• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>European biomass conference and exhibition >PRODUCTION AND BIOMASS QUALITY OF GIANT REED (ARUNDO DONAX L.) IN RELATION TO STEM CUTTING PROPAGATION AND WATER AVAILABILITY IN THE SEMI-ARID MEDITERRANEAN CONDITIONS
【24h】

PRODUCTION AND BIOMASS QUALITY OF GIANT REED (ARUNDO DONAX L.) IN RELATION TO STEM CUTTING PROPAGATION AND WATER AVAILABILITY IN THE SEMI-ARID MEDITERRANEAN CONDITIONS

机译：在半干旱地中海条件下，巨型芦苇的产量和生物量质量与切茎繁殖和水分利用率相关

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An experimental research was carried out during two years (2009-2011) in Sicily region (SouthernItaly) to compare establishment of giant reed stem cuttings from basal (BS), median (MS) and apical (AS) part, intwo soil water conditions: I1 (Irrigated, 100% ETm restoration from transplant to end of dry summer season,corresponding to 267.5 mm); I0 (Rainfed, irrigation only at the planting date, corresponding to 17.5 mm). Results oftwo subsequent years of experiments showed that propagation through stem cuttings can be considered successful.Cumulative stem density during the first year was equal to 1.7 stem m~(-2), without significant differences in relation tostem traits (between 1.7 and 2.1 stem m~(-2)). In well watered soil conditions, sprouted stems was twice greater of thoseobserved in rainfed conditions (2.3 against 1.0 stem m~(-2)), moreover, yield difference was even wider (1.3 t ha~(-1)against 0.4 t ha~(-1), respectively). In the second growing cycle, no irrigation was made, however yield performance inrainfed condition was about 50% lower than irrigated one (8.0 t ha~(-1) against 15.1 t ha~(-1) respectively). Fiber qualitywas affected only by water availability: in the average of stem traits, rainfed condition increased both lignin (25%w/w) and cellulose (4 % w/w), while hemicellulose content was reduced of 15 % (w/w); ash content was notsignificantly affected by water treatment. The research pointed out that stem cuttings can be considered as successfuloption to establish giant reed; water supply during the first year influenced biomass quality, plant growth and yield;these two latter were affected also in the second growing cycle.
机译：在西西里岛地区（南部）的两年（2009-2011年）内进行了一项实验研究 意大利）比较在基部（BS），中部（MS）和根尖（AS）部位形成的巨大芦苇茎插条， 两种土壤水条件：I1（灌溉，从移植到夏末干燥的100％ETm还原， 对应于267.5毫米）; I0（有雨，仅在播种日期灌溉，对应于17.5毫米）。结果 随后的两年实验表明，通过stem插繁殖可以被认为是成功的。 第一年的累积茎密度等于1.7茎m〜（-2），与 茎性状（介于1.7和2.1茎m〜（-2）之间）。在浇水良好的土壤条件下，发芽的茎比发芽的茎大两倍 在雨育条件下观察到（2.3对1.0茎m〜（-2）），产量差异甚至更大（1.3 t ha〜（-1） 分别为0.4 t ha〜（-1）。在第二个生长周期中，没有灌溉，但是在 雨养条件比灌溉养分低约50％（分别为8.0 t ha〜（-1）和15.1 t ha〜（-1））。纤维品质 仅受水分供应的影响：在茎的平均性状中，雨育条件下两种木质素均增加（25％ w / w）和纤维素（4％w / w），而半纤维素含量减少了15％（w / w）;灰分含量不高 受水处理的影响很大。研究指出，stem插可以被认为是成功的。 选择建立巨型芦苇;第一年的供水影响了生物质，植物生长和产量; 后者在第二个生长周期中也受到影响。

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