Development of seedless and Mal Secco tolerant mutant lemons through budwood irradiation

Effect of mutagens on regeneration and growth of in vitro grown epicotyl segments of rough lemon seedlings (Citrus jambhiri Lush.)

“…In plants, the response to physical and chemical , 2231-5209 (Online) All Rights Reserved © Applied and Natural Science Foundation www.ansfoundation.org mutagens is species-specific and largely unknown for the majority of the species (Gilchrist and Haughn, 2005). Several workers have attempted for induction of mutation in citrus species using either physical and chemical mutagens for involving new citrus genotypes like seedlessness in sweet orange and grape fruit cultivars (Davis and Albligo, 1994) and salt tolerance in troyer citrange (Garcia -Agustin and Primo-Millo, 1995), development of seedless and Mal Secco tolerant mutant lemons (Gulsen et al, 2007), seedless and citrus canker tolerant mutant clones in sweet orange (Latado et al, 2006). In mutagenesis , mutagens viz., physical(gamma rays) and chemicals such as ethyl methane sulfonate (EMS) and methyl methane sulfonate (MMS) are most frequently used (Jain, 2005).…”

Characterization of drought-tolerant sugar beet mutants induced with gamma radiation using biochemical analysis and isozyme variations

“…Ionizing radiations such as gamma rays can generate many kinds of DNA mutations ranging from point mutation to chromosome aberration. Therefore they are frequently used in breeding programs to increase genetic variations in populations . The first step of radiation mutagenesis under tissue culture conditions determines the optimal radiation dose(s).…”

A Biomathematical Model forPhoma TracheiphilaCitrus Resistance Screening

“…Among the various threats which inflict a critical phytosanitary state in the citrus plantation, Mal Secco disease is the most serious problem in the Mediterranean and the Black Sea region (3). The causal tracheomycosis agent, Phoma tracheiphila, is very difficult to be eradicated from the infected areas.…”

“…The reaction of many citrus species and cultivars towards the toxin of the parasite and the radiation treatments was investigated to develop new approaches of selection of Citrus lemon resistant cultivars (3,8).…”