STUDIES ON CHARACTERIZATION AND SEED PRODUCTION TECHNIQUES IN FRENCH BEAN (Phaseolus vulgaris L.)
Loading...
Date
2017-01
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
K.R.C. COLLEGE OF HORTICULTURE, ARABHAVI (UNIVERSITY OF HORTICULTURAL SCIENCES, BAGALKOT)
Abstract
The present investigation was undertaken during kharif and rabi season of 2015 at K.R.C. College of Horticulture, Arabhavi. In experiment-I, genetic variability for growth, quality and yield parameters in french bean genotypes was studied. High GCV and PCV were recorded for pod yield per plant. High heritability coupled with high GAM was recorded for most of growth and yield parameters like pod weight and pod yield per plant indicating that these characters are controlled by additive gene action and direct selection for these traits is favourable.
The genotypic correlation studies revealed highly significant and positive association of pod yield per plant with plant height, number of branches per plant, number of pods per plant and pod weight. The genotypic path analysis revealed that the number of pods per plant, pod weight and number of branches per plant were the most influencing factors as these traits have strong positive and direct effect on green pod yield per plant. Using mahalonobis D2 statistics, 49 french bean genotypes were grouped into 7 clusters. Pod weight contributed maximum to the total genetic diversity.
In experiment-II, morphological characterization of 49 french bean genotypes was carried out based on DUS guidelines. Thus, characterization based on plant growth type, stem anthocyanin pigmentation, flower colour of standard petal, pod colour, pod curvature, stringiness, seed shape and seed colour were found to be more reliable for varietal identification.
In experiment-III, effect of growing conditions and different dates of sowing on seed yield and quality of french bean genotypes Arka Suvidha and Ring beans was studied. Crop sown in June under shade house condition produced significantly higher growth and yield attributes leading to higher seed yield. The seed yield reduced with delayed sowing with open condition. Ring beans produced higher seed yield compared to Arka Suvidha irrespective of growing condition and sowing dates. However, germination percentage, seedling dry weight, vigour index I and II increased with delayed sowing i.e., November in shade house condition. Thus under shade house condition, sowing should be taken in November with Ring beans for obtaining optimum seed yield with least scarifies on seed quality under non-traditional Ghataprabha Left Bank Canal (GLBC) area of Karnataka.
Description
TH591
Keywords
null