Propagation of Mango Seedlings of the Cultivar “Tommy” by Grafts Irradiated

Abstract

Due to difficulties of vegetative propagating of any pants, many tests were performed with ionizing radiation aiming the modification of the characteristics of the plants for obtaining of the improved genotypes and of smaller size. Rootstock “Espada” cultivar, were used to obtain mango seedlings of “Tommy” cultivar. The cuttings were irradiated with different doses of gamma radiation: 0 (control), 2.5, 5.0, 7.5 and 10.0 Gy, in a source of Cobalt-60 type Gammacell-220, installed in the Center for Nuclear Energy in Agriculture, CENA-USP. After irradiation, was performed the grafting type cleft graft. Was made the first evaluation of height of the plants from the budding grafting after 24 months. Data were subjected by statistic program (SAS) and the means were compared by Tukey test (p <0.05). From the results obtained can be concluded that the doses of 2.5 Gy stimulated growth of the plants and the lethal dose was 10.0 Gy because don’t have development of plants.

Standardization of suitable Gamma irradiation doses 60 Co for mutagenesis in strawberry (Fragaria × annanasa Duch) cv. Chandler

“…The correlation between the increase in plant height and the utilization of low levels of gamma irradiation may be attributed to its ability to induce cell division and enhance essential processes associated with nucleic acid synthesis (Arthur, 2021). In a previous investigation conducted by Kovacs and Keresztes (2022), it was observed that there was a drop in the average height of plants as the irradiation dose was raised.…”

“…Gamma irradiation serves as a widely utilized physical mutagen and proves highly e cient in introducing genetic variations in several fruits, including Strawberry (El Oualkadi et al 2019), Guava (Singh S et al 2018), citrus (Pérez-Jiménez et al 2020), Mango (Arthur et al 2021), Grape (Surakshitha et al 2017), Papaya (Chaudhari et al 2022), Pear (Predieri et al 2000), and Kiwifruit (Yook et al 2009). Two factors in uence the impact of gamma rays on plant growth characters.…”

Effect of Gamma Rays Irradiation to Cipedak Avocado Genetic Diversity

“…Induced mutation by Gamma ray irradiation to improve plant characters were reported in many plant species i.e. wheat (Di Pane et al, 2018;Dwinanda et al, 2020), rice (Abdelnour-Esquivel et al, 2020), mango (Arthur, 2021) and avocado (Elmageid & Al-Kfrawey, 2018). Testing of plant genetic diversity could be done using morphological markers such as leaf macro-morphology, by observing its phenotypic appearance (Herison et al, 2018;Tahir et al, 2019;Ihsan & Santoso, 2020).…”