Growth and Yield Potential of New Sugarcane Varieties during Plant and First Ratoon Crops

Abstract

Newly released sugarcane varieties need to be adapted to various environments. This research was aimed at examining the growth and yield potential of newly released varieties of sugarcane in the first year as plant cane (PC) and the second year as first ratoon cane (RC1) on dry land. The research was carried out at Wedarijaksa station, Trangkil Sugar Mill area, Pati, Central Java in 2019–2021. Four sugarcane varieties were grown using a double rows system, AAS Agribun, ASA Agribun, AMS Agribun, and CMG Agribun and one commercial variety, PSJK 922. Measurements of crop growth were made periodically: yield components at harvest in PC-RC1, and physiological characteristics 5 months after planting. The results indicate that mean tonnes of cane and sugar per hectare between PC and RC1 decreased by 22.7% and 21.0%, respectively, for AAS Agribun, ASA Agribun, and CMG Agribun due to decreased stem weights. AMS Agribun showed the smallest decrease in tonnes of cane (4%) and increase in tonnes of sugar per hectare (2%) from PC to RC1. The highest number of tonnes of sugar in PC was achieved by ASA Agribun (12.8 t ha−1), slightly above PSJK 922 (12.69 t ha−1). The decline in tonnes of cane and sugar needs to be reduced by the continuously improving cultivation techniques. The mean photosynthetic water use efficiency of tested new varieties was 7.46 µmol CO2 mol H2O−1. These research findings provide information on crop performance and can be used as a basis for selecting varieties to be developed in the region. Further studies will be required to test these new sugarcane varieties in a wide range of agroecological zones in Indonesia.

Evaluating different green manuring plant species and stool destruction methods for enhancing sugarcane yield at Wonji-Shoa Sugar Estate, Ethiopia

“…The observed improvement in cane yield due to the green manuring treatments can be attributed to the corresponding increase in the stalk population, as shown in Table 6 . This relationship is logical since the sugarcane population is crucial in determining sugarcane yield [ 66 ]. Bell and Garside [ 14 ] also noted that enhancements in sugarcane yield through soil amendment primarily occur due to the production of a greater number of stalks per unit area.…”

“…This, in turn, led to variations in the cane population and height ( Table 6 ). Given that cane yield is predominantly influenced by the cane population and height [ 66 ], the result observed for these yield components might directly influence the sugar and cane yields ( Table 6 ).…”

A simplified approach to satellite-based monitoring system of sugarcane plantation to manage yield decline at Wonji-Shoa Sugar Estate, central Ethiopia

“…The lower goodness of fit observed in ratoon crops may be attributed to the poor growth condition of this crop that emanates from the development of toxic chemicals in the rhizosphere, the low ability of ratoons to take up nutrients, the depletion of soil nutrients, soil compaction, and increased insect and disease incidence after harvest of plant cane crop [ 80 ]. As a result, the yield of ratoon cane is usually 10–30% less than that of plant cane crop [ 80 , 81 ].…”

Mitigating the repercussions of climate change on diseases affecting important crop commodities in Southeast Asia, for food security and environmental sustainability—A review

“…• Thick white strands of mycelia on infected roots and collar regions, with wood appearing cream-colored and soft due to lignin degradation byfungus (RRISL, 2013) deficits (Khonghintaisong et al, 2021). Meanwhile, new highyielding sugarcane varieties are being developed in Indonesia as part of the nation's crop improvement initiative (Riajaya, 2021;Riajaya et al, 2022).…”