Author(s):

NG Jadhav and HS Deshmukh

Abstract: The present investigation entitled “Effect of growth regulators, chemical & organic wastes on germination & seedling diameter of Rangpur lime’’, was conducted at All India Co-ordinated Research Project on Citrus, Department of Horticulture, Mahatma Phule Krishi Vidyapeeth, Rahuri during 2013-14. The field experiment was laid out in Randomized Block Design (RBD) with three replications and ten treatments whereas laboratory experiment was laid out in Completely Randomized Design (CRD) with three replications and ten treatments, comprising pre-soaking treatment of Gibberellic acid (GA₃) at 50 and 100 ppm, Naphthalene acetic acid (NAA) at 50 and 100 ppm, KNO₃ at 1% and 2%, cow urine 50% and 100% and cow dung paste and control. The observation on germination percentage, seedlings diameter were recorded. Among all the treatments, T₂ and GA₃ 100 ppm was the best treatment for germination under laboratory (88.86%) as well as field conditions (69.88%) whereas, the highest seedling diameter (1.67 cm) was recorded in treatment T4, NAA 100 ppm.

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