Authors: Ful Mia, A.S.M. Iqbal Hussain, Shamim Mia, Md. Zahid Hassan*
The experiment was conducted at the Agronomy Field Laboratory
of Patuakhali Science and Technology University, Patuakhali during January-June
session of 2018 to evaluate the effect of variety and spacing on the resources
use efficiency of maize. The experimental treatments comprised three maize
varieties (V1= Proline, White Maize), V2=Pioneer and V3=Sunshine); and three
spacings (S1=20 cm, S2=25 cm and S3=30 cm).The effect of variety, spacing and
their interactions were significant. The interaction treatment S2V2 showed significantly the highest values
in plant height (256.67cm), number of leaf plant-1 (14.27), stem girth
(2.64cm), stomatal conductance rate (1853.33), cob length (19.50 cm), cob
breadth (5.00), number of grains row-1(38.47), number of grains cob-1(583.67),
cob weight (146.33 g), grain yield (6.69 t ha-1), stover yield (8.23 t ha-1),
biological yield (14.87 tha-1). But the interaction treatment S1V2 showed the
highest leaf area index (3.95 cm2), number of rows cob-1(16.13). On the other
hand, the interaction treatment S1V1 showed the highest PAR above canopy
(1819.33), harvest index (45.77 %) and S2V1treatment showed the highest ground
PAR (349.33), 1000 grain weight (343.33g). The interaction treatment S2V3
showed the highest chlorophyll content (96.67). It may be concluded that the
variety Pioneer planted 25 cm apart was more productive compared to others.
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