scholarly journals 388 Measurement of Strawberry Fruit Firmness and Drip-loss

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 510F-511
Author(s):  
Patrick P. Moore
Keyword(s):  
Weather Conditions ◽  
Breeding Program ◽  
Drip Loss ◽  
Fruit Firmness ◽  
Strawberry Fruit ◽  
Processing Industry ◽  
Strawberry Breeding

Strawberry fruit of 16 clones was harvested from 45 plots in 1997. Fruit from 35 plots, 12 of the clones sampled in 1997 plus four additional clones, was harvested in 1998. Fruit was harvested on three to five dates in 1997 and three to seven dates in 1998 with 160 samples in 1997 and 165 samples in 1998. Fruit firmness was determined for five fruit from each plot at each harvest with a penetrometer and fruit from the same harvest was sliced, sugared, and frozen. Drip loss was determined later for the frozen, sliced samples. There were statistically significant correlations between firmness and drip-loss (r = -0.27, n = 160, P < 0.01 in 1997 and r = -0.44, n = 165, P < 0.001 in 1998); however, firmness did not adequately predict drip-loss. There was considerable variation in drip loss from harvest to harvest, which was associated with weather conditions or precipitation/irrigation. The drip loss in 1997 was not significantly correlated with the drip loss for the same plots in 1998 (r = -0.26, n = 24, ns); however there was a significant correlation between firmness in 1997 and 1998 (r = 0.52, n = 24, P < 0.05). These findings have implications for evaluation of fruit in a strawberry breeding program for a processing industry.

Evaluation of the Drip Loss of 30 Cultivars and 9 Advanced Selections from Agriculture and Agri-Food Canada National Strawberry Breeding Program

2005 ◽  
Vol 4 (2) ◽  
pp. 35-40
Author(s):  
Shahrokh Khanizadeh ◽  
Martin Gauthier ◽  
Djamila Rekika ◽  
Martine Deschenes
Keyword(s):  
Breeding Program ◽  
Drip Loss ◽  
Strawberry Breeding

scholarly journals Composition of Commercial Strawberry Cultivars and Advanced Selections as Affected by Season, Harvest, and Postharvest Storage

HortScience ◽  
2016 ◽  
Vol 51 (9) ◽  
pp. 1134-1143 ◽  
Author(s):  
Yanina Perez Cayo ◽  
Steven Sargent ◽  
Cecilia do Nascimento Nunes ◽  
Vance Whitaker
Keyword(s):  
Cold Storage ◽  
Weather Conditions ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Anthocyanin Content ◽  
University Of Florida ◽  
Phenolic Contents ◽  
Total Anthocyanins ◽  
The University ◽  
Strawberry Breeding

Strawberries are one of the most important food crops grown in Florida, with a harvested area of ≈10,000 acres. The University of Florida strawberry breeding program develops cultivars adapted to this region and its particular weather conditions, with a major aim of increasing overall quality. The objective of this study was to compare the fruit of advanced breeding selections to those of commercial cultivars, for compositional attributes. Seven different strawberry genotypes were compared at harvest and after 7 days at 4 °C across multiple harvest dates during two consecutive years. Compositional attributes were highly influenced by year, harvest date within a year, genotype, and storage. Overall, compared with other genotypes, selection FL 09-127 exhibited consistently higher soluble solids and total sugar (TS) contents at harvest and after cold storage. Higher ascorbic acid (AA) and phenolic contents at harvest were observed in selection FL 07-193. However, its anthocyanin content was among the lowest. In contrast, FL 10-47 exhibited relatively low AA content at harvest but consistently high total anthocyanins (TACs) and total phenolic (TP) contents after storage. Overall, results from this study provide valuable information to the breeding process by identifying new genotypes with improved compositional attributes combined with suitable quality characteristics after cold storage.

POWDERY MILDEW RESISTANCE IN STRAWBERRY PROGENIES

1961 ◽  
Vol 41 (2) ◽  
pp. 239-243 ◽  
Author(s):  
Hugh A. Daubeny
Keyword(s):  
Powdery Mildew ◽  
Powdery Mildew Resistance ◽  
Breeding Program ◽  
Mildew Resistance ◽  
Large Numbers ◽  
The Mean ◽  
Strawberry Breeding ◽  
Resistance Rating

The effect of various parents on the degree of powdery mildew resistance in strawberry progenies was studied. Puget Beauty parentage, compared with Siletz, Surecrop, Talisman, Magoon, or Stelemaster parentage, gave a highly significant increase in the mean resistance rating. British Sovereign parentage, compared with Northwest or Agassiz parentage, gave a significant increase in the mean resistance rating. Puget Beauty was the only parent to give relatively large numbers of seedlings immune or resistant to powdery mildew. Siletz was as resistant to the disease as Puget Beauty, but did not transmit this resistance to its progeny. Selections immune or resistant to powdery mildew will be used in the strawberry breeding program at Agassiz.

Potential mechanisms associated with strawberry fruit firmness increases mediated by elevated pCO2

2012 ◽  
Vol 53 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Yong Soo Hwang ◽  
Jeong Ho Min ◽  
Dae Young Kim ◽  
Jin Gook Kim ◽  
Donald J. Huber
Keyword(s):  
Elevated Pco2 ◽  
Fruit Firmness ◽  
Strawberry Fruit

scholarly journals Strawberries at the Crossroads: Management of Soilborne Diseases in California Without Methyl Bromide

2020 ◽  
Vol 110 (5) ◽  
pp. 956-968 ◽  
Author(s):  
Gerald J. Holmes ◽  
Seyed Mojtaba Mansouripour ◽  
Shashika S. Hewavitharana
Keyword(s):  
Methyl Bromide ◽  
Fruit Production ◽  
Limiting Factor ◽  
Strawberry Fruit ◽  
Breeding Programs ◽  
Soilborne Diseases ◽  
Strawberry Industry ◽  
Phase Out ◽  
Strawberry Breeding ◽  
The Impact

Strawberry production has historically been affected by soilborne diseases such as Verticillium wilt. This disease was a major limiting factor in strawberry production in California in the 1950s and was the main reason that preplant soil fumigation with methyl bromide (MB) was developed in the late 1950s. MB fumigation was so successful that over 90% of the commercial strawberry fruit production in California utilized this technique. However, MB was subsequently linked to ozone depletion, and its use was phased out in 2005. The California strawberry industry was awarded exemption to the full phase-out until 2016, when all MB use in strawberry fruit production was prohibited. MB use continues in strawberry nurseries under an exemption to prevent spread of nematodes and diseases on planting stock. This review examines the impact of the MB phase-out on the California strawberry industry and evaluates the outlook for the industry in the absence of one of the most effective tools for managing soilborne diseases. New soilborne diseases have emerged, and historically important soilborne diseases have reemerged. Registration of new fumigants has been difficult and replacement of MB with a new and effective alternative is unlikely in the foreseeable future. Thus, crop losses due to soilborne diseases are likely to increase. Host plant resistance to soilborne diseases has become a top priority for strawberry breeding programs, and cultivars are increasingly selected for their resistance to soilborne diseases. The intelligent integration of a variety of management tactics is necessary to sustain strawberry production in California.

STRAWBERRY BREEDING PROGRAM AT THE UNIVERSITY OF ANCONA

2002 ◽  
pp. 143-146
Author(s):  
B. Mezzetti ◽  
F. Capocasa ◽  
D. Lucarini ◽  
G. Murri ◽  
F. Senzacqua ◽  
...  
Keyword(s):  
Breeding Program ◽  
The University ◽  
Strawberry Breeding

scholarly journals Firmness and Aroma Composition of Strawberries following Short-term High Carbon Dioxide Treatments

HortScience ◽  
1995 ◽  
Vol 30 (2) ◽  
pp. 303-305 ◽  
Author(s):  
Mette Larsen ◽  
Christopher B. Watkins
Keyword(s):  
Carbon Dioxide ◽  
Cold Storage ◽  
Fruit Firmness ◽  
Strawberry Fruit ◽  
High Carbon ◽  
Short Term ◽  
Ethyl Hexanoate ◽  
Ethyl Butanoate ◽  
Flavor Development ◽  
High Carbon Dioxide

Firmness and aroma composition of strawberry fruit (Fragaria ×ananassa Duch. cv. Pajaro) stored in air or treated with 20% CO2 for up to 12 days at 0C were analyzed upon removal from storage. Fruit firmness increased after 2 days in CO2, while the composition of aroma compounds in the fruit was unaffected at this time. Ethanol and ethyl hexanoate accumulated after 3 days during high CO2 treatment, but these compounds usually decreased during subsequent cold storage in air. Ethyl butanoate and ethyl acetate also accumulated but continued to increase after 6 and 9 days of CO2 storage, respectively. This study suggests that treatment of strawberry fruit with CO2 after harvest, followed by air storage at 0C, can maintain firmness while minimizing off-flavor development.

Sign in / Sign up

Export Citation Format

Share Document