PJB-1984-25
Performance of two wheat ultivars in 1:1 mixtures with respect to grain yield and yield components.
Mohammad ali chang
Abstract
Plant competition studies with respect
to grain yield and yield components were made on two spring wheat cuktivars , highbury and sappo grown in monocultures and in 1:1 mixtures at a range of densities (237 to 920 plant per sq.meter) and in different planting patterns using systematic fan design. Number of spikes and spikelets per plant and number and weight of grains per plant varied with the
density for both the cultivars. Number of spikes was the most plastic and individual grain weight, the least plastic of the characters affected by density . generally , sappo was more vigorous and aggressive. Its aggressivvity , measured for yield components , increased with increasing degree of mixing of the cultivars..planting arrangements
significantly affected the performance of cultivars but the differences did
not always follow the trend from maximum (1 x1 planting pattern) to
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