Abstract
<p>Field experiments to<br />identify the flowering ability, flowering duration, percentage<br />of flower abortion, and yield potential of several soybean<br />varieties were conducted at two environments at Kendalpayak-<br />Malang Research Station in April-July 2006 (dry season I) and<br />Genteng-Banyuwangi Research Station (dry season II) in July-<br />October 2006. A total of 20 soybean varieties were evaluated<br />by using randomized complete-blocks design with three<br />replications. The plot size was 0.8 m x 4.5 m with plant<br />spacing 40 cm x 15 cm. The rate of fertilizers applied was 50<br />kg urea, 100 kg SP36, and 75 kg KCl per ha. Plant control was<br />conducted intensively as recommended. Several characters<br />observed were time to flower, flowering duration, number of<br />flower, number of pod, number of filled pod, number of empty<br />pod, seed yield/plant, and 100 seed weight. Combined analysis<br />of variance show that all characters oberved were significantly<br />affected by varieties. Flower abortion of soybean varieties<br />range from a low of 6.6% for Lawit to a high of 39.1% for<br />Kawi. Lawit variety was used as high yielding potential parent<br />which has lowest percentage of flower abortion (6.6%) and<br />highest percentage of flower to pod (93.4%).</p>
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