HIGH ANNUAL PRODUCTIVITY OF CERTAIN AGAVES AND CACTI UNDER CULTIVATION
HIGH ANNUAL PRODUCTIVITY OF CERTAIN AGAVES AND CACTI UNDER CULTIVATION
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DOI:
10.1111/j.1365-3040.1992.tb00981.x
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发表时间:
1992-04-01
影响因子:
7.3
通讯作者:
QUERO, E
中科院分区:
文献类型:
--
作者:
NOBEL, PS;GARCIAMOYA, E;QUERO, E
To help ascertain the maximal productivity of plants with Crassulacean acid metabolism, measurements were undertaken on four potentially highly productive CAM species at optimal leaf or stem area indices of 4 to 6. Shoot area and shoot biomass were based on regression equations for material harvested from adjacent plants at 3-month intervals; in addition, the monitored platyopuntias were harvested to determine their dry weight at the end of the observation period. Agave mapisaga and A. salmiana near Mexico City had a productivity averaging 40 Mg ha-1 year-1 and exhibited higher maximal rates of net CO2 uptake than previously reported for CAM plants (29-34-mu-mol m-2 s-1). When irrigated and fertilized daily, Opuntia amyclea and O. ficus-indica in Saltillo, Coahuila, Mexico, had an average productivity of 46 Mg ha-1 year-1. These are among the highest productivities ever reported for any plant species.