Effect of Chemical Pre-Treatments on Germination and Seedling Growth in <I>Horsfieldia glabra</I> Warb. and <I>Semecarpus prainii</I> King

Ajit Arun Waman; Pooja Bohra; Debabrata Basantia

doi:10.36808/if/2018/v144i1/121299

Effect of Chemical Pre-Treatments on Germination and Seedling Growth in Horsfieldia glabra Warb. and Semecarpus prainii King

Authors

Ajit Arun Waman ICAR- Central Island Agricultural Research Institute, Port Blair, Andaman and Nicobar Islands
Pooja Bohra ICAR- Central Island Agricultural Research Institute, Port Blair, Andaman and Nicobar Islands
Debabrata Basantia Krishi Vigyan Kendra, Nimbudera, Andaman and Nicobar Islands

DOI:

https://doi.org/10.36808/if/2018/v144i1/121299

Keywords:

Genetic Resources, Regeneration, Utilization, Wild Cashew, Wild Nutmeg.

Abstract

The present investigation was undertaken to standardize seed germination pre-treatments in Horsfieldia glabra and Semecarpus prainii. Results revealed significant differences among the treatments for various germination related parameters in both the species. Seed treatment with GA₃ (100 mg/L for 24 h) was found to be most congenial for obtaining maximum germination percentage (78.79%), lowest T₅₀ value (27.17 d), and highest seedling collar thickness (4.02 mm) in H. glabra. Among the treatments studied, water soaking for 2 h was found to improve germination in both cultivated cashew (100.00%) and wild cashew (S. prainii, 35.52%). Interestingly, treatment of cultivated cashew seeds with acetone supported better seedling growth, while this treatment failed to induce any germination in wild cashew. Hence, seed treatment with GA₃ (100 mg/L for 24 h) and water soaking for 2 h could be recommended for obtaining seedlings in large number in H. glabra and S. prainii, respectively. These findings could support habitat enrichment programmes and facilitate the conduct of systematic studies in these potential crop wild relatives.

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