Abstract
This study was initiated with the objective of determining the effect of different harvesting ages (12, 13, 14, 15, and 16 months) on yield and yield components of selected the two sugar cane varieties (B52/298 and NCo 334) grown in Finchaa sugar factory, Oromia, Ethiopia. A field experiment was conducted at Finchaa sugarcane plantation using a randomized complete block design of a factorial arrangement of 2 × 5 with three replications. The data were performed using SAS version 9.3, and a significant difference was considered at p ≤ 0.05. The results showed that B52/298 variety had a higher estimated recoverable sucrose than NCo 334 variety. The results also indicated that as harvesting ages increase yield, yield components of sugar cane quality are increased. The maximum sugar yield of 1.89-ton ha-1 month-1 was obtained at the harvesting age of 15 months. There was a significant difference (p < 0.05) between harvesting age and sugarcane varieties on cane yield, sugar yield, brix percent juice, pol percent, and recoverable sugar. Generally, the findings imply that as harvesting ages in month increase, brix percent juice, estimated recoverable sucrose, and sucrose percentage in both varieties were simultaneously increased. The findings suggested that B52/298 sugar cane variety with harvesting age between 14 and 16 is highly recommended to obtain optimum sugar cane yield and yield components at the tropical areas of Finchaa sugar factory.
Highlights
Sugarcane (Saccharum spp. hybrids) is a major industrial source of raw materials for sugar and ethanol production that is cultivated in tropical and subtropical areas around the world [1]
In these study effects of varieties, harvesting ages and their interaction on yields and yield components of sugarcane cultivated at Finchaa sugar factory, Oromia, Ethiopia, were investigated
The notable findings showed that B52/298 sugar cane variety exhibits good amount of cane yield, sugar yield, estimated recoverable sucrose, and sucrose percentage
Summary
Sugarcane (Saccharum spp. hybrids) is a major industrial source of raw materials for sugar and ethanol production that is cultivated in tropical and subtropical areas around the world [1]. Cane quality is one of the most important aspects of sugarcane postharvest management, as it deteriorates in the field due to factors such as ambient temperature, humidity, cane variety, storage time of soluble invertases in cane, and maturity status [3,4,5]. Age of harvest is one of the most significant factors affecting sugarcane production [6]. Environmental conditions, management practices, and pest pressure affect the optimum harvest age of sugarcane and their qualities components [7]. Authors showed that temperature, solar radiation, relative humidity, and total rainfall are climate variables that account for a significant difference in harvest age among sugarcane-growing countries
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