Heterosis and Inbreeding Depression for Yield of Pickling Cucumber (Cucumis sativus L.) Hybrids

Currently, both hybrid and inbred pickling cucumber cultivars are being grown commercially in the United States. Heterosis for yield in pickling cucumber has been previously reported. However, heterosis has not been repeatable in other studies. The objective of this study was to determine the existence of heterosis and inbreeding depression for yield in pickling cucumber. Six pickling cucumber inbreds (`Addis', `Clinton', M 12, M 20, `Tiny Dill', `Wisconsin SMR 18') were hybridized to form four F1 hybrid families (`Addis × M 20, `Addis' × `Wis. SMR 18', `Clinton' × M 12, M 20 × `Tiny Dill'). Within each family, F2, BC1A and BC1B generations were also formed. Thirty plants of each generation within each family were grown in 3.1-m plots for four replications in the spring and summer seasons of 1996 at the Horticultural Crops Research Station in Clinton, N.C. Data were collected at once-over harvest for total, marketable, and early yield in terms of number (1000 fruit/ha) and weight (Mg/ha). In addition to yield, a fruit shape rating was collected for each plot. High parent heterosis for yield (total and marketable fruit weight) was only observed for `Addis' × `SMR 18' grown in the summer season. The three other families did not exhibit heterosis for total, marketable, and early yield. Heterosis for shape rating was not observed for any family. `Addis' × `Wis. SMR 18' also exhibited inbreeding depression for total fruit weight, marketable fruit weight, early fruit number, and early fruit weight during the spring season and for marketable fruit number and marketable fruit weight during the summer season.

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Effects of Postemergence and Postemergence-Directed Halosulfuron on Triploid Watermelon (Citrullus Lanatus)

Weed Technology ◽

10.1614/wt-07-056.1 ◽

2008 ◽

Vol 22 (3) ◽

pp. 467-471 ◽

Cited By ~ 5

Author(s):

Peter J. Dittmar ◽

David W. Monks ◽

Jonathan R. Schultheis ◽

Katherine M. Jennings

Keyword(s):

Citrullus Lanatus ◽

Distal Region ◽

Fruit Weight ◽

Proximal Region ◽

Growth And Yield ◽

Crop Plant ◽

Fruit Number ◽

Crop Tolerance ◽

Triploid Watermelon ◽

Marketable Fruit

Studies were conducted in 2006 at Clinton and Kinston, NC, to determine the influence of halosulfuron POST (over the crop plant) or POST-directed (to the crop) on growth and yield of transplanted ‘Precious Petite’ and ‘Tri-X-313’ triploid watermelon. Treatments included a nontreated control, 39 g/ha halosulfuron applied POST-directed to 25% of the plant (distal or proximal region), POST-directed to 50% of the plant (distal or proximal; Precious Petite only), and POST. Watermelon treated with halosulfuron displayed chlorotic leaves, shortened internodes, and increased stem splitting. Vines were longest in the nontreated control (Tri-X-313 = 146 cm, Precious Petite = 206 cm) but were shortest in the POST treatment (Tri-X-313 = 88 cm, Precious Petite = 77 cm). Halosulfuron POST to watermelon caused the greatest injury (Tri-X-313 = 64%, Precious Petite = 67%). Halosulfuron directed to 25 or 50% (distal or proximal) of the plant caused less injury than halosulfuron applied POST. Stem splitting was greatest when halosulfuron was applied to the proximal area of the stem compared with POST-directed distal or POST. Internode shortening was greatest in treatments where halosulfuron was applied to the distal region of the stem. However, Tri-X-313 in the POST-directed 25% distal treatment produced similar total and marketable fruit weight as the nontreated control at Clinton. Fruit number did not differ among treatments for either cultivar. At Kinston, Precious Petite nontreated control and POST-directed 25% distal end treatment had greater marketable fruit weight than the POST-directed 50% proximal and POST treatments. The current halosulfuron registration allows POST application between rows or PRE. Limiting halosulfuron contact to no more than 25% of the watermelon plant will likely improve crop tolerance.

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Breeding for Root-knot Nematode Resistance in Cucumber

HortScience ◽

10.21273/hortsci.31.4.623b ◽

1996 ◽

Vol 31 (4) ◽

pp. 623b-623

Author(s):

S. Alan Walters ◽

Todd C. Wehner

Keyword(s):

North Carolina ◽

Yield Loss ◽

Nematode Resistance ◽

Root Knot Nematode ◽

Fruit Number ◽

Pickling Cucumber ◽

Quality Rating ◽

Marketable Fruit ◽

Stage 1 ◽

Trial Performance

Root-knot caused by Meloidogyne spp. is the primary disease of cucumber (Cucumis sativus L.) in North Carolina, causing an annual yield loss of approximately 12 %. All cucumber cultivars we have tested are resistant to M. hapla, but none are resistant to any of the four important nematodes found on cucumber in North Carolina: M. incognita, M. arenaria races 1 and 2, and M. javanica. However, we are preparing to release three cucumber inbreds with resistance to four out of five of those nematodes. `Marion' (NC-44), `Shelby' (NC-45), and `Lucia' (NC-46) are high yielding, monoecious pickling cucumber inbreds that have resistance to M. arenaria races 1 and 2, M. javanica, and M. hapla. Length: diameter ratio was 3.4, 3.0, 3.9 for `Marion', `Shelby', `Lucia' (`Calypso' was 2.9 in the same trial), respectively. Thus, different length requirements for the pickling industry can be met with the three cultivars. Based on the 1995 North Carolina stage 1 pickle trial, performance (as % of `Calypso') for `Marion', `Shelby', and `Lucia' respectively was 79%, 94%, and 115% for total fruit number/ha; 71%, 96%, and 113% for marketable fruit number/ha; and 102%, 84%, and 97% for fruit quality rating. Therefore, nematode resistant cultivars are available that match the performance of the gynoecious hybrid check cultivar for the region.

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The Effect of NPK-Zeo Fertilizer on Growth and Production of Cucumber (Cucumis sativus L.) in Iwoimopuro Village, Kolaka District

AgroTech Journal ◽

10.31327/atj.v2i1.937 ◽

2019 ◽

Vol 2 (1) ◽

pp. 7-13

Author(s):

Tanti Anugrah ◽

Musadia Afa ◽

Yolanda Fitria Syahri

Keyword(s):

Plant Height ◽

Cucumis Sativus ◽

Block Design ◽

Fruit Weight ◽

Leaf Number ◽

Cucumis Sativus L ◽

Fruit Number ◽

Randomized Block Design ◽

Significant Difference ◽

Flower Age

The Effect of NPK-Zeo Fertilizer on Growth and Production of Cucumber (Cucumis sativus L.) in Iwoimopuro Village, Kolaka District. This research aimed to determine the effect of liquid fertilizer NPK-ZEO growth and result of cucumbers. This research has taken place in the village Iwoimopuro, District Wolo, Kolaka District. This research is compiled using a Randomized Block Design (RBD). Obser rations were made on plant height, leaf number, age of the plant begins to flower, age of the plant begins to bear fruit, fruit number and fruit weight. The data were processed using the Finger Print Car List (Anova) followed by Least Significant Difference Test (LSD). The results showed that administration of NPK-ZEO significant effect on plant height, leaf number, age of the plant begins to flower, age of the plant begins to bear fruit, fruit number and fruit weight

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PRODUCTION AND ECONOMIC FEASIBILITY OF TRELLISING CUCUMBERS

HortScience ◽

10.21273/hortsci.25.9.1067c ◽

1990 ◽

Vol 25 (9) ◽

pp. 1067c-1067

Author(s):

V. M. Russo ◽

B. W. Roberts ◽

R. J. Schatzer

Keyword(s):

Fruit Weight ◽

Economic Feasibility ◽

Small Scale ◽

Fresh Market ◽

Marketable Yield ◽

Cucumis Sativus L ◽

Net Returns ◽

Production Economic ◽

Marketable Fruit ◽

Better Than

Trellising was investigated for intensive, small-scale, fresh market cucumber (Cucumis sativus L.) production. Economic feasibility of trellising was examined. The cultivars Dasher II, Marketmore 76, and PetoTripleMech were evaluated using trellising and ground culture at two locations in Oklahoma. The cultivar PetoTripleMech is normally grown as a processing cucumber. Here it was evaluated as a fresh market entry. Trellising significantly improved marketable yield of the three cultivars at both locations in comparison to ground culture. PetoTripleMech yields were equal to, or better than, the fresh market standards Dasher II and Marketmore 76. Average marketable fruit weight was not affected by trellising. Economic analysis indicated that trellising is a viable management system for small-scale cucumber production because the gross and net returns to the producer were increased by 20% and 10% respectively.

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YIELDS AND FRUIT PRODUCTION PATTERNS OF ELEVEN EGGPLANT CULTIVARS

HortScience ◽

10.21273/hortsci.41.3.515c ◽

2006 ◽

Vol 41 (3) ◽

pp. 515C-515

Author(s):

Brian A. Kahn ◽

Mark E. Payton

Keyword(s):

Field Study ◽

Fruit Quality ◽

Solanum Melongena ◽

Fruit Production ◽

Fruit Weight ◽

Fruit Number ◽

Two Factors ◽

Marketable Fruit ◽

Black Beauty ◽

Over Time

Eggplants (Solanum melongena L.) were grown from transplants in a field study at Bixby, Okla., in 2005. Plants were harvested twice a week for 7 weeks. Data were taken from 3 individual plants per plot × 11 cultivars × 3 replications. The open-pollinated `Black Beauty' was inferior to the hybrids for yield and fruit quality. Patterns of cumulative percent marketable fruit number did not differ for 3 of the 4 cultivars producing the numerically highest (not always statistically highest) marketable fruit weights per plant (`Classic', `Nadia', and `Santana'). `Dusky' was the exception; fruit number peaked relatively early, but it still totaled among the highest for marketable fruit weight per plant. This might be considered an efficient fruiting pattern. Apart from `Dusky', a relatively high cumulative percent marketable fruit number throughout the season tended to be associated with an intermediate to low marketable fruit weight per plant. Two factors usually were responsible for this pattern: relatively low average marketable fruit weight, or high cull production. Despite significant differences in individual marketable fruiting patterns and average fruit weights, one relatively simple curvilinear model gave an excellent estimation of total and marketable eggplant fruit production (respectively) over time. The model was pct = 1/(1+exp(-(a+b*day))), where pct = estimated cumulative percent based on number of fruit, a = intercept, and b = slope.

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

Journal of Agriculture and Natural Resources ◽

10.3126/janr.v3i1.27166 ◽

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.

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PRODUÇÃO DE PEPINO (Cucumis sativus L.), ENXERTADO E NÃO ENXERTADO, SUBMETIDO À ADUBAÇÃO CONVENCIONAL EM COBERTURA E VIA FERTIRRIGAÇÃO, EM CULTIVO PROTEGIDO

Irriga ◽

10.15809/irriga.2001v6n2p54-61 ◽

2001 ◽

Vol 6 (2) ◽

pp. 54-61

Author(s):

Eurides Kuster Macedo Júnior ◽

João Domingos Rodrigues ◽

Roberto Lyra Villas Boas ◽

Rumy Goto ◽

Sheila Zambello de Pinho

Keyword(s):

Plant Height ◽

Cucumis Sativus ◽

Block Design ◽

Fruit Weight ◽

Cucumis Sativus L ◽

Fruit Number ◽

Experimental Station ◽

Randomized Block Design ◽

Number Of Leaves ◽

Cucumber Yield

PRODUÇÃO DE PEPINO (Cucumis sativus L.), ENXERTADO E NÃO ENXERTADO, SUBMETIDO À ADUBAÇÃO CONVENCIONAL EM COBERTURA E VIA FERTIRRIGAÇÃO, EM CULTIVO PROTEGIDO Eurides Küster Macedo JuniorUniversidade Estadual do Oeste do Paraná/Unioeste/Agronomia-Campus de Marechal Cândido Rondon - Fone: 45-254-3216 - E mail:[email protected] Pernambuco, 1777 - CEP 85960-000 Marechal Cândido Rondon - PRJoão Domingos RodriguesRoberto Lyra Villas BoasRumy GotoSheila Zambello de PinhoUniversidade Estadual Paulista “Júlio de Mesquita Filho”/UNESP-Campus de Botucatu 1 RESUMO Este experimento foi conduzido na Fazenda Experimental São Manuel da Faculdade de Ciências Agronômicas, em ambiente protegido, com início em 23 de janeiro e término em 18 de abril de 1997, com objetivo de avaliar os efeitos e freqüência de adubações nitrogenadas e potássicas, aplicadas em cobertura, via fertirrigação e de forma convencional sobre a produtividade de pepino não enxertado e enxertado. O delineamento experimental foi em blocos casualizados com seis tratamentos e quatro repetições. Avaliou-se à altura de planta, número de folhas, produção, número de fruto, peso de fruto e número de fruto por planta. As plantas de pepino enxertado apresentaram valores superiores para altura de planta, número de folhas, produção, número de fruto, peso de fruto e número de fruto por planta. Nos parâmetros com efeito significativo, percebe-se que a fertirrigação acompanha os maiores valores. UNITERMOS: pepino, enxertia, adubação, fertirrigação MACEDO JUNIOR, E.K., RODRIGUES, J. D., VILLAS BOAS, R. L., GOTO, R. PINHO, S. Z. CUCUMBER YIELD GRAFTED AND NOT GRAFTED SUBMITTED TO FERTIGATION AND CONVENTIONAL FERTIGATION IN GREENHOUSE CONDITIONS 2 ABSTRACT This experiment was conducted at the São Manuel Experimental Station –FCA/UNESP, in greenhouse conditions, beginning on January 23 and ending on April 18. The objective was to evaluate the effects of nitrogen and potassium applied through fertigation and through conventional way on the productivity of grafted and non-grafted cucumber. The experimental design was a randomized block design with six treatments and four replications. Measurements included plant height, number of leaves, production, fruit number, fruit weight, and fruit number per plant. The grafted cucumber plants presented higher values for plant height, number of leaves, production, fruit number, fruit weight and fruit number per plant. For the parameters with statistical significant effects (p<0.05), fertigation yielded the largest values. KEYWORDS: cucumber, graft, fertilizer, fertigation

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Effect of Humic Acid on Growth and Productivity of Tomato Plants Under Heat Stress

Journal of Horticultural Research ◽

10.1515/johr-2017-0022 ◽

2017 ◽

Vol 25 (2) ◽

pp. 59-66 ◽

Cited By ~ 2

Author(s):

Islam Mohamed Yassin Abdellatif ◽

Youssef Youssef Abdel-Ati ◽

Yousry Tammam Abdel-Mageed ◽

Mohamed Abdel-Moneim Mohamed Hassan

Keyword(s):

Heat Stress ◽

Humic Acid ◽

Total Yield ◽

Fruit Weight ◽

Summer Season ◽

Soluble Solids ◽

Fresh Weight ◽

Tomato Plants ◽

Fruit Number ◽

Continental Climate

Abstract The purpose of this study was to evaluate the effect of humic acid (HA) applied at 4.8, 9.6 and 14.4 kg·ha−1 on the growth and productivity of two tomato hybrids Nema 1400 and Platinium 5043 under hot continental climate. HA was applied twice to soil: the first one – three weeks from transplanting and the second one, after one week from the first application, in both seasons. Application of HA during the summer season targeted a great results on tomato plant growth and productivity. HA at 14.4 kg·ha−1 in-creased the vegetative growth of tomatoes (plant height and fresh weight) and flowering parameters (number of flower clusters and flowers per plant) as well as yield characters (fruit number per plant and fruit weight, which resulted in higher early and total yield) in both seasons. HA application had the least impact on fruit number per plant, and on vitamin C and total soluble solids (TSS) concentration as compared with control.

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CHEMICAL THINNING OF `SURECROP' PEACH WITH LATRON AG-98 SURFACTANT

HortScience ◽

10.21273/hortsci.30.3.430a ◽

1995 ◽

Vol 30 (3) ◽

pp. 430a-430

Author(s):

A.W. Caylor ◽

W.A. Dozier ◽

J. Pitts

Keyword(s):

Fruit Set ◽

Fruit Weight ◽

Shoot Length ◽

Fruit Yield ◽

Acceptable Level ◽

Fruit Number ◽

Marketable Fruit ◽

Peach Trees

Latron AG-98 (formerly named Triton AG-98) was applied to 8-year-old `Surecrop' peach trees on Lovell rootstock at 0%, 2%, 4%, and 6% (v/v) on 13 Mar. 1990 and 1992 and 28 Mar. 1991. Our objective was to determine the effect Latron AG-98 had on percentage of blossoms removed, fruit set, total fruit count and yield, and marketable fruit weight. The percentage of blossoms removed increased with increasing rates of Latron AG-98. The 4% and 6% rates removed the greatest percentage of blooms in all 3 years. The number of fruit per 50 cm of shoot length, number of fruit removed by hand-thinning, percent fruit set, total fruit number, and total fruit yield decreased with increasing rates of Latron AG-98 in 1990 and 1992 but not in 1991. The marketable fruit weight increased with increasing rates of Latron AG-98 in 1990 and 1992 but not in 1991. Latron AG-98 was not effective in 1991 because of a 2-day delay in application. Latron AG-98 was effective in removing blossoms from `Surecrop' peach at all three rates. However, the 4% and 6% rates reduced the yields below a commercially acceptable level. The 2% rate of Latron AG-98 could be useful as a tool to reduce the labor required to hand-thin peaches.

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Effect of Seasons, Mulching Materials, and Fruit Quality on a Cucumber (Cucumis sativus L.) Variety

Asian Journal of Agricultural and Horticultural Research ◽

10.9734/ajahr/2019/v3i229996 ◽

2019 ◽

pp. 1-11

Author(s):

Olufemi Victor Ajibola ◽

Bamidele Julius Amujoyegbe

Keyword(s):

Block Design ◽

Total Yield ◽

Fruit Weight ◽

Fruit Yield ◽

Plastic Mulch ◽

Cucumis Sativus L ◽

Branch Number ◽

Fruit Length ◽

Plastic Mulching ◽

Marketable Fruit

Aims: The experiment aimed to investigate the effect of seasons (early raining and late raining) and mulching materials (Black polyethylene, White polyethylene, Grass-mulch and control) on marketable fruit yield of cucumber. Study Design: The experimental design was a 4 x 4 factorial laid out in a randomized complete block design (RCBD) with three replications. Data were collected on plant morphology and fruit components; number of leave, vine length, branch number, tendril number, stem diameter; number of fruits per plant, fruit length, fruit circumference, fruit weight, number of marketable fruits per plot and number of non-marketable fruit per plot and fruit yield per plot (converted to per hectare). Place and Duration of Study: The present study was carried out at Teaching and Research Farm of Obafemi Awolowo University (OAU), Ile-Ife, Nigeria (located on longitude 04º33lE and latitude 08º28lN at 244 m above sea level) during the growing seasons of 2017 and 2018. Methodology: The data collected were subjected to analysis of variance (ANOVA) using (SAS, 2003 version). Means of significant treatments were separated using Duncan`s Multiple Range Test (DMRT). Results: The obtained results revealed that seasons and mulching materials had significant effect on some of the parameters investigated. Late season significantly enhanced the fruit length, fruit weight and total fruit yield when compared with the early seasons. The mulching materials, black polyethylene mulching materials significantly enhanced the morphology and some of fruit components; fruit length and fruit weight while white plastic mulch significantly improved the number of fruit per plant, fruit diameter and total yield of cucumber at both early and late seasons followed by grass-mulch. However, control consistently produced the highest number of non-marketable fruits when compared with other treatments investigated. Conclusion: Therefore, planting of Poinsett76 variety towards the ending of raining seasons with the application of white plastic mulching is highly recommended for the small holder farmers.

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