Tag Archive | cluster analysis

Morpho-agronomic variability and GxE interactions of Manila Hemp (Musa textilis L. Née) genotypes grown in varying agroecozones in Southern Mindanao, Philippines – IJAAR

Musa textilisFlorence Zapico, Catherine Hazel Aguilar, Marianita Eroy, Joey Real Marie Barbosa, Deocyth Sarsalejo and Sittie Rokaiya Banisil

Science Department, College of Natural Sciences and Mathematics, Mindanao State University- Fatima, General Santos City 9500 Philippines

Philippine Coconut Authority- Region 11, Bago Oshiro, Tugbok District, Davao City, 8000 Philippines

Key words: Musa textilis L. Nee, principal component analysis, GxE interaction, Pearson’s correlation, cluster Analysis.

Abstract

Taximetric statistical methods were carried out on morpho-agronomic traits from three Manila hemp (Philippine abaca) varieties planted in three locations in Southern Mindanao, Philippines. Principal Component analysis (PCA) resulted in the extraction of five principal components which collectively accounted for 99.85% of total variance. Continue reading

Floristic survey of weeds and rangeland plants in Khalatposhan station of Tabriz county – JBES

Rangelands PlantsElham Abbasvand, Jalil Shafagh-Kolvanagh, Sirous Hassannejad

Department of Plant Eco-Physiology, University of Tabriz, Iran

Key words: Cluster Analysis, Rangelands Plants, Weeds, TWINSPAN.

Abstract

In order to ordination of weeds and rangeland plants, investigations were done in Khalatposhan rangeland of Tabriz county in 2013. Vegetation in each section was sampled by 176 plots (0.5 m × 0. 5 m) in grid method (20 m × 40 m). Continue reading

Morphological traits of control-pollinated fruits in African plum (Dacryodes edulis (G.Don).Lam.) using multivariate statistical techniques

02_12_miraculinJ.T. Makueti, Z. Tchoundjeu, A. Kalinganire, B. A. Nkongmeneck, L. Kouodiekong, E. Asaah1 and A. Tsobeng

World Agroforestry Centre, BP 16317, Yaounde, Cameroon

World Agroforestry Centre, ICRAF-WCA/Sahel, BPE 5118, Bamako, Mali, Cameroon

University of Yaounde I, BP 812, Yaounde, Cameroon

Key words: Breeding program, cluster analysis, controlled-cross-hand-pollination, phenotypic variation, principal component analysis.

Abstract

Phenotypic variation on 26 well-known accessions of African plum collected from four provenances established as genebanks was assessed under controlled-field conditions using a full nested mating design. Data were recorded for 12 agro-morphological fruit traits using multivariate statistical techniques. Descriptive statistics for each studied trait were calculated. In addition, patterns of morphological variation were assessed using principal component analysis (PCA). Continue reading