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Morphometrical studies on black pepper (Piper nigrum L.). I. Cluster analysis of black pepper cultivars

DSpice at Indian Institute of Spices Research

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Field Value
 
Creator RAVINDRAN, P N
BALAKRISHNAN, R
NIRMAL BABU, K
 
Date 2006-09-19T06:56:40Z
2006-09-19T06:56:40Z
1997-06
 
Identifier Journal of Spices and Aromatic Crops 6 (1) : 9-20 (1997)
0971-3328
http://hdl.handle.net/123456789/79
 
Description Forty four cultivars and seven wild black pepper (Piper nigrum) accessions (51 Operational Taxonomic Units) were subjected to single linkage and centroid linkage cluster analysis. The 22 characters employed in the study resolved into two distinct sets. Based on character correlations, six clusters were recognised while certain characters did not show correlation with others. Centroid clustering led to the grouping of the Operational Taxonomic Units into 11 clusters. Among these, four groups had one cultivar, four had two cultivars, one had four cultivars, one had seven cultivars and one had 28 cultivars each. The cultivars that were unique and did not cluster with any other are Karimunda, Panniyur-1, Vadakkan and Kuthiravally. The inclusion of 28 cultivars in one group also shows that a majority of common cultivars resemble one another closely and probably had a common origin. The study is useful in establishing the relative resemblances of major black pepper cultivars grown in Kerala and Karnataka of India.
 
Format 743713 bytes
application/pdf
 
Language en
 
Publisher Indian Society for Spices
 
Subject black pepper
centroid linkage
cluster analysis
morphometrics
Piper nigrum
single linkage
 
Title Morphometrical studies on black pepper (Piper nigrum L.). I. Cluster analysis of black pepper cultivars
 
Type Article