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 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)

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 Growth and yield performance of hybrid tomato (Solanum lycopersicum L.) lines at Parwanipur, Bara, Nepal

2020 ◽  
Vol 3 (1) ◽  
pp. 180-189
Author(s):  
Suraj Gurung ◽  
Prabin Adhikari ◽  
Kushal Giri ◽  
Tek Prasad Gotame ◽  
Surendra Lal Shrestha
Keyword(s):  
Block Design ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Growth And Yield ◽  
Research Station ◽  
Higher Plant ◽  
Yield Performance ◽  
Solanum Lycopersicum L ◽  
Hybrid Variety ◽  
Marketable Fruit

An experiment was conducted to evaluate the performance of hybrid tomato lines on growth and yield performance at Regional Agriculture research Station (RARS), Parwanipur, Nepal during end of September, 2018 to April, 2019. The experiment was laid out in randomized complete block design (RCBD) with seven hybrid tomato lines as treatments and three replications. The tested lines included Srijana and Dalila as check varieties and other lines, developed by crossing HRA and HRD lines which showed better performance under late blight conditions. HRA 20× HRD 1 showed significantly higher plant height (110.67 cm) which was statistically at par with genotype HRA 14× HRD 7. The highest number of fruits per plant (69) was recorded from Srijana whereas the lowest number of fruits per plant (37) was recorded from cv. HRA20 × HRD1. The fruit yield of the lines ranged from 50.54 t/ha to 32.2 t/ha with Srijana having the highest yield and HRA 20× HRD 1 as the lowest. Similar results were shown regarding the marketable fruit yield. However, the highest individual fruit weight (34.67g) was recorded in HRA 14× HRD 7 and the least fruit weight was recorded in Srijana (24.22 g). Results showed that the maximum TSS (5.53 0Brix) was recorded from Dalila which was similar as Srijana. Hence, the overall performance of Srijana was recorded superior regarding both quantitative and qualitative suggesting Srijana as the recommended variety in the given domain. Here authors concluded that Srijana is still a comparatively better hybrid variety in Nepal. 

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 Selection of parental lines among round fruited brinjal for hybridization aiming at export promotion

2017 ◽  
Vol 9 (1) ◽  
pp. 451-455
Author(s):  
Varun Durwas Shende ◽  
Tania Seth ◽  
Subhra Mukherjee ◽  
Arup Chattopadhyay
Keyword(s):  
Principal Component Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Yield Component ◽  
Fruit Yield ◽  
Component Traits ◽  
Parental Lines ◽  
Yield Component Traits ◽  
Marketable Fruit ◽  
Selection Of

Selection of parental lines for considering export trade in hybridization programme is a new approach in brinjal breeding. Eight quantitative characters were taken to estimate genetic variation and relationships among twenty seven genotypes of round fruited brinjal, and to identify potential donors for the development of recombinants suitable for export. Analysis of variation revealed considerable level of variability among the genotypes. High broad sense heritability (˃80 %) and genetic advance as per cent of mean (˃20 %) were observed for the maximum number of traits under study. Among the yield components, only number of marketable fruits per plant showed positive and significant correlation (r = 0.771 and 0.725 at genotypic and phenotypic level, respectively) with marketable fruit yield per plant. However, number of marketable fruits per plant (1.24) followed by average fruit weight (0.834) ex-hibited maximum positive direct effects on marketable fruit yield per plant suggesting to give emphasis on these traits while imposing selection for amenability in fruit yield of round fruited brinjal. Principal component analysis showed the amount of variation by principal components 1 to 4 viz., 26.75, 49.98, 69.81 and 84.28 %, respectively. Divergence analysis based on various yield component traits grouped 27 brinjal genotypes into nine main clusters. Dendrogram based on hierarchal clustering grouped genotypes based on their yield component traits rather than their geographic origin. Based on averages and principal component analysis, six genotypes (BCB-30, Deshi Makra, Gujrat Brinjal Round, 09/BRBWRes-3, BCB-10, 10/BRRVar-2) appeared to be promising donors for use in export oriented breeding programme.

scholarly journals Effect of intercropping on growth and yield of tomato (Solanum lycopersicum L.)

2021 ◽  
pp. 36-41
Author(s):  
T SONIYA
Keyword(s):  
Solanum Lycopersicum ◽  
Yield Components ◽  
Tamil Nadu ◽  
Block Design ◽  
Fruit Weight ◽  
Growth And Yield ◽  
Area Index ◽  
Solanum Lycopersicum L ◽  
Sole Crop ◽  
Randomized Block Design

The investigation was carried out to “Study the effect of intercropping on growth and yield of tomato (Solanum lycopersicum L.)” at a farmer’s field at Sorakalnatham, Natrampalli taluk, Tirupattur district, (Tamil Nadu) during January - May 2019. The experiment was laid out in randomized block design with ten treatments replicated thrice. The treatments comprised of three intercrops viz., radish, small onion and vegetable cowpea, and three levels of recommended dose of fertilizers (RDF) viz., 100, 125 and 150 % along with sole crop of tomato under 100 % RDF. The results indicated that the maximum values for growthattributes viz., plant height at 30, 60 and 90 DAT (48.5, 63.5 and 92.1 cm, respectively), primary branches/plant (11.5), leaf area index (3.58) and yield components like fruits plant-1 (35.5), single fruit weight (82.9 g) and weight of fruits plant-1 (2.9 kg) were recorded in the plots which received 25 t FYM ha-1 + 150 % RDF in tomato + small onion intercropping system. This was followed by thetomato + vegetable cowpea intercropping system which received 25 t FYM ha-1 + 150 % RDF.

scholarly journals Effect of Plant Spacing on Yield and Yield Components of Tomato (Solanum lycopersicum L.) in Shewarobit, Central Ethiopia

Scientifica ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-6 ◽  
Author(s):  
Getachew Amare ◽  
Hailay Gebremedhin
Keyword(s):  
Yield Components ◽  
Block Design ◽  
Fruit Yield ◽  
Plant Spacing ◽  
Tomato Seedling ◽  
Tomato Production ◽  
Fruit Number ◽  
Solanum Lycopersicum L ◽  
Yield And Yield Components ◽  
Marketable Fruit

Inappropriate spacing is one of the major problems in tomato production at the study area. A field experiment was conducted to determine inter- and intrarow plant spacing for yield and yield components of tomato at Shewarobit, central rift valley of Ethiopia, under irrigation condition. The treatment comprises of three intrarow spacing (20, 30, and 40 cm) and four interrow spacing (60, 80, 100, and 120 cm) replicated three times and arranged in randomized complete block design using tomato variety Weyno. Data collected on fruit yield and yield components were analysed using SAS. The main effect of interrow spacing significantly affected marketable fruit, unmarketable fruit, marketable fruit number, unmarketable fruit number, and fruit diameter. The 20 cm interrow spacing showed a marked increase in marketable fruit yield by 35.96% as compared to 30 cm spacing used by farmers. Planting tomato in closer interrow spacing (60 cm) resulted in 50% yield increment than the widest (120 cm) space between rows. Interaction effects of both inter- and intrarow spacing significantly (p < 0.05) affected plant height and fruit length. An intrarow and interrow spacing of 20 ∗ 100 cm and 20 ∗ 120 cm resulted in tallest plants and widest fruits, respectively. Therefore, farmers can use 20 cm intrarow spacing and 60 cm interrow spacing for planting of tomato seedling of Weyno variety.

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 Plant Spacing Influences Watermelon Yield and Yield Components

HortScience ◽  
1993 ◽  
Vol 28 (9) ◽  
pp. 885-887 ◽  
Author(s):  
D.S. NeSmith
Keyword(s):  
Weight Distribution ◽  
Citrullus Lanatus ◽  
Fruit Weight ◽  
Yield Component ◽  
Fruit Yield ◽  
Plant Spacing ◽  
Land Area ◽  
Plant Populations ◽  
Frequency Scale ◽  
Marketable Fruit

Watermelon [Citrullus lanatus (Thunb.) Matsum & Nakai] cultivars StarBrite and Crimson Sweet were grown during 1991 and 1992 in rows 1.5 m apart at plant spacings of 0.9, 1.5, or 2.2 m. Total fruit yield, marketable fruit yield, fruit-weight distribution, and estimated gross returns were determined for each spacing treatment. Total and marketable fruit yields were greater overall for `StarBrite' than for `Crimson Sweet'. Except for 1991 `Crimson Sweet' yields, marketable fruit yields per unit land area increased 29% to 34% as plant spacing decreased from 2.2 to 0.9 m. The yield component contributing the most to increased yields with high-density plantings was increased fruit count per unit land area. Average fruit weight responded only slightly to decreased plant spacing. Fruit-weight distribution on a relative frequency scale was stable regardless of plant spacing or production year. The potential for increasing gross returns per unit land area exists by increasing watermelon plant populations beyond the current Georgia recommendation of 2500 to 3000 plants/ha.

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