Bhatnagar HP, Gupta BB. Effect of Photoperiod on Dry Matter Production and Mineral Uptake by Chir (<I>Pinus roxburghii</I> Sarg.) Seedlings. Indian Forester [Internet]. 1975 Jun. 1 [cited 2025 Aug. 21];101(6):314-9. Available from: https://indianforester.co.in/index.php/indianforester/article/view/26971