MARC details
| 000 -LEADER |
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| fixed length control field |
04613nam a22004697a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
G70456 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20211006084810.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
121211s ||||f| 0 p|p||0|| | |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
92-9146-065-6 |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
MX-TxCIM |
| 072 #0 - SUBJECT CATEGORY CODE |
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| Subject category code |
F03 |
| 072 #0 - SUBJECT CATEGORY CODE |
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| Subject category code |
H60 |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
CIS-2674 |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Kanampiu, F.K. |
| Affiliation |
Maize Production Technology for the Future: Challenges and Opportunities. Proceedings of the Eastern and Southern Africa Regional Maize Conference, 6; Addis Ababa (Ethiopia); 21-25 Sep 1998 |
| 110 2# - MAIN ENTRY--CORPORATE NAME |
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| Corporate name or jurisdiction name as entry element |
Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico) |
| 245 00 - TITLE STATEMENT |
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| Title |
Advantages of seed-primed imazapyr for Striga hermonthica control on maize bearing target-site resistances |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Place of publication, distribution, etc. |
Addis Ababa (Ethiopia) |
| Name of publisher, distributor, etc. |
CIMMYT|EARO : |
| Date of publication, distribution, etc. |
1999 |
| 300 ## - PHYSICAL DESCRIPTION |
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| Extent |
p. 172-179 |
| 340 ## - PHYSICAL MEDIUM |
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| Material base and configuration |
Printed |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Seed treatments (a drench after planting, hard and powder coats, as well as priming and planting wet and dry) were tested as cost effective procedures for preventing Striga (witchweed) damage, even in the most heavily infested soils. The use of maize mutants with acetolactate synthase target site resistances available should allow application of the high levels of herbicide needed to effect season-long control. Various salts of imazapyr, a herbicide previously shown to have the least phytotoxicity and the longest persistence, were tested in screenhouse experiments and the magnesium salt proved optimal and was used for most of the field experiments. Two field experiments, one each during the long rains (March-July) and short rains (October- January) were initiated at Kibos in Kenya to determine the optimal formulation and methodology of seed dressing for effective Striga hermonthica control on two maize hybrids with different ALS target site resistances. Seeds were dressed with various rates of magnesium imazapyr and planted when either wet or dry. These treatments were compared with the conventional method of post emergence application, and with drench- dressing of seed in each planting hole with a herbicide solution. Maize seeds treated with imazapyr and planted wet, resulted in significantly reduced plant stand 6 weeks after planting when compared to other treatments, but only during the long rains. Emerged Striga on untreated maize increased from 6 to 12 weeks after planting and started to fall thereafter as maize roots begin to die. There was hardly any Striga emergence for three months after planting on with primed maize seeds even at very low doses. The few Striga plants that emerged and flowered by 12 weeks after planting formed no seed by harvest during both seasons. During the short rains, all treatments except for the controls and hills with 15 g a.i./ha imazapyr application had less than one Striga stalk with flowers and capsules per m2 at 12 weeks after planting. Striga was almost completely suppressed when seed was coated with 30 and 45 g a.i. imazapyr/ha in a commercial fungicide-insecticide seed dust or polyvinyl pyrilidone. Maize seeds treated and planted dry, produced greater maize yield than those planted wet. Seeds treated and planted dry yielded more compared to untreated. Treating seeds with 11 and 14 g. a.i./ha imazapyr and planting them dry, gave 5T/ha, which was 25% higher than the untreated. Applying imazapyr in hills gave higher yield than post emergence application. Since very few Striga plants reach flowering in treated plots, herbicide treatment coupled with other cultural Striga control methods such as hand pulling escapes will go along way in containing and eventually reducing Striga in small scale farms in Africa. Such methods are needed to control Striga in the heavily infested soils of Africa, both as stop-gap until genetic resistance in crops becomes available, and to lower the seed bank levels as most genetic resistance fails at high infestation levels. |
| 536 ## - FUNDING INFORMATION NOTE |
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| Text of note |
Conservation Agriculture Program |
| 546 ## - LANGUAGE NOTE |
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| Language note |
English |
| 591 ## - CATALOGING NOTES |
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| Affiliation |
0103|AL Maize Program|R98-99CIMPU|AGRIS 0102|AJ|3 |
| 594 ## - STAFFID |
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| StaffID |
INT2340 |
| 595 ## - COLLECTION |
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| Collection |
CIMMYT Staff Publications Collection |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Chemical control |
| 9 (RLIN) |
1039 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Herbicides |
| Miscellaneous information |
AGROVOC |
| 9 (RLIN) |
1808 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Imazapyr |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Maize |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1173 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Seed treatment |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
1279 |
| Topical term or geographic name as entry element |
Striga |
| Miscellaneous information |
AGROVOC |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Striga hermonthica |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Weed control |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1308 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Weeds |
| 9 (RLIN) |
1309 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
1314 |
| Topical term or geographic name as entry element |
Zea mays |
| Miscellaneous information |
AGROVOC |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
CIMMYT|EARO |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Gressel, J., |
| Relator term |
coaut. |
| 9 (RLIN) |
513 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Ransom, J.K., |
| Relator term |
coaut. |
| 9 (RLIN) |
271 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Koha item type |
Conference proceedings |