Effect of transplanting time and planting geometry on growth, yield and quality of semi-dwarf Basmati rice (Oryza sativa L.)
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Date
2017
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CCSHAU
Abstract
A field experiment was conducted during summer (kharif) season of 2016 at College of Agriculture
(Kaul), CCS Haryana Agricultural University, Hisar, to study Effect of transplanting time and planting geometry
on growth, yield and quality of semi-dwarf Basmati rice (Oryza sativa L.). The experiment was laid out in split
plot design with four replications keeping three time of transplanting viz., 1st week of July, 3rd week of July and
1st week of August in main plots and four planting geometries (15x15cm, 20x15cm, 30x20cm and Farmer’s
practice) in sub plots.
There was significant variation among different time of transplanting in respect of growth. Growth
parameters were maximum in paddy transplanted in 1st week of July as compared to rest of the cultivars. The
yield attributes as productive tillers/m2, panicle length and numbers of grains per panicle were significantly
superior in paddy transplanted in 1st week of July. Early transplanting of paddy during 1st week of July proved
significantly superior in terms of grain, straw and biological yield when compared to later transplanting i.e. 3rd
week of July and 1st week of August. The difference was also significant between 3rd week of July and 1st week
of August transplanting. The quality parameters of paddy transplanted in 1st week of July were significantly
lower than delayed transplanting. Highest hulling and milling percent and head rice recovery was recorded with
3rd week of July transplanting which was statistically at par with 1st week of August transplanting. Early
transplanting of paddy (1st week of July) had higher cost of cultivation, net returns and B:C ratio than delayed
planting.
Significantly taller plant height, greater number of tillers/m2 and higher dry matter accumulation was
recorded with closer planting geometry (15x15cm). Growth parameters of 20x15cm planting geometry were
higher than 30x20cm and transplanting with farmer’s practice. Closer planting geometry (15x15cm) produced
significantly more effective tillers/m2 and longer panicles. Panicle length and number of productive tillers of
20x15cm planting geometry were also significantly higher than wider planting geometry (30x20cm and farmer’s
practice). The grain, straw and biological yield of narrow (15x15cm and 20x15cm) planting geometry were
found to be significantly higher than wide (30x20cm and Farmer’s practice) planting geometry. There was no
significant difference in quality parameters of paddy with respect to planting geometry. Closer planting
geometry of 15x15cm had highest cost of cultivation and produced highest gross returns but 20x15cm produced
highest net returns. Low cost of cultivation of wider planting geometries (30x20cm and farmer’s practice)
produced higher B:C ratio than narrow spaced geometries (15x15cm and 20x15cm).
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