Agropyron × triticum 由來 多年生 小麥 agrotricum의 主要特性과 遺傳

Characteristics and inheritance of perennial wheat agrotricum derived from agropyron × triticum

Major agronomic characteristics of the progenies of the crosses between Agrotricum and Triticum cultivars and their perennial plant segregations were studied. Crossability of Agrotricum and Triticum was depending upon the crossed Triticum parents diversed from 18% to 44%. Perennial plants were segregated with 20% in F₁ and 12% in F₂ generation of Agrotricum × Olmil. Spikes per plant and grains per spike were less than those of Agrotricum. From the ratoon after first grain harvest, second harvest could be done. Spike length and yield components in second harvest were shorter and less than first ones, but little degree of decrease in grain weight and grains per spike were observed. The grain yield of promising perennial hybrid plant H26, was 40% of first harvest in the second.