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Productivity-based evaluation of elite sugarcane cultivars for sustainable sugar production

机译：精英甘蔗的生产力量化评价可持续糖产量的品种

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摘要

This study was aimed at screening out local and exotic sugarcane clones based on productivity. Twenty-three early sugarcane varieties cultivated at model farms of Sugar Research Institute Shakkarganj (Pakistan) on September 2008 were examined periodically for juice extract, Brix, Pol, purity and sucrose recovery during the October to March crushing season of 2009-2010. A steady rise in quality was seen from the 11-12 month growth period until maturity with a clear decline afterwards to follow a quadratic equation given a strong correlation coefficient r(2)approximate to 1. A highly significant difference (P0.01) was observed within varieties and harvest period for all quality parameters. Juice extract (75.60%) and purity (87.65%) were recorded at a maximum in CP-77-400 and CP-80-1827 cultivars, respectively, whereas Brix (20.44%), Pol (17.10%) and sucrose recovery (11.03%) were highest in the CSSG-676 variety. Screening of cultivars was implemented on the basis of a logically developed productivity scale based on high sucrose recovery (>= 9.5%). The validity of the technique was ascertained by comparing varietal potentials on a productivity scale with those at 'full maturity' and from 'mean estimates'. Based on productivity, CSSG-676, HoSG-2875, HSF-240, CP-77-400 and CP-87-1628 were demonstrated to be outstanding cultivars resistant to climatic stresses giving 7.69-9.78% excessive sucrose recovery. The CP-65-357, CPF-243, CP-85-1491, HoSG-1257, CP-72-2086, CP-80-1827, HoSG-104 and CPF-237 were also shown to be promising varieties with a high excessive sugar yield. Ganjbakhsh, Hoth-127 and SPSG-26 varieties did not perform well, and the cultivar GT-11 could not even reach the established minimum sucrose recovery level. The study would certainly be helpful in improving the gloom scenario of the sugar industry worldwide.
机译：本研究旨在筛选本地和异国情调的甘蔗克隆基于生产力。二十三个甘蔗品种早期培养糖研究所的模范农场Shakkarganj(巴基斯坦)于2008年9月定期检查果汁提取、白利糖度波尔、纯洁和蔗糖在复苏10月到2009年3月粉碎的季节- 2010。从11 - 12都能看到质量稳步上升月生长期到期清晰下降后跟着一个二次方程有很强的相关性系数r(2)近似为1。观察差异(术中,0.01)品种质量和收成参数。(87.65%)最高记录在cp - 77 - 400分别和cp - 80 - 1827品种,而白利(20.44%)、波尔(17.10%)和蔗糖的复苏(11.03%)最高的cssg - 676品种。筛选品种实施的逻辑上发达生产力尺度的基础基于高蔗糖恢复(> = 9.5%)。确定了技术的有效性在生产力比较品种潜力规模与在完全成熟的“意思是估计”。hsf hosg cssg - 676 - 2875 - 240, cp - 77 - 400cp - 87 - 1628被证明是优秀的品种耐气候压力7.69 - -9.78%蔗糖复苏过度。cp - 72 - 2086, hosg cp - 80 - 1827 - 104和cpf - 237也证明是有前途的品种高过多的糖产量。SPSG-26品种表现不好,品种GT-11甚至不能到达建立最低蔗糖恢复水平。肯定会有助于改善学习全球制糖业的黑暗场景。

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