Fagopyrum

Effect of Nitrogen Topdressing on Seed Yield and Flour Protein Content in Semidwarf Common Buckwheat

Shinya Kasajima — 2024-06-03

This study evaluated the effects of nitrogen topdressing on the semidwarf common buckwheat (line ‘18-601’), focusing on growth, seed yield, and flour protein content. We conducted a field experiment and applied four nitrogen topdressing treatments at different growth stages: basal fertilization alone (2-0-0), basal fertilization plus nitrogen at flower bud appearance (2-2-0), basal fertilization plus nitrogen at full flowering (2-0-2), and basal fertilization plus nitrogen at both stages (2-2-2), using a randomized complete block design, with each plot measuring 1.2 × 2.5 m. Basal dressing was applied at 2, 8, and 4.7 g m-2 N, P2O5, and K2O, respectively. Nitrogen topdressing significantly increased chlorophyll content. The branch number, seed yield, number of seeds per square meter, and flour protein content tended to increase with nitrogen topdressing. The highest seed yield and protein content were observed in the 2-0-2 treatment, suggesting that nitrogen application at full flowering optimizes the yield and nutritional quality of semidwarf buckwheat. These findings highlight the importance of timing in nitrogen topdressing to enhance the agronomic and nutritional value of semidwarf common buckwheat.

Buckwheat at Slovenians in Hungary

Marija Kozar – Mukič — 2024-06-03

Two types of buckwheat were grown in Porabje: grey buckwheat (törsko dino) for human consumption and feeding honey bees, and the green buckwheat, Tartary buckwheat (»wild buckwheat«) for animal feed. Buckwheat was sown at the beginning of July in a rye stubble and harvested at the end of September. History of growing buckwheat, nutritional habits and dishes of Slovenians in Porabje and other parts of Hungary are presented.

The Origin of Cultivated Buckwheat in Mankang District of the Sanjiang Area of Eastern Tibet and its Diffusion to India and the Himalayan Hills

Ohmi Ohnishi — 2024-08-28

Natural populations of the wild ancestor of cultivated common buckwheat were searched and collected, starting from its discovery in1990 and finishing the collections in 2005. Among the collections, the samples Zhuka, Xihe from Mankang district of Tibet are most closely related to cultivated common buckwheat. On the other hand, cultivated populations of common buckwheat in Zhouba, Zhubalong both from Mankang district are most closely related with the wild ancestor of common buckwheat. This leads to the hypothesis on the origin of cultivated buckwheat in Mankang district in the Sanjiang area. The diffusion rout from the original birthplace to India and the Himalayan hills is proposed. Several characteristics of Indian and Himalayan common buckwheat are discussed. A main conclusion of the discussion is that the European buckwheat is not of Indian origin nor of the Himalayan origin. It probably came from the northern China through the Silk Road.

Ohmi Ohnishi, obituary

Yasuo Yasui — 2024-06-03