The physical chemical indicators relate to the abiotic environment of an ecosystem.
物理化学指标是检测生态系统的非生物环境的指标。
Drought, low temperature and high salt are adverse abiotic environment that greatly affected the growth of plant and the productivity and quality of crops.
干旱、低温和高盐是目前影响农作物的主要非生物限制因子，它严重影响作物的生长发育，以及产量和品质。
Heredity is controlled by genes, but their expression is turned on and off throughout life depending upon biotic and abiotic factors in environment.
作物基因表达一方面受到遗传基因的控制，另一方面，环境中的生物与非生物因素对基因表达也起到重要的调节作用。
Abiotic stresses, such as drought, salinity, extreme temperatures, chemical toxicity, and oxidative stress, are serious threats to agriculture and result in the deterioration of the environment.
干旱、盐害、极端温度、化学毒害和氧化胁迫等非生物胁迫严重影响农业生产，并导致环境退化。
Soil salination is one of the major abiotic-stress that influences agricultural production and environment.
土壤盐渍化是影响农业生产和生态环境的主要非生物逆境之一。
Soil salination is one of the major abiotic-stress that influences agricultural production and environment.
土壤盐渍化是影响农业生产和生态环境的主要非生物逆境之一。
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