Search academic texts

Information × Registration Number 0221U100587, 0116U000287 , R & D reports Title Create a competitive heterosis hybrids of watermelon. popup.stage_title Head Serhiienko Oksana V, Доктор сільськогосподарських наук Registration Date 07-01-2021 Organization Institute of vegetables and melon growing National academy of agricultural sciences of Ukraine popup.description2 The object of research is varieties and hybrids of domestic and foreign selection, as well as own selection material. The purpose of research - based on the generalization of the results of theoretical research at a high methodological level to identify linear material by morphological genes for use in heterosis selection of watermelon; to create a new competitive heterozygous hybrid of watermelon on the basis of monoection type lines; expand the range of genotypic variability by induced mutagenesis. Research methods - hybridization in combination with different types of selection; laboratory-field. The sources of valuable traits were identified: monoeciousness – 57, early ripening – 39, yield – 61, disease resistance – 47, marketability – 10, dry soluble matter content – 15. According to morphobiological traits, 18 genes of table watermelon were identified: B – 3, yo – 3, С – 1, Scr –17, Тi – 5, go – 1, nl – 5, w – 1, g – 5, d – 21, t –7, dw-1-s – 1, gs – 1, a – 14, Fo – 12, Ctr – 5, Ar -2–7, cr –1. 76 significant 5 % significant correlation values between the characteristics of the source material were identified, of which 21 were strong. Two hybrids of watermelon Tatius F1 and Met F1 with a set of valuable economic characteristics were created: yield, respectively 40–45 t / ha (up to 53,3 t / ha) 35–40 (up to 45,8 t / ha), middle-early – 80-85 days. Chemical composition of the fruit: dry soluble substance: 9,9-10,6 %, sugar 8-9 %, vitamin C - 6-7 mg / 100 g, disease resistant (7-9 b). The level of profitability is 308-325 %. Economic effect from the cultivation of 17-34 t / ha. Reproduction of 56 promising genotypes. 20 lines of watermelon with high CA and a set of economically valuable traits have been created for use in heterosis selection. Methodical approaches to the use of linear material identified by morphological genes in heterosis selection of watermelon have been developed, which will allow to optimize and increase the efficiency of selection for heter  Product Description popup.authors Linnik Zakhar P Lukianchykova Oksana A Serhiienko Oksana V popup.nrat_date 2021-03-17 Close