alexa Seed Germination and Seedling Survival Percentage of Shorea robusta Gaertn.f. in Buffer Areas of Similipal Biosphere Reserve, Odisha, India | OMICS International | Abstract
ISSN: 2157-7625

Journal of Ecosystem & Ecography
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Research Article

Seed Germination and Seedling Survival Percentage of Shorea robusta Gaertn.f. in Buffer Areas of Similipal Biosphere Reserve, Odisha, India

Mishra RK1*, Dash A2, Pattanaik S3, Nayak PK3 and Mohanty RC3

1Department of Wildlife and Biodiversity Conservation, North Orissa University, Takatpur, Baripada-757 003, India

2Department of Botany, Maharishi College, Saheed Nagar, Bhubaneswar-751 007, India

3Department of Botany, Utkal University, Vani Vihar, Bhubaneswar-751 004, India

*Corresponding Author:
Rabindra Kumar Mishra
Department of Wildlife and Biodiversity Conservation
North Orissa University, Takatpur
Baripada-757 003, India
E-mail: [email protected]

Received Date: December 04, 2014; Accepted Date: December 15, 2014; Published Date: January 02, 2015

Citation: Mishra RK, Dash A, Pattanaik S, Nayak PK, Mohanty RC (2015) Seed Germination and Seedling Survival Percentage of Shorea robusta Gaertn.f. in Buffer Areas of Similipal Biosphere Reserve, Odisha, India. J Ecosys Ecograph 4:153. doi:10.4172/2157-7625.1000153

Copyright: ©2015 Mishra RK, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Seed germination and seedling survival percentage of Shorea robusta was studied in Similipal Biosphere Reserve (SBR) from 2010 to 2011. During the investigation period it was found that larger seeds (12 to 14 mm diameter) exhibited higher germination percentage (70 ± 6.5%) and all the seedlings survived. On the other hand, smaller seeds showed a very low percentage of germination (25 ± 4.24%) and none of the seedlings survived. It was also noticed from the study that the growth phase of the parent tree has a prominent effect on the germination potential of seeds. Juvenile trees with Girth at Breast Height (GBH) 75 to 80 cm as well as over mature (GBH: 91 to105 cm) or senile trees (GBH: 106 to 150 cm) produce seeds with a lesser germination capacity. However, young trees (GBH: 81 to 90 cm) produce seeds with a higher germination potential. Not only these aspects but also the orientation of seeds showed a peculiar phenomenon during natural germination. Maximum percentage (85 ± 12.75%) of seed germination was marked in case of seeds fallen on the forest floor in inverted position in comparison to other seed orientation types i.e. upright and horizontal. The uprightly falling seeds on the forest floor exhibited the minimum percentage (32 ± 6.84%) of germination, while horizontally falling seeds showed an intermediate range of germination percentage. Percentage survival of seedlings also followed the same pattern.

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