High Zinc Tolerance
Full Form of HZT
What is HZT?
High Zinc Tolerance (HZT) refers to the genetic or physiological ability of crop plants to maintain optimal growth and yield in soils with elevated zinc concentrations. In the Indian agricultural context, HZT is a critical trait studied for developing varieties suited to zinc-rich soils caused by industrial pollution or excessive micronutrient fertilizer application. Research on HZT falls under plant breeding and soil science, particularly in regions like Punjab and Haryana where zinc accumulation in irrigation water has been reported. The trait is evaluated through hydroponic screening and field trials by institutions such as the Indian Council of Agricultural Research (ICAR) and state agricultural universities. HZT is distinct from zinc efficiency, which deals with low-zinc soils, and is relevant for biofortification programs aiming to increase zinc content in staple crops like wheat and rice. Understanding HZT helps farmers select cultivars that avoid toxicity symptoms such as stunted roots and chlorosis. This concept appears in undergraduate agriculture syllabi and competitive exams like ICAR JRF, where questions on micronutrient management and abiotic stress tolerance are common. By promoting HZT, India can enhance crop resilience and ensure food safety in areas with zinc contamination, aligning with sustainable agricultural practices under the National Mission for Sustainable Agriculture.
HZT का फुल फॉर्म
उच्च जिंक सहनशीलता
Example
The new wheat variety PBW-825 was selected for its HZT, allowing it to flourish in zinc-affected districts of Haryana.