• Journal of agriculture & life science
• /
• v.45 no.2
• /
• pp.29-34
• /
• 2011

This study was carried out to investigate the flower yield and quality of Lilium Oriental Hybrids as affected by planting date. In cut flower production experiments, effect of planting date and bulb source was studied in rain shelter houses with 30% shading. Four planting dates compared were May 15, June 5, June 25, and July 15. Bulbs used for cut flower production were either imported or produced domestically. The greatest cut flower yield and quality were obtained from bulbs planted either on May 15 or June 25. Bulbs planted on July 15 produced cut flowers of very poor quality and yield, due to high temperatures during the planting time. Therefore, for planting in July, means other than 30% shading have to be adapted to lower temperature during early growth stage. Although plants from imported bulbs had better growth and cut flower yield as compared to domestic bulbs, there was no significant difference.

• Korean Journal of Breeding Science
• /
• v.43 no.3
• /
• pp.206-209
• /
• 2011

A new gerbera cultivar 'Noble Pink' was released by the National Institute of Horticultural & Herbal Science (NIHHS) in 2009. A cross was made between 'Himalaya' with white and semi-double and 'Vital' with pastel cream and single in 2006. After investigation of the characteristics for four years (from 2006 to 2009), it was selected specially for the use of cut flower. 'Noble Pink' is a vigorous cultivar with pastel pink flower color (RHS R48B), brilliant green disc floret and semi-double. The average flower diameter is 11.8 cm, large flower. And inner ray floret and disc diameter are 4.77 cm and 2.17 cm, respectively. It produces a large yield with continuous supply of cut flowers and has adequate peduncle height. We believe that 'Noble Pink' has a great potential for expanding cultivated area of domestic gerbera cultivars and increasing farmers-income.

• Korean journal of applied entomology
• /
• v.61 no.4
• /
• pp.539-548
• /
• 2022

In recent decades, the world has entered a new era in terms of the number and variety of biological invasions, due to economic progress and transportation efficiency. Biological invasion is becoming more likely as demand for foreign fresh foods and decorative goods grows. Alien species continue to infiltrate Korea in a variety of ways, and disturb on the insect fauna of Korea. The goal of plant quarantine is to decrease the economic impact of alien pests on the agriculture and forestry industries. In this study, we focused on insects found in imported cut flowers from 1996 to 2020 using pest information system. Overall, 147,160 cut flowers (159 items) were imported into Korea from 69 countries during this time period. Throughout this time, 467 species of insects were found in all imported cut flowers to Korea, total 13,757 detections. They were classified as provisional regulated pests in 273 species, quarantine managed pests in 78 species, and non-quarantine pests in 118 species. Thysanoptera and Hemiptera had the largest number of alien insect detections (more than 80% of the alien insects) among the nine orders. The outcomes of this study have highlighted the need for ongoing inspection activities targeted at preventing quarantine alien pests from entering or incursion in Korea.

• Korean Journal of Breeding Science
• /
• v.42 no.6
• /
• pp.703-706
• /
• 2010

A new gerbera cultivar 'Sunny Lemon' was released by the National Institute of Horticultural and Herbal Science (NIHHS) in 2009. A cross was made between 'Pavlov' and 'Patrick' with pink and semi-double in 2006. After investigation of the characteristics for four years (from 2006 to 2009), it was selected for the use of cut flower. 'Sunny Lemon' is a vigorous cultivar with yellow flower color (RHS Y9C), brown center and semi-double. The average flower diameter is 11.0 cm. And inner ray floret and disc diameter are 7.63 cm and 2.59 cm, respectively. Days to first blooming are 84.5, approximately 2 weeks earlier than the standard cultivar. It produces a large yield with continuous supply of cut flowers and has adequate peduncle height. We believe that 'Sunny Lemon' has a great potential for expanding cultivated area of domestic gerbera cultivars and increasing farmers' income.

• Research in Plant Disease
• /
• v.19 no.1
• /
• pp.36-44
• /
• 2013

Carnation is considered to be one of the top three cutting flowers in the world, which is a main crop with 21 billion annual volume of manufacture. The four carnation items such as cuttings, seed, plant and unrooted cuttings are imported and exported. Viruses can be easily transmitted during vegetative propagation of carnation. Carnation necrotic fleck virus (CNFV) and Carnation ringspot virus (CRSV) are designated as Korea plant quarantine viruses and inspected. This study was aimed to develop specific primer sets for easy and rapid detection of CNFV and CRSV. Two RT-PCR primer sets were efficiently amplified 288 and 447 bp fragments for CNFV and 503 549 bp fragments for CRSV. Furthermore, developed nested primer sets make possible to high sensitive detection and verification. CNFV nested PCR primer sets all produced band of 147 bp and CRSV nested PCR primer sets did bands of 395 and 347 bp. In addition, plasmid inserted 6 sequences in amplicon were used as a positive control to improve inspection confidence. The successful application of PCR module newly developed in this study will be highly useful for detect of CNFV and CRSV for quarantine inspections.