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formulation had greater FW, plant height, and leaf area compared with the control. All the coated treatments had enhanced plant development than the control, based on the percentage of plants with five or six leaves (L 5 D, L 6 D) and SPAD readings. There was

. SPAD reading and gas exchange. Leaf greenness (or relative chlorophyll content) of all plants was measured using a handheld SPAD chlorophyll meter (Minolta Camera Co., Osaka, Japan) 1 week before harvest. For each plant, four leaves evenly distributed

fungicide treatments in either experiment. Weeds were kept under control by hand-weeding. In both years, regular cultural practices were applied uniformly through all plots. Chlorophyll measurements (SPAD readings) A portable chlorophyll meter (SPAD-502

, as determined by leaf SPAD readings, for plants receiving the WWRI and RI treatments were greater than WW treatment, which was similar to RIWW treatment ( Table 2 ). Stomatal conductance of sneezeweed was similar between treatments except RI was lower

·m –1 ( Valdez-Aguilar et al., 2011 ). Chlorophyll content . The chlorophyll content decreased as EC levels increased ( Fig. 2C ). There was a linear correlation ( P < 0.0001) between SPAD readings of rose of sharon and EC levels. The SPAD readings of

). Measurements were made before ‘Fu San’ bolted (35 to 42 d after transplanting with a stem length of 0.5 to 1.2 cm). SPAD measurements were made on fully expanded leaves and averaged over three readings per plant. The yield was calculated by weighing the plants

ester at the 25% rate had lower SPAD readings compared with the control (data table not shown). This could be the result of leaf yellowing on seedlings treated with 2,4-D ester. In July and August, herbicide treatment did not affect leaf greenness

nm. Readings were taken from every plant by randomly selecting five youngest, fully expanded leaves from a plant and taking three readings per leaf. The final SPAD meter reading of a plant was the average of 15 readings. Flowering performance during

validation of foliar nutrient sampling methods of breadfruit in Hawai‘i. We created a categorical assessment of potential productivity as follows. We measured chlorophyll using a chlorophyll meter (SPAD 502 Plus; Spectrum Technologies, Aurora, IL) and

on many factors such as leaf age, the level of salinity, and duration of salinity stress exposure in addition to species and genotype. Chlorophyll fluorescence and chlorophyll content (SPAD reading). Chlorophyll fluorescence has been proved to be