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Effects of Exogenous Calcium and Calcium Ion Inhibitor on Cold Resistance of pistil of Kernel Apricot

Agricultural Science & Technology 2017年第10期18卷 1900-1903页

作者： Tiezheng LIU Xiangmin sue Jing WANG Guosheng LIU Yali FU Shijiazhuang Pomology Institute Hebei Academy of Agriculture and Forestry Sciences Shijiazhuang 050064 China Shijiazhuang Academy of Agriculture and Forestry Sciences Shijiazhuang 050041 China Shijiazhuang Municipal Bureau of Landscape Shijiazhuang 050019 China

With a kernel apricot cultivar Youzhu 07-3 as the test material, the effects of exogenous calcium and calcium inhibitor on the cold resistance of pistils were investigated. In the bud germination and enlargement period, exogenous calcium and calcium ion inhibitor were sprayed to the kernel apdcot trees, respectively. At the full-bloom stage, a certain number of flower branches of kernel apricot were sam- pied and subjected to low-temperature stress indoor, and the soluble sugar content, MDA content, SOD activity and POD activity in the pistils were determined. The results showed that exogenous calcium increased the soluble sugar content, reduced the MDA content and improved the SOD and POD activity in pistils, and it significantly relieved the cold damage to pistils and improved the cold resistance of pistils; while exogenous calcium ion inhibitor showed the opposite effects.

关键词： Kernel apricot pistil Exogenous calcium Cold resistance

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Effects of simulated acid rain on fertility of litchi

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Journal of Environmental Sciences 2005年第6期17卷 1034-1037页

作者： QIU Dong-liang LIU Xing-hui GUO Su-zhi College of Horticulture Fujian Agriculture and Forestry University Fuzhou 350002 China

The regulatory role of calcium in fertility of pollen and pistil under simulated acid rain was investigated. The germination percentage of pollen treated with acid rain of pH 4.5 was 9.42% lower than that of control, and that of pH 3.5, pH 2.5 and pH 1.5 were 22.47%, 45.49% and 71.62%, respectively. Simultaneously, the injury character of pollen was obviously observed when flowers were treated with acid rain of pH 3.5. The difference in fruit setting rate between the female flower treated with acid rain of pH 4.0 and the control was significant at p 〈 0.05. Ca（NO3 ）5 of 0.2-0.4 mmol/L could promote pollen germination under the stress of acid rain. The beneficial function was reduced when calcium concentration surpassed 0.8 mmol/L. Spraying 2 mmol/L Ca（NO3 ）5 reduced the injury of acid rain to pistil and increased fruit-setting rate significantly. The physiological importance of calcium during pollen germination and pistil development was also discussed.

关键词： simulated acid rain litchi( Litchi chinensis Sonn. ) pollen pistil fruit-setting ultrastructure

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A New Technique for Whole Clearing

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Agricultural Science & Technology 2010年第2期11卷 15-18,60页

作者：洪亚平李友军仝克勤张友福韩赞平河南科技大学农学院河南洛阳471003

[Objective] The research aimed to study a new whole clearing and preparation technology.[Method] After young seeds of Stephania *** in the alcohol solution,as well as the fresh pistil and nucellus of Sorghum bicolor were separated,they were soaked and cleared in the solution of 84 *** the plant materials could be mounted by using three methods.[Result] The globular embryos and heart-shaped embryos at different stages of Stephania *** well as the pistil,nucellus,embryo sac,hypostase o...

关键词： Whole clearing technology 84 disinfectant Seed pistil Nucellus

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