Authors: S. Mishra, M. Tarafdar, R. K. Singh
Department of Horticulture, Faculty of Agriculture, Sam Higginbottom University of Agriculture,
Technology and Sciences, Allahabad, India E-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
Abstract. The aim of this research was conducted to improve fruit set using different types of treatments and to find out the best treatment on the basis of number of fruits and pomological traits. For the research, ten years old 12 Lang cultivar of jujube trees and 3 seedlings from open pollinated of Ukraine genotypes were used. The tree spacing was 3.50×1.26 m. Spraying of Borax showed that average numbers of fruits were higher than the other treatments, average values of height, weight, width and thickness were also higher than the other treatments. On the other hand Urea and Girdling gave poor results in both years. In case of seedlings, different treatments for fruit setting have not given good results. Spraying with different treatments did not affect fruit-setting and pomological characteristics as well, in a larger scale. In 2006, bud breaking started in jujube cultivars on 28th April and in seedlings on 6th May. In 2007, bud breaking started in jujube cultivars 11 days earlier and 10 days earlier on 26th April in seedling. In jujube cultivars, there were some variations in the dates of flowering during 2006; the average date of flowering was 26th June in 2006 for all cultivars of jujube. In seedlings, flowering started on 6th July 2006. During 2007 flowering started in jujube cultivar jujube cultivars started flowering 12 days earlier and seedlings 22 days earlier. During 2006, fruit set started in jujube cultivars and seedlings, on 12th July and 14th July respectively. During 2007, fruit set started in jujube cultivars and seedlings on 1st July and 10th July respectively. In 2007 fruit set in jujube cultivars started 11 days earlier and in seedlings 4 days earlier. During 2006, ripening started in jujube cultivars and seedlings on 26th Sept. During 2007 ripening started in jujube cultivars and seedlings on 2nd and 10th Sep. respectively. In 2007, ripening started in jujube cultivars 24 days earlier and seedlings 16 days earlier. Statistical evaluations of the data showed the differences between 2006 and 2007.
Keywords: jujube, cultivars, seedlings, flowering, fruit setting, timing.
For citation: Mishra S., Tarafdar M., Singh R. K. Chemical and mechanical methods on fruit setting and pomological traits of Chinese jujube (Ziziphus jujuba Mill.) under Czech agro climatic condition // Agrarian Bulletin of the Urals. 2020. No. 06 (197). Pp. 17‒25. DOI: 10.32417/1997-4868-2020-197-6-17-25.
