World Journal of Agricultural Research
ISSN (Print): 2333-0643 ISSN (Online): 2333-0678 Website: http://www.sciepub.com/journal/wjar Editor-in-chief: Rener Luciano de Souza Ferraz
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World Journal of Agricultural Research. 2015, 3(4), 139-142
DOI: 10.12691/wjar-3-4-4
Open AccessArticle

Sprouting Value Index: A New Concept in Evaluation of Rooting of Cuttings

Justin R Nayagam1,

1Department of Botany, Union Christian College, Aluva, Kerala State, India

Pub. Date: August 18, 2015

Cite this paper:
Justin R Nayagam. Sprouting Value Index: A New Concept in Evaluation of Rooting of Cuttings. World Journal of Agricultural Research. 2015; 3(4):139-142. doi: 10.12691/wjar-3-4-4

Abstract

The vigor of indole 3-butyric acid (IBA) induced rooting of stem cuttings and its suitable sprouting/rooting medium can be evaluated using sprouting value index, which is developed in Pongamia pinnata, a nitrogen fixing, avenue and medicinal tree species of the tropics. Field studies were carried out using three rooting medium at a location in Central Kerala, Peninsular India, during the months of February (P1), June (P2), and October (P3) in 2009, 2010 and 2011. Field trials were performed using 300 ppm, 500 ppm and 1000 ppm IBA. The control cuttings do not recorded rooting. The results obtained indicate high SVI (sprouting value index) for aerial shoot cuttings planted in root trainers with coir pith compost (RTCP) with all the three concentration of IBA applied. Sprouting percentage was increased and the speed of completion of sprouting/rooting initiation decreased by the use of IBA treatment. Increased CWR and SUP percentages indicate defects in management practices, dormancy and or the genotype of the cultivar.

Keywords:
sprouting value index Pongamia pinnata rooting media rooting of stem cuttings

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