Article Number: DRJAFS180372695

DOI: https://doi.org/10.26765/DRJAFS180372695

ISSN: 2354-4147

Vol. 9, Pp. 113-120, 2021

Copyright © 2021

Author(s) retain the copyright of this article


Original Research Article

Flowering performance of sugarcane genotypes under natural and artificial conditions

Mehareb*, Eid. M.

Wafaa E. Grad

Fouz Abo Elenen. F. M.


Abstract

This study included three experiments: two at El-Sabahia Research Station, Sugar Crops Research Institute, ARC, Egypt (31o 12 N) during the 2019/2020 (plant cane) and 2020/2021 (first ratoon) seasons, and one at Sugar Crops Research Institute breeding facilities, Agricultural Research Center (ARC), Giza, Egypt under artificial conditions. According to the results, the eleven sugarcane genotypes studied under natural and artificial flowering could be classified into four groups. The first group included four genotypes that flowered under both natural and artificial flowering conditions, namely ph8013, Bo 19, L61-49, and Bo 3. The four sugarcane genotypes that responded and achieved full flowering under natural and artificial flowering conditions could be classified as easy to flower genotypes. The second group consisted of four genotypes that only flowered during natural flowering conditions; Crystallina, CP44-105, CO 301, and GT 54-9 (the commercial variety). The third group included two genotypes that flowered only under artificial flowering conditions, F 161 and ROC 10. The fourth group included one genotype that did not respond to either natural or artificial flowering. The genotype is SP 79-2233. Furthermore, the results revealed that each of the genotypes that responded has its own characteristics in terms of pre-flag leaf stage duration, flag leaf stage duration, and emergence stage. Furthermore, each genotype has an optimal number of inductive cycles for flowering induction. The minimum and the maximum number of days to flower and the duration of the flowering period determine the crossing time of the genotypes studied and the possibility of synchronizing flowering of these genotypes with each other or with other genotypes.


Keyword: Sugarcane, plant cane, ratoon, flowering


 Received: March 16, 2021  Accepted: April 28, 2021  Published: April 30, 2021

1Mehareb Et Al


Copyright © 2021 Direct Research Journal of Agriculture and Food Science