[Objective] The paper was to preliminarily investigate the low yield reason of Camellia oleifera caused by fruit and flower dropping in Dehong prefecture. [Method]Pollen viability of C. oleifera was determined using I...[Objective] The paper was to preliminarily investigate the low yield reason of Camellia oleifera caused by fruit and flower dropping in Dehong prefecture. [Method]Pollen viability of C. oleifera was determined using I-KI and TTC （2,3,5-triphenyl tetrazolium chloride） method, the germination rate of pollen was determined by in vitro culture method, the pollen tube growth was observed by the fluorescent microscope through aniline blue dyeing, and the effects of different pollination methods on fruit setting rate of C. oleifera was analyzed. [Results] The pollen viability and the quantity of pollen tube of C. oleifera with good fruiting were significantly higher than the plants with poor fruiting, but their pollen germination rate had no significant differences; cross pollination was conducive to fruiting setting of C. oleifera. [Conclusion] The growth and development condition of C. oleifera pollen had important effect on the yield of C. oleifera in Dehong prefecture.展开更多
Dehong Dai and Jingpo Autonomous Prefecture is located in western Yunnan.Due to special natural environment and multi-ethic settlement,the unique cultural environment and folk customs have been formed in this area.Thi...Dehong Dai and Jingpo Autonomous Prefecture is located in western Yunnan.Due to special natural environment and multi-ethic settlement,the unique cultural environment and folk customs have been formed in this area.This paper investigated on and collated the traditional cultures and edible spices in native minorities of Dehong.In addition,the special spices those form the special flavor and their application in food with ethic characteristics were proposed.展开更多
Based on the dynamic observation of Xylotrechus quadripes Chevrolat for consecutive three years, the living habits and damage status of X. quadripes in Dehong Prefecture, Yunnan Province were cleared, to provide the b...Based on the dynamic observation of Xylotrechus quadripes Chevrolat for consecutive three years, the living habits and damage status of X. quadripes in Dehong Prefecture, Yunnan Province were cleared, to provide the basis for its prevention and control. The results showed that the larvae and pupae of X. quadripes occurred from April to September in Dehong Prefecture;the adults occurred from September to November;the eggs occurred from December to March of the next year. Different measures could be adopted according to different periods, so as to achieve the best control effect.展开更多
The Dehong buffalo( D),F1 hybrids of Dehong buffalo × Murrah buffalo( MD) and F1 hybrids of Dehong × Nili buffalo( ND) as the experimental animals to investigate their fatty acid composition and amino acid c...The Dehong buffalo( D),F1 hybrids of Dehong buffalo × Murrah buffalo( MD) and F1 hybrids of Dehong × Nili buffalo( ND) as the experimental animals to investigate their fatty acid composition and amino acid content. Five of each buffalos were bred by freely grazing and slaughtered at 35. 8-month old age to investigate the fatty acid composition and amino acid content in beef of Dehong buffalo,MD buffalo and ND buffalo. The results showed that,saturated fatty acid content of Dehong buffalo( 44. 33%) was significantly higher than that of ND buffalo( 41. 39%) and MD buffalo( 41. 48%)( P 【 0. 05),and the latter two were not significantly different( P 】 0. 05). The content of PUFA in Dehong buffalo( 53. 90%) was significantly lower than ND( 56. 83%) and MD( 56. 83%)( P 【0. 05),however,the n- 6∶ n- 3( 4. 25) of Dehong buffalo was significantly higher than ND( 3. 14) and MD( 3. 52)( P 【 0. 05). The content of amino acids in muscle was not significantly different between Dehong buffalo,MD buffalo and ND buffalo( P 】 0. 05),while the acidic amino acid content of Dehong buffalo was higher than that of MD buffalo and ND buffalo.展开更多
A new species of river loach, Schistura megalodon sp. nov., is described from the Irrawaddy basin in Yingjiang County, Dehong Autonomous Prefecture, Yuunan Province, China. The following combination of diagnostic char...A new species of river loach, Schistura megalodon sp. nov., is described from the Irrawaddy basin in Yingjiang County, Dehong Autonomous Prefecture, Yuunan Province, China. The following combination of diagnostic characters serve to distinguish it from all other congeners in the given zoogeographical region： a large processus dentiformes in the upper jaw, a short pre-anus length of 65.4%-66.3% of SL, long paired fins （pectoral： 20.8%-24.2% of SL; pelvic： 17.9%-20.6% of SL）, a wide body of 9.7%-11.3% of SL at anal fin origin, an incomplete lateral line, the absence of an orbital lobe, and a broad and distinct basicaudal bar with forward extensions.展开更多
基金Supported by National Key Technology Support Program"Integration and Demonstration of Camellia oleifera High Yield Cultivation Technology of Southwest High Mountain"(2009BADB1B08)Key New Product Development Projects of Yunnan Province"Breeding of Good Varieties of Camellia oleifera"(2009BB004)~~
文摘[Objective] The paper was to preliminarily investigate the low yield reason of Camellia oleifera caused by fruit and flower dropping in Dehong prefecture. [Method]Pollen viability of C. oleifera was determined using I-KI and TTC （2,3,5-triphenyl tetrazolium chloride） method, the germination rate of pollen was determined by in vitro culture method, the pollen tube growth was observed by the fluorescent microscope through aniline blue dyeing, and the effects of different pollination methods on fruit setting rate of C. oleifera was analyzed. [Results] The pollen viability and the quantity of pollen tube of C. oleifera with good fruiting were significantly higher than the plants with poor fruiting, but their pollen germination rate had no significant differences; cross pollination was conducive to fruiting setting of C. oleifera. [Conclusion] The growth and development condition of C. oleifera pollen had important effect on the yield of C. oleifera in Dehong prefecture.
文摘Dehong Dai and Jingpo Autonomous Prefecture is located in western Yunnan.Due to special natural environment and multi-ethic settlement,the unique cultural environment and folk customs have been formed in this area.This paper investigated on and collated the traditional cultures and edible spices in native minorities of Dehong.In addition,the special spices those form the special flavor and their application in food with ethic characteristics were proposed.
文摘Based on the dynamic observation of Xylotrechus quadripes Chevrolat for consecutive three years, the living habits and damage status of X. quadripes in Dehong Prefecture, Yunnan Province were cleared, to provide the basis for its prevention and control. The results showed that the larvae and pupae of X. quadripes occurred from April to September in Dehong Prefecture;the adults occurred from September to November;the eggs occurred from December to March of the next year. Different measures could be adopted according to different periods, so as to achieve the best control effect.
基金Supported by Science and Technology Program of Yunnan Province(2004NG04)
文摘The Dehong buffalo( D),F1 hybrids of Dehong buffalo × Murrah buffalo( MD) and F1 hybrids of Dehong × Nili buffalo( ND) as the experimental animals to investigate their fatty acid composition and amino acid content. Five of each buffalos were bred by freely grazing and slaughtered at 35. 8-month old age to investigate the fatty acid composition and amino acid content in beef of Dehong buffalo,MD buffalo and ND buffalo. The results showed that,saturated fatty acid content of Dehong buffalo( 44. 33%) was significantly higher than that of ND buffalo( 41. 39%) and MD buffalo( 41. 48%)( P 【 0. 05),and the latter two were not significantly different( P 】 0. 05). The content of PUFA in Dehong buffalo( 53. 90%) was significantly lower than ND( 56. 83%) and MD( 56. 83%)( P 【0. 05),however,the n- 6∶ n- 3( 4. 25) of Dehong buffalo was significantly higher than ND( 3. 14) and MD( 3. 52)( P 【 0. 05). The content of amino acids in muscle was not significantly different between Dehong buffalo,MD buffalo and ND buffalo( P 】 0. 05),while the acidic amino acid content of Dehong buffalo was higher than that of MD buffalo and ND buffalo.
文摘A new species of river loach, Schistura megalodon sp. nov., is described from the Irrawaddy basin in Yingjiang County, Dehong Autonomous Prefecture, Yuunan Province, China. The following combination of diagnostic characters serve to distinguish it from all other congeners in the given zoogeographical region： a large processus dentiformes in the upper jaw, a short pre-anus length of 65.4%-66.3% of SL, long paired fins （pectoral： 20.8%-24.2% of SL; pelvic： 17.9%-20.6% of SL）, a wide body of 9.7%-11.3% of SL at anal fin origin, an incomplete lateral line, the absence of an orbital lobe, and a broad and distinct basicaudal bar with forward extensions.
