The selected forty yardlong bean lines in the sixth generation (F6) of the cross
between two parental cultivars were recorded to compare with four cultivars, viz. Bangpra
Purple, Bangpra #2 (parental cultivars), Lamnamchee, and Tarnthong (commercial cultivars).
The results showed that the forty lines significantly differed in pod length, number of seeds per
pod (p<0.01), and yield per hectare (p<0.05). The means for pod length and yield of the lines
were significantly higher than the control. Eight lines expressed the pod length ranging from
70.35 to 75.85 cm that are longer than the parent (69.50 cm of Bangpra #2) but not significantly
different (p>0.05). Twenty-one lines possessed pod lengths from 61.41 to 75.85 cm that are
significantly different (p>0.05) from the commercial cultivar (52.52 cm). The Bangpra #2
cultivar gave the significantly highest yield (19.16 t/ha) compared to the control. There were
four promising lines for possessing yields ranging from 20.60 to 22.80 t/h and tended to get
more value than the Bangpra #2 cultivar. Most of the selected F6-lines were proven to have
better performance than the commercial cultivars, and some cultivars had better performance
than their parents. Thus, these promising lines would be selected for yield trials in the next
generation.
Keywords
asparagus bean, cross, generation, performance
INTERNATIONAL JOURNAL OF AGRICULTURAL TECHNOLOGY
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