scholarly journals YIELDS AND FRUIT PRODUCTION PATTERNS OF ELEVEN EGGPLANT CULTIVARS

HortScience ◽  
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.

scholarly journals Relating Plant Architecture to Eggplant Fruit Quality

2013 ◽  
Vol 138 (6) ◽  
pp. 428-432
Author(s):  
Brian A. Kahn
Keyword(s):  
Fruit Quality ◽  
Solanum Melongena ◽  
Soil Surface ◽  
Dry Weight ◽  
Fruit Production ◽  
Fruit Rot ◽  
Individual Plant ◽  
Shoot Dry Weight ◽  
The Mean ◽  
Marketable Fruit

A 2-year study was conducted at Bixby, OK, to examine shoot characteristics of several eggplant (Solanum melongena) cultivars, including the vertical distribution patterns of fruit production, and to examine possible relationships of these traits to aspects of fruit quality. Plants of 11 cultivars of purple-fruited eggplant were field-grown following local production practices. Fourteen harvests of fruit that had reached horticultural maturity were made from 99 plants in each year over a period of ≈45 days per year. On each harvest date, every fruit that was harvested from an individual plant was charted. Before a fruit was severed from the plant, heights were measured from the soil surface to the pedicel attachment and to the blossom end. Each fruit was then weighed and categorized for marketability. On the day after the final harvest, each data plant was measured for height and diameter of the main stem and then severed at soil level for subsequent measurement of shoot dry weight. ‘Classic’, ‘Dusky’, ‘Megal’, and ‘Santana’ were the only cultivars that produced more than 50% marketable fruit in both years. There were no consistent relationships between plant height, stem diameter, or shoot dry weight and fruit quality. For a given cultivar, the fruiting plane was defined as the vertical space in which fruit were found over the course of the harvest period. This was delimited at the top by the mean height above the soil of the point of pedicel attachment and at the bottom by the mean height above the soil of the blossom end. The cultivars differed in fruiting planes, but height of fruit set was relatively unimportant as a determinant of overall fruit quality. Cull fruit usually had blossom ends that were higher off the ground than marketable fruit. The primary reason for cull fruit production was determined for two cultivars: ‘Black Beauty’ had poor fruit color and ‘Black Bell’ was relatively susceptible to fruit rot (primarily caused by Phomopsis vexans). Fruit scarring was found to be a major contributor to cull fruit production. Cultivars differed in fruit scarring in 1 of 2 years, and there was evidence that scarred fruit occurred higher in the crop canopy than marketable fruit.

scholarly journals Fruit production and quality of mini-watermelon with different number of stems, in troughs cultivation system and substrate reuse

2021 ◽  
Vol 42 (2) ◽  
pp. 471-486
Author(s):  
Josiéle Garcia Dutra ◽  
◽  
Roberta Marins Nogueira Peil ◽  
Tatiana da Silva Duarte ◽  
Cesar Valmor Rombaldi ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Positive Impact ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Plant Management ◽  
Cultivation System ◽  
Fruit Number ◽  
Yield And Quality ◽  
The One

Substrate-filled pots are growing systems commonly used for vegetable farming. However, few are the studies available relating them to mini-watermelon cultivation. Our study presents a growing system using substrate-filled troughs and leachate recirculation as a low-cost and less environmentally harmful soilless cultivation system for mini-watermelons. For a growing system to be viable and provide high fruit yield and quality, several aspects must be studied, including substrate physical properties and reuse potential in successive crops, besides plant management-related aspects. Therefore, our goal was to evaluate the effects of a trough system and substrate reuse on changes in the properties of raw rice husk and on fruit yield and quality for mini-watermelons at different stem training. To this purpose, two trials were conducted using nutrient solution recirculation systems. In the first, we evaluated the effects of pot and trough systems. In the second, first- and second-use substrates were compared in the trough system. In both trials, one and two-stem training systems were analyzed. The results of the first trial show that the trough system had a greater positive impact on substrate water holding capacity (WHC), which increased from 7.9 to 15.6%, while the pots increased substrate WHC only to 11.2%. However, both systems neither affected fruit yield (8 kg/m² on average) nor fruit quality. The two-stem training promoted higher fruit yields (4.2 kg/plant) and contents of total soluble solids - TSS (11.4 °Brix) but did not affect average fruit weight. Moreover, the one-stem training provided higher fruit number (7.3 fruits/m²) and fruit yield (9.7 kg/m²). In the second trial, the reused substrate showed a higher WHC (12.4%) than the one used for the first time (9.9%). The reused substrate also provided better results in terms of fruit yield and quality (5.9 fruits/m², 5.3 kg/m², and 10.5o Brix). In the second trial, two-stem training also increased average fruit weight, and hence yields per plant. Nevertheless, the stem number did not affect fruit number per plant, fruit yield per square meter, and fruit quality.

scholarly journals Impact of organic manure and combination of N P K S, on yield, fruit quality and fruit mineral content of Khenazi date palm (Phoenix dactylifera L.) cultivar

2017 ◽  
Vol 1 ◽  
pp. 335
Author(s):  
Elsadig Hassan Elsadig ◽  
Hameed Jasim Aljuburi ◽  
Ali Hamad Bashir Elamin ◽  
Mohamed Osman Gafar
Keyword(s):  
Fruit Quality ◽  
Date Palm ◽  
Nutrient Content ◽  
Phoenix Dactylifera ◽  
Fruit Weight ◽  
Organic Manure ◽  
Mineral Nutrient ◽  
Fruit Number ◽  
Combination Treatments ◽  
Phoenix Dactylifera L

This study was carried out during three successive seasons 2011, 2012 and 2013 at a private orchard located in Al- Hello in Ajman Emirate (UAE). The experiment was designed to study the effect of organic manure and NPKS as soil application on yield, fruit quality, and fruit mineral nutrient content of Khenazi date palm cultivar grown in sandy soil. Fertilization treatments consisted of N1, 600g or N2, 1000g (urea 46%N), P 800g (triple superphosphate, 48% P2O5), K 1200g (potassium sulphate, 50% K2SO4) and S 700g sulphur (90% granular S), in addition to organic manure. Al experimental trees received 100g mixture of micronutrients, with the exception of the control. The results showed that combination treatments and organic manure significantly affected fruit weight, flesh weight, fruit volume, moisture content and fruit TSS. Application of different fertilization treatments significantly affected yield components of fruit, number of fruits/strand, fruit number/bunch, fruit set percent and total fruit yield / palm. The study revealed that combination of fertilizers improved fruit nutrient content of N, P, K, Ca, Mg, Fe, Zn, Mn and Cu. Moisture and TSS% content, number of fruits/strand, number of fruits/bunch, fruit nutrients content of Fe, Mn and Zn were significantly different due to the application of N1+K+S.

scholarly journals Yield Performance of Six Lychee Cultivars Grown at Two Locations in Puerto Rico

2016 ◽  
Vol 26 (6) ◽  
pp. 748-753
Author(s):  
Ricardo Goenaga ◽  
David Jenkins ◽  
Angel Marrero
Keyword(s):  
Puerto Rico ◽  
Ethnic Diversity ◽  
Fruit Production ◽  
Fruit Weight ◽  
University Of Puerto Rico ◽  
Yield Performance ◽  
Agricultural Experiment ◽  
Marketable Fruit ◽  
The University ◽  
Lower Production

The globalization of the economy, increased ethnic diversity, and a greater demand for healthy and more diverse food production has increased the demand for tropical fruits. There is a lack of formal experimentation to determine yield performance and fruit quality traits of lychee (Litchi chinensis) cultivars. Six lychee cultivars (Bosworth-3, Brewster, Groff, Mauritius, Kaimana, Salathiel) grown on Mollisol and Inceptisol soils were evaluated for 8 years at the Adjuntas Agricultural Experiment Station of the University of Puerto Rico (UPR-Adjuntas) and La Balear farm, Adjuntas, Puerto Rico, respectively. At UPR-Adjuntas and La Balear, cultivar Groff had a significantly higher production (257,296 fruit/ha) of total fruit than other cultivars, whereas Salathiel had the lowest. However, total fruit production of ‘Groff’ was not significantly different from ‘Kaimana’ and ‘Bosworth-3’at La Balear. At UPR-Adjuntas, cultivars Groff and Bosworth-3 had significantly higher number of marketable fruit than the rest of the cultivars averaging 171,760 fruit/ha. At La Balear, ‘Kaimana’ had a higher number of marketable fruit, but it was not significantly different from ‘Groff’, ‘Bosworth-3’, and ‘Mauritius’, averaging 291,360 fruit/ha. At both sites, individual fruit weight of marketable fruit was higher in ‘Kaimana’ than the rest of the cultivars. However, at La Balear, there were no significant differences between ‘Kaimana’ and ‘Mauritius’. At both locations, cultivars exhibited erratic production patterns, which were characterized by lower production during 1 or 2 successive years following heavy cropping. At current farm gate prices and fruit yield reported in this study, cultivars Groff, Bosworth-3, and Kaimana can generate a good income for growers, and allow them to diversify crops as part of their farm operations.

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

2008 ◽  
Vol 22 (3) ◽  
pp. 467-471 ◽  
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.

scholarly journals A Spontaneous Eggplant (Solanum melongena L.) Color Mutant Conditions Anthocyanin-free Fruit Pigmentation

HortScience ◽  
2016 ◽  
Vol 51 (7) ◽  
pp. 793-798 ◽  
Author(s):  
Carmina Gisbert ◽  
Judith M. Dumm ◽  
Jaime Prohens ◽  
Santiago Vilanova ◽  
John R. Stommel
Keyword(s):  
Solanum Melongena ◽  
Spontaneous Mutant ◽  
Morphological Attributes ◽  
Color Mutant ◽  
True Breeding ◽  
Marker Profile ◽  
Marketable Fruit ◽  
Black Beauty ◽  
Anthocyanin Biosynthetic Genes

We identified a single plant in a grow out of the eggplant (Solanum melongena L.) variety ‘Black Beauty’ bearing green fruit. ‘Black Beauty’ normally produces violet/black pigmented fruit attributed to anthocyanin accumulation. We selected the green-fruited true-breeding genotype E13GB42 from the S2 generation obtained from selfing of the S0 green-fruited color mutant. Characterization of 12 simple sequence repeat (SSR) markers, eight fruit morphological attributes and fruit yield support E13GB42 arising as a spontaneous mutant of ‘Black Beauty’. With the exception of fruit calyx prickliness, E13GB42 was not significantly different from ‘Black Beauty’ for fruit morphological attributes and yield. E13GB42 exhibited an SSR marker profile identical to that of ‘Black Beauty’ but polymorphic with that of eight violet/black-fruited modern eggplant hybrids, older open-pollinated varieties and landraces. Transcript levels of key anthocyanin biosynthetic genes (Chs, Dfr, and Ans) and regulatory genes (MybC, Myc, and Wd) were significantly lower in the green-fruited E13GB42 mutant in comparison with the black-fruited variety ‘Black Beauty’ at various stages of fruit development ranging from small post-anthesis fruit to full-size marketable fruit. Progeny obtained from selfing of the original mutant and reciprocal crosses with ‘Black Beauty’ produced violet, green, and green with violet striped color classes that together were not compatible with one or two gene inheritance models, suggesting that the mutation responsible for the E13GB42 phenotype influences multiple genetic factors that control fruit pigmentation.

scholarly journals Particle Film Application Influences Apple Leaf Physiology, Fruit Yield, and Fruit Quality

2001 ◽  
Vol 126 (2) ◽  
pp. 175-181 ◽  
Author(s):  
D. Michael Glenn ◽  
Gary J. Puterka ◽  
Stephen R. Drake ◽  
Thomas R. Unruh ◽  
Allen L. Knight ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Production Systems ◽  
Carbon Assimilation ◽  
Fruit Production ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Yield Potential ◽  
Leaf Physiology ◽  
Malus Sylvestris ◽  
Tree Fruit

Particle film technology is a developing pest control system for tree fruit production systems. Trials were performed in Santiago, Chile, and York Springs, Pa., Wenatchee and Yakima, Wash., and Kearneysville, W. Va., to evaluate the effect of particle treatments on apple [Malus sylvestris (L.) Mill. var. domestica (Borkh) Manst.] leaf physiology, fruit yield, and fruit quality. Leaf carbon assimilation was increased and canopy temperatures were reduced by particle treatments in seven of the eight trials. Yield and/or fruit weight was increased by the particle treatments in seven of the eight trials. In Santiago and Kearneysville, a* values of the fruit surface were more positive in all trials although a* values were not increased in Wenatchee and Yakima. Results indicate that particle film technology is an effective tool in reducing heat stress in apple trees that may result in increased yield potential and quality.

scholarly journals Weather Affects Seedless Watermelon Yield, But Not Fruit Size or Quality

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 748E-748 ◽  
Author(s):  
Timothy E. Elkner* ◽  
David H. Johnson
Keyword(s):  
Fruit Quality ◽  
Total Yield ◽  
Fruit Size ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Fruit Number ◽  
Seedless Watermelon

Medium-sized triploid watermelons were evaluated in southeast Pennsylvania in 2002 and 2003 to determine the best adapted cultivars for this region. The 2002 season was unusually hot and dry, while 2003 was unusually cool and wet. Yields and fruit quality were compared for the eight cultivars that were grown both seasons to determine the effect of weather on seedless watermelon. Cooler temperatures reduced total fruit number and total yield but not average fruit weight or soluble solids. Researchers evaluating triploid watermelons over several seasons can compare size and °Brix among cultivars, but will need to be cautious when predicting total yields.

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

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 450A-450
Author(s):  
Christopher S. Cramer ◽  
Todd C. Wehner
Keyword(s):  
Inbreeding Depression ◽  
The United States ◽  
Fruit Weight ◽  
Summer Season ◽  
Research Station ◽  
Cucumis Sativus L ◽  
Fruit Number ◽  
Pickling Cucumber ◽  
M 12 ◽  
Marketable Fruit

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.

scholarly journals PENGARUH DOSIS PUPUK KANDANG SAPI DAN PUPUK ORGANIK CAIR TERHADAP PERTUMBUHAN DAN HASIL TANAMAN TERUNG UNGU (Solanum Melongena L.)

2018 ◽  
Vol 11 (2) ◽  
pp. 23-34 ◽  
Author(s):  
Yona Prastya ◽  
Palupi Puspitorini
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Organic Fertilizer ◽  
Solanum Melongena ◽  
Fruit Weight ◽  
Growth And Yield ◽  
Cow Manure ◽  
Fruit Length ◽  
Two Factors ◽  
Number Of Leaves

This study aims 1) To determine the effect of the interaction types of cow manure with liquid organic fertilizer on the grwoth and yield of purple eggplant. 2) two know the effect of cow manure on the growth and yield of purple eggplant, 3) to know in the influence of liquid organic fertilizier on the growth and yield of purple eggplant . this research was conducted by using Randomizedby Block Design in Faktorial ( RAK ) with two factors, the first factor is Cow manure (K), consisting of three levels ie cow manure 500 gram (K1), cow manure 750 gram (K2), com manure 1000 gram  (K3 ). The second factor is liquid organic fertilizer ( P ) consists of three levels : liquid organic fertilizer 3 mili ( P1 ) liquid organik fertilizer 6 mili (P2), liquid organik fertilizer 9 mili (P3). The observed variables in include plant  height, number of leaves, number of fruits, fruit length and fruit weight . Data were analyzed using analysis of variance (ANOVA) level of 5%. The results showed that: there was no interaction between cow manure and liquid organic fertilizer on growth and yield of purplish eggplant. Treatment of cow manure 500 gram ( K1 ) effect on plant height 56 hst and cow manure 1000 gram (K3 ) have an effect on total fruit length. In the treatment of liquid organik fertilizer 6 mili ( P2 ) effect on plant height 28 hst and the treatment of liquid fertilizerr 9 mili (P3 ) have an effect to harvest length 1. There is no interaction between cow manure an liquid fertilizer to the growth and yield of eggplant purple.

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