MARC details
| 000 -LEADER |
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| fixed length control field |
02745nam a2200265Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625160203.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 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) |
B-17048 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Water influx characteristics and hydraulic conductivity for roots of Agave deserti Engelm |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Journal of Experimental Botany, 41(4), p.409-415, 1990 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Various plant and environmental factors influence the hydraulic properties for roots, which were examined using negative hydrostatic pressures applied to the proximal ends of individual excised roots of a common succulent perennial from the Sonoran Desert, Agave deserti Engelm. The root hydraulic conductivity, Lp, increased substantially with temperature, the approximately 4-fold increase from 0.5°C to 40°C representing a Q10 of 1.45. Such variations in Lp with temperature must be taken into account when modelling water uptake, as soil temperatures in the root zone of such a shallow-rooted species vary substantially both daily and seasonally. At 20°C, Lp was 2.3 × 10?7 m s¯1MPa¯1for 3-week-old roots, decreasing to about half this value at 10 weeks and then becoming approximately halved again at 6 months. For a given root age, Lp for rain roots that are induced by watering as lateral branches on the established roots (which arise from the stem base)was about the same as Lp for established roots. Hence, the conventional belief that rain roots have a higher Lp than do established roots is more a reflection of root age, as the rain roots tend to be shed following drought and thus on average are much younger than are established roots. Unlike previous measurements on root respiration, lowering the gas-phase oxygen concentration from 21 percent to 0 percent or raising the carbon dioxide concentration from 0.1 percent to 2 percent had no detectable effect on Lp for rain roots and established roots. Lp for rain roots and established roots was decreased by an average of 11 percent and 35 percent by lowering the soil water potential from wet conditions (?soil=0 kPa)to ¯40 kPa and ¯80 kPa, respectively. Such decreases in Lp may reflect reduced water contact between soil particles and the root surface and should be taken into account when predicting water uptake by A. deserti. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
GAS PHASE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
RAIN ROOTS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
ROOT AGE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
SOIL |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
TEMPERATURE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
WATER POTENTIAL |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Nobel, P. S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Schulte, P. J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
North, G. B. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/15KkMHEnaQeHvHYX8QC4JzfbH8B53CuZN/view?usp=drivesdk">https://drive.google.com/file/d/15KkMHEnaQeHvHYX8QC4JzfbH8B53CuZN/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
