Influence of cold storage on growth, productivity and root reserves of ‘Kwanza’ raspberry

Oliveira, P.B.; Moreira, B. R. A.; Oliveira, Cristina M.

doi:10.17660/actahortic.2020.1277.28

Cited by 4 publications

(2 citation statements)

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“…Production using soilless culture and protected environments, such as plastic tunnels and greenhouses, is an increasing trend for all berry crops [1,2]. The soilless "long-cane" production of raspberry and blackberry originated decades ago in The Netherlands, the U.K., and Belgium but has since been adopted in other European countries as well as in Africa, Southeast Asia, North and South America, and Australia [3][4][5][6][7][8]. The term "longcane" is derived from how these crops are grown and trellised in soilless cultivation [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…The soilless "long-cane" production of raspberry and blackberry originated decades ago in The Netherlands, the U.K., and Belgium but has since been adopted in other European countries as well as in Africa, Southeast Asia, North and South America, and Australia [3][4][5][6][7][8]. The term "longcane" is derived from how these crops are grown and trellised in soilless cultivation [3][4][5]. Blackberry and raspberry have a perennial root system producing biennial stems called "canes"; in the first year, these canes grow vegetatively (and are called "primocanes"), and in the second year, after dormancy, these canes (now called "floricanes") produce flowers and fruit before senescing [8].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Forcing Temperature Effects on Plant Development for Containerized Blackberry Grown Using Long-Cane Techniques

Dickson,

Machesney,

Henderson

2023

Horticulturae

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Dormant containerized blackberry plants grown as long canes are forced into protected environments, such as plastic tunnels or greenhouses, to schedule harvesting for important market weeks. The time needed to produce a crop is mainly a function of temperature. In this study, the objectives were to quantify the effects of temperature on plant development rates for long-cane blackberry and develop simple models predicting the time from forcing dormant plants to first open flowers and ripe fruit as a function of average daily temperature (ADT). The crop time and ADT at the first-flower and -fruit stages were measured for the cultivars ‘Loch Ness’, ‘Osage’, ‘Ponca’, and ‘Prime-Ark® 45′ grown as long canes during a greenhouse and high-tunnel experiment, and the days to flowering and fruiting were converted to rates by calculating the reciprocal. Nonlinear models relating flowering and fruiting rates to ADT were developed for each cultivar using a combination of the experimental data and base (6 °C), optimum (25 °C), and maximum (35 °C) temperature parameters derived from a previous blackberry heat unit study. Model accuracy was evaluated by comparing the predicted to observed times to first flower and fruit per cultivar. Average daily temperature was shown to have a main influence on crop timing, as shown by a strongly positive and near 1:1 relationship between predicted and observed days to flowering/fruiting. However, there was significant variability depending on the cultivar and model accuracy within ±7 days, ranging from 50% (‘Prime-Ark® 45) to 90% (‘Loch Ness’) for the flower models and from 60% (‘Prime-Ark® 45) to 100% (‘Loch Ness’) for the fruit models. To the best of our knowledge, this study is the first to characterize the relationship between temperature and crop timing for soilless long-cane blackberry, and it provides a framework for modeling temperature effects on crop timing for these systems. The authors discuss further methods to improve model accuracy and precision for commercial use. These models can also be used for general training purposes to help educate growers on how temperature influences crop scheduling during long-cane blackberry production.

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