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http://dx.doi.org/10.7783/KJMCS.2020.28.2.136

Effects of Planting Density and Cutting Height on Production of Leaves for Processing Raw Materials in Goji Berry  

Paik, Seung Woo (Goji berry research institute, CNARES)
Lee, Jeong (Research and Development Bureau, CNARES)
Yun, Tug Sang (Research and Development Bureau, CNARES)
Park, Young Chun (Goji berry research institute, CNARES)
Lee, Bo Hee (Goji berry research institute, CNARES)
Son, Seung Wan (Goji berry research institute, CNARES)
Ju, Jung Il (Goji berry research institute, CNARES)
Publication Information
Korean Journal of Medicinal Crop Science / v.28, no.2, 2020 , pp. 136-141 More about this Journal
Abstract
Background: The leaves of the goji berry (Lycium chinense Mill.) are used as raw materials in processing and by replace fruits to some extent. The reason is that the leaves are cheaper, however, betaine content is higher than in the fruits. These experiments were conducted to determine the planting density and cutting height for producing a large number of leaves. Methods and Results: The cultivar 'Myeongan' with many branches was used. When the shoot height reached 50 cm - 70 cm, harvesting was possible four times a year. The time to next harvest was approximately 38 days after regeneration of new shoots. Leaf quantity was in the order of 1st > 2nd > 4th > 3rd harvest. Insect damage occurred during the third harvest in late July and early August, therefore, eco-friendly control was necessary. The total yield was higher at the planting density 60 cm × 30 cm than that of 60 cm × 20 cm or 60 cm × 40 cm. The yield at cutting for shoot height of 60 cm was increased by 6.3 percent compared to that of 50 cm, At the cutting height of 70 cm, harvest was difficult owing to hardening of stems and thorns. Betaine content, an indicator component of goji berry, was not significantly different according to planting densities and cutting height. Conclusions: The ideal cutting period to produce leaves of goji berry for processing is when the shoots grow to approximately 60 cm, and the leaves can be harvested 4 times a year. The dried-leaf yield was highest at the planting density of 60 cm × 30 cm.
Keywords
Lycium chinenese; Cutting Height; Goji Berry; Leaf Production; Planting Density;
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Times Cited By KSCI : 4  (Citation Analysis)
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