fa تاثیر کاربرد کودهای زیستی بر شاخص‌های کمی،کیفی و عملکرد سیب‌زمینی (Solanum tuberosum L) رقم کارلیا در دو اقلیم گرم و سرد عمومى General پژوهشي Research <div style="text-align: justify;"><span style="font-size:11pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span style="line-height:115%"><span style="font-family:Arial,sans-serif"><span lang="fa" style="font-size:12.0pt"><span style="line-height:115%"><span b="" lotus="" style="font-family:">این پژوهش با هدف بررسی اثر دو اقلیم گرم و سرد بر ویژگی‌های کیفی، تغذیه‌ای، رشد و عملکرد رقم خوراکی سیب‌زمینی (کارلیا) انجام شد. این آزمایش به شکل بلوک‌های کامل تصادفی با سه تیمار کودی شامل: بایوفارم، مایکوریزا و عدم استفاده از کود (شاهد) در در دو منطقه گرم (بازفت) و سرد (شهرکرد) در سه تکرار اجرا شد. نتایج نشان داد که تیمارهای کودی بر تمامی صفات مورد بررسی، منطقه بر عملکرد غده، وزن مخصوص غده، درصد پروتئین غده، قطر ساقه، تعداد ساقه و وزن خشک بوته و اثر متقابل آن‌ها تنها بر درصد پروتئین غده اثر معنی‌داری داشت. تیمار کودی بایوفارم بیشترین میزان عملکرد غده (94/7 تن در هکتار)، شاخص برداشت (68/3 درصد)، ماده خشک غده (24/5 درصد)، قطر ساقه (1/28 سانتی‌متر)، تعداد ساقه (18/3) و وزن خشک بوته (135 گرم) را ایجاد کرد. تیمار مایکوریزا منجر به بیشترین وزن مخصوص غده (1/17 گرم بر سانتی‌متر مکعب) و تعداد غده در بوته (16/3) شد، درحالی&lrm;که بیشترین میزان قندهای کاهنده (5/68 میلی‌گرم بر گرم) و آمیلوز (35/7 درصد) در تیمار شاهد مشاهده شد. منطقه سرد (شهرکرد) با عملکرد 94/7 تن در هکتار، وزن مخصوص 1/11 گرم بر سانتی‌متر مکعب، تعداد ساقه در بوته 16/8 و وزن خشک بوته 132 گرم برتر بود. این در حالیست که بیشترین قطر ساقه به میزان 1/41 سانتی‌متر از منطقه گرم به دست آمد. بالاترین میزان پروتئین غده در تیمار مایکوریزا برای هر دو منطقه حاصل شد. به‌طور کلی، ترکیب منطقه سرد و کود بایوفارم بیشترین اثر مثبت را بر صفات مورد مطالعه داشت.&nbsp;</span></span></span></span></span></span></span></span><br> &nbsp;</div> <div style="text-align: justify;">Introduction: Sustainable agriculture, as a modern approach, plays a significant role in enhancing productivity and conserving natural resources. In this context, climate, as one of the fundamental environmental factors, has a considerable impact on the growth and&nbsp; agronomicperformance of crop plants. Variations in climatic conditions can influence plant growth processes and lead to fluctuations in production levels. On the other hand, the use of biofertilizers as a suitable alternative to chemical inputs has gained importance in improving production efficiency and reducing environmental impacts. These inputs can contribute effectively to increasing yield by enhancing the nutritional status of plants and stimulating biological activity in the soil. The interaction between climatic conditions and the application of biofertilizers is considered one of the key factors determining the success of production systems. Therefore, simultaneous evaluation of the effects of climate and biofertilizers on crop performance is of particular importance. This study aimed to determine how climate and fertilizer treatments influence potato performance under field conditions.<br> &nbsp;<br> Materials and Methods: A field experiment was conducted in 2025 to evaluate the effects of two contrasting climates, i.e. warm and cold, on the quality, nutritional, growth, and yield traits of the table potato cultivar &lsquo;Karlia.&rsquo; The experiment was arranged in a randomized complete block design with three fertilizer treatments: Biofarm, mycorrhiza, and an unfertilized control, at two locations (in southwest of Iran) representing warm conditions (Bazoft) and cold conditions (Shahrekord), with three replications. Before planting, potassium sulfate was applied according to soil test results and crop requirements. In the Biofarm treatment, seed tubers were immersed for 15 minutes in a solution prepared from the biofertilizer (5 L per 100 L water) and then planted. Mycorrhizal inoculum was applied at a rate of 10 g m-2 at planting, placed in a band beneath the tubers.&nbsp;<br> <br> Results: The results showed that fertilizer treatments had a significant effect on all evaluated traits, location had a significant effect on tuber yield, tuber specific gravity, tuber protein percentage, stem diameter, number of stems, and plant dry weight, and their interaction was significant only for tuber protein percentage. Biofarm fertilizer produced the highest tuber yield (94.73 tons ha-1), harvest index (68.33%), tuber dry matter (24.54%), stem diameter (1.28 cm), number of stems (18.33), and plant dry weight (135.81 g). The mycorrhiza treatment resulted in the highest tuber specific gravity (1.17 g cm-&sup3;) and number of tubers per plant (16.33), whereas the greatest amounts of reducing sugars (5.68 mg g-1) and amylose (35.73%) were observed in the control treatment. The cold region (Shahrekord) was superior, with a tuber yield of 94.69 tons ha-1, specific gravity of 1.107 g cm-&sup3;, 16.88 stems per plant, and plant dry weight of 132.5 g, while stem diameter was higher in the warm region (Bazoft), reaching 1.41 cm. The highest tuber protein content in both regions was obtained under the mycorrhiza treatment.<br> <br> Discussions: The results of this study showed that both fertilizer treatments and climatic conditions strongly influenced the growth, yield, and quality of the Karlya table potato cultivar. Fertilizer treatments significantly affected all measured&nbsp;traits, while location mainly influenced tuber yield, specific gravity, protein percentage, stem diameter, number of stems, and plant dry weight. The interaction between fertilizer and location was significant only for tuber protein content, highlighting its sensitivity to both climate and nutrition.<br> Biofarm biofertilizer produced the highest tuber yield, harvest index, tuber dry matter, stem diameter, number of stems, and plant dry weight, indicating its high potential for improving productivity and vegetative growth. Mycorrhiza, in turn, resulted in the greatest tuber specific gravity, number of tubers per plant, and the highest tuber protein content in both regions, emphasizing its role in enhancing tuber formation and nutritional quality. In contrast, the control treatment produced the highest reducing sugar and amylose contents, which were associated with lower yield. Climatically, the cold region (Shahrekord) outperformed the warm region (Bazoft) in tuber yield, specific gravity, number of stems, and plant dry weight, confirming that cooler conditions are more favorable for Karlya performance.&nbsp;<br> Conclusions: Overall, the findings suggest that Biofarm, especially in cold regions, is suitable for maximizing yield and biomass, while mycorrhiza is more effective for improving tuber quality and protein content. The use of these biological fertilizers can partially replace chemical fertilizers, enhance productivity and quality, and contribute to the goals of sustainable potato production<br> <br> &nbsp;</div> آمیلوز, بایوفارم, شاخص برداشت, قندهای احیائی, مایکوریزا. Amylose, Biofarm, Harvest Index, Mycorrhiza, Reducing Sugars 45 61 http://jcpp.iut.ac.ir/browse.php?a_code=A-10-2091-21&slc_lang=fa&sid=1 Mahmoud reza Tadayon محمودرضا تدین mrtadayon@yahoo.com Yes Agronomy Department, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran Nasrin Abbasi dehkordi نسرین عباسی دهکردی n.a104104@gmail.com No Agronomy Department, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran گروه زراعت، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران Mohammad Rafieiolhossaini محمد رفیعی الحسینی m_rafiee_1999@yahoo.com No Agronomy Department, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran گروه زراعت، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران Mojtaba Karimi مجتبی کریمی mkarimi490@gmail.com No Agronomy Department, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran گروه زراعت، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد، ایران