publishing validated histories and descriptions of the many parent cultivars used by commercial producers throughout the Midwest. Emphasizing the Benefit of Published Cultivar Descriptions The participatory nature of chestnut genetic improvement
published descriptions from scientific journals, seed catalogs, and websites of seed companies. Assistant editors responsible for each crop were instructed to obtain as much information as possible about the cultivars available to North American growers. The
:343-357. https://doi.org/10.21273/HORTSCI.26.4.343 . 23. Wehner, T.C. 1999. Vegetable cultivar descriptions for North America, list 24. HortScience 34:763-806. https://doi.org/10.21273/HORTSCI.34.5.763 . 24. Wehner, T.C. 1999. Vegetable cultivar descriptions
Japanese cedar, Cryptomeria japonica (Thunb. ex L.f.) D. Don [Cupressaceae Bartling, formerly assigned to Taxodiaceae Warm.] is increasing in popularity as a landscape plant in the eastern United States. A taxonomic study of cultivars grown in the eastern United States was conducted. Forty-five cultivars were recognized. Each cultivar bears synonymy, a quantitative morphological description newly described from field data, herbarium vouchers, references to original literature and observational notes. A glossary of taxonomic terms relevant to Cryptomeria is presented. A taxonomic key is presented for segregation of cultivars that should assist professional plantsmen in identification of taxa cultivated in the eastern United States.
habits, extensive germplasm variation, and high offspring heterogeneity ( Huang et al., 2011 ; Zhou and Li, 2014 ). Through mutation breeding at the Jiangsu Academy of Forestry and Zhejiang Academy of Forestry, the cultivars Qiuyan No. 1 and Ziyan have
Individuals knowing of new cultivars to add to the list, or corrections to be made in the published lists are encouraged to contact TCW ( firstname.lastname@example.org ). The assistance of Shannon Woods (American Seed Trade Association), and Marie
Nodules associated with the main cortical vascular bundles in fruit of the `Gala' apple (Malus ×domestica Borkh.) strains `Royal' and `Regal' were observed in several growing seasons. The nodules were found in 68% (n = 586) of the fruits examined, with a mean of 2.5 nodules per fruit. The nodules were first detected in developing fruit 2 months after bloom and were normally 1-2 mm in diameter by commercial harvest maturity. The nodules, like the vascular bundles, were pale green. They were inconspicuous at first, but became conspicuous and unattractive and changed to brown or red as the fruit became overmature. Nodules in the fruit of the `Gala' × `Splendour' hybrid `8S 27-2' were dark brown or red at picking maturity, and occurred with high frequency. Nodules were also observed in `Splendour', but were small, pale green, and infrequent in this cultivar. Microscopic examination of the nodules revealed that they typically contained a central cavity surrounded by a lignified wall with small pigmented cells outside the wall adjacent to the cortex. Low-frequency irrigation cycle times generally promoted the development of nodules in both `Gala' strains but nitrogen treatments did not affect nodule frequency in `Royal Gala'. Mean fruit nodule frequency tended to be higher, overall, in `Regal Gala' (3.9) than in `Royal Gala' (1.4).