Tag Archive | PCA

Evaluation of genetic diversity in pea (Pisum sativum) based on morpho-agronomic characteristics for yield and yield associated traits – JBES

Pisum sativumHafiz Muhammad Imran Umar, Shoaib-Ur-Rehman, Muhammad Bilal, Syed Atif Hasan Naqvi, Syed Amir Manzoor, Abdul Ghafoor, Muhammad Khalid, Muhammad Tayyab Iqbal, Abdul Qayyum, Farah Ahmad, Malik Ahsan Irshad

Department of Plant Breeding and Genetics, FAST, Bahauddin Zakariya University Multan, Pakistan.

Department of Plant Pathology, FAST, Bahauddin Zakariya University Multan, Pakistan

Department of Forestry, FAST, Bahauddin Zakariya University Multan, Pakistan

Institute of Agri Biotechnology and Genetic Resources, NARC, Islamabad, Pakistan

Department of Biotechnology, Islamia University Bahawalpur, Pakistan

Key words: Genetic diversity, Accessions, PCA, Pisum sativum, Traits.

Abstract

The genetic diversity in 128 exotic pea accessions from diverse origin was determined for four qualitative traits flower color (FC), testa color (TC), cotyledon color (CC) and pod shape (PS) and eleven quantitative attributes i.e., plant Continue reading

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Recongregation of tree species of katerniaghat wildlife sanctuary, Uttar Pradesh, India – JBES

  • Omesh Bajpai1,2, Anoop Kumar1, Ashish K. Mishra1, Nayan Sahu1, Jitendra Pandey2, Soumit K. Behera1, Lal Babu Chaudhary1
  1. Plant Diversity, Systematics and Herbarium Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh-226 001, India
  2. Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, Uttar Pradesh-221 005, India
The study highlights the association pattern of tree species in Katerniaghat Wildlife Sanctuary (KWS) a tropical moist deciduous forest of Terai region of Uttar Pradesh, India. In the present study the ecological exploration has been done to dig out the current statuse of the forest types in the sanctuary area. The cluster and PCA analyses grouped the forests of KWS into three major forest types: sal forest, miscellaneous forest and teak plantation. The different forest type exhibit differences in tree dominance and diversity: sal forest is dominated by Shorea robusta, miscellaneous forest by Mallotus philippensis and teak plantation by Tectona grandis.
The tree species richness has been found 48.07 species ha-1 in teak plantation, 52.63 in miscellaneous forest and 55.35 in sal forest. The tree density has been found 769.23 stem ha-1 in teak plantation, 742.86 in sal forest and 671.05 in miscellaneous forest. The basal cover was observed 1260.75 m2 h-1 in miscellaneous forest, 3533.61 in sal forest and 4933.97 in teak plantation. The diversity indexes (Shannon & Fisher-alpha) have been found maximum (2.666 & 12.390) in miscellaneous forest, moderate (2.152 & 8.677) in sal forest and low (1.134 & 6.482) in teak plantation. The species heterogeneity has been found maximum (0.862) in miscellaneous forest, moderate (0.785) in sal forest and minimum (0.399) in teak plantation. The tree species richness and the basal area have also been found more in comparison with the previous reports from the area. Get the full articles at: http://www.innspub.net/volume-2-number-12-december-2012/

 

Journal Name: Journal of Biodiversity and Environmental Sciences (JBES)

Publisher Name: International network For natural Sciences (INNSPUB)

Investigation of environmental effective factors to distribution of Salvia officinalis (case study: Ghohroud watershed in Kashan, Iran)

DCIM100MEDIA

Salvia officinalis

  • Mojtaba Akhavan Armaki
  1. Young Researchers and Elite club, Karaj Branch, Islamic Azad University, Karaj, Iran

Abstract

This research aims to study the existing relationships between the phytosociology characteristics of Salvia officinalis and environmental factors in order to find the most important factors governing the development of the species in middle Ghohroud rangelands, Iran. Subsequent to indicating the study region, the required flora and environmental data were collected by field survey. Continue reading