Environmental conditions can affect seed characteristics in a variety of ways during their development and maturation. This study examined the effects of environmental factors on two aspects of seed quality, namely seed health and seed vigour. The samples were taken from five regions of rice seed production. Seed germination and seedling growth were tested to gauge seed vigour. In order to evaluate seed health, the potato dextrose agar method was used to test for seed-borne fungi contamination. According to the assessment of seed lots, changes in the environment accounted for at least 61% of variation in fungal contamination and at least 74% of variation in germination characteristics. According to stepwise regression and comparative performance analysis, the optimum amounts of minimum temperature (20.56℃), daily sunny hours (8.31), daily precipitation (0.085 mm) and daily relative humidity (79.37%) were required to achieve the best possible values for percent of normal seedling (99.39%), length of seedling (15.14 cm) and percent of germination (99.84%). The gaps between the potential values and seed production under unfavourable environmental conditions were 25.49%, 25.57 mm and 6.8% for normal seedling percentage, length of seedling and germination percentage, respectively. The results of this experiment indicate that low precipitation and relative humidity, as well as an ample supply of sunlight and high altitude in Rostam-Abad, had a significant impact on the fungi in the seeds, which resulted in better seed health and greater seed quality.

环境条件可以在种子发育和成熟过程中以多​​种方式影响种子特性。本研究考察了环境因素对种子质量两个方面的影响，即种子健康和种子活力。样品取自五个水稻种子生产地区。测试种子发芽和幼苗生长以测定种子活力。为了评估种子健康，使用马铃薯葡萄糖琼脂法测试种子传播的真菌污染。根据对种子批次的评估，环境变化至少占真菌污染变异的 61%，至少占发芽特性变异的 74%。根据逐步回归和比较性能分析，最低气温（20.56℃）、日晴天时数（8.31）、需要每日降水量（0.085 毫米）和每日相对湿度（79.37%）才能达到正常幼苗百分比（99.39%）、幼苗长度（15.14 厘米）和发芽百分比（99.84%）的最佳值。不利环境条件下，正常苗率、苗长和发芽率的潜力值与种子产量的差距分别为25.49%、25.57 mm和6.8%。该实验的结果表明，罗斯塔姆-阿巴德的低降水量和相对湿度，以及充足的阳光和高海拔，对种子中的真菌有显着影响，从而导致更好的种子健康和更高的种子质量. 需要 37%) 才能达到正常幼苗百分比 (99.39%)、幼苗长度 (15.14 cm) 和发芽百分比 (99.84%) 的最佳值。不利环境条件下，正常苗率、苗长和发芽率的潜力值与种子产量的差距分别为25.49%、25.57 mm和6.8%。该实验的结果表明，罗斯塔姆-阿巴德的低降水量和相对湿度，以及充足的阳光和高海拔，对种子中的真菌有显着影响，从而导致更好的种子健康和更高的种子质量. 需要 37%) 才能达到正常幼苗百分比 (99.39%)、幼苗长度 (15.14 cm) 和发芽百分比 (99.84%) 的最佳值。不利环境条件下，正常苗率、苗长和发芽率的潜力值与种子产量的差距分别为25.49%、25.57 mm和6.8%。该实验的结果表明，罗斯塔姆-阿巴德的低降水量和相对湿度，以及充足的阳光和高海拔，对种子中的真菌有显着影响，从而导致更好的种子健康和更高的种子质量. 正常苗率、苗长和发芽率分别为 57 mm 和 6.8%。该实验的结果表明，罗斯塔姆-阿巴德的低降水量和相对湿度，以及充足的阳光和高海拔，对种子中的真菌有显着影响，从而导致更好的种子健康和更高的种子质量. 正常苗率、苗长和发芽率分别为 57 mm 和 6.8%。该实验的结果表明，罗斯塔姆-阿巴德的低降水量和相对湿度，以及充足的阳光和高海拔，对种子中的真菌有显着影响，从而导致更好的种子健康和更高的种子质量.