著者

Akiko Matsunaga Hidekazu Sasaki

出版者

The Japanese Society for Horticultural Science

雑誌

The Horticulture Journal (ISSN:21890102)

巻号頁・発行日

pp.QH-024, (Released:2023-05-31)

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Garland chrysanthemum is conventionally ratooned and harvested by selective hand picking. This manually intensive mode of harvesting may be improved by adopting mechanized harvesting practices. In view of incorporating machine harvesting into garland chrysanthemum crops, this study evaluated the effects of plant and cutting height on ratoon crop regrowth. Garland chrysanthemums were horizontally harvested using six combinations of three plant height levels at harvest (20 cm, 30 cm, and 40 cm) and three cutting height levels (5 cm, 10 cm, and 15 cm) over three repeated harvests. Plant height at harvest as well as the cutting height affected the total ratooning yield and regrowth process. If plant heights at harvest were low (20 cm) or cutting height relative to plant height at harvest was excessively high, yields decreased. Higher plant heights at harvest and lower cutting heights resulted in longer regrowth periods. Evaluation of branch structures revealed that low cutting heights decreased the number of branches and nodes remaining for regrowth. If the plant height at harvest was low (20 cm), node numbers tended to decrease. Excessively high cutting heights relative to plant height at harvest potentially results in the harvest of immature leaves and stems. We determined that harvesting at 30 cm plant height with 10 cm cutting height was suitable for ratooning, and resulted in high yields. This combination resulted in a sufficient number of first lateral branches and nodes on the plants, thus enabled the harvest of fully grown leaves.

著者

Asako Kaneoka Rumi Ueha Miki Nagatomo Akiko Matsunaga Shigeko Umezaki Haruhi Inokuchi Toru Ogata

出版者

The Japanese Association of Rehabilitation Medicine

雑誌

Progress in Rehabilitation Medicine (ISSN:24321354)

巻号頁・発行日

vol.7, pp.20220064, 2022 (Released:2022-12-23)

参考文献数

27

被引用文献数

1

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Background: To prevent aspiration, patients with irreversible dysphagia may undergo surgeries that separate the esophagus and trachea. Such interventions result in loss of vocal function and require alternative communication methods. We report a patient with amyotrophic lateral sclerosis (ALS) who used esophageal speech after receiving a central-part laryngectomy (CPL) to prevent aspiration.Case: A 64-year-old woman with ALS was admitted to our hospital. The patient maintained good cognitive and oral function and presented with mild dysarthria and dysphagia. Faced with rapidly worsening respiratory distress, saliva aspiration, and excessive sputum, she underwent a tracheostomy on the premise of invasive ventilation. Subsequently, the patient began using a voice-generating application for communication. Given the patient’s sincere hope to prevent aspiration and aspiration pneumonia, achieve safe oral intake, and decrease caregiver burden for frequent suctioning, the patient underwent a CPL. Following surgery, belching was observed during meals, and the patient could phonate when she belched. This finding led to four speech therapy sessions to practice esophageal speech, allowing the patient to use the pseudo-speech technique for short conversations. Removal of the entire cricoid cartilage in the CPL decreases the upper esophageal sphincter (UES) pressure, thereby allowing air to easily pass through the UES. Therefore, the patient could use the air as a sound source for esophageal speech without extensive training.Discussion: Esophageal speech may be an alternative to oral communication in patients undergoing CPL. Further research is warranted to generalize these findings to patients undergoing CPL.