Effect of growth regulators, chemical and organic wastes on height of seedling, number of seedlings per seed (extent of polyembryony), percent seedling attain buddable diameter and root length (primary and secondary) of Rangpur lime seedlings

Abstract

The present investigation entitled “Effect of growth regulators, chemical and organic wastes on height of seedling, number of seedlings per seed (Extent of polyembryony), Percent seedling attain buddable diameter and root length (primary and secondary) of Rangpur lime seedlings’’ 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 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 Height of seedling, Number of seedlings per seed (Extent of polyembryony), Percent seedling attain buddable diameter and root length (primary and secondary) were recorded. The maximum height of seedling (60.90 cm), highest number of seedlings per seed (2.67), highest per cent seedlings attain buddable stem diameter (82.57 %), length of roots i.e. primary and secondary (45.20 and 16.43 cm) was obtained by the application of GA3 100 ppm (T2).