Variability in inter varietal hybrids and open pollinated seed progenies of black pepper ( Piper nigrum L .)
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Date
1991
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Department of Agricultural Botany, College of Horticulture, Vellanikkara
Abstract
The experiment was conducted at Pepper Research Station,Panniyur and College of Horticulture, Vellanikkara during 1989-90 to study the variability in F hybrids and open pollinated seed progenies of black pepper ( Piper nigrum L.).
Fourty five intervarietal F hybrids and 492 open pollinated seed progenies of 1982-83 plantings maintained at the Pepper Research Station, Panniyur were included in the study. Observations on four qualitative and 21 quantitative characters were made from all the available hybrids and open pollinated seed progenies for one season. The data thus obtained were interpreted suitably, after subjecting them to appropriate statistical analyses.
Considerable variation was present for both vegetative and reproductive characters in parents, F^ hybrids and open pollinated seed progenies. However, variability did not follow a uniform pattern in these three groups for the various characters. High positive correlation with yield was shown by several characters viz., green spike yield per vine, green berry yield per vine, number of spikes per vine, length of spike, developed berries per spike and thickness of orthotrope node and internode. The path analysis identified number of spikes per vine, length of spike and developed berries per spike as the most important characters influencing yield in the crop. Significant heterosis for important yield related characters viz., number of spikes per vine, length of spike and developed berries for spike was shown by certain hybrids.
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