Optimization of potato varieties and their sowing time for cultivation under poplar (Populus deltoides Bartr. ex Marsh.) based agrisilviculture system
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Authors
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Ankurdeep Preety
Department of Forestry & N.R., PAU Ludhiana-141 004. Punjab, India.
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R.I.S. Gill
Department of Forestry & N.R., PAU Ludhiana-141 004. Punjab, India.
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Baljit Singh
Department of Forestry & N.R., PAU Ludhiana-141 004. Punjab, India.
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A.S. Dhatt
Department of Vegetable Science, PAU Ludhiana-141 004. Punjab, India.
Keywords:
Agroforestry, intercropping, poplar, potato varieties, time of sowingAbstract
The performance of different varieties of potato (Solanum tuberosum L.) was studied in the alleys of poplar (Populus deltoides Bartr. ex Marsh.) trees spaced at 5 x 4 m. The treatments included three potato varieties viz., Kufri Pukhraj, Kufri Badshah and Kufri Jyoti, sown during four times viz., Mid-October, Mid-November, Mid-December and Mid-January. The growth and yield attributes of potato were significantly affected by the treatments. The maximum yield was obtained in Kufri Badshah variety sown in Mid-November (247.29 q/ha), which also showed maximum dry matter content of tubers (21.24 %), an important attribute required for processing purposes of potatoes. The reduction in yield was minimum in Kufri Pukhraj upon planting in Mid-December (24.88 %) under poplar block and open field, thus this combination of treatments showed less effect of shading under agroforestry system. However, the best combination of sowing time and variety was observed to be Mid-November sowing time and Kufri Badshah variety.
