| Title | Rate of leaf production and senescence and effect of leaf age on net gas exchange in creosotebush |
| Publication Type | Journal Article |
| Year of Publication | 1977 |
| Authors | Syvertsen J.P, Cunningham GL |
| Journal | Photosynthetica |
| Volume | 11 |
| Pagination | 161-166 |
| Date Published | 1977 |
| Call Number | 00332 |
| Keywords | article, articles, carbon dioxide,Larrea, journal, journals, Larrea, leaf senescence, Larrea,CO2 gas exchange, Larrea,phenology, Larrea,photosynthesis, photosynthesis,Larrea, physiology,Larrea, productivity,Larrea |
| Abstract | In growth chamber grown individuals of creosotebush (Larrea tridentata DC. Cov.), the dark respiration, net photosynthesis, internal leaf resistance and stomatal and cuticular resistances to H2O and CO2 were not affected (P<0.05) by leaf age. Net photosynthesis did appear to be reduced in leaves older than 47 d, but this apparent reduction was obscured by the standardization of the photosynthetic rates of change of CO2 and stomatal and cuticular resistances to CO2. An increase in the apparent rate of leaf senescence and subsequent abscission coincide chronologically with an increase in the rate of new leaf production. |
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Science-based management strategies for sustainability of agriculture and other land uses
