| 油菜籽粒中钾素积累过程的初步研究 |
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| 引用本文： | 孙家刚,左青松,石剑飞,冷锁虎,董召娣,孙统庆.油菜籽粒中钾素积累过程的初步研究[J].中国油料作物学报,2007,29(4):448-451. |
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| 作者姓名： | 孙家刚 左青松 石剑飞 冷锁虎 董召娣 孙统庆 |
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| 作者单位： | 扬州大学江苏省作物遗传生理重点实验室,江苏 扬州225009 |
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| 基金项目： | 江苏省农业三项工程项目;江苏省重点实验室基金 |
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| 摘 要： | 通过定期测定甘蓝型双低油菜扬油6号籽粒的钾素含量，研究了籽粒中钾素积累动态，结果表明：（1）籽粒含钾率前期较高，随着籽粒的充实逐渐减小。（2）籽粒中钾素积累动态可用Richards方程拟合（R2=0.9963**～0.9981**）。（3）前期钾素积累的持续时间最长，约占55%；中期K素积累速率最大，积累量最大，所占比例也最大，均在50%以上，前期积累比例略少于40%，后期13%左右。（4）施用K肥籽粒K素积累时间和最终积累量有所增加，但总体来说影响不大。
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| 关 键 词： | 油菜 籽粒 钾素积累 Richards方程 |
| 文章编号： | 1007-9084（2007）04-0448-04 |
| 收稿时间： | 2007-05-29 |
| 修稿时间： | 2007年5月29日 |
Study of potassium accumulation in seeds of rapeseed |
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| SUN Jia-gang,ZUO Qing-song,SHI Jian-fei,LENG Suo-hu,DONG Zhao-di,SUN Tong-qing.Study of potassium accumulation in seeds of rapeseed[J].Chinese Journal of Oil Crop Sciences,2007,29(4):448-451. |
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| Authors: | SUN Jia-gang ZUO Qing-song SHI Jian-fei LENG Suo-hu DONG Zhao-di SUN Tong-qing |
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| Abstract: | Study of Potassium Accumulation in seeds of rapeseed SUN Jia-gang, ZUO Qing-song, SHI Jian-fei, LENG Suo-hu, DONG Zhao-di, SUN Tong-qing (Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University,Yangzhou 225009,China) Abstract: The trials were carried out in 2005～2006 to investigate the K accumulation of seed through measuring the K content in seed of rapeseed cultivar “Yangyou No. 6” (Brassica napus L.) under three K levels. The main results were as follows. (1) The K content of seed was high at former stage of seed filling, then decreased gradually as the growing of seeds. (2) The Richards equation could be used to describe the process of K accumulation in seeds (R2=0.9963**～0.9981**). (3) The time of early stage was longest among three stages in all treatments, and the ratio contributing to the whole time of K accumulation was about 55%. The rate and amount of K accumulation were highest in middle stage. The ratio of amount of K accumulation at middle stage was above 50%, and at early stage, late stage was about 40%, 13%, respectively. (4) The whole time and total amount of K accumulation increased as the increasing of k application, but effect was not significant. |
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| Keywords: | Rapeseed Seed K accumulation Richards equation |
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