华北农学报Issue(3)：163-169,7.DOI:10.7668/hbnxb.2015.03.028
抑制无效分蘖对不同基因型水稻根系特征及养分吸收的影响
Effects of Physical Restriction in Non Productive Tiller on Root Characteristics and Nutrition Absorption in Rice
摘要
Abstract
Effects of physical restriction in non productive tiller on root characteristics and nutrient absorption were studied using two rice cultivars , Peizataifeng and Yuejingsimiao , respectively , in a pot experiment with water culture .In this study ,physical restrictions were done by designing different transplanting holes which was 20 ,28 ,35 mm,denoted as D1,D2 and D3,respectively.Compared to D1 and D3,total grain number per panicle and yield in Peizataifeng and Yuejingsimiao under D2 were significantly increased.Total root length,superficial area,volume,tips and forks at panicle initiation in Peizataifeng and Yuejingsimiao was remarkably higher than that under D 2 than D1 , respectively .Compared to D1 ,the content of phosphorus and potassium of stem at heading stage in Peizataifeng was remarkable higher than that under D2 and D3,respectively.Compared to D1 and D3,there was significant increase in total potassium accumulation under D 2 at the heading stage in rice .Total nitrogen accumulation and phosphorus accumulation and potassium accumulation was significant higher under D 3 than that under D1 at the panicle initia-tion stage and heading stage in Yuejingsimiao , respectively .Correlation analysis showed that there was significant positive correlation between root length at heading stage and total nitrogen accumulation and potassium accumula -tion .There was also significant positive correlation between superficial area and volume of rice and total nitrogen ac -cumulation ,phosphorus accumulation and potassium accumulation .And it was found that there was remarkable posi-tive correlation between average root diameter and total phosphorus accumulation and potassium accumulation .关键词
物理限制/无效分蘖/水稻/根系特征/养分吸收Key words
Physical restriction/Non productive tiller/Rice/Root characteristics/Nutrition absorption分类
农业科技引用本文复制引用
陈燕红,唐湘如,肖瑶,吴颖仪,段美洋,田华,肖立中,潘圣刚..抑制无效分蘖对不同基因型水稻根系特征及养分吸收的影响[J].华北农学报,2015,(3):163-169,7.基金项目
国家自然科学基金项目（31471442）；教育部新教师基金项目（20124404120009）；农业部作物生理生态与耕作重点实验室开放课题项目 （）
