WANG Rong,HE Wen-shou.Study on Dry Matter Accumulation and Distribution Characteristics of Sunflower[J].Northern Horticulture,2014,38(05):1-6.
向日葵干物质积累及分配特点研究
- Title:
- Study on Dry Matter Accumulation and Distribution Characteristics of Sunflower
- 文章编号:
- 1001-0009(2014)05-0001-06
- Keywords:
- sunflower; dry matter; accumulation; distribution
- 分类号:
- S 565.5
- 文献标志码:
- A
- 摘要:
- 采用田间试验与测试分析相结合的方法，分别在宁夏固原、盐池等地设置了食用葵和油用葵干物质测定试验，研究了在施肥与不施肥条件下向日葵不同生育期干物质积累特点。结果表明：食用葵和油用葵在施肥与不施肥情况下，向日葵干物质积累量随生长发育均呈“S”型趋势，这一趋势可用Logistic方程模拟；且油用葵和食用葵的干物质累积比例在苗期均为叶片>茎秆>根，现蕾期为茎秆>叶片>根>花盘，开花期为茎秆>叶片>花盘>根，成熟期为茎秆>籽实>花盘>叶片>根，且干物质含量随生育期延长呈增加态势；合理施肥能明显增加向日葵干物质积累量，食用葵施肥处理干物质总累积量较不施肥处理增加53-70%，油用葵施肥处理干物质总累积量较不施肥处理增加5918%；食用葵干物质总累积量与油用葵相比，差异不显著。
- Abstract:
- The sunflower’s dry matter accumulation characteristic was studied in Guyuan，Yanchi in Ningxia by using a field experiment combined with test analysis in two different kinds of sunflowers(confectionary sunflower and oilseed sunflower).The results showed that confectionary sunflower and oilseed sunflower with or without fertilizer，the dry matter accumulation contents were showed a ‘S’ curve along with the growth stages，and could be imitade by a Logistic equation；the proportion of dry matter in the seedling time showed：leaf>stem>root，budding period：stem>leaf>root>faceplate，flowering period：stem>leaf>faceplate>root，mature period：stem>seeds>faceplate>leaf>root.Reasonable fertilization had a great influence on dry matter accumulation contents of the sunflower，the total dry matter accumulation of confectionary sunflower with fertilizers was higher 53.70% than the treatment of without fertilizer，and the oilseed sunflower with fertilizers was 59.18% higher.The difference of dry matter accumulation of oilseed sunflower was not significant with sunflower.
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备注/Memo
第一作者简介：王蓉（1988-），女，宁夏固原人，硕士研究生，研究方向为植物营养与作物施肥。E-mail:951821322@qq.com.