MARC details
| 000 -LEADER |
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| fixed length control field |
03275nab a22005417a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
G74785 |
| 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 |
20211006081448.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
121211b |||p||p||||||| |z||| | |
| 022 0# - INTERNATIONAL STANDARD SERIAL NUMBER |
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| International Standard Serial Number |
0011-183X |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
MX-TxCIM |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
90-123328 |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Troyer, A.F. |
| 245 00 - TITLE STATEMENT |
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| Title |
Selection for early flowering in corn: |
| Remainder of title |
three adapted synthetics |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Date of publication, distribution, etc. |
1990 |
| 340 ## - PHYSICAL MEDIUM |
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| Material base and configuration |
Printed |
| 500 ## - GENERAL NOTE |
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| General note |
references |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Corn (Zea mays L.) breeders strive to broaden genetic diversity within shorter-season growing areas by selecting for early flowering in late-maturity germplasm. This creates earlier flowering material with most of the characteristics of the late germplasm, thus broadening the diversity of germplasm grown in the shorter-season area. The present study evaluates selection for early flowering in adapted germplasm; relative to flowering date of selection materials, not only place of selection but also place of intended use differs from the usual approach. This study measures the selection response for early flowering in three adapted synthetics. The synthetics were grown at high plant density (87,000 plants ha-1) near Mankato, MN; the earliest 5% to flower (55 of 1100 plants) were selected for four generations, then the original populations and the four cycles for each synthetic were compared in performance trials at 48,300, 62,600 and 75,500 plants ha-1 for 5 yr. Selection response for early flowering for four cycles averaged 0.8 d less to flowering, 10 g kg-1 less grain moisture, 4.0 cm less plant height, 2.7 cm less ear height, 0.2 d less silk delay, 0.15 Mg ha-1 (3%) less yield, and 4% more broken stalks. The decrease in yield due to selection showed close association with decrease in plant size (r = 0.98 , significant at P = 0.01), which probably reduced photosynthetic capacity. Later-flowering synthetics respond more to selection for early flowering than do earlier-flowering synthetics. Shorter-season growing areas with longer, cooler days at flowering favor selection for early flowering. The results indicate that selection for early flowering can help export new, diverse germplasm to shorter-season growing areas, to broaden genetic diversity in the shorter-season area |
| 546 ## - LANGUAGE NOTE |
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| Language note |
English |
| 595 ## - COLLECTION |
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| Collection |
AGRIS Collection |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Agronomic characters |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1008 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Biological development |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Breeding methods |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1030 |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Cereals |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1036 |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Crops |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1069 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Developmental stages |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Economic plants |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Feed crops |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Feed grasses |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Glumiflorae |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Grain crops |
| Miscellaneous information |
AGROVOC |
| 9 (RLIN) |
1926 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Gramineae |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Grasses |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Industrial crops |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Maturation |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Methods |
| 9 (RLIN) |
1178 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Monocotyledons |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Oil crops |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Physiological functions |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Plant developmental stages |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Plant genetics and breeding |
| Miscellaneous information |
NOT IN AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1208 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Plant physiology and biochemistry |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Plants |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Starch crops |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Sugar crops |
| 773 0# - HOST ITEM ENTRY |
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| Title |
Crop science (USA). (Jul-Aug 1990). v. 30(4) p. 896-900 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Koha item type |
Article |