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冬季进行合理的饮食养生,不仅补充冬季所需要的营养维持身体新陈代谢正常运转,还可以增强身体抵抗力和免疫力预防中风、心脏病、感冒等疾病的发生。 相似文献
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Production of bacterial blight resistant lines from somatic hybridization between Oryza sativa L. and Oryza meyeriana L 总被引:1,自引:0,他引:1
Novel bacterial blight (BB) resistance gene(s) for rice was (were) introduced into a cultivated japonica rice variety Oryza sativa (cv. 8411), via somatic hybridization using the wild rice Oryza meyeriana as the donor of the resistance gene(s). Twenty-nine progenies of somatically hybridized plants were obtained. Seven somatically hybridized plants and their parents were used for AFLP (amplified fragment length polymorphism) analysis using 8 primer pairs. Results confirmed that these plants were somatic hybrids containing the characteristic bands of both parents. The morphology of the regenerated rice showed characters of both O.sativa and O.meyeriana. Two somatic hybrids showed highest BB resistance and the other 8 plants showed moderate resistance. The new germplasms with highest resistance have been used in the rice breeding program for the improvement of bacterial blight resistance. 相似文献
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柑桔树采果后,科学管理,不仅可增强树势,提高树体对不良环境的抵抗力,而且能促进花芽分化,使翌年柑桔优质丰产。因此,在管理技术上应采取以下措施: 相似文献
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柠檬等柑橘类水果以富含维生素C著称。大家都听说过维生素C有美容、增强身体抵抗力等功效吧,这种功效有科学依据吗?人体摄取多少维生素C为最佳? 相似文献
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幼狗各器官尚未发育成熟,其抵抗力和适应能力都相对较弱,容易发生各种疾病。此时是饲养管理中的重要时期。对幼狗的饲养管理应注意以下几点: 相似文献