MARC details
| 000 -LEADER |
|---|
| fixed length control field |
03616nam a22004097a 4500 |
| 001 - CONTROL NUMBER |
|---|
| control field |
G76297 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20250704101237.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
250704s2002||||gw ||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
MX-TxCIM |
| 041 ## - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| 072 #0 - SUBJECT CATEGORY CODE |
|---|
| Subject category code |
F01 |
| 072 #0 - SUBJECT CATEGORY CODE |
|---|
| Subject category code |
F30 |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
|---|
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
Look under author name |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Elmogtaba, Elfadl Yousif |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Evaluation of heterosis in durum wheat (Triticum durum Desf.) |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Place of publication, distribution, etc. |
Stuttgart (Germany) : |
| Name of publisher, distributor, etc. |
Universitat Hohenheim, |
| Date of publication, distribution, etc. |
2002 |
| 300 ## - PHYSICAL DESCRIPTION |
|---|
| Extent |
ix, 57 pages |
| 340 ## - PHYSICAL MEDIUM |
|---|
| Material base and configuration |
Printed |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Nationality: SD |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Thesis (M. Sc.) |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
Concern regarding the exploitation of heterosis in wheat to foster durum wheat hybrid as an approach to raise the grain yield potential and stability have promoted this investigation. Ten diverse parental lines, five German lines and five CIMMYT lines; were crossed following incomplete diallel mating scheme to produced 45 F1 hybrids. The parents and their F1 hybrids were planted in a replicated lattice design. Thirteen agronomic traits were investigated for amount of heterosis, predominant gene action and for phenotypic correlation. Heterosis was assessed as a relative mid parent and high parent heterosis. Analysis concerning the predominance of gene action for each trait was conducted using Griffing's method-4 and applying the fixed model. Significant positive heterosis was observed in many traits. The RMPH for grain yield ranged from -0.1 to 84.2% with an average of 40.8% for German intra-pool hybrids, 14.2% for CIMMYT intra-pool hybrids and 36.2% for 45 F1 hybrids. Magnitude of RHPH varied from -21.1 to 75.4%. Average RHPH for grain yield was 32.0% for German hybrids, 11.8% for CIMMYT hybrids and 17.2% for 45 F1 hybrids. The superiority of inter-pool hybrids over intra-pool hybrids with respect to mean performance and heterosis for grain yield and other traits was observed in this study. However, the heterotic expression revealed by these hybrid was highly affected by unusual growing conditions, particularly the high temperature during grain filling period, and unadaptability of German lines to these conditions. It has been generally observed that hybrid between unadapted parents, exhibit more heterosis than hybrid between adapted ones. Heterosis for grain yield could be attributed to grains/spike, grains/spikelet and TGW via HI. Both additive and non additive gene actions played a role in inheritance of investigated traits, however, additive gene action was predominant. None of the parents were good general combiner for all traits studied. However, Duk is the best combiner for HI, grains/spike, grains/spikelet, days to heading and maturity, plant height and culm weight. Line 2716 had the highest positive general combining ability for biomass and spike/m2. For grain yield Cado was the best combiner. Meg exhibited maximum positive general combining ability effect for grains/m2 and spikelets/spike. Snt is the best combiner for TGW. Among 45 F1 hybrids, hybrid Dur x Plat was the best hybrid for grain yield, whereas Meg x 2716 was the best for HI and TGW. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
English |
| 591 ## - CATALOGING NOTES |
|---|
| Affiliation |
0306|AL-Wheat Program |
| 592 ## - HEADER |
|---|
| Header |
DE-UHo 2002 ELMOGTABA M r |
| 595 ## - COLLECTION |
|---|
| Collection |
Thesis Collection |
| 595 ## - COLLECTION |
|---|
| Collection |
Thesis Supported by CIMMYT |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Evaluation |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
7749 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
1145 |
| Topical term or geographic name as entry element |
Heterosis |
| Source of heading or term |
AGROVOC |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Phenotypes |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
3634 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Seed production |
| 9 (RLIN) |
1253 |
| Source of heading or term |
AGROVOC |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Wheat |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1310 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
1130 |
| Topical term or geographic name as entry element |
Genetics |
| Source of heading or term |
AGROVOC |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
1151 |
| Topical term or geographic name as entry element |
Hybrids |
| Source of heading or term |
AGROVOC |
| 651 #7 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME |
|---|
| Geographic name |
Germany |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
14928 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Thesis |
| Source of classification or shelving scheme |
Dewey Decimal Classification |