ThexTriticosecale Wittmack ‘Shinjoseong’ variety was developed for use as a whole-crop silage obtained from a cross between CTSS93Y00058S-5Y-0Y-0B with early heading, lodging, and resistance to barley yellow mosaic virus and Suwon24 with winter-hardy and lodging-resistance traits by the National Institute of Crop Science (Wanju, Korea) in 2019. Shinjoseong has medium-sized green leaves, slightly short-length spikes with a light-yellow color, and slightly large seeds with a light yellow-brown color. Compared to the comparable cultivar, Shinyoung, Shinjoseong had a heading date of three days earlier (April 22^nd, nationwide), stronger cold and lodging resistances, and the same level of disease resistance. Its average dry matter yield was 17.18 t/ha, 5% higher than that of the comparable cultivar. The crude protein, acid and neutral detergent fiber, and total digestible nutrient contents of Shinjoseong were 6.5%, 34.9%, 58.8%, and 61.3%, respectively, slightly higher than those of the comparable cultivar. However, the silage grade of Shinjoseong was 2, the same as that of the comparable variety. The grain yield of Shinjoseong was 7.36 t/ha, 13% higher than that of Shinyoung (Grant No. 9757).

Wheat, in conjunction with rice and maize, constitutes one of the three most significant staple crops worldwide, sustaining over 40% of the global population. In Korea, the annual per capita wheat consumption exceeds 30 kg, totaling approximately 4 million tons nationwide. However, more than 95% of this demand is met through imports, resulting in a meager self-sufficiency rate of approximately 0.7%, raising concerns regarding supply stability and price fluctuations. Enhancing wheat self-sufficiency in Korea requires addressing yield reductions caused by abiotic stressors, including elevated temperatures, drought, cold damage and pre-harvest sprouting induced by climate change, as well as biotic stressors such as Fusarium head blight. The development of high-quality wheat varieties with superior processing characteristics that satisfy consumer demands is crucial. This study provides critical insights for future research on the development of novel wheat cultivars in Korea. It reviews the current state of wheat cultivation and production, environmental and biological factors affecting growth, compositional elements influencing quality, domestic cultivars developed through conventional crossbreeding currently in commercial distribution, and contemporary breeding trends, with particular emphasis on novel breeding technologies, such as biotechnology.