scholarly journals Mitigating Natural Heat Stress for Tomato (Solanum lycopersicum L) Production through Management Techniques

2021 ◽  
pp. 7-18
Author(s):  
Tika Ram Chapagain ◽  
Arjun Kumar Shrestha ◽  
Moha Dutta Sharma ◽  
Kalyani Mishra Tripathi ◽  
Aravind Srivastava
Keyword(s):  
Solanum Lycopersicum ◽  
Rice Husk ◽  
Production Management ◽  
Monsoon Season ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Late Winter ◽  
Tomato Production ◽  
Solanum Lycopersicum L ◽  
Management Techniques

An experiment was conducted to identify suitable production management techniques for tomato (Solanum lycopersicum L.) cultivation during late winter-pre monsoon season in plains of Nepal. For this, organic mulches (rice straw, dried grass, and rice husk) were compared with SN (shade net) and no-mulch (bare field) condition for tomato yield in 2018 and 2019. The pooled analysis of all observed morphological and yield traits were performed and they differed significantly. Rice husk significantly affected number of fruits per inflorescence though number of inflorescence per plant and flowers per inflorescence were similar among organic mulches. The highest fruit yield per plant (4.44 kg plant-1) was obtained with rice husk, the other mulches and SN were at par but the lowest yield (2.75 kg plant-1) was obtained with no-mulch. Similarly, rice husk mulch contributed to the highest number of fruits per inflorescence (5.22), highest fruit weight (46.58 g) and diameter (4.99 cm).Fruit yield positively and significantly associated with fruit per inflorescence(0.78***), fruit diameter (0.65***) and an average fruit weight (0.56***).Organic mulches significantly (p=0.05) contributed to higher yield (86.01 t ha-1) over SN (76.55 t ha-1).Higher values for total soluble solid, Vitamin C and fruit firmness were observed under rice husk mulching. The result of the present study found rice husk mulching as better option for tomato production as compared to SN and no-mulch condition.

scholarly journals Genetic variability and trait relationship in cherry tomato (Solanum lycopersicum L. var. cerasiforme (Dunnal) A. Gray)

2013 ◽  
Vol 41 (2) ◽  
pp. 163-167 ◽  
Author(s):  
MS Islam ◽  
HC Mohanta ◽  
MR Ismail ◽  
MY Rafii ◽  
MA Malek
Keyword(s):  
Genetic Variability ◽  
Solanum Lycopersicum ◽  
Fruit Weight ◽  
Fruit Yield ◽  
High Yield ◽  
Genetic Advance ◽  
Cherry Tomato ◽  
Solanum Lycopersicum L ◽  
Wide Range ◽  
Additive Gene

Nine traits of 11 cherry tomato (Solanum lycopersicum L.) var. cerasiforme (Dunal) A. Gray) inbred lines exhibited a wide range of genetic variability. High geno- and phenotypic coefficients of variation were obtained for individual fruit weight (68.16 and 74.23%, respectively) followed by number of fruits/plant (58.8 and 68.34%, respectively). High estimates of heritability, genetic advance and genotypic coefficient of variation for the traits of individual fruit weight, number of fruits and clusters/plant were controlled by additive gene action indicating the possibility of selection to improve these characters. Fruit yield/plant showed low heritability along with low genetic advance and did not show significant and positive correlation with the remaining characters. It indicates that improvement of high yield through selection is difficult, rather hybridization can be effective for improving the fruit yield/plant. Among the lines, CH154 produced the highest number of fruits/plant (291) and highest fruit yield (1.89 kg/plant and 63.4 t/ha) and can be selected for cultivation under Bangladesh condition. DOI: http://dx.doi.org/10.3329/bjb.v41i2.13443 Bangladesh J. Bot. 41(2): 163-167, 2012 (December)

THE EFECTS OF A CULTIVATION METHOD ON TOMATO YIELD SOLANUM LYCOPERSICUM L.

2019 ◽  
pp. 434-437
Author(s):  
Ivica Stančić ◽  
Jelica Živić ◽  
Saša Petrović ◽  
Desimir Knežević
Keyword(s):  
Solanum Lycopersicum ◽  
Total Yield ◽  
Market Value ◽  
Fruit Weight ◽  
Training System ◽  
Fruit Yield ◽  
Average Yield ◽  
Cultivation Method ◽  
Solanum Lycopersicum L ◽  
Tomato Yield

Investigated the effect of different forms of training system the yield of tomatoes in greenhouses. The study involved the genetic forms of tomatoes with one, two and three trees. The influence of training system on the number of fruits per plant, fruit weight, fruit yield per plant and fruit yield per m2. The highest average yield per plant was achieved by growing tomatoes in the three trees, planting a tree in the form given by the average large fruit, and the highest number of fruits per plant was obtained with the training system with three trees, and the lowest in the training system on a tree. When growing on a tree reaches maturity at the earliest, and larger fruits, and the growing maturation of the two trees is a little later, the fruits are slightly smaller, but higher total yield of tomatoes. Growth on three trees achieved the highest yield, but the fruit is considerably smaller, which reduces their market value.

scholarly journals Heterosis in Tomato (Solanum lycopersicum L.) for Yield and Yield Component Traits

2020 ◽  
pp. 141-152
Author(s):  
Desalegn Negasa Soresa ◽  
Gomathi Nayagam ◽  
Netsanet Bacha ◽  
Zerihun Jaleta
Keyword(s):  
Solanum Lycopersicum ◽  
Yield Components ◽  
Diallel Cross ◽  
Fruit Weight ◽  
Yield Component ◽  
Fruit Yield ◽  
F1 Hybrids ◽  
Solanum Lycopersicum L ◽  
Yield Component Traits ◽  
Marketable Fruit

Estimates of heterosis for F1 hybrids over mid and better parent were computed for traits that showed significant differences between genotypes on analysis of variance. Heterosis for yield components and yield was studied using 8x8 half diallel cross in tomato (Solanum lycopersicum L.). The heterosis for yield was generally accompanied by heterosis for yield components. Heterosis for marketable fruit yield per plant ranged from (-63.4%) (P3xP8) to (33.8%) (P6xP8) and (-62.5%) (P3xP8) to (52.6%) (P5xP7), for mid parent and better parent respectively. Significant heterosis over better and mid-parent was observed for all the traits.  Best parent and Mid-parent heterosis (MPH) was highest  and in desirable direction for number of marketable fruit per plant  (29.3%; 29.2%)  in crosses ( P3xP6 for both ) and pericarp thickness  (46.3%; 57.6%) in crosses (P2xP6 and P4xP8), number of fruit cluster per plant (32.8%; 35.9%) in cross (P3xP6 for both), individual fruit weight (36.1%; 41.2%) in cross (P2xP8, P3xP5) and fruit diameter (28.4%; 28.3%) in cross (P3xP5; P2xP6), fruit length (23.07%; 20.4%)  in cross (P2xP6 for both). Out of 28 F1 crosses, positive and desirable heterosis by 10 crosses over better parent and 17 crosses over mid-parent were observed for total fruit density in tomato. An important heterosis both in heterobeltiosis and mid-parent was recorded in marketable fruit yield in ton per hectare. From all the crosses, seven crosses revealed positive from which three crosses are the most important P2xP7 (31%),  P3xP5 (20%) and P3xP6 (54%) in better parent heterosis. Similarly for mid-parent heterosis, only ten crosses out of 28 reveled positive while the rest 18 crosses showed the undesirable direction for marketable fruit yield indicating majority of the hybrids exhibited unfavorable heterotic response and only a few hybrids could be considered for selection.

scholarly journals Effect of Plant density and Fertilizer Application Rates on Growth, Fruit Yield and Quality of Tomato (Solanum lycopersicum L.) in Greenhouse Condition

2021 ◽  
pp. 22-31
Author(s):  
Mai Hai Chau ◽  
Ngo Xuan Chinh
Keyword(s):  
Solanum Lycopersicum ◽  
Plant Density ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Fertilizer Rate ◽  
Tomato Cultivar ◽  
Solanum Lycopersicum L ◽  
Yield And Quality ◽  
Fruit Setting ◽  
Marketable Fruit

Plant density and fertilization are key practices for improving the fruit quality and yield of vegetables grown in greenhouses. The experiment was performed to investigate the effects of density and fertilization on the fruit yield and quality, economic efficiency of Solanum lycopersicum L. at Duc Trong district of Lam Dong province. The density (50,000; 33,000; 25.000 plants ha-1) and the fertilizer rates (240N – 100P2O5 – 275K2O; 300N – 125P2O5 – 344K2O; 360N – 150P2O5 – 413K2O kg and 420N – 175P2O5 – 482K2O kg ha-1) were studied in a completely randomised split plot design with three blocks. The fertilizer rate (420N – 175P2O5 – 482K2O kg ha-1) was produced the highest height (562.39 cm), fruit setting rate (69.87%), number of fruit per plant (95.65 fruits), average fruit weight (106.37 g), fruit yield (441.11 tons ha-1) and marketable fruit yield (204.31 tons ha-1). The density (25,000 plants ha-1) gave the highest fruit setting rate (75.35%), number of fruit per plant (94.84 fruits), average fruit weight (113.24 g), individual fruit yield (10.02 kg per plant) and fruit yield (501.17 tons ha-1). The combination of density (25,000 plants ha-1) and fertilizer rate (420N – 175P2O5 – 482K2O kg ha-1) have the highest fruit yield (613.5 tons ha-1), marketable fruit yield (223.91 tons ha-1) and rate of return (2.44). In addition, this combination was the best density and fertilizer level management strategy for greenhouse-grown Lahay 334 tomato cultivar in Lam Dong province, Vietnam.

scholarly journals Correlation coefficient and path analysis studies in tomato (Solanum lycopersicum L.)

2021 ◽  
Vol 23 (2) ◽  
pp. 175-180
Author(s):  
RAJEEV KUMAR ◽  
Keyword(s):  
Path Analysis ◽  
Solanum Lycopersicum ◽  
Correlation Coefficient ◽  
Negative Correlation ◽  
Significant Negative Correlation ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Solanum Lycopersicum L ◽  
Positive Correlations ◽  
Positive Direct

The investigation was carried out at the Horticulture Research Farm of the B.B.A. University, Lucknow (UP), India during rabi season of 2017-18 and 2018-19 to. Study the correlation coefficient and path analysis in tomato (Solanum lycopersicum L.). The twenty genotypes were evaluated in randomized block design with three replication. Genotypic correlation coefficient was indicated that fruit yield (q ha-1) exhibited highly significant positive correlations with average fruit weight (1.042), fruits per plant (0.996), branches per plant (0.831) and fruits per cluster (0.749). It also registered significant negative correlation with days to 50 % flowering (-0.835). However, phenotypic correlation coefficient indicated that fruit yield (q ha-1) had highly significant positive correlations with fruits per plant (0.977), clusters per plant (0.893), average fruit weight (0.729) whereas, significant negative correlation with days to 50 % flowering (-0.178). Path analysis revealed that the traits like fruit yield kg/plot (1.430) and fruit yield per plant (0.034) exhibited positive direct effects on fruit yield and these traits also recorded positive correlation with yield. This suggested that direct selection based on these traits will be rewarding for crop yield improvement.

scholarly journals The Role of Staking and Pruning Methods on Yield and Profitability of Tomato (Solanum lycopersicum L.) Production in the Guinea Savanna Zone of Ghana

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
S. Lamptey ◽  
E. Koomson
Keyword(s):  
Solanum Lycopersicum ◽  
Block Design ◽  
Tomato Fruit ◽  
Northern Region ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Solanum Lycopersicum L ◽  
Tomato Yield ◽  
Yield Quality ◽  
Pruning Methods

Tomato is one of the most widely consumed and produced vegetables in Ghana. The low yield of tomatoes in Ghana has resulted in huge importation of the produce from neighboring countries. Good agronomic practices are among the key strategies involved in increasing the yield of horticultural produce. This study seeks to evaluate the response of staking and pruning on tomato fruit yield, quality, and cost of production. To achieve this, a field experiment was conducted to investigate the effect of staking and pruning methods on fruit yield and profitability of tomato (Solanum lycopersicum L.) produced in the northern region of Ghana. Treatments were applied in a randomized complete block design with three replications. Treatments were no pruning + no staking (control), single pole staking (SPS), wire trellis (WT), one-stem pruning (1SP), one-stem pruning + single pole staking (1SP + SPS), one-stem pruning + wire trellis (1SP + WT), two-stem pruning (2SP), two-stem pruning + single pole staking (2SP + SPS), and two-stem pruning + wire trellis (2SP + WT). Results showed that 2SP + WT increased fruit diameter, fruit length, and marketable fruit weight by 52%, 32%, and 69%, respectively, compared to the control. The maximum number and weight of marketable fruits obtained from 2SP + WT increased total fruit yield by 76% compared to the control. In all, the performance of the treatments in terms of yield was in the following order: 2SP + WT > 1SP + WT > SPS > WT > 2SP + SPS > 1SP > 2SP > control. Though 2SP + WT increased production cost by 42%, it greatly increased yield by 69% which resulted in 83% net profit compared to the control. Thus, 2SP + WT could be tested on-farm for possible adoption to increase tomato yield, quality, and profit.

scholarly journals CARACTERÍSTICAS PRODUTIVAS E MORFOLÓGICAS DE FRUTOS DE TOMATE EM RESPOSTA A SISTEMAS DE RALEIO

Nativa ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 478
Author(s):  
Tiago Aparecido Parca ◽  
Everton Geraldo de Morais ◽  
Henrique José Guimarães Moreira Maluf ◽  
Luciano Donizete Gonçalves ◽  
Diorge Maykon de Oliveira ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Relative Frequency ◽  
Fruit Weight ◽  
Morphological Features ◽  
Transverse Diameter ◽  
Total Production ◽  
Tomato Fruits ◽  
Tomato Production ◽  
Tomato Plants ◽  
Solanum Lycopersicum L

O objetivo do presente trabalho foi avaliar o efeito de técnicas de raleio na produção e em características morfológicas de frutos de tomate. O tomateiro foi submetido a seis diferentes técnicas de raleio de frutos, com condução de diferentes números de racemos por planta. Ao final do experimento, após a colheita, foi avaliado o diâmetro médio longitudinal (DLM) e transversal (DTM) dos frutos, número de frutos por planta (NF), peso médio de frutos (PMF), produção total por planta (Prod T), produção de frutos grande (Prod G), médio (Prod M) e pequeno (Prod P), e a frequência relativa de cada classe de diâmetro. A técnica de raleio que consistiu na condução de plantas com 7 racemos, com 6 frutos por racemoaté o 4° racemo e acima deste, 4 frutos por racemo(R3) aumentou a Prod G, a frequência relativa da classe grande, a Prod T, DTM, DLM e PMF. Técnicas de raleio que resultaram em maior NF reduziram a qualidade morfológica dos frutos, bem como a condução de plantas com menos de sete racemos reduziu a produção de tomates. A adoção da técnica R3 no tomateiro reuni alta produção de frutos por planta com aumento da qualidade morfológica do fruto.Palavras-chave: Solanum lycopersicum L.; desbaste de frutos; qualidade de tomates; classes de diâmetro de frutos; relação fonte:dreno. PRODUCTIVE AND MORPHOLOGICAL FEATURES OF TOMATO FRUITS IN RESPONSE TO THINNING SYSTEMS ABSTRACT: The aim of this work was to evaluate the effect of thinning techniques on the production and morphological features of tomato fruits. Tomato plants were submitted to six different thinning practices, with different numbers of racemes per plant. At the end of the experiment, the mean longitudinal diameter (MLD) and transverse diameter (MTD) of fruits, number of fruits per plant (NF), average fruit weight (AFW), total production per plant (T Prod), production of fruits large (Prod L), middle  (Prod M) and small (Prod S), and the relative frequency of each diameter class. The thinning technique, which consisted in the conduction of plants with 7 racemes, with 6 fruits per raceme up to the 4th raceme and above this, 4 fruits per raceme (R3) increased the Prod L, the relative frequency of the large class, T Prod, MLD, MTD, and AFW. Thinning techniques that provide greater NF reduced the morphological quality of fruits, as well as the conduction of plants with less than seven racemes decreased tomato production. Adoption of the R3 technique in the tomato plants bring together high fruit production with an increase in the fruit morphological quality.Keywords: Solanum lycopersicum L.; fruit pruning; tomato quality; fruit diameter classes; source:sink ratio.

scholarly journals The Effects of Nitrogen and Phosphorus Fertilizer Rates on Yield and Quality of Tomato (Solanum lycopersicum L.) in Hawzen, Ethiopia

2020 ◽  
Author(s):  
Hilay Gebremedhin ◽  
Mehari Gebremicheal ◽  
Gebregwergis Fitsum
Keyword(s):  
Solanum Lycopersicum ◽  
Soil Analysis ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Index Number ◽  
Area Index ◽  
Solanum Lycopersicum L ◽  
Yield And Quality ◽  
Main Effects

Abstract Background More than 50% of the soil in Tigray is deficient in macro essential nutrients. Hence, poor soil chemical fertility is a major challenges for low production of crops like tomato in Hawzen. The aim of this work was to study the effects of N and P rates on the yield and quality of tomato (Solanum lycopersicum L.) in Hawzen, Tigray, Ethiopia. Methods Four different rates of N (0, 69, 138 and 207 kg Nha− 1) and P (0, 46, 69 & 92 kg Pha− 1) were laid out in a randomized complete block design with three replications. Soil analysis were done before executing of the experiment. Data were collected on yield, and fruit quality of tomato. Results The results revealed that plant height, leaf area index, number of primary branches per plant, number of clusters per plant, number of flower clusters, number of fruit per clusters and fruit set were significantly influenced by the main effects of N and P rates. The interaction of N and P rates only had significant effects on marketable, total fruit yield, mean fruit weight, and fruit length. Compared to control, application of 138 kg Nha− 1 and 69 kg Pha− 1 increased mean fruit weight, marketable fruit weight and total fruit yield by 35.9%, 70.5% and 68.4%, respectively. Likewise, the main effects of N and P rates were remarkable on total soluble solids, total sugar, titratable acidity, ascorbic acid, lycopene content, and protein. A significant influence on the P content of tomato was detected due to varied rates of P. fruit N concentration was significantly influenced by rates of N only. Conclusion Application of N and P at rates of 138 and 69 kgha− 1, respectively, showed the highest values in most yield and quality measurements and particularly increased yield by 70.5% as compared to the nil fertilizer application. Therefore, 138 kg Nha− 1 and 69 kg Pha− 1 can be used by producers for better yield and quality of tomato in the area.

Distribution and incidence of tomato bacterial wilt caused by Ralstonia solanacearum in the central region of Togo

2021 ◽  
Author(s):  
Bitang Bamazi ◽  
Agnassim Banito ◽  
K. D. Ayisah ◽  
Rachidatou Sikirou ◽  
Mathews Paret ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Laboratory Investigation ◽  
Central Region ◽  
Bacterial Wilt ◽  
Ralstonia Solanacearum ◽  
Yield Losses ◽  
Tomato Production ◽  
Solanum Lycopersicum L ◽  
Survey Results ◽  
Tomato Bacterial Wilt

Tomato (Solanum lycopersicum L.) is one of the most important vegetables in Togo. Unfortunately, tomatoes are susceptible to many diseases, among which bacterial wilt caused by Ralstonia solanacearum causes major yield losses. In this study, incidence of bacterial wilt and its distribution was evaluated in the central region of Togo, the major tomato producing area in the country. Overall, 16 localities were surveyed in four prefectures. In each locality, three fields were visited, and the incidence of the disease was recorded, and diseased samples were collected for laboratory investigation. The results showed that bacterial wilt occurred in all the fields visited, indicating a field incidence of 100%, whereas the plant incidence ranged from 10.00±00% to 43.33±3.33%, with an average of 20.94±1.77%. The antibody based Immunostrip test was positive for R. solanacearum in 100% of the visited fields. From 144 samples collected from fields, 45 R. solanacearum isolates were isolated on Modified SMSA media. This survey results show that tomato bacterial wilt is a real threat to tomato production in the central region of Togo.

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