GENETIC STUDIES FOR THE EXPLOITATION OF HYBRID VIGOUR FOR SEED YIELD AND COMPONENT CHARACTERS IN CASTOR (Ricinus communis L.)
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 51
Abstract
Forty five hybrids which were developed through half diallel mating design (ten inbred lines) were evaluated along with their parents to study heterosis for seed yield and its related traits in castor. The analysis of variance revealed that the mean square values due to genotypes, parents and crosses were significant, which suggested differences among themselves for all the characters under study. Among parental genotypes, inbreds namely ANDCI 8, ANDCI 10-04, ANDCI 10-1, ANDCI 9 and JI 360 yielded superior heterotic crosses for seed yield and its component characters. The cross combinations viz., ANDCI 8 x ANDCI 10-04,ANDCI 8 x ANDCI 10-3 and ANDCI 8 x ANDCI 10-12exhibited significant and positive heteros is over the standard check for seed yield per plant. Among the crosses, cross combinations, JI 360 x ANDCI 10-1 and ANDCI 8 x ANDCI 10-04 also exhibited significant and desirable heterotic effects (RH and HB) for number of effective branches per plant and number of secondary spikes per plant. The heterosis for seed yield per plant appeared because of high manifestation of heterosis for component traits, viz., primary raceme length, effective raceme length, number of capsules per primary raceme, kernel, length and volume weight. In consideration to dominance effect, all the characters except number of nodes up to primary raceme and kernel width revealed that increasing alleles had dominant effects; thereby more number of parents contributed dominant genes causing increasing effect. For days to 50% flowering as well as maturity of primary raceme exhibited that genes responsible for lateness were dominant; while, the characters plant height up to primary raceme and oil content suggested that both increasing and decreasing genes showed dominance effect and different parents contributed accordingly. Hence, selection of crosses on the basis of per se performance with observed heterosis for important seed yield contributing traits would be more desirable to exploit heterosis on commercial scale in castor.
Authors and Affiliations
K. P. PATEL
Keywords
Related Articles
- EP ID EP170884
- DOI -
- Views 92
- Downloads 0
PATTERN OF ARRIVALS AND PRICES OF WHEAT IN DIFFERENT GRADE REGULATED MARKETS OF MADHYA PRADESH
The present study has been under taken in different grade regulated markets to analysing the pattern of market arrivals and prices in Madhya Pradesh for wheat. As it is the main crop of the state. One Regulated Market (K...
CONSTRAINTS FACED BY THE FARMERS IN THE USE OF MOBILE PHONE FOR AGRICULTURE
21st century is the era of technology, in agriculture the information and communication technology is a new approach for development of agriculture through dissemination of new technology and agriculture information, tim...
ECONOMICS OF MECHANICAL VERSUS MANUAL HARVESTING OF TUR IN NORTH KARNATAKA
The present study attempted to estimate the cost of cultivation of Tur, identify methods of harvesting and document constraints faced by Tur growers in mechanical harvesting in two major Tur growing districts of north Ka...
AN OBJECTIVE METHOD OF PHENOTYPING POD FRAGRANCE IN DOLICHOS BEAN (Lablab purpureus L. SWEET) VAR. LIGNOSUS
In dolichos bean, pods with high fragrance fetch premium price in the market. Pod fragrance is routinely assessed through organoleptic means. Phenotyping pod fragrance by organoleptic (smelling) means is highly relative...
STUDY ON BIODIVERSITY OF PHOTOTACTIC HARMFUL INSECT FAUNA COLLECTED IN LIGHT TRAP IN CHICKPEA (Cicer arietinum Linn.) ECOSYSTEM
The present experiment was conducted under the study on scope and use of light trap as IPM tool in chickpea ecosystem. Documentation of information was done on biodiversity of harmful insect fauna in chickpea ecosystem c...