The climate conditions and farm management methods of maternal plants may influence the quality of the produced seeds of different crops including the strategic crop wheat. They may also affect the nutritional values of seeds when they are used as grains in human nutrition and animal feeding. In this research 100 seed lots of wheat were collected from 100 different farms based on ISTA Rules in the summer of 2020 from different climate conditions in the northeast of Iran. A questionnaire was filled by the farmers on the details of the farm management in the time of seed collecting. The climatic data of the farms were obtained from the nearest synoptic climatological sites. The seed lots were stored under controlled conditions until the assessment of purity, thousand-seed weight, initial seed moisture content, seed health, germination and vigour were done all based on ISTA Rules. The relationship between climatological parameters including temperature, sunshine hours, rainfall, relative humidity, and farm management methods such as fertilizer amount, irrigation, pests and diseases control with the quality of the produced seeds are discussed. The effects of the above parameters on human nutritional values of the seeds including minerals, protein percentages and gluten are also considered. This research could be a beginning of a guideline for where to produce high quality wheat seeds and how to deal with seed production in future challenging climate changes.

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