ml/L POC of gamal leaves (P3), and 200 ml/L POC of gamal leaves (P4), so that there were 20 experimental units. The use of liquid organic fertilizer produces heterogeneous phenotypic performance for the parameters of the number of fruits per plot with a diversity coefficient value reaching 32.93%. The treatment of liquid organic fertilizer with a concentration of 50 ml / L resulted in the performance of plant height, number of leaves, number of fruits per plot, and the best fruit weight per plot with a mean of 64.13 cm, 57.75 strands, 43.00 fruits and 7.60 g, respectively

scholarly journals Response of Cherry Tomato [Solanum lycopersicum L. var. cerasiforme (Dunnal) A. Gray] to Varied Levels of Nitrogen and Phosphorus Fertigation under Open Field and Polyhouse Conditions

2021 ◽  
Vol 9 (3) ◽  
pp. 1-6
Author(s):  
Arshad Farooqi ◽  
Keyword(s):  
Shelf Life ◽  
Open Field ◽  
Field Condition ◽  
Block Design ◽  
Cost Benefit ◽  
Fruit Weight ◽  
Cherry Tomato ◽  
Nitrogen And Phosphorus ◽  
Solanum Lycopersicum L ◽  
Open Field Condition

An investigation was carried out at the Department of Horticulture, University of Agricultural Sciences, Bangalore during summer-2017 to study the effect ofvaried levels of nitrogen and phosphorus fertigation on cherry tomato under open field and polyhouse conditions. There were 12 treatment combinations comprising of two growing conditions (open field and polyhouse), three levels of nitrogen (120, 150 and 180 kg N ha-1) and two levels of phosphorus (100 and 120 kg P2O5 ha-1) supplied trough fertigation with recommended potassium (150 kg h-1) as constant which were laid out in Factorial Randomized Complete Block Design with three replications. Result revealed that plant height (384.39 cm), fresh weight per plant (3.00 kg),nitrogen balance index (48.56), total leaf area per plant (6293 cm2), mean fruit weight (15.84 g), TSS content (6.30 ºB) and shelf life (15.66 days) were significantly higher under polyhouse condition with fertigation level of 180:120 kg N:P2O5 ha-1. However, significantly higher yield per hectare (78.16 t), Shelf life (15.66 days) and higher cost benefit ratio (4.81) were observed under open field condition with fertigation level of 150:120 kg N: P2O5 ha-1. Further, it can be concluded from the study that application of 150:120 kg N: P2O5 ha-1 through fertigation under open field condition is profitable during summer season in the Eastern Dry Zone of Karnataka.

scholarly journals Assessment of genetic variability and character association in okra genotypes for yield and contributing characters

2017 ◽  
Vol 9 (3) ◽  
pp. 1825-1830
Author(s):  
Meenakshi Kumari ◽  
S. S. Solankey ◽  
Shirin Akhtar ◽  
Pallavi Neha
Keyword(s):  
Agronomic Traits ◽  
Block Design ◽  
Fruit Weight ◽  
Hybrid Breeding ◽  
Genetic Advance ◽  
Randomized Block Design ◽  
Wide Range ◽  
High Heritability ◽  
Level Of Significance ◽  
Fruit Diameter

A study of genetic diversity in 20 okra genotypes for 22 morphological and agronomic traits (13 quantita- tive and 9 qualitative) was laid out in randomized block design with three replications during 2015-16. The phenotyp- ic and genotypic variances, phenotypic (PCV) and genotypic coefficients of variation (GCV), heritability, genetic ad- vance of the characters were studied. The genotypes demonstrated wide range of variability for all characters. In this study PCV was higher than its corresponding GCV thus revealing the role of environmental factors. High heritability (h2b) was recorded for all characters except for days to first flowering (27.76%) and days to 50% flowering (34.67%) which have moderate values. Genetic advance in per cent of mean was high for all the characters ex- cept moderate for first flowering node (12.88%), fruit length (17.59%), fruit diameter (13.99%) as well as low for days to first flowering (1.69%) and days to 50% flowering (2.28%). The higher value of genetic advance indicates that selection of genotypes on the basis of these characters is desirable. Fruit yield showed positive and highly significant (at 1% level of significance) genotypic association with fruit diameter, number of fruits per plant, average fruit weight and number of seeds per pod. The genotypes, viz. Kashi Kranti, Kashi Satdhari, VROB-159, Punjab-8 and Kashi Mohini were found promising for most of the yield contributing traits. These genotypes could be used further in hybrid breeding programme.

scholarly journals Efficacy of fungicides in management of Downy mildew disease of Cucumber (Cucumis sativus L.) under open field conditions, in Dhading district of Nepal

2020 ◽  
Vol 3 (1) ◽  
pp. 240-252
Author(s):  
Shailesh Pandit ◽  
Hira Kaji Manandhar ◽  
Krishna Hari Dhakal ◽  
Sramika Rijal ◽  
Sandesh Bhandari ◽  
...  
Keyword(s):  
Downy Mildew ◽  
Cucumis Sativus ◽  
Open Field ◽  
Disease Incidence ◽  
Block Design ◽  
Trichoderma Viride ◽  
Field Conditions ◽  
Verticillium Lecanii ◽  
Cucumis Sativus L ◽  
Downy Mildew Disease

Downy mildew (Pseudoperonospora cubensis) is one of the most important disease of cucumber under open field conditions. Hence, the experiment was conducted to study the efficacy of fungicides in management of downy mildew disease of cucumber (Cucumis sativus L.) under open field in Chauradi-7 Dhading during spring season, 2019. Bhaktapur local variety of cucumber was used for the study. The experiment was laid out in single factor randomized complete block design with four replications. Three different bio-fungicides; Trichoderma viride + Trichoderma harzianum, Bacillus subtilis, Verticillium lecanii and one chemical fungicide; Krilaxyl (metalaxyl 8% + mancozeb 64%) were used as treatments. Normal water spray served as control. It was observed that bio-fungicides had insignificant effect in controlling the downy mildew. Pathological observation such as disease incidence percentage, severity percentage and AUDPC in bio-fungicides treated plots were not significantly different from water-sprayed control plots. Similarly, biometric attributes such as number of fruit, length and diameter of fruit, weight of fruit were also non-significant. Krilaxyl resulted significant effect in controlling downy mildew, providing maximum disease reduction (37.48%-50.72%) with lowest disease incidence (1.25-61.25%) and lowest value of AUDPC (138.7). Krilaxyl treated plots had higher number of fruit (6), longer length of fruit (17.15-18.95), higher diameter of fruit (4.16- 4.45 cm) and higher weight of fruit (677 - 759 g). Hence, chemical fungicide Krilaxyl was found better for the management of downy mildew disease in open field cucumber cultivation. Further, researches on bio-fungicides, especially of native strains are required for best result.

scholarly journals Agronomic characterization and heterosis in watermelon genotypes

2018 ◽  
Vol 48 (2) ◽  
pp. 170-177
Author(s):  
Tiago Lima do Nascimento ◽  
Flávio de França Souza ◽  
Rita de Cássia Souza Dias ◽  
Edson Ferreira da Silva
Keyword(s):  
Agronomic Traits ◽  
Block Design ◽  
Fruit Weight ◽  
Market Demand ◽  
Randomized Block Design

ABSTRACT In order to increase the yield of vegetables of agronomic interest, heterosis has been studied in view of the superiority of hybrids, if compared to genotypes obtained by free pollination. This study aimed to estimate the relative heterosis in watermelon hybrids, regarding the most important agronomic traits, in order to develop future cultivars. The genotypes 'JNY', 'ORA', 'KOD', 'SOL', 'CHG', 'PEA' and all hybrids among them were used, totaling 36 treatments. A randomized block design, with three replications and five-plant plots, was used. The genotypes 'ORA', 'SOL', 'CHG' and 'PEA' were promising for the development of watermelon hybrids with higher weight, whereas 'JNY' and 'KOD' provided combinations with lower fruit weight and smaller seeds, indicating their potential for the development of cultivars of the 'ice box' type. The hybrids 'CHG x ORA' and 'ORA x CHG' were promising to meet the market demand for larger fruits, while 'KOD x JNY' and 'JNY x KOD' could be targeted to the market of smaller fruits.

scholarly journals Influence of Deficit Irrigation on Biometric Parameters of Capsicum Crop under Polyhouse Conditions

2020 ◽  
pp. 341-347
Author(s):  
Jaripiti Trivikrama Raju ◽  
G. Muralee Krishna ◽  
H. V. Hema Kumar ◽  
P. Sumathi
Keyword(s):  
Plant Height ◽  
Open Field ◽  
Drip Irrigation ◽  
Block Design ◽  
Water Productivity ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Biometric Parameters ◽  
Number Of Leaves ◽  
Number Of Branches

The influence of different deficit irrigations on capsicum crop biometric parameters and fruit yield were assessed in an experiment the variety ‘Indra’ was tested using completely randomized block design with three deficit irrigations (0.50, 0.75 and 1.0 ETC) and 5 replications in polyhouse and 1.0 ETC in open field conditions. The biometric parameters namely plant height, number of leaves, number of branches, number of days to flowering; number of days to harvesting, number of fruits per plant, individual fruit weight and fruit yield are measured. From the results, observed that, average of plant height (91.23 cm), number of leaves (91.3), number of branches (6.9), number of days to flowering (32.7), number of days to harvest (71), fruit number per plant (7), individual fruit weight (75.99 g) and yield (6466.66 t ha-1) parameters found higher in 1.0 ETC (T1), but in case of water productivity (12.4 kg ha-1 mm-1) in the treatment (T2) 0.75 ETC showed superiority. From the results, it is determined that by adopting the 0.75 ETC (T2) we can save the water up to 25%. Aims: The objective of this study is to evaluate the influence of deficit irrigation in biometric parameters of capsicum. Study Design:  Completely randomized block design. Place and Duration of Study: Experiment conducted during January to May 2018 at Agriculture farm, College of Agricultural Engineering, Madakasira located in Rayalaseema region. Methodology: Physical and chemical properties of field were found by using standard methods. The experiment was arranged using CRD design with three levels of irrigation and five replications. Fertigation was done with 250:150:150 kg/ha recommended doses of N:P:K to capsicum crop. Based on climatological approach (evapotranspiration basis) the quantity of water applied. All the recommended cultural practices selection of cultivars, nursery raising, land preparation, laying drip lines, fumigation, fertilizer application, transplanting, pruning, training and plant protection measures are removing affected plant parts, flowers, fruits and for thrips and aphids management are dicofol (2 ml/L) and imidacloprid (0.5 ml/l) standardized for polyhouse were followed time to time to ensure a healthy crop stand. Crop water requirement was determined by using AquaCrop model. The parameters viz., plant height, number of leaves per plant and number of branches per plant were recorded at 30, 60, 90, 120 days after transplanting and at harvest. The collected data of different parameters during the course of research were analysed as per the completely randomized design (CRD) by applying the technique of analysis of variance procedure. Results: Among all the treatments, Irrigation with 100% Crop Evapotranspiration (1.0 ETc) (T1) registered the highest plant height, number of leaves, number of branches, number of days required to harvesting, number of days required to flowering, fruit number, average fruit weight and fruit yield, followed by 0.75 ETc (T2), 0.5 ETc (T3) and open field conditions. This might be due to good soil moisture distribution in drip irrigation compared to the open field. From the observed parameters it is exhibited that drip irrigation 0.75 ETC recorded as the higher water productivity (12.4 kg ha-1 mm-1) followed by drip irrigation scheduled at 1.0 ETC (11.49 kg ha-1 mm-1), 0.5 ETC (11.07 kg ha-1 mm-1) and open field (1.38 kg ha-1 mm-1) recorded very less. Conclusion: By adopting T2 (0.75 ETC) irrigation treatment we can save the water up to 25%, by using saved water additional quantity of vegetables can be produced.

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