scholarly journals Yield and Fruit Quality Traits of Carambola Cultivars Grown at Three Locations in Puerto Rico

2007 ◽  
Vol 17 (4) ◽  
pp. 604-607
Author(s):  
Ricardo Goenaga
Keyword(s):  
Puerto Rico ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Intensive Management ◽  
Marketable Yield ◽  
Averrhoa Carambola ◽  
Solids Concentration ◽  
High Production ◽  
Marketable Fruit ◽  
Soluble Solids Concentration

There is a scarcity of information on how carambola (Averrhoa carambola) cultivars perform in various agroenvironments. Nine carambola cultivars—Arkin, B-10, B-16, B-17, Kajang, Kari, Lara, Sri Kembangan, and Thai Knight—grown on an Oxisol, an Ultisol, and a Mollisol were evaluated for 4 years under intensive management at Isabela, Corozal, and Juana Díaz, PR, respectively. There were no significant differences in number and weight of marketable fruit per hectare area among locations averaging 258,761 fruit/ha and 30,978 kg·ha−1, respectively. There were no significant differences of marketable fruit weight per hectare among highest yielding cultivars B-17, Thai Knight, and Sri Kembangan between locations. The average marketable fruit weight for these highest-yielding cultivars was 36,060 kg·ha−1. ‘Arkin’ and ‘B-16’ were the lowest yielding cultivars, averaging 23,490 kg·ha−1 of marketable fruit. ‘Kari’ produced significantly longer fruit at all locations, whereas ‘B-16’ produced the shortest fruit. Significantly higher soluble solids concentration values were obtained from fruit of ‘B-17’ at all locations, whereas lower values were obtained from those of ‘Arkin’. Overall, cultivars were highly adaptable to the diverse agroenvironments in which they were planted. The fact that ‘B-17’ had high production of marketable fruit, high marketable yield, and high soluble solids concentration at all locations makes this cultivar suitable for planting in diverse agroenvironments.

scholarly journals Yield and Fruit Quality of Carambola Cultivars Grown at Three Locations in Puerto Rico

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 752C-752 ◽  
Author(s):  
Ricardo Goenaga* ◽  
Edmundo Rivera
Keyword(s):  
Puerto Rico ◽  
Fruit Quality ◽  
Fruit Weight ◽  
Intensive Management ◽  
Averrhoa Carambola ◽  
Marketable Fruit

Nine carambola (Averrhoa carambola) cultivars grown on an Oxisol, Ultisol, and Mollisol were evaluated for 2 years under intensive management at Isabela, Corozal and Juana Diaz, Puerto Rico, respectively. There were no significant differences in number and weight of marketable fruits per hectare between Corozal and Isabela; average values for both locations were 249,824 fruits/ha and 29,864 kg/ha. At Juana Diaz these values were 196,254 fruits/ha and 24,339 kg/ha, respectively. There were no significant differences in weight of marketable fruit per hectare among cultivars B-17, Thai Knight, B-10, Sri Kembangan, and Kajang between locations. The average marketable fruit weight for these higher yielding cultivars was 31,457 kg/ha. Cultivar Kari produced significantly longer fruits at all locations, whereas cultivar B-16 produced the shortest fruits. Significantly higher brix values were obtained from fruits of cultivar B-17 at all locations whereas lower values were obtained from those of Arkin.

scholarly journals Yield and Fruit Quality Traits of Atemoya Hybrids Grown in Puerto Rico

2016 ◽  
Vol 26 (4) ◽  
pp. 547-551
Author(s):  
Ricardo Goenaga ◽  
David Jenkins
Keyword(s):  
Puerto Rico ◽  
Fruit Quality ◽  
Soluble Solids ◽  
Quality Traits ◽  
Tropical Fruits ◽  
Annona Squamosa ◽  
Solids Concentration ◽  
Fruit Quality Traits ◽  
Marketable Fruit ◽  
Soluble Solids Concentration

As consumers seek healthy and more diverse food products, the demand for tropical fruits has increased significantly during the last 15 years. There is a lack of formal experimentation to determine the yield performance and fruit quality traits of atemoya (Annona squamosa × A. cherimola) hybrids. Six atemoya hybrids (‘Bradley’, ‘Geffner’, ‘Priestly’, ‘Lisa’, ‘47-18’, and ‘75-9’) grown on an Oxisol soil were evaluated for 4 years at Isabela, PR. ‘Geffner’ and ‘Lisa’ had the highest number of marketable fruit averaging 8542 fruit/ha, and the highest yield of marketable fruit, averaging 1507 kg·ha−1; they did not differ from each other, but were greater than all other hybrids. Individual weight of marketable fruit was significantly higher in ‘75-9’ and ‘Priestly’ which averaged 264.8 g. Significantly higher soluble solids concentration values were obtained from fruit of ‘75-9’, ‘Bradley’, and ‘Geffner’ which averaged 23.8%; they did not differ from each other, but were greater than all other hybrids.

scholarly journals AN EVALUATION OF BENZYLADENINE AS A POSSIBLE CHEMICAL THINNER OF “EMPIRE”

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 592a-592
Author(s):  
V.E. Emongor ◽  
D.P. Murr ◽  
J.T.A Proctor ◽  
E.C. Lougheed
Keyword(s):  
Field Trials ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Research Station ◽  
Full Bloom ◽  
Ethylene Concentration ◽  
Solids Concentration ◽  
Cambridge Research ◽  
Thinning Effect ◽  
Soluble Solids Concentration

Field trials at Cambridge Research Station, Ontario, Canada, studied the thinning effect of benzyladenine (BA) on eighteen-year-old “Empire” apple trees. At 16 days after full bloom (fruit diameter 12.87 mm) whole trees were hand sprayed to drip point with BA (0, 100, or 200 mg.1-1). Untreated control trees were compared with treated and hand thinned trees. BA significantly reduced crop load on “Empire”. The thinning response to BA was linear, with recommended thinning occurring at 200 mg.1-1. At harvest, fruit weight, size (diameter and length), flesh firmness and soluble solids concentration, chlorophyll and anthocyanin contents, and seed number were increased by BA treatments. BA had no effect on fruit L:D ratio, internal ethylene concentration, maturity, and the onset of the respiratory climacteric, but significantly reduced respiration at harvest. BA also reduced ethylene production and ACC content at harvest, though the reduction was not significant. Although firmness of BA-treated fruit was significantly higher at harvest, upon storage for 1 month at 0-0.5°C and 90-95% RH the firmness advantage was lost BA shows potential as a thinner of “Empire” apple and has advantage of increasing fruit weight and size, since “Empire” is a relatively small apple compared to other commercial cultivars.

scholarly journals Postharvest Sensory and Physicochemical Attributes of Honey Dew Melon Fruits

HortScience ◽  
1992 ◽  
Vol 27 (9) ◽  
pp. 1012-1014 ◽  
Author(s):  
Gene Lester ◽  
Krista C. Shellie
Keyword(s):  
Fruit Shape ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Epidermal Tissue ◽  
Solids Concentration ◽  
Fruit Preference ◽  
L Value ◽  
Fruit Flavor ◽  
Soluble Solids Concentration ◽  
Physicochemical Measurements

Physicochemical and sensory attributes of fully mature honey dew melon (Cucumis melo L. var. inodorus Naud.) fruits were evaluated 10 days after storage for eight commercial cultivars grown in two locations. Cultivars varied in degree of pref- erence expressed by panelists' ratings for overall fruit preference, flavor, and shape and for physicochemical measurements of soluble solids concentration (SSC), flesh firmness, and fruit weight. The sensory attribute that correlated most strongly with overall fruit preference was fruit flavor (r = 0.97). The whiteness of epidermal tissue (rind L value) and SSC correlated more highly with overall fruit preference (r = 0.54 and r = 0.52, respectively) than other physicochemical attributes, such as fruit firm- ness (r = -0.24) and fruit weight (r = -0.12). Epidermal L value correlated more strongly with panelists' ratings for fruit shape (r = 0.69) than with fruit flavor (r = 0.35), but SSC correlated more strongly with fruit flavor (r = 0.61) than with fruit shape (r = 0.30). Superior honey dew melon quality at harvest was associated with high SSC, white epidermal tissue, and round fruit shape.

scholarly journals In-row Distance in Triploid Miniwatermelon Cultivars Affects Yield and Quality in Diverse Environments in the Southeastern United States

2009 ◽  
Vol 19 (3) ◽  
pp. 538-545
Author(s):  
Richard L. Hassell ◽  
Jonathan R. Schultheis ◽  
Wilfred R. Jester ◽  
Stephen M. Olson ◽  
Gilbert A. Miller
Keyword(s):  
South Carolina ◽  
Citrullus Lanatus ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Row Spacing ◽  
Marketable Yield ◽  
Yield And Quality ◽  
Marketable Fruit ◽  
Eastern North Carolina ◽  
Location Interaction

The goals of these studies were to determine how miniwatermelon (Citrullus lanatus) cultivars differed and responded to plant in-row spacing in terms of percentage of marketable fruit and yields, and if plant spacing impacted internal fruit quality. Three genetically diverse triploid miniwatermelon cultivars (Mohican, Petite Perfection, and Xite) were selected. These cultivars were evaluated in field locations at northern Florida (Quincy), central South Carolina (Blackville), coastal South Carolina (Charleston), and eastern North Carolina (Kinston) at five within-row distances. Within-row distance included 9, 12, 15, 18, and 21 inches. All plots were15 ft long with row middles 9 ft apart. Fruit were categorized as marketable if they weighed between 3.1 and 9.0 lb per fruit. Within this range further categories were divided as follows: ≤3.0 lb (cull), 3.1 to 5.0 lb (small), 5.1 to 7.0 lb (average), 7.1 to 9.0 lb (large), and ≥9.1 lb (cull). There was a cultivar by location interaction, suggesting that the three cultivars responded differently at each of the four locations. ‘Petite Perfection’ was among the highest yielding at all locations except Quincy, where it was the lowest yielding cultivar. As with total yields, the percentage of marketable fruit was similar for some cultivars across locations. Cultivar Petite Perfection produced the highest percentage of marketable fruit at three of the four locations. The exception was the Quincy site where ‘Xite’ had the highest percentage of marketable fruit. Within-row plant distances and populations affected total marketable yield, both for fruit weight and number per plant, regardless of cultivar and location. As the plant population increased from eight plants per plot (21-inch in-row spacing) to 12 plants per plot (15-inch in-row spacing), total marketable miniwatermelon fruit yields increased in total fruit number as well as total weight. There was a cultivar by location interaction for the percentage of soluble solids and the rind thickness measurements, suggesting that some cultivars responded differently at each of the four locations. Quality effects were more apparent with ‘Mohican’ and ‘Xite’, as they were more responsive to location than ‘Petite Perfection’.

scholarly journals 2005 PERSONAL SIZE “MINI” TRIPLOID WATERMELON VARIETY TRIAL

HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 510A-510
Author(s):  
Thomas Horgan ◽  
Richard Snyder ◽  
Peter Hudson ◽  
Edgar Vinson ◽  
Joseph Kemble
Keyword(s):  
Total Yield ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Plant Spacing ◽  
Plastic Mulch ◽  
Variety Trial ◽  
Solids Concentration ◽  
Black Plastic ◽  
Triploid Watermelon ◽  
Soluble Solids Concentration

Ten “mini” or personal size seedless watermelons were evaluated at three locations: north and central Mississippi and in central Alabama. `Betsy', `Bobbie', `Demi-Sweet', `Extazy', `Mini Yellow', `Petite Treat', `Solitaire', `Valdoria', `Vanessa', and `Wonder' were the cultivars trialed. Seedlings were started, in a greenhouse, four weeks before planting. All locations used drip irrigation and black plastic mulch and were fertilized according to soil testing lab recommendations. A personal size diploid (seeded) variety, `Jenny', was used as the pollinator. One pollinator was planted, and interspaced evenly, for every three triploid plants. Four harvests were made at each location on 7-day intervals. Yields reported are based on 2,074 triploid plants per acre and 1,037 pollinizer plants per acre. Only the triploid yield reported. Plant spacing was 14 ft2 per plant. For total yield (lb/acre) the cultivars `Petite Treat' (27,210), `Valdoria' (25,700), and `Demi-Sweet' (26,400) were among the top producers at each location. `Mini Yellow' was a top producer at all locations averaging 22,480 lb/acre. For total yield (fruit/acre) the cultivars `Valdoria' (3,380), `Petite Treat' (3,470), `Bobbie' (3,470), `Betsy' (3,380), and `Vanessa' (2,740), were among the top producers at each location. For total yield (lb/fruit) `Betsy' (6.9), `Wonder' (6.7), and `Vanessa' (6.1) had the overall lowest individual fruit weights. `Demi-Sweet' had the highest individual fruit weight in central Alabama (10.0) and north Mississippi (8.8). One problem observed was that a number of melons among cultivars were above or below size class. Also determining melon ripeness was a challenge. Melon quality was good. The soluble solids concentration (sweetness) of all melons was excellent. `Demi-Sweet' had the highest incidence of hollowheart. `Wonder' and `Extazy' had no incidences of hollowheart at any location. Rind thickness had no significant differences, however in both locations measured `Mini Yellow' had the thinnest rind. Rind necrosis was not encountered.

scholarly journals Yield and Quality of Triploid Watermelon Cultivars and Experimental Hybrids Grown in Mississippi

2003 ◽  
Vol 13 (2) ◽  
pp. 375-380 ◽  
Author(s):  
Kent E. Cushman ◽  
Richard G. Snyder ◽  
David H. Nagel ◽  
Patrick D. Gerard
Keyword(s):  
Citrullus Lanatus ◽  
Commercial Production ◽  
Soluble Solids ◽  
Marketable Yield ◽  
Yield And Quality ◽  
Solids Concentration ◽  
Trial Basis ◽  
Triploid Watermelon ◽  
Average Size ◽  
Soluble Solids Concentration

Evaluations of 21 entries (commercial cultivars and breeders' experimental hybrids) of triploid watermelon (Citrullus lanatus) were conducted in northern and central Mississippi during 2000 and 2001. The purpose of this research was to identify high-yielding, medium-sized triploid cultivars with good horticultural characteristics and consumer qualities for commercial production in Mississippi. Most entries were similar to `Tri-X 313' and had red flesh, oval shape, and a mottle stripe rind pattern. SXW 5052, `Triple Crown,' `Crimson Trio,' `SeedWay 4502,' and `Millionaire' produced the highest total marketable yields; however, SXW 5052 is no longer available. `Crimson Trio' produced slightly smaller-sized melons compared to other entries and `SeedWay 4502' produced melons with relatively low soluble solids concentration. Based on total marketable yield, average size of melons, soluble solids concentration, and lack of undesirable characteristics such as hollowheart, black and colored seed, and rind necrosis, `Triple Crown,' `Millionaire,' `Cooperstown,' `Summer Sweet 5244,' and `Crimson Trio' can be recommended as mid- to late-maturing cultivars for commercial production in Mississippi. Based on early marketable yield, and using the same criteria listed above, `Tri-X 313' and `Tri-X Carousel' can be recommended as early-maturing cultivars for commercial production in Mississippi. `Tri-X 313' exhibited only one undesirable trait, producing a relatively high number of black and colored seeds. `Diamond' had high early and total yields, as well as high soluble solids concentration, but it should be recommended only on a trial basis to determine its potential susceptibility to hollowheart.

scholarly journals Carambola Quality after Ethylene and Cold Treatments and Storage

HortScience ◽  
1997 ◽  
Vol 32 (5) ◽  
pp. 897-899 ◽  
Author(s):  
W.R. Miller ◽  
R.E. McDonald
Keyword(s):  
Surface Area ◽  
Cold Treatment ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Averrhoa Carambola ◽  
Solids Concentration ◽  
And Storage ◽  
Green Stage ◽  
Soluble Solids Concentration

Carambolas (Averrhoa carambola L.) must be treated with an approved insect quarantine procedure such as cold treatment before shipment to certain markets. Condition and quality of mature-green (MG) and slightly yellow (SY) fruit were determined after they were: 1) treated with ethylene at 0.1 ml·L-1 for 48 hours (C2H4), 2) subjected to cold treatment (CT) at 1 °C for 15 days, and 3) held in storage at 5 °C for 7 days plus 3 days at 15 °C. Ethylene-treated fruit were softer and yellowness was enhanced compared with non-C2H4-treated fruit. MG fruit were firmer and lost more mass following CT and storage than SY fruit. C2H4 treatment increased the severity of peel scald, stem-end breakdown (SEB), and fin browning but had no effect on pitting. CT increased the severity of scald and pitting, and the severity of SEB, but did not affect fin browning. Peel scald, pitting, SEB, and fin browning were more severe in MG than in SY fruit at the final evaluation. C2H4-treated fruit had lower total soluble solids concentration, higher titratable acidity and pH, and a less preferred flavor and texture than control fruit. We conclude that carambola fruit should be selected at harvest at the slight-yellow stage (3% to 25% of surface area) instead of at the mature-green stage. Fruit to be cold-stored should not be C2H4 treated due to enhanced mold development and severity of SEB.

scholarly journals 242 Fruit Quality Parameters of Various Apple Scion/Rootstock Combinations

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 432F-433
Author(s):  
Usman Siswanto ◽  
Frank B. Matta
Keyword(s):  
Fruit Quality ◽  
Fruit Juice ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Diameter Ratio ◽  
Soluble Solids ◽  
Apple Rootstocks ◽  
Fruit Length ◽  
Solids Concentration ◽  
Soluble Solids Concentration

A study of spur-type apple scion cultivars on semi-dwarf and dwarf apple rootstocks was conducted to evaluate and identify suitable scion/stock combination for Mississippi. Fruit weight varied among scion/stock combinations. `Royal Gala' on MM111 and MM106 and `Ultra Gold' on MM106 yielded the heaviest fruit. `Jon-A-Red' on Mark produced the lightest fruit. Fruit length diameter ratio (L/D) was the highest for `Blushing Golden' on M7A and MM111, and `Ultra Gold' on MM111. The L/D ratio of `Royal Gala' was not affected by rootstock. Scion cultivars on M7A and M26 tended to have more red fruit than on the remaining rootstocks. `Ultra Gold' on M26 and `Braeburn' on Mark and MM111 had the firmest fruit. Overall, trees on M7A and Mark rootstock tended to produce firm fruit. Juice pH was significantly affected by scion-stock combination. In general, `Royal Gala', regardless of rootstock, had the highest juice pH, whereas `Ultra Mac' and `Jon-A-Red' produced the lowest pH. `Blushing Golden' on MM111 and `Royal Gala' on M26 had the highest soluble solids concentration (SSC). Soluble solids concentration of scion cultivars on MM106 did not differ.

scholarly journals BLOOM THINNING OF FUJI, ROYAL GALA, AND BRAEBURN APPLE WITH MONOCARBAMIDE DIHYDROGENSULFATE

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 591f-591 ◽  
Author(s):  
Stephen C. Myers ◽  
Steven McArtney ◽  
Stuart Tustin ◽  
Wendy Cashmore ◽  
Richard Mangin
Keyword(s):  
Fruit Set ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Linear Effect ◽  
Fruit Drop ◽  
Solids Concentration ◽  
Root Stock ◽  
Drying Conditions ◽  
Mature Apple ◽  
Soluble Solids Concentration

Foliar applications of monocarbamide dihydrogensulfate (D-88, Unocal Chemicals Division) at rates of 0, 2.5 ml/1, 3.75 ml/1 or 5.0 ml/1 were made to mature apple trees of “Fuji”, “Royal Gala” or “Braeburn” on MM106 root-stock. Treatments were applied dilute when spurs were at 95% full bloom. D-88 was applied at 5.0 ml/1 to “Fuji” at three different times during the day (0730, 1400 or 1810) with and without surfactant in an attempt to evaluate the effect of different atmospheric and drying conditions. Fruit set (number of fruit per 100 flower clusters) was determined after natural fruit drop. D-88 had no effect on fruit set of “Royal Gala” or “Braeburn”. There was a linear effect between D-88 rate and fruit set on “Fuji”, with the 5.0 ml/1 rate reducing set by 30%. D-88 affected the number of fruit at individual fruiting sites, most significantly the percentage of flower clusters setting 3 fruits decreasing with increasing rate. Timing and surfactant had no effect. Fruit finish, mean fruit weight, seed number and soluble solids concentration were measured at harvest.

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