| Effect of uniconazole foliage spraying on lodging resistance and yield traits of oil-flax in arid land |
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| DOI：10.7606/j.issn.1000-7601.2017.03.08 |
| Key Words: oil-flax uniconazole spraying concentration lodging resistance yield traits |
| Author Name | Affiliation | | YANG Chong-qing | Guyuan Branch of Ningxia Academy of Agriculture and Forestry Sciences, Guyuan, Ningxia 756000, China | | CAO Xiu-xia | Guyuan Branch of Ningxia Academy of Agriculture and Forestry Sciences, Guyuan, Ningxia 756000, China | | ZHANG Wei | Guyuan Branch of Ningxia Academy of Agriculture and Forestry Sciences, Guyuan, Ningxia 756000, China | | LU Jun-wu | Guyuan Branch of Ningxia Academy of Agriculture and Forestry Sciences, Guyuan, Ningxia 756000, China | | QIAN Ai-ping | Guyuan Branch of Ningxia Academy of Agriculture and Forestry Sciences, Guyuan, Ningxia 756000, China | | YAN Kuan-jiang | Guyuan Branch of Ningxia Academy of Agriculture and Forestry Sciences, Guyuan, Ningxia 756000, China |
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| Abstract: |
| We conducted pot experiment (in 2014) and field experiment (in 2015) to study the effect of foliage spraying of uniconazole on lodging resistance and yield traits of oil-flax in arid land, with oil-flax cv. “Ningya20” as experimental material. Pot experiment results showed that the oil-flax was most sensitive to uniconazole in budding period, and there was a significant decrease in plant height and primary branch length of oil-flax with foliage spraying. Compared with control group, the plant height and primary branch length was reduced by 14.79 cm and 10.75 cm respectively. Field experiment results indicated that there was a negative correlation between the plant height and uniconazole concentration within the range of 50～150 mg·kg-1. The treatment with 150 mg·kg-1 uniconazole significant decreased the plant height, stem diameter, root diameter, anti-fracture of root, effective branch number, fruits per plant, seeds per fruit,1000-grain weight. The treatment of 100 mg·kg-1 uniconazole showed the largest effect, with an increasing yield by 27.83%. |
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