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Xinying Zhang Yajing Wang Guirong Huang Fu Feng Xiaoying Liu Rui Guo Fengxue Gu Xin Hu Ziguang Yang Xiuli Zhong Xurong Mei 《Journal of Agronomy and Crop Science》2020,206(2):161-168
Great understanding of the genotypic difference in diurnal stomatal conductance (gs) pattern and the key determinants of the pattern is important for saving water by adopting cultivars appropriately. Fifteen wheat genotypes were studied under different soil conditions and various meteorological conditions with pot cultivation in rain shelter for two years. Genotype and air humidity were found to be key determinants of diurnal gs pattern. All genotypes under low relative humidity (LRH) and most genotypes under high relative humidity (HRH) displayed a gradual decline pattern from morning through the afternoon. Under moderate relative humidity (MRH), all genotypes present a single-peak curve pattern, but they differed in peak time, which may lead to unreliable gs comparison between genotypes and get ostensible contrasting materials. The stomatal conductance was significantly different among genotypes under LRH and the increased gs magnitude is also significantly different when it was compared between LRH and HRH. The present results provide new thinking for selecting and adopting appropriate cultivars with specific stomata traits for the area with various meteorological conditions. 相似文献
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为尽快实现上海崇明奶牛布鲁氏菌病和牛结核病(以下简称"两病")区域净化示范区净化目标,通过建立奶牛场"两病"输入性风险评估和内部风险评估模型,结合奶牛场"两病"流行史,构建了上海市规模化奶牛场"两病"风险评估分级体系;应用该体系将奶牛场划分为高、中、低风险场,为实施分类管理策略奠定基础。运用该体系,对上海市崇明区奶牛场每年开展1次"两病"风险评估分级。经过连续3年的风险分级与管理,崇明区奶牛场的"两病"净化效率得到极大提高,并使崇明奶牛"两病"区域净化示范区顺利通过国家验收,表明该体系符合上海市奶牛"两病"净化工作实际。 相似文献
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A new functional porous carbons (PC-WF) is prepared by activation-pyrolysis method use waste cotton fabrics (WF) as an abundant, cheap and available precursor for removal of Brilliant Crocein (BC-GR) and Cationic Red 2GL (CR-GL) from aqueous phase. The PC-WF was characterized by BET, FTIR, SEM, and XRD techniques, the surface area, total pore volume, average pore diameter was found as 1463.5 m2 g-1, 0.783 cm3 g-1 and 2.14 nm, respectively. The influences on BC-GR and CR-GL adsorption of various experimental factors such as initial concentration and temperature were investigated. Adsorption kinetics was found to be best represented by the pseudo-second order model. The adsorption capacity was 319.8 mg g-1 for BC-GR and 842.5 mg g-1 for CR-GL at 30 °C, respectively. The results indicate that for waste cotton fabrics in particular, the practical application of this process to the production of porous carbon would be possible. 相似文献
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