Evaluation yield and genetically factors in different cultivars of gladiolus

Abstract

In order to suggest the best cultivars of gladiolus to grow in moderate regions of Iran, an experiment was carried out in a complete randomized block design in three replications with five cultivars of Gladiolus grandiflorus ('Oscar', 'Red Advance', 'White Prosperity', 'Rose Supreme' and 'Lemon Drop') at the ornamental plants research center in Mahallat city of Iran. In reproductive and yields traits, 'Red Advance' were the highest. The highest vegetative traits were observed in 'Oscar'. The highest spike length (84.6 cm), number of florets (18.00), vase life (9.33 days) and plant height (172.88 cm) were observed in 'Oscar'. The highest corm weight (51.16 mm), numbers of cormlets (54.66) were observed in 'Red Advance'. The results showed that the rate of propagation was high in 'Red Advance'. The highest heritability in traits were estimated as plant height (98.67%), leaf width (98.66%), leaf length (98.12%), number of florets (98.55%), length of spike (98.90%) and diameter of stem (98.84%). There was a positive and significant correlation between the yield of corm and cormlets with the number of cormlet (r = 0.99) and diameter of cormlet (r = 0.96) and diameter of cormlet with the number of cormlet (r = 0.96). 'Red Advance' cultivar may be recommended for cultivation as alternative to some oldest cultivars (like 'Oscar'), which showed potentiality for marketing both in domestic and foreign markets.

Morphological traits and genetic parameters of Hippeastrum hybridum

“…The number of inflorescence florets reduces with the decrease in the size of underground organs significantly. More floret production is caused by less intensive competition of plants over water, minerals, nutrients, and radiation (Mojiri and Arzani, 2003;Azimi, 2020a). Similar results have been reported by Padaganur et al (2005), Khalaj and Edrisi (2013) for tuberoses.…”

“…The length of flowering period is influenced by pre-and postharvest factors. The quality and length of this period depends on planting conditions and post-harvest handling conditions (Azimi, 2020a). A major trait of cut and pot flowers is flowering period or vase life.…”

“…Traits that are not influenced by the environmental factors show high heritability. The highest heritability in gladiolus were estimated as plant height, leaf width, leaf length, number of florets, length of spike and diameter of stem (Azimi, 2020a). Table 4.…”

“…Studies have been conducted on morphological attributes of native bulbous plants of Iran including daffodils (Chehrazi et al, 2007), irises (Azimi et al, 2012;, gladiolus (Azimi, 2020a;2020b;2020c;Azimi et al, 2020), cyclamen (Naderi et al, 2016, and Fritillaria (Momeni et al, 2013).…”

Heterosis and genetic diversity in the crossings of gladiolus cultivars Amsterdam and White Prosperity

“…The genus of Gladiolus contains over 276 species throughout the world, but they are mostly native to the western, southern, and eastern parts of Africa although 12 species have been originated from the Mediterranean regions (Rina & Hiroshi, 2016). In Iran it is one of the main bulbous cut flowers and also in the world which has an important role in exporting as cut flowers (Azimi, 2020b).…”