Micro-propagated Agave angustifolia plants had 3.8 leaves, the bigger leaf
with 10.6 cm long by 0.9 cm wide, accumulated dry matter 140.2 mg (aerial part)
and 16.7 mg (root) on average. A total of 240 plants were used and 120 of them were
established in trays divided in 50 cavities of 60 cm3
containing a substrate with sandvermiculite
(1:1) the remainder 120 plants were established in sand-perlite (1:1).
The plants in each substrate were separated in five groups to apply them for 70 days
fertigation with some aliquot: 0.05 (C1), 0.33 (C2), 0.66 (C3), 1.0 (C4) and 1.33 (C5)
of Steiner’s universal solution. The experiment was established in accordance to
completely randomized design with factorial arrangement (two substrates × five
nutriments concentrations) given 10 treatments. The experimental unit was one
plant and there were 24 replications per treatment. All the plants were adapted but
the level of plant development and N, P and K accumulated in leaves increased
according the nutriment concentration in the nutritive solution up to the optimum of
0.66 and 1.0. The smallest plants were those established in sand-perlite, fertigated
with C1, and the biggest plants were established in sand-vermiculite, fertigated with
C3, which had 4.5 and 5.3 leaves with 11.0 and 14.7 cm long by 6.7 and 18.2 mm
wide; the accumulated dry matter was 540 and 1020 mg (aerial part); 152 and
374 mg (root); 7 and 15 mg of N; 2.2 and 3.1 mg of P; 7.9 and 28.8 mg of K/g of
foliar dry matter, respectively.
Micro-propagated Agave angustifolia plants had 3.8 leaves, the bigger leafwith 10.6 cm long by 0.9 cm wide, accumulated dry matter 140.2 mg (aerial part)and 16.7 mg (root) on average. A total of 240 plants were used and 120 of them wereestablished in trays divided in 50 cavities of 60 cm3 containing a substrate with sandvermiculite(1:1) the remainder 120 plants were established in sand-perlite (1:1).The plants in each substrate were separated in five groups to apply them for 70 daysfertigation with some aliquot: 0.05 (C1), 0.33 (C2), 0.66 (C3), 1.0 (C4) and 1.33 (C5)of Steiner’s universal solution. The experiment was established in accordance tocompletely randomized design with factorial arrangement (two substrates × fivenutriments concentrations) given 10 treatments. The experimental unit was oneplant and there were 24 replications per treatment. All the plants were adapted butthe level of plant development and N, P and K accumulated in leaves increasedaccording the nutriment concentration in the nutritive solution up to the optimum of0.66 and 1.0. The smallest plants were those established in sand-perlite, fertigatedwith C1, and the biggest plants were established in sand-vermiculite, fertigated withC3, which had 4.5 and 5.3 leaves with 11.0 and 14.7 cm long by 6.7 and 18.2 mmwide; the accumulated dry matter was 540 and 1020 mg (aerial part); 152 and374 mg (root); 7 and 15 mg of N; 2.2 and 3.1 mg of P; 7.9 and 28.8 mg of K/g offoliar แห้งสำคัญ ตามลำดับ
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