Implications of hybrid vigour, combining ability and per se performance in pigeonpea [Cajanus cajan (L.) Millsp.]
Journal Title: Journal of Applied and Natural Science - Year 2016, Vol 8, Issue 2
Abstract
Three CGMS lines were crossed with 17 testers in a line × tester design during Kharif 2013 and sufficient number of hand pollinated seeds was produced. The resultant 51 hybrids along with their 20 parents and standard check variety (Maruti) were evaluated in RBD design with two replications. Combining ability analysis evinced predominance of non-additive gene effects for 7 characters indicating relevance of heterosis breeding for improving yield attributes. The gca effects of parents revealed that ICPA-2043, GRG-2009, GRG-2009-2, LAXMI, LRG-41 and JKM-197 were good general combiners for seed yield and it’s direct components. The estimates of sca effects revealed that 11 experimental hybrids had significant, desirable and positive sca effects for seed yield/plant. Among these, three best crosses were selected on the basis of per se performance for ascertaining their association with sca effects of seed yield per plant and its attributes. The investigation identified the good general combiners (ICPA -2043, GRG-2009, GRG-2009-2, LAXMI, LRG-41 and JKM-197) and promising crosses (ICPA-2043 X GRG-2009-2, ICPA-2047 X GRG-2OO9 and ICPA-2043 X ICPL-288) showing high mean and significant positive sca effects involved high × high gca effects of parents. These parental combinations may be used in breeding program for exploitation of hybrid vigour.
Authors and Affiliations
Yamanura Yamanura, S. Muniswamy, Ramesh Ramesh
Compatibility of fungal bioagent for bacterial leaf blight of rice with chemical pesticides, commonly used in rice cultivation
Though the pesticides have adverse effects but they still are very important in crop protection. Hence, present study on compatibility of fungal bioagent (Trichoderma harzianum) of bacterial leaf blight of rice with chem...
Analysis of rainfall data for storage and irrigation planning in humid south-eastern plain of Rajasthan in India
A study was carried out to analyze the rainfall data for storage and irrigation planning under humid south-eastern region of Rajasthan using a time series record for 32-year (1980-2011) periods. It was observed that most...
Change in chemical constituents and overall acceptability of frozen and dehydrated Aonla fruit pulp during storage
Ascorbic acid and total phenol in frozen aonla pulp on zero day of storage was found to be 365.5 mg/100g and 2.1 mg/g while in dehydrated aonla pulp it was 2.3 mg/100mg and 14.7 mg/g which was found to decrease with the...
Lifestyle diseases and effects of the treatment expenditure on family finances
Health is among the basic capabilities that give value to human life. Good health is a prerequisite to successful human endeavor and core to financial growth and activity. The lifestyle diseases are associated with the w...
Effect of chemical vis-a-vis non-chemical pest management on predatory spiders in paddy-ecosystem
Spiders act as one of the most important defenders in paddy ecosystem and there are several families of those with different habits. The question on the effect of chemical application in comparison to the non chemical op...