![](images/graphics/blank.gif)
F1 cross
-
The ornamental crop Hydrangea macrophylla develops highly attractive lacecap (wild type) or mophead inflorescences. The mophead trait, which is mostly favored by consumers, is recessively inherited by the INFLORESCENCE TYPE locus (INF). If lacecap cultivars are crossed with mophead cultivars, then either 50% or all progenies develop lacecap inflorescences, depending on the zygosity at the INF locus.
12p
vihagrid
30-01-2023
9
3
Download
-
In maize hybrid breeding, complementary pools of parental lines with reshuffled genetic variants are established for superior hybrid performance. To comprehensively decipher the genetics of heterosis, we present a new design of multiple linked F1 populations with 42,840 F1 maize hybrids, generated by crossing a synthetic population of 1428 maternal lines with 30 elite testers from diverse genetic backgrounds and phenotyped for agronomic traits.
29p
viarchimedes
26-01-2022
9
0
Download
-
Anther culture response of six wheat genotypes and their F1 crosses was investigated. Results indicated that considerable genetic variation among the tested genotypes was observed. Calli were obtained from all wheat genotypes studied.
10p
schindler
30-12-2021
5
0
Download
-
The six populations (parents, F1, backcrosses and F2) of the two wheat crosses, Gemmeiza 9 · IL1 (C1) and Sids 1 · IL2 (C2) were grown under normal irrigation (N) and drought stress (D) at the farm of Faculty of Agriculture, Sohag University, Egypt to study the genetic background of drought stress tolerance. Genetic variation was found for No.
8p
schindler
30-12-2021
12
0
Download
-
The highly prolific breeds of domestic sheep (Ovis aries) are globally valuable genetic resources for sheep industry. Genetic, nutritional and other environmental factors affect prolificacy traits in sheep. To improve our knowledge of the sheep prolificacy traits, we conducted mRNA-miRNA integrated profiling of ovarian tissues from two pure breeds with large (Finnsheep) vs. small (Texel) litter sizes and their F1 crosses, half of which were fed a flushing diet.
17p
vilarryellison
29-10-2021
5
0
Download
-
Divergent selection for meat and egg production in poultry has resulted in strains of birds differing widely in traits related to these products. Modern strains of meat birds can reach live weights of 2 kg in 35 d, while layer strains are now capable of producing more than 300 eggs per annum but grow slowly. In this study, RNA-Seq was used to investigate hepatic gene expression between three groups of birds with large differences in growth potential; meat bird, layer strain as well as an F1 layer x meat bird.
12p
vibeauty
23-10-2021
10
1
Download
-
Information on magnitude of combining ability were obtained for fruit yield and its related components; involving eight parents and their 28 F1 hybrids (excluding reciprocal cross) along with a commercial hybrid check ‘GJOH-4’ of okra in randomized block design with three replications.
9p
chauchaungayxua10
19-03-2021
17
2
Download
-
The present investigation was carried out to study the mean performance, heterosis, combining ability and gene action for different seed traits viz., seed germination, seed vigour index-I, seed vigour index-II and fruit yield in 15 F1 crosses, developed by crossing 6 genotypes during the year 2015.
11p
trinhthamhodang1218
26-02-2021
11
1
Download
-
An investigation was taken up at Maize Research Station, Agricultural Research Institute, PJTSAU, Hyderabad during 2013-14. F1 material was generated by making crosses between BML 6 × CML 181 and BML 7 × CML 181for introgression of opaque 2 gene from Mexican donor CML181 through molecular breeding approach. The current study deals with the conversion of non QPM inbred lines to QPM with more than 4% lysine and 0.95% tryptophan.
15p
cothumenhmong9
18-01-2021
8
1
Download
-
The present investigation was undertaken for combining ability studies on quantitative and qualitative traits at C.H.F., CAU, Pasighat, A.P. The 28 F1 hybrids were developed by crossing 8 diverse brinjal genotypes/varieties in half diallel fashion. The variances due to GCA and SCA were significant for most of the characters indicating the importance of both additive and non-additive gene action in the inheritance of these characters.
6p
cothumenhmong9
04-01-2021
17
1
Download
-
This experiment was having two sub experiments viz., cross SPV245 x SPV 1822 (A X C) and SPV 1430 x SPV 1822 (B X C). Test crosses for this experiment was obtained by crossing the 10 MS lines with both the parents and their F1‟s for both the sets. In this way the each sub experiment was having 30 hybrids. Both the sub experiments were conducted in RBD with three replications following the 45 cm between rows and 10 cm between plants spacing. In present investigation difference between testers in line in both sets of TTC were significant.
14p
trinhthamhodang1216
19-11-2020
18
1
Download
-
Major improvement in sunflower breeding requires heterotic hybrids which can be achieved by tapping combining ability of F1 hybrids developed from crossing of two genetically diverse female lines with male testers. In the present study, 56 hybrids were evaluated derived from four lines and fourteen testers’ crosses in a line × tester mating design. The analysis of variance revealed existence of highly significant differences (p=0.05) among genotypes, parents and parents vs crosses indicating the presence of heterosis for quantitative traits in sunflower.
12p
caygaocaolon8
07-11-2020
16
2
Download
-
Eight diverse homozygous tomato parental lines were crossed in half diallel fashion, to develop twenty-eight hybrids. These 28 F1 hybrids and their parents were evaluated at Department of Vegetable Science, C.H.F., CAU, Pasighat, A.P. during 2014-2015.
10p
caygaocaolon8
07-11-2020
10
1
Download
-
The experimental material consisted of six generations (P1, P2, F1, F2, BC1 and BC2) obtained from two crosses of rice using three parents laid out in a randomized block design with two replications to study the generation mean analysis for ten characters viz., days to flowering, plant height, number of tillers per plant, number of productive tillers per plant, panicle length, number of filled grains per panicle, total number of grains per panicle, 1000 grain weight and single plant yield.
9p
caygaocaolon8
07-11-2020
9
2
Download
-
Brassica species are major oilseed crops which are an increasingly important part of the human diet worldwide. In present investigation 11 varieties and their 55 F1’s were characterized for storage seed protein profiling using sodium dodecyl sulphate – polyacryl amide gel electrophoresis (SDS - PAGE). The electrophoresis of the proteins revealed protein bands in the range of 80kD to less than 14 kD molecular weight (MW). Out of 15 bands 14 bands were more or less monomorphic and only single band was polymorphic.
8p
nguathienthan8
20-10-2020
11
2
Download
-
An experiment was conducted to evaluate the performance of 54 F1 developed by crossing of 18 lines with 3 testers. Analysis of variance revealed highly significant difference in treatments, parents, crosses and line × tester for days to 50% flowering, plant height, flag leaf area and grain yield per plant under both normal and saline conditions. Parent vs.
14p
nguathienthan8
20-10-2020
18
2
Download
-
In the present study, an attempt has been made to identify genetically divergent promising lines and their F1 progenies, so as to select the potential parents for breeding programme to attain the anticipated improvement in fruit yield per plant of sponge gourd either by crossing two dissimilar parents to get heterotic F1 or by making single cross, three way cross, double cross and selfing of crosses (F1) obtained by the divergent parents of sponge gourd.
13p
nguaconbaynhay8
13-10-2020
10
2
Download
-
Seven lines, four testers and twenty eight F1 crosses derived through line x tester mating were evaluated to study the magnitude of heterosis for yield, water use efficiency and its attributing traits in order to assess the worth of a cross. The study on extent of heterosis revealed that sixteen hybrids out of twenty eight hybrids recorded high status with maximum score.
11p
nguaconbaynhay8
13-10-2020
12
1
Download
-
Nine diverse genotypes of bitter gourd (Momordica charantia L.) were crossed during summer season of 2015 in diallel design (excluding reciprocals).The resultant 36 hybrids along with the parents were evaluated in randomized block design with three replications during Kharif 2015 at Horticulture farm, S.K.N. College of Agriculture, Jobner. Each parents/F1 were sown in furrow maintaining 2.25m x 0.75m spacing. The analysis of variance for experimental design revealed the existence of adequate genetic variability in experimental material for all traits under study.
8p
nguaconbaynhay8
13-10-2020
30
1
Download
-
Generation mean analysis study in cowpea was undertaken to estimate the gene action operating in the inheritance of yield and its components. Six basic generations viz., P1, P2, F1, F2, BC1 and BC2 of five crosses, namely Pant lobia-1 x BRDCP-11 (cross I), Pant lobia-2 x GC-3 (cross II), Waghi local x W-203-1 (cross III), KM-5 x GC-3 (cross IV) and GC-3 x CDP-107 (cross V) were studied. Scaling test was applied to test the adequacy of additive-dominance model for the traits under investigation.
10p
chauchaungayxua8
03-10-2020
15
2
Download
CHỦ ĐỀ BẠN MUỐN TÌM
![](images/graphics/blank.gif)