“…Most experiments studying the effects of ionizing radiation on pollen germination and tube growth were performed in breeding programs or classical genetic studies utilizing acute high doses of gamma irradiation on mature pollen of culture plants to induce haploidy by artificial parthenogenesis (Aleza et al, 2009; Blasco, Badenes, & Del Mar Naval, 2016; Bouvier, Zhang, & Lespinasse, 1993; Lecuyer, Zhang, Tellier, & Lespinasse, 1991; Peixe, Campos, Cavaleiro, Barroso, & Pais, 2000; Todorova, Ivanov, Nenova, & Encheva, 2004; Zhang & Lespinasse, 1991). Since Blakeslee et al, (1922) first reported that pollination with irradiated pollen induces in situ haploid plants of Jimson Weed, this has become a widely used technique which has been applied to produce parthenogenetic seeds of several crop plants, such as apple (Zhang & Lespinasse, 1991), citrus (Aleza et al, 2009), kiwifruit (Pandey, Przywara, & Sanders, 1999), loquat (Blasco et al, 2016), muskmelon (Cuny, Grotte, Dumas de Vaulx, & Rieu, 1993), pear (Bouvier et al, 1993), rose (Meynet, Barrade, Duclos, & Siadous, 1994), winter squash (Kurtar, 2009; Kurtar & Balkaya, 2010), pumpkin (Kurtar, 2009; Kurtar, Balkaya, Ozbakir, & Ofluoglu, 2009), sun flower (Todorova et al, 2004), sweet cherry (Höfer & Grafe, 2003), walnut (Sadat Hosseini Grouh, Vahdati, Lotfi, Hassani, & Biranvand, 2011) and watermelon (Sari, Abak, Pitrat, Rode, & Dumas de Vaulx, 1994).…”