• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Research on Crops >Effect of planting date and amount of seed on light distribution and interception through canola cultivars canopy
【24h】

Effect of planting date and amount of seed on light distribution and interception through canola cultivars canopy

机译：播种日期和种子数量对油菜品种冠层光分布和截获的影响

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

Now-a-days, success in plant inbreeding science to increase yield in a large extent depends on light distribution and utility's management in plant canopy. Evidence shows that whatever the amount of light interception is more, both economical and biological function will increase, the more amount of light absorption, the more both economical and biological yield, but ration's increase as economical yield as compared with biological yield in grain crops, such as canola is considered. Therefore, in a successful cultivation, firstly, the sufficient leaf area should be provided to absorb the maximum irradiance in the plant association and secondary this leaf area should be obtained in a much shorter time. Management's actions in planting plants such ascanola for its planting adornment, plant density and cultivation's time should include these purposes too. To study the connection between planting time and bush density by light transmission and depreciation method in the plant canopy of canola spring cultivars, this study was performed in 2006, in the farm of investigative designs of Isfahan natural resources and agricultural research center in Kabootarabad Agricultural Research Station. Three canola spring cultivars were studied in three winter planting dates and each of them in three seed amounts in the form of split-factorial statistical design with four replications. Results showed that light absorption in all of the present depth for all the studied cultivars in planting date of 9th February wasmore than its sooner and later cultivation. RGS003 cultivar with absorption 725 w/m~2 showed the most amount of light absorption in the flowering stage. With comparison of different bush densities, also in general, the most using density i. e. 12 kg seeds used in each hectare, was the light depreciation amount in the present depth. The ability of these three planted cultivars was in absorption of solar irradiation resulted from planted seed amount. The amount of bush dry weight and grain yield resultedfrom the total amount of light absorption and the share of upper and lower half of canopy resulted from various cultivars showed difference in this case. The effect of the planted seed amount on the extinctioncoefficient (K) was performed through producing differences in the leaf area index (LAI). The maximum amount of planting density in all the cultivars and in each of three studied planting dates was closer to the absorption potential of maximum light in the canopy.
机译：如今，植物近交科学在很大程度上提高产量的成功取决于植物冠层的光分布和公用事业部门的管理。有证据表明，无论光拦截的数量越多，经济和生物学功能都会增加，光吸收量越大，经济和生物产量就越多，但是与粮食作物的生物产量相比，定量作为经济产量的增加，如油菜籽被认为。因此，在成功的栽培中，首先，应提供足够的叶面积以吸收植物协会中的最大辐照度，其次，应在更短的时间内获得该叶面积。管理层在种植诸如紫锥花的植物装饰，植物密度和栽培时间等方面的行动也应包括这些目的。为了通过光透射和折旧方法研究油菜春季品种的植物冠层中播种时间与灌木密度之间的关系，本研究于2006年在伊斯法罕自然资源调查设计农场和卡博塔拉巴德农业研究中心的农业研究中心进行。站。在三个冬季播种日期研究了三个油菜春季品种，并以分裂因子统计设计和四个重复的形式，以三个种子量分别对其进行了研究。结果表明，在2月9日播种日期，所有研究品种在目前所有深度的吸光度均大于其早晚栽培。吸收率为725 w / m〜2的RGS003品种在开花期吸收的光最多。通过比较不同的灌木密度，通常使用密度i最多。 e。每公顷中使用的12千克种子是当前深度的光折旧量。这三个种植品种的能力是由于种植种子量而吸收太阳辐射。在这种情况下，由光吸收总量导致的灌木干重量和谷物产量以及由不同品种导致的冠层的上半部分和下半部分的份额显示出差异。通过产生叶面积指数（LAI）的差异来实现播种量对消光系数（K）的影响。在所有品种和三个研究的种植日期中，每个种植品种的最大种植密度都接近冠层最大光的吸收潜力。

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