A study of interaction of additive, dominance and epistatic gene effects with micro- and macro-environments in two tomato triple test crosses

1984 ◽  
Vol 103 (1) ◽  
pp. 53-57 ◽  
Author(s):  
R. P. Singh ◽  
S. Singh
Keyword(s):  
Flowering Time ◽  
Final Height ◽  
Gene Effects ◽  
Epistatic Effects ◽  
Triple Test ◽  
Maturity Period ◽  
Plant Yields ◽  
Number Of Branches

SummarySixty families of each of two tomato triple test crosses (S 120 × EC 61747 and EC 31513 × Pusa Ruby) were raised in completely randomized blocks in two replications with two fertilizer levels. Perkins & Jinks' (1971) analysis was used to detect and measure the interactions of additive, dominance and epistatic effects of genes with micro- and macro-environments for flowering time, maturity period, number of branches, final height, number of locules, number of fruits per plant, yields per plant and weight per fruit. Additive and dominance gene effects were almost equally sensitive to micro- and to macro-environments. The j and l type epistasis was more sensitive to the environments than the i type epistasis.

Triple test cross analysis in four sesame crosses (Sesamum indicum L.)

2001 ◽  
Vol 137 (2) ◽  
pp. 185-193 ◽  
Author(s):  
B. R. BAKHEIT ◽  
A. A. ISMAIL ◽  
A. A. EL-SHIEMY ◽  
F. S. SEDEK
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Epistatic Effect ◽  
Gene Effects ◽  
Partial Dominance ◽  
Triple Test Cross ◽  
Test Cross ◽  
Triple Test ◽  
Oil Percentage ◽  
Number Of Branches

The present study was carried out during 1996, 1997 and 1998 to estimate the additive, dominance and epistatic components of genetic variation for yield, yield components and wilt infection by using 90 triple test cross families and their parents, F1 and F2 in each of four sesame crosses, i.e. Bengalian×Giza 32 (TTC1), Intro 259×Giza 25 (TTC2), Intro 413×Intro 777 (TTC3) and Shandaweel 5×Line 107 (TTC4). Mean squares from the genetic analysis of variance and the overall epistatic gene effects were highly significant differences for all studied characters. The [i] type (additive×additive) was the most important epistatic effect for height of the first capsule (TTC4), number of branches/plant (TTC1 and TTC3), length of the fruiting zone (TTC1, TTC2 and TTC3), days to the first flower and number of capsules/plant (TTC1, TTC2 and TTC4), 1000-seed (TTC3), wilt infection percentage (TTC3 and TTC4) and plant height, capsule length and seed yield/plant in all crosses. The ratio of (H/D)1/2 confirmed the presence of partial dominance for all studied traits. The highest proportion of recombinant lines was obtained for days to the first flower, number of branches/plant, height of the first capsule and seed yield/plant in TTC3 and plant height, capsule length, length of the fruiting zone number of capsules/plant, 1000-seed weight and oil percentage in TTC2.

A study of genotype × environment interaction in three chickpea triple test crosses

1986 ◽  
Vol 107 (3) ◽  
pp. 549-554
Author(s):  
S. Singh ◽  
I. S. Pawar ◽  
I. P. Singh
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Grain Weight ◽  
Environment Interaction ◽  
Gene Effects ◽  
Genotype Environment Interaction ◽  
Triple Test ◽  
Sowing Dates ◽  
Additive Gene ◽  
Number Of Branches

SUMMARYThe analysis of Perkins & Jinks (1971) was applied to 360 progeny families of three chickpea F2 triple test crosses, namely, F 378 × ICCC 1, P 1198–1 × ICCC 1 and US 613 × BG 203, to detect and measure the interaction of additive, dominance and epistatic gene effects with sowing dates. The families were grown in completely randomized blocks in three replications with two sowing dates, and data were recorded for plant height, number of branches per plant, number of days from sowing to flowering, number of days from sowing to maturity, number of pods per plant, number of grains per plant, 100-grain weight and grain yield per plant. The i type epistasis and additive genetic component were relatively more important than j and l type epistasis and dominance component, respectively. The j and l type epistasis and additive gene effects were more sensitive to environmental differences than the i type epistasis and dominance gene effects, respectively.

Estimation of additive and epistatic gene effects for phenotypic and biochemical traits in double hyploid lines of winter rape seed ,(Brassica napus L.)

2019 ◽  
Vol 79 (3) ◽  
Author(s):  
Jan Bocianowski ◽  
Kamila Nowosad ◽  
Agnieszka Dobrzycka ◽  
Joanna Wolko
Keyword(s):  
Brassica Napus ◽  
Genetic Parameters ◽  
Gene Interaction ◽  
Epistatic Effect ◽  
Brassica Napus L ◽  
Small Individual ◽  
Gene Effects ◽  
Epistatic Effects ◽  
Significant Additive Effect ◽  
Number Of Branches

In this paper 60 doubled haploid lines of winter oilseed rape (Brassica napus L.) were studied. Genetic parameters as additive and epistatic effects were estimated for 24 traits. The results indicate the importance of both these effects for number of branches per plant, number of siliques per plant, linoleic acid, total of glucosinolates, total of alkenyl glucosinolates, gluconapin, glucobrassicanapin, progoitryn, napoleiferin and indolyl in both years of this study. Statistically significant epistatic effect and non-significant additive effect for thousand seed weight means that this trait was determined by genes with small individual effects but strong gene by gene interaction effects. Confounding epistatic effects in models suggested that inheritance of this trait is complex and polygenic.

scholarly journals Effect of biofertilizer obtained by anaerobic digestion of cassava effluent on the development of crambe plants

2017 ◽  
Vol 21 (10) ◽  
pp. 681-685 ◽  
Author(s):  
Andressa C. Neves ◽  
Camila N. Bergamini ◽  
Rafaela de O. Leonardo ◽  
Manoel P. Gonçalves ◽  
Dilcemara C. Zenatti ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Plant Development ◽  
Root Biomass ◽  
Oil Content ◽  
Final Height ◽  
Control Treatment ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Shoot And Root Biomass ◽  
Number Of Branches

ABSTRACT This study aimed to evaluate the effect of applying increasing doses of biofertilizer obtained by the anaerobic digestion of cassava effluent on the development of crambe plants. The experiment was conducted in a protected environment at the Federal University of Paraná (UFPR), Palotina Sector, between April and August 2015. A completely randomized design was used, and five different treatments with the following doses were applied in five replicates: 0, 40, 80, 120, and 160 kg ha-1 of K2O. The following parameters related to plant development were evaluated: final height, stem diameter, number of branches, dry shoot and root biomass, mass of the grains, and oil content. The 160 kg K2O ha-1 dose was found to have the best influence on the plant development, because all the measured parameters reached their highest values at this dose, except for oil content, which attained the highest percentage in the case of the control treatment (0 kg ha-1 of K2O). This study proved that the biofertilizer obtained by anaerobic digestion of cassava effluent can be used as an alternative to regular fertilizers in cultivating crambe.

scholarly journals TEMPERATURE, TRANSPLANT TIME, AND PLUG SIZE EFFECTS ON GROWTH AND DEVELOPMENT OF PANSY, PETUNIA, VINCA, AND IMPATIENS

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1159g-1159
Author(s):  
Abdulrhman I. Al-hemaid ◽  
David S. Koranski
Keyword(s):  
Flowering Time ◽  
Cell Size ◽  
Size Effects ◽  
Growth And Development ◽  
Final Height ◽  
Dry Weight ◽  
Holding Time ◽  
Fluorescent Light ◽  
Flower Number ◽  
Plant Variety

Petunia `Red Flash', Vinca `Little Blanch', Pansy `Magestic Giant Purple', and Impatien `Super Elfin Red' plugs were held in the greenhouse after they reached the saleable size in 200, 406, 512, and 800 for 1 to 3 weeks Pansy plugs were held in coolers at 40, 50, or 60F under fluorescent light for 16 hrs photoperiod for 1 to 3 weeks in 200, 406, 512, or 800 plug trays. All plants ware transplanted weekly and were grown in the greenhouse until flowering and data were collected. For plants bald in the greenhouse, plants were affected by transplanting time. As the holding time increased the final height, diameter, flower number, and fresh and dry weight of plants decreased. The flowering time was delayed by increase the holding time, regardless of plant variety, As cell size decreased, plant height, diameter, flower number, and fresh and dry weight decreased. For plants held in the coolers, the flowering time was delayed by the transplant time, regardless of cooler temperatures Plant quality was not affected by the treatment. The height, diameter, flowers number, and fresh and dry weight of plants showed a little effects by temperatures, cell size, and transplanting time.

scholarly journals Genetic dissection of main and epistatic effects of QTL based on augmented triple test cross design

PLoS ONE ◽  
2017 ◽  
Vol 12 (12) ◽  
pp. e0189054 ◽  
Author(s):  
Xueli Zhang ◽  
Congwei Sun ◽  
Zheng Zhang ◽  
Zhijun Dai ◽  
Yuan Chen ◽  
...  
Keyword(s):  
Genetic Dissection ◽  
Epistatic Effects ◽  
Triple Test Cross ◽  
Test Cross ◽  
Triple Test

Effects of genotype and environment on architecture and flowering time of indeterminate Andean lupins (Lupinus mutabilis Sweet)

1998 ◽  
Vol 49 (8) ◽  
pp. 1241 ◽  
Author(s):  
A. Hardy ◽  
C. Huyghe ◽  
M. A. Rahim ◽  
P. Roemer ◽  
J. M. Neves-Martins ◽  
...  
Keyword(s):  
Flowering Time ◽  
Environmental Conditions ◽  
Plant Structure ◽  
First Order ◽  
Order Branch ◽  
Lupinus Mutabilis ◽  
Matter Production ◽  
Environmental Variations ◽  
Number Of Leaves ◽  
Number Of Branches

Plant structure was shown to limit the seed yield of Lupinus mutabilis through low dry matter production. The genetic and environmental variations of architectural and phenological traits of indeterminate Andean lupin were evaluated. Twelve genotypes were sown at 6–8 dates at 5 locations in Europe in 1994 and 1995. Wide variation was observed for phenological and architectural characters. The variation in the number of mainstem leaves was partly explained by the temperature. The mainstem height and flowering date were related to the number of mainstem leaves but flowering time was also affected independently by the enviromental conditions. The mainstem structure determined the potential number of first-order branches through the number of axillary buds. The actual number of branches was also determined by the prevailing environmental conditions during branch growth. The number of leaves on the second first-order branch was less susceptible to the environmental conditions than the number of leaves on the mainstem. Heritabilities were high for all characters except for the number of leaves on the second first-order branch, and the interactions between genotype and environmental condition were low. Breeding for architecture modification would thus be possible in L. mutabilis.

Quantitative analysis of Linum usitatissimum crosses for dual-purpose traits

1998 ◽  
Vol 131 (3) ◽  
pp. 285-292 ◽  
Author(s):  
R. FOSTER ◽  
H. S. POONI ◽  
I. J. MACKAY
Keyword(s):  
Quantitative Analysis ◽  
Flowering Time ◽  
Seed Yield ◽  
Linum Usitatissimum ◽  
Seed Weight ◽  
Superior Performance ◽  
Dual Purpose ◽  
Good Potential ◽  
Common Parent ◽  
Number Of Branches

The commercial future of Linum usitatissimum is intrinsically linked to its cultivation as a dual-purpose crop for producing increased seed and fibre yields. The present study evaluates 36 F1 crosses derived from nine linseed/flax accessions for their potential as dual-purpose cultivars and/or their suitability for extracting new recombinants producing high seed yield as well as increased fibre output. The quantitative analysis indicated that variation between the F1 families is largely but not exclusively due to the additive and non-additive (dominance) effects of genes. Dominance is high for plant height (H1), height at maturity (HMT), number of branches (NBr) and seed weight (SdWt) while 100 seed weight (Wt100) displays no dominance at all. The repeatability estimates representing the heritability of each trait, vary from low (0·20) for number of branches (NBr) to high (0·71) for height at flowering time (HFT). The dual-purpose traits such as seed weight (SdWt) and straw weight (StWt) were only moderately inherited while flowering time (FT) and various heights were rather highly heritable. A moderate and positive correlation (r=0·57) between StWt and SdWt, and a completely independent inheritance of Wt100 suggested that there are good chances of combining these traits into a single genotype. The phenotypic performance of the crosses also confirmed this trend and at least four crosses showed superior performance for both SdWt and StWt compared to their parental lines. All these crosses involved a linseed line (B3) as a common parent and the second parent was either another linseed line (A1 and A3) or a flax accession (K3 and L2); none of the flax×flax crosses showed good potential for seed yield. While all four crosses possess the potential to become highly productive, dual-purpose, hybrid varieties, the extraction of desirable inbred lines from them, however, may prove difficult because the superior performance of the hybrids seems largely due to strong unidirectional dominance and high SCA effects.

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