3.3. CO2 and C2H4 production from buds of various sizes grown
at different forcing temperatures
CO2 production from buds from plants grown at 21 ◦C/16 ◦C was
higher than at 24 ◦C/21 ◦C (Fig. 3). In the largest buds (3.70 g at
21 ◦C/16 ◦C and 3.60 g at 24 ◦C/21 ◦C), removal oftepals and oftepals
and anthers did not affect the pattern of CO2 production and did
not differ greatly from buds harvested from plants grown at different
forcing temperatures. However, there was a CO2 peak around
hours 95–140 when tepals were removed in 2.06 g buds grown
at 21 ◦C/16 ◦C. When the tepals and the anthers were removed in
three larger sizes of flower buds regardless of forcing temperatures,
leaving ovary, style, and filaments attached to the pedicel, CO2 production
remained low and steady over the course of measurements.
In buds (2.56 g) grown at 24 ◦C/21 ◦C and in buds (2.44 g) grown
at 21 ◦C/16 ◦C with tepals intact or with tepals removed, CO2 production
steadily decreased after an initial peak between 19 and
38 h. However, CO2 production remained low and constant without
showing the initial peak in smaller buds (1.42 g and 2.06 g
grown at 21 ◦C/16 ◦C and 1.31 g and 1.76 g grown at 24 ◦C/21 ◦C).
Ethylene was detected only in the smallest buds when anthers
were not removed, which was more prominent in buds (1.31 g)
which were collected from plants forced at 21 ◦C/16 ◦C (Fig. 3). An
ethylene peak was detected following the peak of CO2, regardless
of whether or not the tepals were removed.
3.3. CO2 and C2H4 production from buds of various sizes grownat different forcing temperaturesCO2 production from buds from plants grown at 21 ◦C/16 ◦C washigher than at 24 ◦C/21 ◦C (Fig. 3). In the largest buds (3.70 g at21 ◦C/16 ◦C and 3.60 g at 24 ◦C/21 ◦C), removal oftepals and oftepalsand anthers did not affect the pattern of CO2 production and didnot differ greatly from buds harvested from plants grown at differentforcing temperatures. However, there was a CO2 peak aroundhours 95–140 when tepals were removed in 2.06 g buds grownat 21 ◦C/16 ◦C. When the tepals and the anthers were removed inthree larger sizes of flower buds regardless of forcing temperatures,leaving ovary, style, and filaments attached to the pedicel, CO2 productionremained low and steady over the course of measurements.In buds (2.56 g) grown at 24 ◦C/21 ◦C and in buds (2.44 g) grownat 21 ◦C/16 ◦C with tepals intact or with tepals removed, CO2 productionsteadily decreased after an initial peak between 19 and38 h. However, CO2 production remained low and constant withoutshowing the initial peak in smaller buds (1.42 g and 2.06 ggrown at 21 ◦C/16 ◦C and 1.31 g and 1.76 g grown at 24 ◦C/21 ◦C).Ethylene was detected only in the smallest buds when antherswere not removed, which was more prominent in buds (1.31 g)which were collected from plants forced at 21 ◦C/16 ◦C (Fig. 3). Anethylene peak was detected following the peak of CO2, regardlessof whether or not the tepals were removed.
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