Agricultural Improvement

投稿

Photochromism refers to the phenomenon in which a single chemical species reversibly forms two isomers of different colors under the action of light without changing the molecular weight. Also, two isomers are molecules with different properties. Succeeded in creating a hexatriene-based photochromic compound that undergoes a cyclization reaction with 100% stereoselectivity and a compound with a ring-closing quantum yield of almost 1. In addition, in the biradical-generating photochromic compound HABI, which suppresses dissipation, we created an ultra-fast photocoloring and decoloring reaction system. Utilizing two-dimensional microphase separation due to photoreaction of liquid crystal polymers with azobenzene side chains, we succeeded in optically controlling the morphology and orientation of thin films. We created a light-driven polymer motor that converts light energy directly into mechanical energy using an elastomer film containing azobenzene. In addition, we succeeded in controlling the planar asymmetry by photoisomerization reaction, and controlling the magnetism and superconducting properties of metal nanoparticles and thin films. We will discover new systems of photochromic single crystals and fibers capable of photoreversible shape control. We present the mechanism of reversible deformation of diarylethene single crystals by light, the estimation of generated stress, and the possibility of light-driven actuators. In addition, we succeeded in optical control of water repellency and hydrophilicity of the surface of diarylethene single crystal, and optical control of metal deposition selectivity on the thin film surface. Furthermore, as one of the ultimate performances, we have achieved control of photocoloring/photobleaching with single-wavelength light using multiphoton absorption. Research area name: Investigation of photochromism and creation of mechanical functions. Research period: 2004-2007. Representative: Professor 'Masahiro IRIE' (Then Rikkyo University Faculty of Science Specially Appointed Professor) Currently Professor Emeritus, Kyushu UniversityHistory: 1988 Society of Polymer Science Award,1993 Photochemistry Society Award, 1995 Da Vinci Prize (French LVMH Foundation), 2005 Chemical Society of Japan Prize, 2007 Mukai Prize, 2007 Medal with Purple Ribbon, 2008 Theodor Foerster Prize (German Chemical Society), 2014 Porter Medal, 2017 Order of the Sacred Treasure, Light Drive Development of molecular diarylethene: cis-ethylene (C10H16O4: InChI: InChI = 1S/C10H16O4/c1-3-7-13-9(11)5-6-10(12)14-8-4-2/h5-6H, 3-4,7-8H2, 1-2H3/b6-5-, InChI key：DSTWFRCNXMNXTR-WAYWQWQTSA-N, SMILES： Compounds with a ring (aryl group) change from an open ring structure to a closed ring structure when exposed to ultraviolet light (UV). When visible light (Vis) is irradiated, it returns to its original state.

- 10月 09, 2022

On February 28, 2022, Mr. and Mrs. Suzuki, who are persimmon farmers living in Ishimaki, Toyohashi City, won the Minister of Agriculture, Forestry and Fisheries Award at the National Fruit Tree Technology and Management Contest. This competition honors advanced farmers who can serve as models for others in terms of fruit tree production technology and management. It seems that the couple, with their foresight, will provide support with a view to the future so that they can pass on the technology to the younger generation that will follow them. 【製品名（商品名）】早秋柿（とよはし柿）【種類】 Diospyros kaki Thunb. 【生産地】愛知県豊橋市（JAとよはし, JAあいち経済連）【名前の由来】 It seems to have been named after the Goku-Wase variety of persimmon, which matures early. 【主な特徴】 According to NARO, "Soshu persimmon'' is an early maturing sweet persimmon grown by crossing "Izu persimmon'' with "109-27 persimmon'' ("Okitsu No. 2 persimmon'' × "Okitsu No. 17 fruit tree''). The f...

生存の術: While various efforts are being made toward a low-carbon society that reduces CO2 emissions, which is one of the factors of global warming, and does not deplete resources, there is great expectation and interest in plants that absorb CO2. Plants use light energy to photosynthesize and convert CO2 into organic matter such as sugar. However, if you take a step into the idol world, there will be a tremendous competition for survival day and night (only strong and environmentally friendly ones will survive from the conflict that occurs to keep other creatures out of the way you try to survive for a long time.) Is unfolding. The plants, which seem to live quietly, devise well-thought-out ideas over the wisdom that has been cultivated for a long time in order to leave offspring. It is also essential for the survival of all living things, including humans, supports our breathing, and contributes to maintaining the composition of the atmosphere.

- 7月 20, 2022

As the current situation of Japanese Agriculture, labor shortage and aging are accelerating. As you can see from the decline in the self-sufficiency rate, the shortage of successors is a major issue. Working conditions with a small number of people working without holidays are also one of the reasons why it is difficult for young people to get into agriculture. I don’t think it makes sense if it isn’t reflected. We hope that the younger generation will not spur the creation of a system that allows them to enter the market with attractiveness and hope, and hope for a life-threatening discussion as soon as possible. Would you please show Japan, whose wage levels have been declining for a quarter of a century, a policy that makes people feel worth living while their nominal wages are rising, or hopes that they will give dreams to all the people? Is there no choice but to kill your born kids? Clearly visible in the near future. Agricultural products that supply the food that is essential t...

It seems that protecting the varieties of our beloved plants is behind the prohibition of self-propagation (collection) in principle. In addition, in 2018, the number of applications for variety registration in Japan was about 40% of that in China, and from the context of wanting to increase the competitiveness of Japanese agriculture globally in the future, breeder rights are protected by varieties registrants. There seems to be an aim to increase the number. This time, the only crops that are prohibited in principle are those for which "breeder’s rights" are recognized. For varieties for which breeders' rights are not recognized, self-seeding is still possible. In addition, if the variety is not recognized as a breeder's right, it can be cultivated as before and distributed and sold as an agricultural product, and it seems possible to distribute seeds and seedlings regardless of whether they are paid or free. It seems that it does not mean that farmers who have been producing native and fixed seeds have to switch to First Filial Generation Seed (the first generation of hybrids in which different fixed seeds are crossed) due to the modification of the seedling method. For crops that do not have breeder's rights, self-propagation (collection) is possible, so it is up to each producer to adopt them.

- 6月 01, 2022

Kojiki (Kamiyo, Jindai), Emperor Jinmu: From the first generation to the Emperor Suiko: Kojiki from the first generation to the 33rd generation, Japan's oldest scripture: 712), Nihonshoki (Japanese mythology: Nihonkaibyaku) ) To the latter half of the 7th century: A peach god that appears in Japanese mythology. "OHOKA MUZUMINO MIKOTO" Around the 10th (901 AD-1000 AD: "Honcho Japanese name" "Japanese mythology": apricot (Prunus armeniaca)) century, peach seeds were donated to the emperor from various countries. In the 17th (Education in the Edo period: " Biyo Kokugyo, Tobi Korimura Magazine, Kibi Confidential, Wake Silk, Bizen Kokubi Chugoku Nouchi Uchimonosansho (Okayama Prefecture) century, the number of fruit peaches (Prunus persica: Flowering peach trees) ) has increased and many varieties have been recorded. Momoyama Hills: “Fushimi Inari Taisha”, which was built in the 8th century, is famous. The undulations surrounded by the Uji and Katsura ...