TY - JOUR AN - 014535517 AU - Kloczowski,Z. PY - 1967/01/01 TI - Investigations on methods of obtaining heterosis in the breeding of oil sunflower. Part II. An estimation of the combining ability of certain varieties and lines of oil sunflower in reciprocal crosses JO - Hodowla Roslin Aklimatyz. Nasien-nictwo VL - 11 SP - 235 EP - 57 UR - https://eurekamag.com/research/014/535/014535517.php ER -