• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bangladesh Journal of Botany >Effects of growth regulations and fertilizers on flowering and nutrient element of Jatropha curcas L
【24h】

Effects of growth regulations and fertilizers on flowering and nutrient element of Jatropha curcas L

机译：生长规律和肥料对麻疯树开花和营养元素的影响

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

摘要

To understand the effect of exogenous substances on flower bud differentiation and nutrient element of Jatropha curcas L. different levels of Kn + 2,4-D + fertilizer, P or K (treatments) were sprayed on the stem apex with orthogonal test. Results showed that the certain treatment could promote the flower bud formation. The optimum treatment was Kn (200 mg/l) +2,4-D (50 mg/l) + N (urea 1%) and 2,4-D was the most important factor in promoting flower bud formation. There were some obvious changes in the content of N, P, K, sugar and starch (nutrients) in the critical period of bud physiological differentiation. The carbohydrate content and C/N ratio came to a maximum in about 7 days after the treatment and then N content began to increase and reached maximum in about 15 days. More nutrients were consumed in flower bud morphodifferentiation and the content of N, sugar and starch reduced to a minimum gradually. The C and N content increased first and then remained stable until the stem apex stopped growing. Higher C/N ratio could benefit the flower bud differentiation. K had an important effect on the flower bud differentiation, flowering and fruiting of J. curcas and it was mostly absorbed in the critical period of bud physiological differentiation.
机译：为了了解外源物质对麻疯树花芽分化和营养元素的影响，通过正交试验向茎尖喷不同水平的Kn + 2,4-D +肥料，P或K（处理）。结果表明，一定的处理可以促进花芽的形成。最佳处理方法是Kn（200 mg / l）+ 2,4-D（50 mg / l）+ N（尿素1％），而2,4-D是促进花芽形成的最重要因素。在芽生理分化的关键时期，氮，磷，钾，糖和淀粉（营养素）的含量发生了一些明显的变化。处理后约7天，碳水化合物含量和C / N比达到最大值，然后N含量开始增加并在约15天内达到最大值。花蕾形态分化中消耗了更多的养分，氮，糖和淀粉的含量逐渐降低至最低。碳和氮含量首先增加，然后保持稳定，直到茎尖停止生长。较高的碳氮比有利于花芽分化。钾对麻疯树的花芽分化，开花和结实有重要影响，钾主要在芽生理分化的关键时期被吸收。

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