• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Seed Technology >Reduction of Summer Storage Temperatures to Improve Carryover Quality of Soybean Seed
【24h】

Reduction of Summer Storage Temperatures to Improve Carryover Quality of Soybean Seed

机译：降低夏季储存温度以提高大豆种子的残留品质

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

Although soybean [Glycine max (L.) Merr.] seed quality deteriorates rapidly, there has been interest in storing seed beyond the first planting season. The effect of reducing summer warehouse storage temperatures on seed germination, vigor and field emergence during two carryover years of storage was evaluated. Seed lots with acceptable standard germination (> 80%), but variable levels of vigor, mechanical injury and seed infection by Phomopsis longicolla Hobbs were placed in uncontrolled warehouse storage at two locations (Kentucky and Indiana). Seed was sampled at three-month intervals for over two years and tested for germination and vigor (accelerated aging AA). Seventeen seed lots were moved from the warehouses to constant temperatures [13 (IN)or 16 (KY) °C] as summer temperatures increased above these levels and returned to the warehouse when temperatures declined below the same level. Seed lots infected with P. longicolla increased in seed germination and vigor as fungal viability declinedduring the first six months of storage in all storage environments. All seed lots stored continuously in the warehouse maintained > 80% germination through -450 days of storage (one year carryover), but few had acceptable (> 80% AA) seed vigor. Reducingsummer temperatures increased the seed vigor (2 to 54 percentage points) and field emergence (0 to 33 percentage points) of many seed lots. Most seed lots with > 80% AA germination initially (April, first year of storage) maintained adequate seed vigor (> 80% AA ) and field emergence after one year of carryover storage. High initial levels of mechanical injury or seed infection by P. longicolla had little effect on rate of deterioration and storability compared to sound seed lots in all storage environments. Reducing summer temperatures may provide a practical, economic option for carryover soybean seed in warehouse storage.
机译：尽管大豆[Glycine max（L.）Merr。]的种子质量迅速下降，但是人们对在第一种植季节之后储存种子有兴趣。评估了降低夏季仓库储存温度对在两个结转储存年中种子发芽，活力和田间出苗的影响。具有可接受标准发芽率（> 80％）但活力水平，机械伤害和Phphopsis longicolla Hobbs感染种子的种子批次被放置在两个地点（肯塔基州和印第安纳州）的不受控制的仓库中。每隔三个月对种子取样两年，并测试其发芽和活力（加速衰老的AA）。随着夏季温度超过这些水平，有17个种子批次从仓库移至恒定温度[13（IN）或16（KY）°C]，并在温度降至相同水平以下时返回仓库。在所有存储环境中，存储的头六个月内，由于真菌活力下降，感染了P. longicolla的种子批次的种子发芽和活力增加。通过-450天的存储（一年结转），所有连续存储在仓库中的种子批次均保持> 80％的发芽率，但很少有可接受的种子活力（> 80％AA）。降低夏季温度可提高许多种子批次的种子活力（2至54个百分点）和田间出苗（0至33个百分点）。最初（AA，发芽的第一年）萌发> 80％AA的大多数种子批次保持足够的种子活力（> 80％AA），并且在结转储存一年后出现田间出苗。与所有存储环境中的合格种子批次相比，高初始水平的机械伤害或长双歧杆菌感染种子对退化率和可存储性的影响很小。降低夏季温度可能为仓库存储中的残留大豆种子提供实用，经济的选择。

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