Climate change and its impact on agriculture are one of the ongoing research areas, and the major task among agricultural managers is to meet the food demand in the future in the context of the production gap of major food grain crops. Literature analysis is carried out to understand the climate resilience of cassava, one of the major tuber crops and is considered to bridge the food demand gap in the near future. Systematic analysis of literature includes influence of changing environmental parameters such as temperature, solar radiation, photoperiod, air humidity, soil water deficit, salinity, elevated ozone and CO₂, combined effects of elevated CO₂ with temperature, water deficit and salinity to the growth and yield of cassava along with its resilience to biotic stresses and its climate suitability. Studies indicate cassava can tolerate a temperature level of up to 40 °C, and thereafter the rate of photosynthesis decreases. Cassava can be cultivated in regions with variations in solar radiation without much compromise in its yield in the context of global dimming of sunshine duration. The resilience to water stress and air humidity variations are adapted by reducing stomatal conductance without influencing the rate of photosynthesis. Cassava has also an inbuilt mechanism to cope with water scarcity by leaf drooping. Already established cassava can tolerate a salinity level of up to 150 mM and the younger ones can tolerate up to a level of 40 mM. Studies also indicate a strong positive influence of elevated CO₂ of up to 700 ppm on the rate of photosynthesis and yield of cassava. Elevated CO₂ enhances the resilience of cassava to water stress and salinity. Similarly, the combined effect of elevated CO₂ and higher temperatures also increases the yield attributes of cassava. These all indicate the resilience of cassava to the changing climate and it ensures as an insurance crop as well as food security crop in the near future. Studies show its resilience to biotic stresses as well. Climate suitability studies also show its suitability in the present locations in the near future as well as its adaptation to other areas. However, the research gap is identified in areas of influence of elevated ozone on growth characteristics of cassava. This study also recommends identifying the extent of tolerance level of cassava to the influence of the combined effect of salinity and elevated CO₂. Further, researchers need to concentrate on developing biotic as well as abiotic stress-tolerant genes in cassava varieties to increase its production irrespective of the changing climatic conditions.

中文翻译：

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木薯（Manihot esculenta Crantz）是气候“智能”作物吗？缩小未来粮食需求缺口的背景下的回顾

气候变化及其对农业的影响是正在进行的研究领域之一，农业管理者的主要任务是在主要粮食作物生产缺口的背景下满足未来的粮食需求。进行了文献分析，以了解木薯（主要块茎作物之一）的气候适应能力，并被认为弥合了近期的粮食需求缺口。文献的系统分析包括变化的环境参数的影响，例如温度，太阳辐射，光周期，空气湿度，土壤水分亏缺，盐度，臭氧和CO ₂升高，CO ₂升高的综合影响温度，水分亏缺和盐分对木薯生长和产量的影响，以及对生物胁迫的适应力和气候适应性。研究表明木薯可以忍受高达40°C的温度水平，此后光合作用的速率降低。在全球日照时间变暗的情况下，木薯可以在太阳辐射变化的地区种植，而产量不会受到很大的影响。在不影响光合作用速率的情况下，通过降低气孔导度来适应水分胁迫和空气湿度变化的适应性。木薯还具有一种内置机制，可以通过下垂来应对缺水问题。已经建立的木薯可以耐受最高150 mM的盐度水平，而年轻的则可以耐受40 mM的水平。木薯的光合作用速率和产量最高可达700 ppm的₂。升高的CO ₂增强了木薯对水分胁迫和盐分的适应能力。同样，CO ₂升高的综合作用而较高的温度也会增加木薯的产量。这些都表明了木薯对不断变化的气候具有复原力，并在不久的将来确保了其作为保险作物和粮食安全作物。研究表明它也具有抵抗生物压力的能力。气候适应性研究还显示了其在不久的将来在当前位置的适应性以及对其他地区的适应性。但是，在臭氧浓度升高对木薯生长特性的影响方面，研究差距尚待确定。这项研究还建议确定木薯的耐受水平对盐度和CO ₂升高综合作用的影响。此外，研究人员需要专注于在木薯品种中开发生物以及非生物胁迫耐受基因，以增加其产量，而不受气候条件变化的影响。