National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Pinus gerardiana is commonly called “Chilgoza Pine” which yields small edible seeds. The pine is a vital ecological and economic forestry species having restricted distribution in India. It’s mostly found in two districts of Himachal Pradesh. It’s been observed that the natural regeneration of the species is extremely poor or entirely lacking. This species has erratic and infrequent seed years and dormancy related problems that also reduce the regeneration process in natural habitats. Therefore, different treatments viz. Mechanical scarification, Gibberellic acid (100ppm) and combination of both, where the soaking period is kept 24hours and incubation temperature is kept 250C±10C. The seeds were counted as germinated when radicle was a minimum of two mm long. The effect of pre-sowing treatments on various germination parameters (Germination %, Germination energy, mean daily germination, Peak value, Germination value, Germination index) was calculated and interpreted. After this, germinated seeds were put in root trainers and allowed to grow within the net house. After the establishment of seedlings various seedling assessment parameters (collar diameter, root-shoot length, number of needles) were measured properly for every treatment. Seed Vigour Index was also calculated separately. This study identified T4 (Mechanical Scarification + 100ppm Gibberellic acid) treatment as the best treatment for enhancing germination and seed vigour.
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