GENETIC DIVERSITY AND CORRELATION STUDIES IN SAFFLOWER (CARTHAMUS TINCTORIUS L.)
Loading...
Date
2019-08-21
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra.
Abstract
The investigation on "Genetic diversity and correlation studies in safflower (Carthamus tinctorius L.)” was undertaken to estimate the extent of diversity and to estimate the contribution of each character towards genetic diversity and to study association among yield and its components.
The set of 63 genotypes along with three checks 'A-1, PBNS-12, PKV Pink' were evaluated in augemented block design with nine blocks at the field of Oilseeds Research Unit, Dr. PDKV, Akola during rabi 2018-2019. The data was recorded on the characters viz., days to 50% flowering, days to maturity, plant height (cm), number of branches per plant, number of capitula per plant, number of seeds per capitulum, volume weight (g/100ml), 100 seed weight (g), oil content (%) and seed yield per plant (g).
Present study revealed that high genetic diversity was present for all the characters in the genotypes under study since the variation among the genotypes were significant for all the characters. It was observed that seed yield per plant (25.69%) contributed maxmimum towards genetic divergence followed by days to maturity (18.41%), days to 50% flowering (16.08%), number of seeds per capitulum (12.82%) and plant height (10.58).
The 63 genotypes and three checks were grouped into ten clusters. The average inter cluster distance was maximum between clusters VI and VIII (3896.92), followed by clusters X and VIII (3096.12), clusters III and VI(2772.88), clusters II and VIII (2383.65), clusters V and IV (2296.31).
Canonical analysis indicated that overall contribution of first four canonical roots was 72.202% suggesting completion of maximum portion of differentiation in the first four phases. This indicates that there was need to involve some more characters in the further to study maximum variation.
The present study projected the importance of GMU-7363, GMU-5135, GMU-5134 as parents for earliness while parents GMU-7448, GMU-5136, GMU-2648, GMU-2928, GMU-667, GMU-1798, GMU-2830 and GMU-7355 for characters viz plant height, number of branch per plant, number of capitula per plant, number of seeds per capitulum, 100 seed weight, volume weight, oil content and seed yield per plant respectively for their further improvement in respect to yield contributing characters.
On the basis of cluster means and maximum inter-cluster distance, potential crosses suggested for different traits are GMU-7590 x GMU-972 for high oil with earliness and high yield potential, GMU- 4914 x GMU-972 for earliness with moderate volume weight and high yield potential, GMU-590 x GMU-7590 for high plant height with high oil, GMU-2830 x GMU- 972 for high oil with earliness, GMU-3438 x GMU-4914 for high hundred seed weight with earliness, GMU-7590 x GMU-6852 for high plant height and high oil with earliness.
Correlation studies revealed that, the seed yield per plant was significantly and positively correlated with plant height, number of branches per plant, number of capitula per plant, number of seeds per capitulum, 100 seed weight and volume weight.
Description
The present study was carried in year 2018-2019 in the rabi season, evaluated 63 genotypes and 3 checks for days to 50% flowering, days to maturity, plant height, number of branches per plant, number of capitula per plant, number of seeds per capitulum, 100 seeds weight, volume weight, oil content and seed yield per plant. On the basis of cluster means and maximum inter-cluster distance, ten different potential crosses have been suggested for different traits.
Keywords
Crop, Field Crops, Carthamus tinctorius, Safflower, Statistical Method, Data Collection, Design, Statistics, Crop Improvement, Genetics, Plant Breeding,
Citation
DHAGE PRIYANKA SAHEBRAO 2019. Genetic diversity and correlation studies in safflower (carthamus tinctorius l.). Department of agricultural botany, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, M. Sc. 2019. Print. xiii, 81p. (Unpublished).