MARC details
| 000 -LEADER |
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| fixed length control field |
02812nab a22003017a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
58561 |
| 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 |
20211110153730.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
160212s2017 xxu|||p|op||| 00| 0 eng d |
| 024 8# - OTHER STANDARD IDENTIFIER |
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| Standard number or code |
https://doi.org/10.1111/jac.12196 |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
MX-TxCIM |
| 041 ## - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
eng |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
4720 |
| Personal name |
Cabrera-Bosquet, L. |
| 245 10 - TITLE STATEMENT |
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| Title |
Kernel 18 O reflects changes in apical dominance and plant transpiration in tropical maize |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Place of publication, distribution, etc. |
USA : |
| Name of publisher, distributor, etc. |
Wiley-Blackwell, |
| Date of publication, distribution, etc. |
2017. |
| 500 ## - GENERAL NOTE |
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| General note |
Peer review |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Modification of source–sink ratios in tropical maize through detasseling is an ancestral agronomical practice used for increasing yields under stressful conditions. However, the mechanisms behind such effect are not well understood given the difficulties to determine physiological processes such as photosynthesis and whole-plant transpiration in the field. We have tested the potential ability of kernel δ18O to assess differences in grain yield (GY) through changes in plant transpiration caused by the modification of water availability and source–sink modification treatments, (including removal of the tassel and different numbers of leaves) in three tropical maize hybrids differing in drought tolerance. Drought-tolerant genotypes displayed higher yields and lower kernel δ18O values than the drought-susceptible genotype under both well-watered (WW) and water-stressed (WS) conditions. Detasseling caused a positive increase in GY under well-watered (up to 8%) and water-deficit conditions (up to 36%). Reduction in leaf area (source) through defoliation treatments caused a large impact on GY showing a trade-off between maintaining a photosynthetic versus transpiring leaf area. Thus, while a reasonable reduction in leaf area significantly improved plant water availability (as shown by lower kernel δ18O values) and consequently GY under water deficit (up to 40%), it caused a maximum reduction of 25% in GY under well-watered conditions. Variations in GY were significantly (p < .05) correlated with changes in δ18O under both well-watered (r = −.67) and WS conditions (r = .75 and .82). Our results also reinforce the utility of δ18O measured in mature kernels as a powerful ecophysiological tool for assessing genotypic differences in apical dominance, transpiration and yield under both WW and WS conditions in tropical maize. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
Text in English |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| 9 (RLIN) |
1168 |
| Topical term or geographic name as entry element |
Kernels |
| Miscellaneous information |
AGROVOC |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Maize |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1173 |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
4721 |
| Topical term or geographic name as entry element |
Transpiration |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
4722 |
| Personal name |
Grieder, C. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
4724 |
| Personal name |
Alvarez Prado, S. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Sánchez, C. |
| 9 (RLIN) |
4725 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
1436 |
| Personal name |
Araus, J.L. |
| 773 0# - HOST ITEM ENTRY |
|---|
| Record control number |
u444504 |
| International Standard Serial Number |
0931-2250 (Print) |
| Place, publisher, and date of publication |
USA : Wiley-Blackwell |
| Title |
Journal of Agronomy and Crop Science |
| Related parts |
v. 203, no. 4, p. 277-285 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Article |