Evaluating the effect of sugarcane planting methods on growth and radiation use efficiency of its different varieties

T. Ahmad, N. Fiaz, T. Khaliq, ,. M. A. Mudassir
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Abstract

To examine the growth and radiation use efficiency (RUE) of different sugarcane cultivars (HSF 240, CP 77-400 & CPF 249) under two planting methods (2.5 feet apart single row, a farmers’ practice, and 4 feet apart dual rows deep trench plantings, a recommended practice) at Research Farm of Sugarcane Research Institute (SRI), Ayub Agricultural Research Institute (AARI), Faisalabad during 2019-20. The experiment was carried out in randomized complete block design with split-plot arrangement in three repeats. The results showed maximum dry matter (3348.24 g m-2), CGR (21.49 g m-2 day-1), mean CGR (12.78 g m-2 day-1), LAI (7.81), leaf area duration (1290.32 days), along with radiation use efficiency for total dry matter (2.16 g MJ-1) and cane yield (6.32 g MJ-1) in 4 feet apart dual rows trench planting in comparison to 2.5 feet apart single row trench planting, 2.08 g MJ-1 and 5.70 g MJ-1, respectively. On the other hand, higher dry matter (3451.42 g m-2), CGR (21.54 g m-2 day-1), mean CGR (13.16 g m-2 day-1), LAI (8.01), LAD (1324.58 days), RUE for dry matter production (2.20 g MJ-1) and cane yield (6.53 g MJ-1) was recorded in variety CP 77-400, a direct introduction to SRI, as compared with local material, HSF 240 and CPF 249 and occupying large area in whole Punjab-Pakistan.
评价甘蔗种植方式对不同品种生长和辐射利用效率的影响
2019- 2020年,在费萨拉巴德Ayub农业研究所(AARI)甘蔗研究所(SRI)的研究农场,研究不同甘蔗品种(HSF 240, CP 77-400和CPF 249)在两种种植方法(农民实践2.5英尺单行种植和推荐实践4英尺双行深沟种植)下的生长和辐射利用效率(RUE)。试验采用完全随机区组设计,分为3个重复。结果表明:与单行沟播相比,4英尺沟播的干物质最大(3348.24 g m-2), CGR (21.49 g m-2 day-1),平均CGR (12.78 g m-2 day-1), LAI(7.81),叶面积持续时间(1290.32 d),总干物质辐射利用效率(2.16 g MJ-1)和甘蔗产量(6.32 g MJ-1)分别为2.08 g MJ-1和5.70 g MJ-1。另一方面,直接引种SRI的品种CP 77-400的干物质产量(3451.42 g m-2)、CGR (21.54 g m-2 day-1)、平均CGR (13.16 g m-2 day-1)、LAI(8.01)、LAD (1324.58 d)、RUE (2.20 g MJ-1)和甘蔗产量(6.53 g MJ-1)均高于当地材料HSF 240和CPF 249,且在整个旁遮普-巴基斯坦占据较大面积。
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