Housui pear is a cultivar that was bred before the cultivar registration system was implemented under the Seed and Seedling Law of Japan. It is registered as an agricultural and forestry certified variety. According to NARO, analysis of pericarp color, self-incompatibility gene, 61 SSR markers, and chloroplast DNA regarding crossing combinations before and after crossing of the main Japanese pear cultivar “Housui pear” whose crossing parents are unknown, seed It is determined that the parent is “Kosui pear” and the pollen parent is “Hiratsuka No. 1 pear”. Housui pears, which have been bred for about half a century, now account for about 1/4 of Japanese pear production. It seems to be the main variety. In addition, it seems to be frequently used as a breeding stock because of its excellent quality and cultivability. However, the initially announced mating combination of “Hosui pear” (“Hiratsuka No. 7 (ri-14) pear” × “Yakumo pear”) has been questioned, and the results of investigations on skin color and self-incompatibility and recent DNA analysis, the parent breed seems to have been unknown.
A highly sustainable agricultural production method is a production method that maintains and increases the productivity of farmland into the future while ensuring the quantity and quality of products. , and “Chemical pesticide reduction technology”. Agricultural products direct sales store, JA Fukushima Sakurakoriyama district pear sorting field direct sales store (Akogashima, Atami Town, Kooriyama City): Freshly picked pears sorted by optical sensors are “sweet” and “fresh and juicy” minutes. As a result of the introduction of the optical sensor type fruit sorting system, it is said that it has become possible to accurately determine the sugar content and the presence or absence of internal pulp damage.
Koriyama City seems to be promoting agricultural production that is in harmony with the environment. For farmers working on special cultivation and organic cultivation, there is a support system for Fukushima Prefecture’s certification system and efforts. Organic farming is based on the principle of not using chemically synthesized fertilizers and pesticides, and not using genetic modification technology. It is a method of agricultural production that minimizes the burden on the environment derived from agricultural production. Agriculture done with. According to the Japanese Agricultural Standards (Organic JAS Standards) for organic farming, those certified by a registered organization are generally called organic agricultural products.