• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Australian Society of Sugar Cane Technologists Conference; 20050503-06; Bundaberg(AU) >PRODUCTIVITY INCREASES FROM NEW VARIETIES IN THE QUEENSLAND SUGAR INDUSTRY
【24h】

PRODUCTIVITY INCREASES FROM NEW VARIETIES IN THE QUEENSLAND SUGAR INDUSTRY

机译：昆士兰制糖业的新品种提高了生产率

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Measures of the contribution of new varieties to improving sugarcane productivity are important but have been difficult to obtain. Large seasonal variation, expansion on to more marginal soils, and the contribution of improved agronomic practices are some of the problems associated with isolating varietal effects on productivity in the broad sense. Commercial productivity data of individual varieties (tonnes, hectares, cane yield, CCS and sugar yield) are available to varying degrees across the Australian industry. However, these data have remained fragmented across mills and regions. Recently, a database was created with available information on varietal performance in the period 1980 to 2003, as well as the release dates of all varieties in each region. While the dataset has some missing information, it does allow robust analyses of the impact of new varieties on productivity. Restricted maximum likelihood methods were used to analyse this highly unbalanced dataset. Weightings were applied to productivity data based on the percentage of the crop of each variety in each mill area and season. Best Linear Unbiased Predictors were used to estimate varietal effects for cane yield, CCS and sugar yield and to determine commercially realised genetic gain over various periods in different regions. Significant and substantial genetic gains for cane yield, sugar yield and, to a lesser extent CCS, were found in all regions over the past 30 years. Average sugar yield increases of 0.13-0.31 tonnes of sugar per hectare per year indicate that new varieties have made and are continuing to make a major contribution to the viability and profitability of the Australian sugar industry. These data will be updated annually and analyses will be performed on an on-going basis to benchmark future rates of genetic gain. Estimates of the return on the sugar industry investment in plant breeding are also possible from these data. Currently, this equates to an additional gross income of over $20 million each year.
机译：衡量新品种对提高甘蔗生产力的贡献的措施很重要，但很难获得。从广义上讲，与大范围的品种隔离对生产力的影响有关的一些问题是季节性变化大，向边缘土壤扩展以及改良农艺方法的贡献。在整个澳大利亚工业中，都有不同程度的单个品种的商业生产力数据（吨，公顷，甘蔗产量，CCS和糖产量）。但是，这些数据在工厂和地区之间仍然是零散的。最近，创建了一个数据库，其中包含有关1980年至2003年期间品种表现的可用信息，以及每个地区所有品种的发布日期。尽管数据集缺少一些信息，但确实可以对新品种对生产力的影响进行可靠的分析。限制最大似然法用于分析此高度不平衡的数据集。基于每个工厂区域和季节中每个品种的作物百分比，将加权应用于生产力数据。最佳线性无偏预测器用于估计甘蔗产量，CCS和糖产量的品种效应，并确定不同地区不同时期商业实现的遗传增益。在过去30年中，在所有地区都发现了甘蔗产量，糖产量以及较小程度上的CCS的大量重要遗传收获。每年每公顷食糖平均增产0.13-0.31吨食糖，这表明新品种已经制成并将继续为澳大利亚制糖业的生存能力和盈利能力做出重大贡献。这些数据将每年更新，并会持续进行分析，以标定未来的遗传增益率。从这些数据也可以估算制糖业对植物育种的投资回报。目前，这相当于每年增加超过2,000万美元的总收入。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号