The Keirauk variety PHANTOM is a robust plant of medium density with strong bushiness and foliage coverage of about 25%. The plant height is approximately 62.4 cm, and the leaves are linearly-hemicylindrical, measuring 26 to 28 cm in length. They are light green in color, transitioning to dark green, and possess intense pubescence without a waxy coating.
PHANTOM inflorescences are light green, erect panicles of medium looseness. The internal product characteristics include protein content ranging from 11.8–12.1% and fiber content of 17.8–20.3%. Dry matter constitutes about 28.4 c/ha.
Green mass yield over three years exceeds the standard average – 44.7 c/ha, which is 6.3 c/ha above the norm. These indicators make PHANTOM an attractive choice for feeding animals due to its high nutritional potential and resistance to various climatic conditions.