Transcript of "Tocco tomato poster as submitted to nacaa in 2012"
Effects of Moderate Shipping on Sales Quality of Selected Heirloom Tomato Varieties Phillip L. Tocco Extension Educator, Michigan State University Extension-Jackson County et al.(2005). Ferriera outlines five classifications that include damage from preharvest and at harvest sources Abstract that donot specifically apply to the scope of this study. There is continuing interest in sales of heirloom tomato For the purposes of this study, the three classes that varieties at farmers markets. As growers are increasingly will be utilized will be (1) without physical damage; (2) traveling greater distances to these markets, assessment light external surface physical damage; (3) serious of relative shipping characteristics may be important to external physical damage. variety selection for the growers. The PI assessed the Assessments of all tomatoes were made both Black from Tula Carbon relative handling of 10 heirloom tomato varieties. Each before and after treatment application. Each variety was placed in a single layer in cardboard tomato replication’s pre-assessment was subtracted from the boxes then transported 200 miles over a multiple variety total post-assessment to arrive at a shipping score for of road surfaces. After treatments were applied and each replication. holding both the treatment and control overnight, each Data collected was subjected to a factorial ANOVA to tomato was assessed as to its physical damage. Significant determine variance of cultivar and transport effects. postharvest losses were variety dependent, despite there being no effect on the varieties due to the treatment. Varieties with the least postharvest losses included Jaune Rutgers Goliath Chocolate Stripe Results & Discussion Flamme`, Stupice, and Chocolate Stripe. Those with the most postharvest losses were Anna Russian, Purple Analysis at the 10% significance level showed Calabash and Cherokee Purple. The findings suggest significant differences among varieties whether they certain heirloom varieties may be better suited for farmers stayed at the packhouse (p=0.068) or traveled the 200 market sales over others. miles (p=0.084) but no difference between treatments (p=0.11). Jaune Flamme` Purple Calabash Stupice The mean score and mean separations for each Introduction variety are listed in the table. These means represent the mean of varieties irrespective of treatment. It must Currently, no information exists examining the relative be remembered that both the storability and shippingdifferences in shipping capacity of various heirloom cultivars. capabilities are represented in these separations. FromThis information is a key first step to selecting heirloom a statistical standpoint, this muddies the water a bit.varieties to plant and sell at farmer’s markets. From the standpoint of variety selection, both factors Sargent et al. (1992) speaks to the fact that cultivar is are critical considerations, thus why they are beingone of several factors that affect incidence and severity of presented.postharvest damages. Therefore, all other things being Anna Russian Cherokee Purpleequal, different cultivars should exhibit differing levels ofpostharvest injury when subjected to similar conditions. Acknowledgements Variety Mean Score Mean Separation The author wishes to thank Ray Miller of Miller Big Methods Stupice 0.83 A Red Orchards for supplying tomatoes. This study was made possible through funding from GREEEN and Ten varieties of heirloom tomatoes grown in Romeo, Chocolate Stripe 0.83 A administrative support from the Food System EconomicMichigan were used for this study. The varieties represented Jaune Flamme 0.83 A Partnership (FSEP)are listed and pictured at right. Tomatoes deemed marketableafter harvest were used for the postharvest transport study. Rutgers 1 ASix replications of ten tomatoes for each variety were placedin cardboard boxes in a single layer calyx (stem) end down. Goliath 1.5 A Literature CitedThree replications remained on farm as a control group. Carbon 1.67 A Ferreira, M.D., A.T.O. Franco, R.F. Kasper, A.C.O. Ferraz,Three replications were stacked in the bed of a pickup truck S.L. Honorio, M. Tavares, Post-harvest quality of fresh-such that the bottoms of the boxes did not touch tomatoes Black from Tula 2 AB marketed tomatoes as a function of harvest periods.underneath them. The treatment group was transported by Anna Russian 2 AB Scientia Agricola (Piracicaba, Braz.), v.62,n.5, p. 446-451,pickup truck 200.9 miles on highway roads (141 miles) as well Sept./Oct. 2005as surface streets (56 miles) and dirt roads (3 miles). Both Purple Calabash 2.3 ABgroups were kept in unrefrigerated conditions and held Cherokee Purple 3.5 B Sargent, SA, JK Brecht, JJ Zoellner, Sensitivity ofovernight prior to physical damage assessment. tomatoes at mature-green and breaker ripeness stages Each tomato was assessed as to its physical damage based to internal bruising, Journal of the American Society foron damage classifications as utilized in Ferriera Horticultural Science, v. 117, p. 119-123, 1992