COMBINING ABILITY STUDY FOR GREEN FRUIT YIELD AND ITS COMPONENTS IN HOT PEPPER (CAPSICUM ANNUUM L.)

2001 ◽  
Vol 48 (4) ◽  
pp. 373-380 ◽  
Author(s):  
G. Legesse
Keyword(s):  
Capsicum Annuum ◽  
Combining Ability ◽  
Agricultural Research ◽  
Block Design ◽  
Fruit Yield ◽  
Hot Pepper ◽  
Economic Traits ◽  
Gene Effects ◽  
Green Fruit ◽  
Capsicum Annuum L

The fruit yield and quality of hot pepper, Capsicum annuum L., is very low in Ethiopia mainly due to the lack of improved cultivars. The objective of this study was to evaluate the combining ability for yield and yield contributing characters in order to apply an appropriate breeding methodology for the improvement of yield and the contributing characters. Seven diverse cultivars, two local cultivars and five introduced promising inbred lines, were crossed in a half-diallel. The parents and F1s were grown at Melkasa Agricultural Research Center in 1999 and 2000. The experiment was arranged in a randomized complete block design with three replications of ten plants per row. The green fruit yield and eight yield contributing characters were recorded from eight plants in each replication. The analysis of variance and estimates of GCA and SCA were significant for most of the characters studied. Significant GCA and SCA values were recorded for most of the characters, revealing that both additive and non-additive gene effects were involved in genetic control. A lower average degree of dominance was also recorded for some of the characters. Although none of the parents was a good general combiner for all the traits, some parents showed high GCA effects for some of the economic traits, suggesting that these parental lines could be considered simultaneously while formulating a breeding programme for improving fruit yield and yield contributing characters. The majority of the crosses also depicted significant SCA effects in the desirable directions.

COMBINING ABILITY OF TOMATO GENOTYPES FOR IMPROVED SALT TOLERANCE

2001 ◽  
Vol 48 (4) ◽  
pp. 345-352
Author(s):  
L. Dessalegne ◽  
P. D. S. Caligari
Keyword(s):  
Salt Tolerance ◽  
Combining Ability ◽  
Yield Components ◽  
Management Practices ◽  
Block Design ◽  
Diallel Cross ◽  
Fruit Yield ◽  
Gene Effects ◽  
Growing Conditions ◽  
Tomato Genotypes

The combining ability of four tomato genotypes (Lycopersicon esculentum Mill.) for salt tolerance was determined by investigating the progeny from a 4 × 4 diallel cross. Sixteen progenies (F1s, selfs and reciprocals) were evaluated at three levels of salinity (0%, 1.0%, 1.5%) in a complete block design with four replications under greenhouse conditions. The analysis of the genetic component revealed that the mode of inheritance of salt tolerance appeared to be different to that of plant characters and salinity levels as measured by plant height and fruit yield components. However, the fruit count was consistently controlled by additive gene effects. The specific crosses Moneymaker (MM) × Red Alert (RA) and Ailsa Craig (AC) × Gardener's Delight (GD) produced the highest yield. The small-fruited parents, Red Alert and Gardener's Delight, had higher general combining ability value for salt tolerance than the large-fruited, Ailsa Craig and Moneymaker, for fruit yield components. RA and GD were superior parents in transmitting salt tolerance. The study revealed that plant selection could be used to improve varietal performance for salt tolerance. It is also suggested that the potential variation in commercial cultivars could be exploited to improve adaptability to more saline growing conditions till resistant cultivars are developed through crosses with the wild species or genetic transformation with optimum management practices.

scholarly journals Correlation and path-coefficient analysis in Ramnad Mundu chilli (Capsicum annuum L.) for yield and quality traits

2021 ◽  
Vol 16 (1) ◽  
pp. 1-6
Author(s):  
J. Phani Kumar ◽  
P. Paramaguru ◽  
T. Arumugam ◽  
N. Manikanda Boopathi ◽  
K. Venkatesan
Keyword(s):  
Capsicum Annuum ◽  
Seed Weight ◽  
Block Design ◽  
Crop Improvement ◽  
Fruit Yield ◽  
Direct Selection ◽  
Path Coefficient ◽  
Path Coefficient Analysis ◽  
Capsicum Annuum L ◽  
Positive Direct

The present investigation was conducted to find the correlation and path-coefficient analysis for yield and yield contributing characters in Ramnad Mundu chilli (Capsicum annuum L.) during Kharif 2018-19. The experiment was conducted on Forty-seven Mundu chilli genotypes for 15 characters, which was laid out in Randomized Complete Block Design with two replications. From correlation study dry fruit yield per plant showed highly positive correlation with number of fruits per plant (0.971 G, 0.894 P), ripened fruit yield per plant (0.991 G, 0.949 P), number of seeds per fruits (0.383 G, 0.32 P), 1000 seed weight (0.369 G, 0.332 P), capsaicin % (0.302 G, 0.256 P) and number of primary branches per plant (0.267 G, 0.251 P) at both genotypic and phenotypic level. Path-coefficient analysis of different characters contributing towards the highest positive direct effect via number of fruits per plant (0.973), ripened fruit yield per plant (0.991), no. of seeds per fruit (0.383), 1000 seed weight (0.364), capsaicin % (0.302) and number of primary branches per plant (0.267). Hence, direct selection based on these characters would be effective in crop improvement through plant breeding in Mundu chilli.

scholarly journals Pendugaan Daya Gabung dan Nilai Heterosis Hasil Persilangan Half Diallel Cabai Rawit (Capsicum annuum L.)

2017 ◽  
Vol 1 (1) ◽  
pp. 34
Author(s):  
Oktaviana Shinta Risty ◽  
Muhamad Syukur
Keyword(s):  
Capsicum Annuum ◽  
Combining Ability ◽  
Design Method ◽  
Block Design ◽  
Inbred Lines ◽  
Fruit Weight ◽  
Capsicum Annuum L ◽  
Randomized Complete Block Design ◽  
Plant Hybrid ◽  
Half Diallel

The aim of this research was to study estimation general combining ability (GCA) and specific combining ability(SCA) of six bird pepper inbred lines (Capsicum annuum L.), heterosis and heterobeltiosis of fifteen bird pepper hybrids in half diallel crosses. The experiment were conducted from November 2013 to April 2014 using a Randomized Complete Block Design with three replications at Leuwikopo University Farm, IPB. Analysis of GCA and SCA were based on the Griffing’s model of diallel design method II. Heterosis values were predicted based on the average values of their parents and heterobeltiosis were predicted based on the average values of the highest parents. Genotype IPB C174 had the highest GCA for fruit weight, fruit length, fruit width, and yield for each plant. Hybrid IPB C160 x IPB C291 and IPB C291 x IPB C293 had positive SCA, heterosis, and heterobeltiosis values for some variable observed. Hybrid IPB C174 x IPB C291 had better advantages than the commercial varieties which were Santika, Bhaskara, Sonar, and Nirmala on fruit weight characters.Keywords: bird pepper, combining ability, half diallel, heterosis

scholarly journals Combining ability analysis in Chilli (Capsicum Annum L.)

2019 ◽  
Vol 39 (03) ◽  
Author(s):  
Siddappa S Chhabra ◽  
M Ravindra ◽  
E Shashikanth
Keyword(s):  
Combining Ability ◽  
Block Design ◽  
Fruit Yield ◽  
Hybrid Vigor ◽  
Male Sterile ◽  
Green Fruit ◽  
Capsicum Annum ◽  
Female Line ◽  
Randomized Block Design ◽  
Combining Ability Analysis

Twenty four crosses were developed by crossing three male sterile lines with each of eight testers to study the combining ability. Crosses were evaluated along with the parents in randomized block design with two replications. Results indicated that female line KCMS-44 and tester AL were identified as good general combiners for earliness and green fruit yield per hectare. The KCMS-44 × AL was best specific cross for green fruit yield per hectare on the basis of specific combining ability effects. This study suggested the exploitation of hybrid vigor in chilli.

scholarly journals Effects of Phosphorus Fertilizer on Plant Growth, Fruit Yield and Proximate Composition of Hot Pepper (Capsicum annuum, Rodo Variety)

2019 ◽  
pp. 1-10
Author(s):  
Emmanuel Olukunle Alabi ◽  
Olufemi Julius Ayodele
Keyword(s):  
Vitamin C ◽  
Capsicum Annuum ◽  
Proximate Composition ◽  
Growth Parameters ◽  
Phosphorus Deficiency ◽  
Block Design ◽  
Fruit Yield ◽  
Fertilizer Treatment ◽  
Hot Pepper ◽  
Phosphorus Fertilizer

Phosphorus deficiency is widespread in the soils in Nigeria which makes phosphorus fertilizer application at appropriate rates a component of the improved technologies needed for hot pepper (Capsicum annuum L) production. Atarodo (rodo) variety of hot pepper is cultivated in all agro-ecological zones and gives low fruit yields of variable quality which should be maximized with phosphorus fertilizer use but the information on the requirements is limited. The growth and fruit yield responses of rodo to phosphorus fertilizer were evaluated in 2013 and 2014 at Ado-Ekiti, southwest Nigeria in order to determine the optimum rates. The phosphorus fertilizer was applied at 0, 20, 40 and 60 kg P2O5 ha-1 in four replicates arranged in randomized complete block design. Data were collected on growth parameters from 2 weeks after fertilizer treatment and at 2-week intervals, number and weight of ripe fruits, fruit parameters and proximate composition, vitamin C and mineral contents. The growth parameters increased with age; plant height, number of leaves, leaf area and dry matter yield of plant portions showed linear increase up to the 60 kg P2O5 ha-1 rate. The 60 kg P2O5 ha-1 rate gave the highest fruit and seed yields in both years but the agronomic efficiency was maximized at 60 and 20 kg P2O5 ha-1 in 2013 and 2014 respectively. The fruit proximate composition, minerals and vitamin C contents increased to the highest values at 60 kg P205 ha-1. The linear responses to 60 kg P2O5 ha-1 in soils containing low available P suggest that higher rates and soils with variable P contents should be the focus to attain the optimum rates.

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