摘要：[Objective] The aim was to clone the up-regulated expression gene of rice induced by Rhizoctonia solani.[Method] The EST fragment K16 obtained by suppression subtraction hybridization（SSH）was cloned and confirmed by reverse transcription-polymerase chain reaction（RT-PCR）.Then RT-PCR products were cloned into the PMD18-T vector and *** functions of the sequence were predicted with bioinformatics method.[Result] A 1 079 bp gene was *** gene encoded a protein with 236 amino *** protein contains many motif sites,two WRKY domains and a C2H2 zinc finger *** gene showed high identities with WRKY8,WRKY24 and WRKY30 gene of rice.[Conclusion] The up-regulated expression gene induced by *** was representative WRKY family *** gene could play an important role on rice sheath blight resistance.

摘要：[Objective] This study aimed to clone the gene atp6 from rice mitochondria, construct the binary expression vector 35S ：： Rflb5＇ ：： atp6 and obtain transgenic plants with atp6. [Method] The special primers were designed according to the sequence of target gene. With the TRIzol method the total RNA was extracted from rice seedlings and reverse transcripted to cDNA. The ORF of atp6 was amplified by PCR, and ligated to binary expression vector pCAMBIA1302 which contains se- quence of signal peptide from mitochondria （Rflb5＇）. The recombinant plasmid was then transformed into rice callus mediated by Agrobacterium. [Result] The binary expression vector 35S ：： Rflb5＇ ：： atp6 was constructed, and positive transgenic plants were obtained. [Conclusion] This study lays foundation for understanding influence of atp6 gene over-expression on rice growth.

摘要：[Objective] This study was conducted to analyze the difference in the general combining ability of yield traits of rice varieties in China and South Asia and to provide reference for the introduction and utilization of rice restorer lines from South Asia. [Method] A total of 111 hybrids were obtained by crossing 37 restorer lines in China and South Asia with Gang 46A, Lu 98A and Dexiang 074 following a NC II design. The combining ability of eight yield traits of the hybrids was analyzed in Luzhou and Deyang bases of Sichuan Province. [Result] In both bases, the eight yield traits had significant or extremely significant differences between the combina- tions, restorer lines, sterile lines or sterile line^restorer line, suggesting that there were d^erences in the genetic effects between the combinations or lines. The gen- eral combining ability （GCA） variances were all higher than special combining ability （SCA） variances in parents, which indicated that these traits were affected by gene additive effect. Restorer lines contributed more to F1 generation than male sterile liens in the eight yield traits. Nine restorer lines from India and Bangladesh were ranked in the top 15 lines with high GCA in the number of productive tillers in both bases. [***] There was significant differences in the combining ability in the eight yield traits between the restorer lines from China and South Asia. The lines from India and Bangladesh were better than those from China in the GCA of the number of productive tillers, and the lines from China were better than those from India and Bangladesh in the GCA of other traits.

摘要：Objective The aim was to elucidate the effects of N rates on rice canopy microclimate and community health so as to provide a sci- entific basis for studying the production potential in irrigated rice with healthy canopy. Method The effects of rice population structure traits under different N rates on rice canopy temperature, relative humidity （ RH）, light transmittance and sheath blight were studied by using Sunscan canopy analysis system and HOBO（ Pro Temp/RH IS logger）. Result The results showed that leaf area index, plant height and tiller number had significant effects on canopy cooling, RH enhancing and light reducing. Extremely significant multiple linear regression relationships existed among canopy day temperature, day RH, LAI and tiller number, and among light transmittance, tiller number and plant height. At flowering stage, per unit LAI could result in a day-maximum-temperature （Tmax） deceasing of 0.87℃ and a day-minimum-RH （RHmin） enhancing of 2.5% within canopy. Similarly, 100 plants per ms could respectively cause a Tmax deceasing of 1.23℃ and an RHmin enhancing of 3.3% in rice canopy. And per 10 cm plant height and 100 plants per m^2 could respectively reduce 9.3% and 7.8% of light in canopy. Conclusion Sheath blight disease index was significantly enhanced as the canopy day temperature decreased, day RH increased and light transmittance reduced. Bigger canopy from higher nitrogen level treatment leads to a more stable canopy microclimate with little changes in temperature and RH during day and night, which has the risk of worsening canopy health. Thus, moderately controlling the space development of canopy is the basis of constructing healthy canopy in rice.

摘要：本文主要阐述一种无损数据压缩算法在网络传输方面的进一步研究,作为网络传输中的数据包,算法设计中不但要考虑方法的有效性,同时还必须充分考虑工程应用的可靠性,而防止误码扩散是算法可靠性设计中要解决的首要问题。本文在数据传输可靠性的阐述中,着重分析了有意义范围内的图像特征,利用可靠性自适应的预测方案,可得到较好的去相关效果,从而达到增强算法工程可靠性的特点。

摘要：文章论述了闭合性踝关节骨折术前消肿的主要治疗,认为对于肿胀的控制应采取综合性的预防和治疗措施,提出可为闭合性踝关节骨折患者设计一种融冰敷疗法、支具固定抬高和中药治疗三者于一体的新型踝关节骨折消肿复合支具以缩短术前消肿疗程。

摘要：在大田试验条件下,设计5个不同化肥与紫云英配比处理,连续2年在江西省丰城市研究了养分总供应量相同时紫云英NK代替等量化肥NK对水稻养分吸收及其产量的影响.结果表明:等氮钾条件下,与单施化肥相比,20%～40%紫云英氮钾替代等量化肥氮钾有利于土壤中有机质含量的提高,促进水稻地上部对氮钾的吸收与累积,从而有利于水稻产量的提高.但是,60%～80%紫云英氮钾替代化肥氮钾,水稻地上部氮钾含量和水稻产量显著下降.因此,化肥/紫云英适当配比施用有利于提高土壤有机质含量,促进水稻对氮钾养分的吸收累积,最终提高水稻产量.