Phenological and pomological properties of promising walnut (Juglans regia L.) genotype with cluster fruiting from selected native population in Oltenia, Romania

Agro-morphological traits assessment of Tunisian male date palms (Phœnix dactylifera L.) for preservation and sustainable utilization of local germplasm

“…Thus, this floral characterization has recorded a tendency of precocity at the flowering onset, mid-season opening phenotype and a prolonged emergence-opening duration. Such phenotypic variation of flowering traits has also been reported in the work of Cosmulescu and Ionescu (2021) for native population of walnut genotypes in Oltenia, Romania.…”

‘Helete Güneşi’, a New Walnut Cultivar with Late Leafing, Early Harvest Date, and Superior Nut Traits

“…Pomological analysis helps determine fruit quality and has been widely used in many breeding studies to identify fruit cultivars with superior traits. The most important traits in a high-quality walnut cultivar are nut weight, kernel weight, kernel percentage, kernel color, kernel fill, and ease of removal of kernel halves [12,16,23,28,33,34].…”

“…Nut weight is not the sole determiner of walnut quality since kernel weight is also a crucial criterion. In the available literature, there are various reports on kernel weight in different walnut genotypes, ranging from 3.62 to 27.00 g [17,[33][34][35][36][37][38]. In addition, it is reported that a high-quality cultivar should have a kernel percentage of over 50% [39].…”

Morphological to Molecular Markers: Plant Genetic Diversity Studies in Walnut (Juglans regia L.)—A Review

“…Furthermore, high heritability is found between leafing date, heterodichogamy, and inflorescence blooming in walnut (Marrano et al, 2019;Eskandari et al, 2005). reported bloom period between 10 th -16 th April to 13 th -16 th May, Vahdati et al (2015) (29 th March to 6 th April), Rezae et al, (2018) (19 th April to 8 th May), Cicek et al ( 2020) 23 rd April to 10 th May, Cosmulescu and Botu, (2012) (20 th April to 10 th May), Cosmulescu and Ionescu, (2021) (2 nd fortnight of April), Ipek et al (2018) (24 th April to 7 th May), Simsek, 2010 (7 th to 18 th April). Bukucu et al (2020) reported the variation in first and last female blooming dates 104.96 to 117.51 Julian days, first and last male blooming dates 102.05 to 109.03 Julian days, the female flowering period from 4 to 20 days and male flowering 2 to 15 days.…”

“…The walnut plants are heterodichogamous in nature and genetic protandry is most common (Germain, 1997;Ipek et al, 2018;Lotfi et al, 2019) but this may be affected by ecological conditions (Sen, 1998). The mainly protandrous nature of walnut has been delineated by (Akca and Ozongun 2004;Khadivi-Khub 2014;Vahdati et al 2015;Ghanbari et al 2018;Beyhan Koyuncu et al 2005;Turkey and Ozatar 2007;Simsek and Osmanoglu 2010;Keles et al 2014;Akca et al 2015;Simsek et al 2017;Kilicoglu and Akca 2018;Bukucu et al 2020Cerovic et al 2010Cosmulescu and Botu 2012;Tsampas and Botu, 2013;Jacimovic et al 2020;Ionescu 2021;Shah et al, 2021). Whereas, Akhiani et al (2017) reported homogamous nature and Tsampas and Botu, (2013) found higher percentage of protogynous nature in walnut genotypes.…”