Effect of Harvest Age and Seed Rates on Yield and Quality of Some Sugarcane Varieties

Abstract

A field experiments were conducted at Agric. Res. St. (latitude of 26.33° N and longitude of 31.41° E), Sohag Governorate, Egypt during 2020/2021 and 2021/2022 seasons to find out the optimal of seeds rates (1.0, 1.5 and 2.0 drills) and harvest ages (10, 11 and 12 months) for yield and quality of three sugarcane varieties "Saccharum officinarum L." (G.T. 54-9, G. 2003-47 and G. 2004-27). A split-split plot arrangement with three replications was used. The main-plots devoted for harvest ages, seed rates in sub plots, while, sugarcane varieties distributed in the sub-sub plots, in both seasons. Findings revealed that delaying the harvest age from 10 to 12 resulted in a significant increase in millable stalk height, diameter, number of millable canes/fed, cane and sugar yields/fed, along with brix, sucrose, and sugar recovery%, in both seasons. The results revealed that, planting sugarcane using 2.0 drills improved height, number of millable canes/fed, cane and sugar yields/fed. While, planting by using 1.0 drill improvised millable stalk diameter and quality characteristics in both seasons. Sugarcane variety G.2004-27 superiority in cane yield and millable stalk height and diameter compared to the variety G.T.54-9. While, G.2003-47 variety was superior in quality characteristics and sugar yield/fed. However, G.2004-27 variety attained greater number of millable canes/fed, in both seasons. Under conditions of this work, it is recommended to cultivate these sugarcane varieties by rates of 2.0 drills and harvest age to 12 months to achieve a high cane and sugar yields/fed.

Enhancement of production and quality of sugarcane using nitrogen and vinasses

“…Such varietal differences can be referred to the same trend of both brix% and sucrose% (Tables 6 and 7) recorded by the previously mentioned varieties. Similar results were reported by Fahmy et al (2017), El-Bakry (2018), Gadallah and El-Mehareb (2020) and Ali et al (2022).…”

“…e variance between the two cane varieties in this trait may be due to their gene makeup. Similar observations were reported by Makhlouf et al (2016), Fahmy et al (2017) Gadallah and Abd El-Aziz (2019), Gadallah et al (2020), andAli et al (2022). Increasing N-level given to sugarcane to 210 and 240 kg N/fed.…”

“…over those gained from other tested variety G. 2003-47, in the 1 st and 2 nd seasons respectively. Similar findings were reviewed by Fahmy et al (2017), Gadallah and El-Mehareb (2020) and Ali et al (2022).…”

“…Data in Table 7 showed that the promising variety G.2003-47 had the highest sucrose% preceding G.2003-47 compared to G.T.54-9 in the 1 st and 2 nd season. Such varietal differences among cane varieties in sucrose% were reported by Fahmy et al (2017), El-Bakry ( 2018), Gadallah and El-Mehareb (2020) and Ali et al (2022).…”

“…The newly bred varieties showed variable responses to different agronomic practices. Makhlouf et al (2016), Fahmy et al (2017), El-Bakry (2018) Gadallah and Abd El-Aziz (2019), Gadallah et al ( 2020), Gadallah and Mehareb (2020) and Ali et al ( 2022) found that sugarcane variety G.T.54-9 showed the superiority in stalk height, stalk diameter, number of millable canes as well as cane and sugar yields/fed. while G.2003-47 was superior in juice quality characteristics.…”