scholarly journals Using Mini-Rockwool Blocks as Growing Media for Limited-cluster Tomato Production

2001 ◽  
Vol 11 (2) ◽  
pp. 175-179 ◽  
Author(s):  
Logan S. Logendra ◽  
Thomas J. Gianfagna ◽  
Harry W. Janes
Keyword(s):  
Fruit Size ◽  
Fruit Yield ◽  
Standard Size ◽  
Tomato Production ◽  
Fruit Number ◽  
Effective Combination ◽  
Growing Medium ◽  
Blossom End Rot ◽  
Single Cluster ◽  
Double Cluster

Rockwool is an excellent growing medium for the hydroponic production of tomato; however, the standard size rockwool blocks [4 × 4 × 2.5 inches (10 × 10 × 6.3 cm) or 3 × 3 × 2.5 inches (7.5 × 7.5 × 6.3 cm)] are expensive. The following experiments were conducted with less expensive minirock wool blocks (MRBs), on rayon polyester material (RPM) as a bench top liner, to reduce the production cost of tomatoes (Lycopersicon esculentum) grown in a limited-cluster, ebb and flood hydroponic cultivation system. Fruit yield for single-cluster plants growing in MRBs [2 × 2 × 1.6 inches (5 × 5 × 4 cm) and 1.6 × 1.6 × 1.6 inches (4 × 4 × 4 cm)] was not significantly different from plants grown in larger sized blocks (3 × 3 × 2.5 inches). When the bench top was lined with RPM, roots penetrated the RPM, and an extensive root mat developed between the RPM and the bench top. The fruit yield from plants on RPM was significantly increased compared to plants without RPM due to increases in fruit size and fruit number. RPM also significantly reduced the incidence of blossom-end rot. In a second experiment, single- and double-cluster plants were grown on RPM. Fruit yield for double-cluster plants was 40% greater than for single-cluster plants due to an increase in fruit number, although the fruit were smaller in size. As in the first experiment, fruit yield for all plants grown in MRBs was not significantly different from plants grown in the larger sized blocks. MRBs and a RPM bench liner are an effective combination in the production of limited-cluster hydroponic tomatoes.

scholarly journals Greenhouse Tomato Limited Cluster Production Systems: Crop Management Practices Affect Yield

HortScience ◽  
2001 ◽  
Vol 36 (5) ◽  
pp. 893-896 ◽  
Author(s):  
Logan S. Logendra ◽  
Thomas J. Gianfagna ◽  
David R. Specca ◽  
Harry W. Janes
Keyword(s):  
Harvest Index ◽  
Crop Production ◽  
Management Practices ◽  
Plant Density ◽  
Production Systems ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Fruit Number ◽  
Greenhouse Tomato ◽  
Single Cluster

Limited-cluster production systems may be a useful strategy to increase crop production and profitability for the greenhouse tomato (Lycopersicon esculentum Mill). In this study, using an ebb-and-flood hydroponics system, we modified plant architecture and spacing and determined the effects on fruit yield and harvest index at two light levels. Single-cluster plants pruned to allow two leaves above the cluster had 25% higher fruit yields than did plants pruned directly above the cluster; this was due to an increase in fruit weight, not fruit number. Both fruit yield and harvest index were greater for all single-cluster plants at the higher light level because of increases in both fruit weight and fruit number. Fruit yield for two-cluster plants was 30% to 40% higher than for singlecluster plants, and there was little difference in the dates or length of the harvest period. Fruit yield for three-cluster plants was not significantly different from that of two-cluster plants; moreover, the harvest period was delayed by 5 days. Plant density (5.5, 7.4, 9.2 plants/m2) affected fruit yield/plant, but not fruit yield/unit area. Given the higher costs for materials and labor associated with higher plant densities, a two-cluster crop at 5.5 plants/m2 with two leaves above the cluster was the best of the production system strategies tested.

scholarly journals Performances Of Heat Tolerant Tomato (Solanum Lycopersicum) Hybrids During Rainy Season

1970 ◽  
Vol 36 (2) ◽  
pp. 189-196 ◽  
Author(s):  
S Ahmad ◽  
MS Islam ◽  
MA Hoque
Keyword(s):  
Rainy Season ◽  
Fruit Size ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Research Centre ◽  
Tomato Production ◽  
Tomato Yield ◽  
Treated Plant ◽  
Heat Tolerant ◽  
Hybrid Lines

An investigation was undertaken with a view to observing the performance of newly developed summer tomato hybrids during May 2008 to September 2008 at experimental field of Horticulture Research Centre, BARI, Gazipur. Number of fruits per plant, individual fruit weight, fruit size, etc. was significantly higher when the plants were treated with hormone. Fruit yield per plant was quite high in the hormone treated plant (1.57 kg) compared to untreated plants (0.90 kg). In general, all the hybrids performed better when treated with hormone in respect of yield compared to their corresponding untreated plants. The hybrid WP7 × C- 51 had the highest individual fruit weight (56.0 g) Among the hybrids, HT019 × WP10 had the highest fruit yield per plant (1.87 kg) closely followed by C-11 × WP10 (1.81 kg) when the plants were treated with hormone. The untreated plants of the hybrid lines C-41 × WP8, HT019 × WP10 and C-41 × WP10 produced more than 1.0 kg of fruits per plant. This indicates that there is bright scope of tomato production during summer through with and without hormone application, though application of hormone had positive effect on tomato yield. Keywords: Heat tolerant tomato hybrids; rainy season. DOI: http://dx.doi.org/10.3329/bjar.v36i2.9243 BJAR 2011; 36(2): 189-196

scholarly journals Partial Defoliation Can Decrease Average Leaf Size but Has Little Effect on Orange Tree Growth, Fruit Yield and Juice Quality

HortScience ◽  
2005 ◽  
Vol 40 (7) ◽  
pp. 2011-2015 ◽  
Author(s):  
Rongcai Yuan ◽  
Fernando Alferez ◽  
Igor Kostenyuk ◽  
Shila Singh ◽  
James P. Syvertsen ◽  
...  
Keyword(s):  
Leaf Area ◽  
Fruit Size ◽  
Leaf Size ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Juice Quality ◽  
Fruit Number ◽  
Acid Ratio ◽  
Orange Trees

The effects of 2 consecutive years of annual defoliation during the harvest season on fruit size, yield, juice quality, leaf size and number were examined in trees of the midseason cultivar `Hamlin' and the late-season cultivar `Valencia' orange [Citrus sinensis (L.) Osb.]. In `Hamlin', removal of up to 50% of the leaves in late November had no effect on fruit yield, fruit number, fruit size, soluble solids yield, juice °Brix, and °Brix to acid ratio of juice the following year. In `Valencia', removal of 50% of the leaves in late March decreased fruit yield and soluble solids yield but did not affect Brix or the Brix to acid ratio of the juice. Leaf size of new flush was reduced by removal of 50% of the leaves in both cultivars but there was little effect on total canopy size. There were no measured effects of removing 25% of leaves from tree canopies. Thus, canopy growth, fruit yield, fruit quality, and leaf size were not negatively impacted when annual defoliations did not exceed 25% of the total canopy leaf area in `Valencia' and `Hamlin' orange trees for two consecutive years. Overall, fruit weight increased linearly with increasing ratio of leaf area to fruit number, suggesting that fruit enlargement can be limited by leaf area.

scholarly journals Phenotypic variability for horticultural and fruit quality attributes in plastic house grown tomato

2020 ◽  
Vol 15 (2) ◽  
pp. 136-146
Author(s):  
O T Adeniji ◽  
A V Tenebe ◽  
A Ishaka ◽  
E Jandong ◽  
J T Adamu ◽  
...  
Keyword(s):  
Phenotypic Variability ◽  
Fruit Size ◽  
Fruit Yield ◽  
Ecological Zone ◽  
Yield Data ◽  
Tomato Production ◽  
Solanum Lycopersicum L ◽  
Protected Cultivation ◽  
Tropical Conditions ◽  
Yield Quality

In Sudan's agro-ecological zone, tomato production is constrained by a dearth of high fruit yielding and quality (Solanum lycopersicum [L.]) varieties for cultivation in polyhouse. Exotic and indeterminate tomato genotypes with high fruit yield and quality were evaluated to gain information on variation for fruit yield, quality, shape, and interdependence between traits in Sudan agroecology. The seed was sown during 2018 and 2019. Fruit yield, quality, and phenomic traits were measured. Development, °Brix, and fruit yield responded to microclimate factors in the polyhouse over years. ‘Bruno’ was the best for fruit size and ‘Tofi’ for fruit number. Vine length at flowering, fruits/cluster, days to 50% flowering, and days to first flowering and fruit brix are heritable. The genotype responses suggest the need for stable and to develop high-yielding and quality tomato varieties for protected cultivation in the Sudan agro-ecological zone. Testing stable genotypes in locations could enhance breeding efficiency with respect to genotypic stability. The yield data gained under tropical conditions identified traits of superior genotypes for multiple environment studies and to encourage tomato growers to consider protected cultivation in the tropics.

scholarly journals Evaluation of Heat Tolerant Chilli (Capsicum annuum L.) Genotypes in Western Terai of Nepal

2006 ◽  
Vol 27 ◽  
pp. 59-64 ◽  
Author(s):  
KC Dahal ◽  
MD Sharma ◽  
DD Dhakal ◽  
SM Shakya
Keyword(s):  
Ascorbic Acid ◽  
Acid Content ◽  
Management Practices ◽  
Fruit Set ◽  
Block Design ◽  
Fruit Size ◽  
Ascorbic Acid Content ◽  
Fruit Yield ◽  
Yield Potential ◽  
Fruit Number

A field evaluation of thirteen chilli genotypes was conducted in ‘Randomized Complete Block Design’ with three replications to identify the most appropriate chilli genotypes at western terai of Nepal in spring summer of 2005. Ten heat resistant genotypes introduced from AVRDC, Taiwan to Nepal and three commercial cultivars of Nepal were planted at 50x30 cm spacing in paired row plot. All the management practices were carried out uniformly for all the treatments. Genotype CCA-119A was the earliest for 50% green fruit maturity. Fruit set percent varied significantly with the average of 18.81%. Fruit length, fruit diameter and ascorbic acid content also varied greatly. Ascorbic acid content (mg/100 g) ranged from 32.86 in CCA-984A to 173.7 in NS-1701. Wide variations were observed in yield potential of the genotypes ranging total fruit number per plant from 5.61 to 71 and in total fruit yield 7.97 to 95.33 q/ha. The genotype Mr. Lee No. 3 selex produced maximum marketable fresh fruit yield (90.69 q/ha) which was 234.5% higher than that of Jwala (check). Genotypes Susan’s Joy, CCA-119A and CCA-3288 had also 122.98, 49.06 and 25.48% higher marketable yield respectively than that of Jwala. Higher yield in genotypes Mr. Lee No. 3 selex and CCA-119A were found with better fruit set, better fruit size and more fruit number per plant while the genotype Susan’s Joy and CCA-3288 had higher yield mainly due to their predominantly larger fruit size. The genotypes with better fruit set and larger fruit size were more appropriate for the hot and dry condition of western terai of Nepal. Key words: Temperature, capsicum, fruit set, fruit number, pepper, yield J. Inst. Agric. Anim. Sci. 27:59-64 (2006)

scholarly journals Fruit set, fruit retention and yield of chilli genotypes under hot and dry condition of western terai of Nepal

2018 ◽  
pp. 229-236
Author(s):  
K. C. Dahal ◽  
M. D. Sharma ◽  
R. Sapkota
Keyword(s):  
Fruit Set ◽  
Block Design ◽  
Fruit Size ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Fresh Fruit ◽  
Yield Potential ◽  
Coefficient Of Determination ◽  
Drought Period ◽  
Fruit Number

 Thirteen selected chilli genotypes were evaluated in randomized completely block design with three replications to study the flowering, fruit set and yield potential during spring-summer of 2005 at Khajura, Banke (Western terai district of Nepal). High temperature, long drought period and hot wind blow during flowering and fruiting period severely affected the fruit set and fruit size. Only 18.81% flowers set fruits while 72.41% of set fruits reached to marketable size (harvesting). Wide variations observed in yield potential of the genotypes ranging total fruit number per plant from 6 to 71 and in total fruit yield 7.97 to 95.33 q/ha. The genotype Mr. Lee No. 3 Selex produced maximum marketable fresh fruit yield (90.69 q/ha) which was 234.5% higher than that of Jwala (standard check) with 50.57% fruit set and 74.93% fruit retention. One fruit per plant was 0.63 and 0.52 coefficient of fruit set (%) and fruit retention (%) respectively. Highly significant coefficient of determination (R2=0.86) of the product of fruit number per plant and 100 fruit weight (g) against fresh fruit yield (q/ha) showed that chilli genotypes yield can be predicted considering fruit number per plant and fruit weight in hot and dry summer condition.Journal of the Institute of Agriculture and Animal Science.Vol. 33-34, 2015, page: 229-236

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 Ethephon Concentrates and Advances Harvest for Limited Cluster Greenhouse Tomato Crops

HortScience ◽  
2004 ◽  
Vol 39 (7) ◽  
pp. 1650-1651 ◽  
Author(s):  
Logan S. Logendra ◽  
Jonathan G. Mun ◽  
Thomas J. Gianfagna ◽  
Harry W. Janes
Keyword(s):  
Production Systems ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Mature Stage ◽  
Time Interval ◽  
Tomato Production ◽  
Greenhouse Tomato ◽  
Significant Difference ◽  
Ethephon Treatment ◽  
Single Cluster

Ethephon (2-chloroethylphosphonic acid) was applied to single cluster greenhouse tomato crops (1000 ppm) at the green mature stage of fruit development or when 35% of the plants had fruits at the breaker stage. Fruits were harvested at the pink stage. Untreated fruit were harvested from 95 to 116 days after sowing whereas fruit from the green mature ethephon treatment were harvested from 92 to 102 days, three days earlier and with a reduction in the harvest window from 22 to 11 days. Fruit treated with ethephon at 35% breaker were harvested at the same time as untreated fruit, but harvest was completed after only 12 days. Fruit yield from the green mature ethephon treatment was reduced by about 30%, but there was no significant difference in fruit yield as a result of ethephon treatment at 35% breaker. Fruit color, firmness and soluble solids were evaluated one and six days after harvest. Fruit firmness and soluble solids were unaffected by treatment; however, fruit from the ethephon treatments were significantly redder in color. In a second experiment, ethephon was applied at 500 or 1000 ppm when 100% of the plants had fruit at the breaker stage. Fruit were harvested over a 7-day time interval compared to untreated fruit that were harvested over 14 days, and there was a small but significant increase in fruit yield for the 1000 ppm treatment. Both ethephon treatments also increased fruit soluble solids. For limited cluster tomato production systems, ethephon is effective in reducing the harvest window without loss in postharvest fruit quality.

scholarly journals 134 Growth, Photosynthesis, Fruit Yield, and Quality of Greenhouse Tomato Grown in Open or Closed Rockwool Production Systems with Different Nutrient Feedings

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 464E-465
Author(s):  
Xiuming Hao ◽  
Athanasios P. Papadopoulos
Keyword(s):  
Production Systems ◽  
Plant Biomass ◽  
Fruit Size ◽  
Culture Method ◽  
Production Method ◽  
Fruit Yield ◽  
Marketable Yield ◽  
Tomato Production ◽  
Conventional Culture

Two long-season tomato crops (Lycopersicon esculentum Mill. cv. Trust; in 1996 and 1997) were grown in an open rockwool system (conventional culture method) and in closed rockwool culture systems with different nutrient feedings to develop a closed tomato production system with zero discharge of nutrient solutions to the environment. The tomato grown in the closed rockwool systems with a modified rockwool or nutrient film technique (NFT) feeding formula achieved similar marketable yield as the tomato grown in the conventional open rockwool system. Similarly, there were no differences in early plant growth and photosynthesis, total plant biomass and biomass partitioning, fruit yield, or fruit size and grades. The tomato plants grown in the closed rockwool systems senesced slower, as demonstrated by higher photosynthesis in old leaves, and had better root systems than the plants grown in the conventional open rockwool system. The fruit quality of tomato produced in the closed rockwool systems was better than that of tomato produced in the open rockwool system in one of two crops. These results demonstrated that the closed rockwool system with optimized nutrient feeding is an economically and environmentally sound alternative to the conventional open rockwool production method.

Utilization of rice straw and tea composts for strawberry and tomato production

2020 ◽  
Vol 30 (4) ◽  
pp. 335-343
Author(s):  
R Ashrafi ◽  
RM Saiem ◽  
M Kamruzzaman ◽  
MSAA Mamun ◽  
HA Begum
Keyword(s):  
Rice Straw ◽  
Agricultural Waste ◽  
Total Sugar ◽  
Fruit Yield ◽  
Compost Tea ◽  
Tomato Production ◽  
Horticultural Crops ◽  
Beneficial Effects ◽  
Combined Application ◽  
Yield And Quality

The use of agricultural waste is of great interest to sustainable agriculture. An investigation was carried out to evaluate the effects of compost and compost tea made from agricultural waste rice straw on the yield and quality of two horticultural crops strawberry and tomato. In strawberry experiment, six treatments were considered which wereT1: 100% soil (as a control), T2: 80% soil + 20% compost, T3: 60% soil + 40% compost, T4: 40% soil + 60% compost, T5: 20% soil + 80% compost & T6: 100% compost. Results revealed that number of fruit, fruit yield and total sugar (%)was increased with the increasing level of compost up to 80% after that decreased at 100% compost. The treatment T5: 20% soil + 80% compost gave the best results among the treatments to grow strawberry with good yield (185.3 g/plant) and sweetness (total sugar 5.19%). On the other hand, six treatments i.e. T1: Control, T2: Compost (5 t/ha), T3: Compost tea (50% concentration), T4: Compost (5 t/ha) + Compost tea (50% concentration), T5: Compost tea (100% concentration) and T6: Compost (5t/ha) + Compost tea (100% concentration) were considered in tomato experiment. As a result, it was observed that combined application of compost (5 t/ha) along with compost tea (100% conc.) (T6) gave the highest yield of tomato than not only control (T1) but also single application of compost or compost tea (T2, T3, T4&T5). Level of compost tea concentration also showed significant effect on fruit yield of tomato. Comparing between treatment T4 and T6, fruit yield was found higher (1027.67 g/plant) in treatment T6: Compost (5t/ha) + Compost tea (100% conc.) than 961.3 g/plant in T4: Compost (5 t/ha) + Compost tea (50% conc.). So, it could be summarized that use of rice straw as compost and compost tea affects positively both in two experiments. The results of this study confirm the beneficial effects of compost to increase the yield and sweetness of strawberry and combination of compost and compost tea to increase the yield of tomato. Progressive Agriculture 30 (4): 335-343, 2019

Sign in / Sign up

Export Citation Format

Share Document