MARC details
| 000 -LEADER |
|---|
| fixed length control field |
02735nam a2200289Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20250625160147.0 |
| 040 ## - CATALOGING SOURCE |
|---|
| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
|---|
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-16213 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Spine influences on PAR interception, stem temperature, and nocturnal acid accumulation by cacti |
| 490 0# - SERIES STATEMENT |
|---|
| Volume/sequential designation |
Plant, Cell & Environment, 6(2), p.153-159, 1983 |
| 520 3# - SUMMARY, ETC. |
|---|
| Summary, etc. |
Abstract. The influence of spines on nocturnal acid accumulation was examined for two Crassulacean acid metabolism plants, the barrel cactus Ferocactus acanthodes (Lemaire)Britton & Rose var. lecontei (Engelm.)Lindsay and the cylindropuntia Opuntia bigelovii Engelm. var. bigelovii. The ambient photo?synthetically active radiation (PAR)required for 90 per cent saturation of nocturnal acid accumulation by O. bigelovii was 23 mol m?2 d?1 for stems that were 32 per cent shaded by spines and 16 mol m?2 d?1 when the spines were removed. For F. acanthodes, 90 per cent saturation occurred for an ambient PAR of 45 mol m?2 d?1 where the stem was 78 per cent shaded by spines and 21 mol m?2 d?1 when the spines were removed. For comparison, the ambient PAR averaged 21 mol m?2 d?1 at various times of the year and stem positions for O. bigelovii fully exposed to solar irradiation. Although spines can reflect some PAR toward the stem surface, their presence decreases the PAR incident on the stem surface, thereby decreasing the nocturnal acid accumulation. For O. bigelovii, periodically removing the spines led to a 60 per cent greater increase in stem volume over 21/2 years. The effect of variation in spine?shading on stem surface temperature was determined for F. acanthodes using computer simulations and an energy budget model. A substantial reduction in daytime stem temperatures and a smaller increase in night?time temperatures as the spine?shading increased had very little influence on nocturnal acid accumulation for both winter and summer days. Thus, the main effect of spines on the metabolism of cacti is apparently to reduce the PAR incident on the stem surface and thereby to reduce productivity. Copyright © 1983, Wiley Blackwell. All rights reserved |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
CACTACEAE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
CRASSULACEAN ACID METABOLISM (CAM) |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
ECOPHYSIOLOGY |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
FEROCACTUS ACANTHODES |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
HERBIVORY |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
OPUNTIA BIGELOVII |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
PHOTOSYNTHESIS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
PHOTOSYNTHETICALLY ACTIVE RADIATION (PAR) |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
SPINES |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name entry element |
TEMPERATURE |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Nobel, P.S. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
|---|
| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1OwPlsmBDgJLRCkVnHMvfryMtI-ziPsCw/view?usp=drivesdk">https://drive.google.com/file/d/1OwPlsmBDgJLRCkVnHMvfryMtI-ziPsCw/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
