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

SEASONAL ABUNDANCE OF WHITEFLY Bemisia tabaci (GENNADIUS) ON BT COTTON IN RELATION TO METEOROLOGICAL PARAMETERS UNDER HARYANA CONDITION

The present studies on population dynamics of whitefly, Bemisia tabaci (Gennadius) on cotton hybrid BIO 6588 (BG II) were carried out during Kharif 2014 at Cotton Research Area, CCS Haryana Agricultural University, Hisar...

CHARACTER ASSOCIATION AND PATH COEFFICIENTS ANALYSIS FOR VARIOUS YIELD ATTRIBUTES OF BRINJAL (Solanum melongena L.)

A field experiment including forty genotypes was conducted at Research Farm of the Department of Vegetable Science, CCS Haryana Agricultural University, Hisar during autumn winter season 2015-16. The observations were re...

EFFECT OF MILKING INTERVALS ON MILK PRODUCTION, COMPOSITION AND SOMATIC CELL COUNTS IN SAHIWAL COWS

The present study was conducted to find out the effect of milking intervals on milking attributes like milk let down time, milking time, milk flow rate, milk yield, composition and somatic cell count in Sahiwal cows. The...

ECONOMICS OF GUAVA CULTIVATION IN DHARWAD DISTRICT OF NORTHERN KARNATAKA

An attempt has been made to estimate the trends in area, production and productivity of guava fruit in Dharwad district of Northern Karnataka. Secondary data on area, production and productivity were collected from State...

BACKYARD GOAT FARM PERFORMANCE IN THE PHILIPPINES (2008-2010; 2013-2015)

Goat raising is gaining popularity as an enterprise in the Philippines, however, very few have taken the initiative to gather data from backyard goat farmers and to analyze their farm performance to understand the viabil...

Download PDF file
  • EP ID EP170884
  • DOI -
  • Views 103
  • Downloads 0

How To Cite

K. P. PATEL (2016). GENETIC STUDIES FOR THE EXPLOITATION OF HYBRID VIGOUR FOR SEED YIELD AND COMPONENT CHARACTERS IN CASTOR (Ricinus communis L.). International Journal of Agriculture Sciences, 8(51), 2278-2286. https://europub.co.uk./articles/-A-170884