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<p>The availability of disease-free, high-quality seed material is crucial for improving potato productivity in India. Microplants of potato, being disease-free and pest-free, are used to produce minitubers when planted in various media, including soil and soilless. The study was conducted in an insect-proof net house to evaluate the performance of microplants of two potato varieties; Kufri Pukhraj and Kufri Himalini grown in soil and soilless media (cocopeat based media). Initial growth observations (35 days after planting) indicated that soilless led to better vegetative growth. However, at 55 and 70 days after planting, soil-grown plants exhibited more growth. Yield parameters such as total tuber number and tuber weight per square meter showed that Kufri Pukhraj outperformed comparative to Kufri Himalini. While observing total number of tubers in media, soilless yielded lesser tuber numbers and dry matter than soil. Significantly higher value of Harvest Index was obtained from soilless than the soil. There is marked increase in the net income and benefit cost ratio by growing microplant in soil (6.95) which was 4.54 times less in microplant grown in soilless culture under insect proof net house. The technology has a huge potential for adoption by small farmers for maintaining the quality of their own seed, where a smaller net house will enable them to harvest the larger number of tubers. The technology shows significant potential for adoption by small farmers, allowing them to maintain high seed quality through soilless and increase tuber yields in smaller net houses (Soil).</p>

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Influence of Growing Media on the Performance of In Vitro Potato Varieties: Evaluation of Growth, Yield, and Harvest Index under an Insect-Proof Net House in the Northwestern Plains of India

  • 期刊论文

  • 发表日期：

    2025年9月19日

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  • Khushdil Bharti,
  • Sugani Devi,
  • Sarvjeet Kukreja,
  • Sukhwinder Singh

摘要

The availability of disease-free, high-quality seed material is crucial for improving potato productivity in India. Microplants of potato, being disease-free and pest-free, are used to produce minitubers when planted in various media, including soil and soilless. The study was conducted in an insect-proof net house to evaluate the performance of microplants of two potato varieties; Kufri Pukhraj and Kufri Himalini grown in soil and soilless media (cocopeat based media). Initial growth observations (35 days after planting) indicated that soilless led to better vegetative growth. However, at 55 and 70 days after planting, soil-grown plants exhibited more growth. Yield parameters such as total tuber number and tuber weight per square meter showed that Kufri Pukhraj outperformed comparative to Kufri Himalini. While observing total number of tubers in media, soilless yielded lesser tuber numbers and dry matter than soil. Significantly higher value of Harvest Index was obtained from soilless than the soil. There is marked increase in the net income and benefit cost ratio by growing microplant in soil (6.95) which was 4.54 times less in microplant grown in soilless culture under insect proof net house. The technology has a huge potential for adoption by small farmers for maintaining the quality of their own seed, where a smaller net house will enable them to harvest the larger number of tubers. The technology shows significant potential for adoption by small farmers, allowing them to maintain high seed quality through soilless and increase tuber yields in smaller net houses (Soil).