Abstract:
A pot experiment was conducted at the Iangladesh InsLitute ol Nuclear
ALricutture. Mvrnensingh, during September to November 2007 to investigate flower
production, tiowering pattern, reproductive eliieienev. yield attributes and their
relationship with seed yield in 10 munghean genotypes. The experiment was laid out in
a Completely Randomized Design with Ibur replications. High yielding genotypes
produced greater number ol opened flowers (range 34.2-45.0 plani1 ) having longer
flowering duration (range 15-I8 days) than the low yielding ones. In contrast, low,
yielding genotypes produced fewer opened flowers (range 16.1-2] .0 Plant) and also
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showed shorter flowering duration (range II - IS days) except M13-46 (21 days). I ugh
yielding genotypes had higher flower production rate over time than the low yielding
ones and maximum flower production occurred within 10-12 days after flowering
started. 1-lowever. high yielding genotypes had inferior performance in reproductive
eliieicncy (range 52.6-61 .4Q/0) than in low yielding ones (59.5-812%) indicating that
there Was a scope of increasing yield by improving the reproductive efficiency in high
yielding genotypes in rnungbean. Iligh yielding genotypes maintained increased teal
area. TDM. increased flowers and pod numbers plani'. In contrast, low yielding
genotypes produced shorter and narrower plant canopy, tower flowers and pods plani'.
Seed yield had highly significant and positive correlation with pod number (r = 0.89**)
and pod number depended on leaf area (r = 0.75**), TDM (r = 0.84**). raceme
(r 0.76*) and flower number (r 0.87*t). Genotypes ML3-l7 and ?v113-35 showed
better perlormance in respect of growth, reproductive, yield and yield contributing
characters.
