[Objective] In order to seek the way of high quality and high yield of oilseed rape.[Method] Soil culture experiment was used in this research.1% （mass fraction） KCl solution was sprayed to the stems and leaves of o...[Objective] In order to seek the way of high quality and high yield of oilseed rape.[Method] Soil culture experiment was used in this research.1% （mass fraction） KCl solution was sprayed to the stems and leaves of oilseed rape in full blooming stage while 1.17% （mass fraction） K2SO4 solution and clear water were used for comparison,sampling in initial silique stage and harvest stage were conducted to detect photosynthate,soluble sugar and free amino acids content.[Result] The results showed that compared with spraying clear water,spraying KCl solution increased the contents of chlorophyll a in functional leaves,the contents of free amino acids and soluble sugar in leaves,stems and silique,and the total amounts of them all in initial silique stage but decreased the contents of free amino acids and soluble sugar in leaves and stems,and the total amounts of them all in harvesting stage,increased the average grain yield 10.20%,increased the average contents of oil,oleinic acid and linoleic acid in rapeseed 4.40%,10.60% and 11.40% respectively,decreased the content of protein,erucic acid and glucosinolate in rapeseed 5.10%,9.70% and 3.70% respectively.No significant difference between spraying K2SO4 solution and spraying clear water,significant difference between them all and spraying KCl solution.[Conclusion] The experimental results provided theoretical basis for increasing oilseed rape yield and quality researches.展开更多
Tunable color center lasers making use of electron trapping defects such as F A and F + 2 like centers in alkali halide crystals can deliver broadly tunable power over the near infrared 0.8—4.0μm range.The tunable r...Tunable color center lasers making use of electron trapping defects such as F A and F + 2 like centers in alkali halide crystals can deliver broadly tunable power over the near infrared 0.8—4.0μm range.The tunable range and their impressive feature of narrow linewidth make these solid state lasers important to molecular spectroscopy,pollution detection,fiber optics communication and other scientific research fields.The( F + 2) H center consisting of an F + 2 center and an neibouring O 2- ion,is one of the most important color centers.In this paper,we will study the preparation,absorption and emission spectra of the ( F + 2) H center in mixed crystal KCl KBr∶OH -. Single crystals of KCl,KBr and different compositions of KCl x Br 1-x solid solutions are growtn with 0.1mol%—0.3mol% KOH in the melt by the Czochralski technique in air.展开更多
基金Supported by National Natural Science Foundation of China(30971860 )The Industry Technology System of Rapseed Construction Projects in China (nyctx-00509)+1 种基金Major projects in Hunan Province (2009FJ1006-1 and 2009FJ1006-3)Open Foundation of Innovation Platform in Hunan College(09K049)~~
文摘[Objective] In order to seek the way of high quality and high yield of oilseed rape.[Method] Soil culture experiment was used in this research.1% （mass fraction） KCl solution was sprayed to the stems and leaves of oilseed rape in full blooming stage while 1.17% （mass fraction） K2SO4 solution and clear water were used for comparison,sampling in initial silique stage and harvest stage were conducted to detect photosynthate,soluble sugar and free amino acids content.[Result] The results showed that compared with spraying clear water,spraying KCl solution increased the contents of chlorophyll a in functional leaves,the contents of free amino acids and soluble sugar in leaves,stems and silique,and the total amounts of them all in initial silique stage but decreased the contents of free amino acids and soluble sugar in leaves and stems,and the total amounts of them all in harvesting stage,increased the average grain yield 10.20%,increased the average contents of oil,oleinic acid and linoleic acid in rapeseed 4.40%,10.60% and 11.40% respectively,decreased the content of protein,erucic acid and glucosinolate in rapeseed 5.10%,9.70% and 3.70% respectively.No significant difference between spraying K2SO4 solution and spraying clear water,significant difference between them all and spraying KCl solution.[Conclusion] The experimental results provided theoretical basis for increasing oilseed rape yield and quality researches.
文摘Tunable color center lasers making use of electron trapping defects such as F A and F + 2 like centers in alkali halide crystals can deliver broadly tunable power over the near infrared 0.8—4.0μm range.The tunable range and their impressive feature of narrow linewidth make these solid state lasers important to molecular spectroscopy,pollution detection,fiber optics communication and other scientific research fields.The( F + 2) H center consisting of an F + 2 center and an neibouring O 2- ion,is one of the most important color centers.In this paper,we will study the preparation,absorption and emission spectra of the ( F + 2) H center in mixed crystal KCl KBr∶OH -. Single crystals of KCl,KBr and different compositions of KCl x Br 1-x solid solutions are growtn with 0.1mol%—0.3mol% KOH in the melt by the Czochralski technique in air.
