Crop geometry studies under different methods of irrigation in oriental pickling melon var. saubhagya
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Date
2003
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Department Of Olericulture, College Of Horticulture, Vellanikkara
Abstract
The present investigation on "Crop geometry studies under different
methods of irrigation in oriental pickling melon variety Saubhagya (Cucumis
melo var. conomon)" was conducted at the Department of Olericulture, College of
Horticulture, Kerala agricultural university, Vellanikara, Thrissur during 2002 -
2003. The field experiment was conducted for two consecutive seasons in the
summer rice fallows of the Agricultural Research Station, Mannuthy, Thrissur
during December, 2002- April, 2003. The experiment was laid out in a split plot
design with two methods of irrigation (drip irrigation @125 Ep and conventional
method @ 45 I pit -I) in the main plot and seven spacings (2.0 x 0.3 m, 2.0 x 0.45
m, 1.5 x 0.3 m, 1.5 x 0.45 m, 1.0 x 0.3 111, 1.0 x 0.45 m and 2.0 x1.5 m) in subplot.
The short duration and less vigorously growing variety Saubhagya sown
during the month of December had less vegetative growth, earliness and high
productivity (19.40 t ha') than February sown crop (17.21 t ha"). None of the
vegetative, flower, fruit and yield characters were significantly influenced by the
two methods of irrigation. However, in the drip irrigation there was saving of
108.5 to 135.2 per cent of water per cropping period, which can be used for
irrigating 1.09 to 1.35 ha of additional land for cultivation of the variety.
The effects of various spacings on vegetative growth and productivity
were significant in both the crops. The crop in closer spacing (1.0 x 0.30 n,Ywas
earliest to harvest the first fruit. Average fruit weight was found maximum at a
closer spacing of 1.0 x 0.45 111, which was on par with 1.0 x 0.30 m. The closest
spacing of 1.0 x 0.30 m accommodating 33,333 plants ha" yielded maximum
fruits (33.93 t ha-I for December sown crop). This was 66 per cent more than that
of the yield from the recommended spacing of 2.0 x 1.5 m. The next best spacing
were 1.0 x 0.45 m and 1.5 x 0.45 m with productivity of 25.38 t ha" and 20.58 t
ha-I, respectively. In February sown crop, production was maximum at 1.0 x 0.45
m (25.12 t ha"), which also accounted for maximum number of fruits plant" and
yield plant". Interaction effects were not significant for majority of economic
characters.
Maximum benefit cost ratio (1.40) was shared by hSs and II S6. In hSs
plants were spaced at a closer spacing of 1.0 x 0.30 m (accommodating 33,333
plants ha') under conventional method of irrigation. This treatment can be
followed where family labour is utilized for cultivation of the variety Saubhagya.
The treatment with spacing of 1.0 x 0.45 m under drip irrigation can also be
suggested for the variety where there is water scarcity and the farmers are capital
rich.
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Citation
172135