Shokubutsu Kankyo Kogaku最新文献

ダリア(Dahlia variabilis)'ネッショウ'では舌状花での退色発生の原因となる低温感受性が異なる個体が混在する大丽花(Dahlia variabilis

Shokubutsu Kankyo Kogaku Pub Date : 2020-03-01 DOI: 10.2525/SHITA.32.29

Hiromasa Okada, Yasuhiro Tauchi, Yukino Karasawa, Tokuyu Kikumura, Yoshikuni Kitamura

引用次数: 0

Academic Salon 学术沙龙

Shokubutsu Kankyo Kogaku Pub Date : 2018-12-01 DOI: 10.2525/shita.30.215

H. Shimizu

引用次数: 0

Bio-electric Potential Measurement Techniques 生物电位测量技术

Shokubutsu Kankyo Kogaku Pub Date : 2018-12-01 DOI: 10.2525/SHITA.30.207

J. Hirama

引用次数: 0

Relationship between Snow Tolerance and Fructan Accumulation in Onion 洋葱耐雪性与果聚糖积累的关系

Shokubutsu Kankyo Kogaku Pub Date : 2018-12-01 DOI: 10.2525/SHITA.30.222

Masami Asai, H. Nishihata, T. Maeda, K. Murakami

{"title":"Relationship between Snow Tolerance and Fructan Accumulation in Onion","authors":"Masami Asai, H. Nishihata, T. Maeda, K. Murakami","doi":"10.2525/SHITA.30.222","DOIUrl":"https://doi.org/10.2525/SHITA.30.222","url":null,"abstract":"The relationship between snow tolerance and fructan accumulation before winter snow cover was investigated in fall-planted onions grown in a snowfall zone. In cultivation tests where the date of planting was changed, planting date was found to affect both growth before snow cover and fructan accumulation. Fructan content was very low and sugar content was low in early-planted onions. In contrast, with a conventional planting date, the degree of fructan polymerization was 9 and total sugars, including monosaccharides and disaccharides, were high. Overwintering ability was also high with the conventional planting date; specifically, although growth was limited, fructan accumulation and total sugar content were high. Thus, sugar and fructan accumulation before snow cover play an important role in providing energy for metabolism under snow, while snow tolerance improves with increased fructan content. Moreover, the survival rate was high with the conventional planting date, suggesting that fructan also provides energy for recovery after the snow cover has melted. When grown at 15 ℃ , a decrease in sugar accumulation was observed compared with growth at 5 ℃ . Then, after 9 weeks of growth at 0.5 ℃ in the dark, the onion plants initially grown at 15 ℃ died. In contrast, all plants initially grown at 5 ℃ survived, suggesting that the sugar content is related to survival under low-tem-perature dark conditions. A change from sugar to fructan was observed in dark condi-tions at 0.5 ℃ ; however, fructan accumulation did not occur at 5 ℃ , suggesting that fructan was synthesized at 0.5 ℃ despite the dark conditions.","PeriodicalId":315038,"journal":{"name":"Shokubutsu Kankyo Kogaku","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134354736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Chilling Treatments on Germination of Seed-Propagated Dry Wasabi Seeds 低温处理对种子繁殖干燥山葵种子萌发的影响

Shokubutsu Kankyo Kogaku Pub Date : 2018-12-01 DOI: 10.2525/SHITA.30.231

S. Hisamatsu, Fujio Baba, T. Nishijima, Naoya Hamabe, H. Katsuoka, Z. Inaba

引用次数: 0

A study on Intelligent Control of Fruit-storage Systems 水果存储系统的智能控制研究

Shokubutsu Kankyo Kogaku Pub Date : 2018-12-01 DOI: 10.2525/SHITA.30.195

T. Morimoto

引用次数: 0

Effects of Hydrogen Cyanamide Spraying on Floral Development and Blossom Characteristic Form in ‘Kawazu-zakura’ (Prunus lannesiana Wils.) Cherry Blossom Trees 喷施氰酰胺氢对川崎樱(Kawazu-zakura)花发育及开花特征形态的影响樱花树

Shokubutsu Kankyo Kogaku Pub Date : 2018-09-01 DOI: 10.2525/shita.30.156

Kentaro Matsuda, Y. Yamagiwa, Hiroshi Muto, Fujio Baba, Z. Inaba

{"title":"Effects of Hydrogen Cyanamide Spraying on Floral Development and Blossom Characteristic Form in ‘Kawazu-zakura’ (Prunus lannesiana Wils.) Cherry Blossom Trees","authors":"Kentaro Matsuda, Y. Yamagiwa, Hiroshi Muto, Fujio Baba, Z. Inaba","doi":"10.2525/shita.30.156","DOIUrl":"https://doi.org/10.2525/shita.30.156","url":null,"abstract":"We investigated the relationship of temperature with the flowering period of Prunus lannesiana Wils.'Kawazu-zakura'cherry blossom trees planted in the river embankment. We also studied the acceleration of flowering owing to the ef-fect of hydrogen cyanamide (H2CN2) spraying for improvement of ornamental value, pro-motion of tourism, and production of cut flowers. In 2011, 20, 50, and 100 % blooming was reported by February 16, February 21, and March 2, respectively. In 2012, 20, 50, and 100 % blooming was reported by February 23, February 26, and March 9, respec-tively. There was a difference of 5-7 days in the flowering date between 2011 and 2012. The cumulative temperature with the number of days between \"green tip\" and \"full bloom\" in the floral bud development process was within 234-259 degree days, and it re-mained fairly constant over all years evaluated. However, the average temperature from early November to mid-November, before the start of flower bud development, was 2.6-3.8 ℃ higher in 2012 than in 2011. It was suggested that the temperature after flower bud development initiation, in addition to the temperature during endodormancy termination, greatly affects the flowering period of'Kawazu-zakura'. After spraying of H2CN2, the branches were cut and transferred to a thermostatic chamber, where flower bud development started earlier by 35, 32, and 19 days at 5, 10, and 15 ℃, respectively, than in the untreated plot. However, there was no difference in flower bud developmental rate. Thus, flowering was accelerated by this treatment, mainly due to early development of flower buds. No effects of H2CN2 spraying on floral diameter and petal color were observed.","PeriodicalId":315038,"journal":{"name":"Shokubutsu Kankyo Kogaku","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127006285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Academic Salon 学术沙龙

Shokubutsu Kankyo Kogaku Pub Date : 2018-09-01 DOI: 10.2525/shita.30.149

Hiromichi Ito, Y. Hashimoto, Hirokazu Fukuda

引用次数: 0

Effects of CO2 Enrichment and 5-aminolevulinic Acid-based Fertilizer Application on Early Growth of Limonium sinuatum (L.) Mill. under Environmental Control CO2富集和5-氨基乙酰丙酸基肥施用对羊草早期生长的影响轧机。在环境管制下

Shokubutsu Kankyo Kogaku Pub Date : 2018-09-01 DOI: 10.2525/SHITA.30.165

S. Mori, Hiroki Chino

{"title":"Effects of CO2 Enrichment and 5-aminolevulinic Acid-based Fertilizer Application on Early Growth of Limonium sinuatum (L.) Mill. under Environmental Control","authors":"S. Mori, Hiroki Chino","doi":"10.2525/SHITA.30.165","DOIUrl":"https://doi.org/10.2525/SHITA.30.165","url":null,"abstract":"We investigated the effects of CO2 enrichment and application of 5-aminolevulinic acid (ALA)-based fertilizer during raising seedling under environmental control on the early growth of Limonium sinuatum (L.) Mill. ‘Souun’. Seedlings were grown in 7.5-cm polyethylene pots in two growth chambers with a day/night temperature regime of 20 °C/15 °C and a 12-h light/12-h dark photoperiod (PPFD 74 nmol m s). Four treatments were applied to the potted plants: general liquid fertilizer applied once per week (control group); ALA-based fertilizer and general liquid fertilizer (ALA group); CO2 concentration increased to 1200 nmol mol for 5 hours of the light period (CO2 group); and ALA-based fertilizer combined with CO2 enrichment (CO2+ALA group). After 5 weeks of these treatments, there was no significant difference in any of the measured parameters between the CO2 group and the control group. The leaf area, fresh weight of aerial parts, and fresh weight of underground parts were significantly higher in the ALA group than in the control group. The number of leaves, SPAD value, leaf area, fresh and dry weight of aerial parts, dry weight of underground parts, and percentage of underground part dry matter were significantly higher in the CO2+ALA group than in the control group. After 3 months of these treatments, there was no significant difference in cut flower yield and quality among the treatment groups. These findings clarified that application of ALAbased fertilizer under CO2 enrichment conditions promotes the early growth of L. sinuatum under weak light environmental control.","PeriodicalId":315038,"journal":{"name":"Shokubutsu Kankyo Kogaku","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122289778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nutrient Absorption and Environmental Control of Plant Roots in Hydroponics 水培法植物根系养分吸收与环境调控

Shokubutsu Kankyo Kogaku Pub Date : 2018-09-01 DOI: 10.2525/SHITA.30.143

S. Yoshida

引用次数: 1