Year: 2016 | Month: December | Volume 3 | Issue 2
Yield Maximization of Wheat (Triticum aestivum L.) Cultivars through Improved Water Management Strategy
Dhiman Mukherjee
DOI:10.5958/2454-9541.2016.00017.7
Abstract:
A field experiment was carried out in alluvial agro-climate of zone of West Bengal during rabi, 2014-15 and 2015-16under the aegis of Bidhan Chandra Krishi Viswavidyalaya at AB block farm, Kalyani. The experimental work was conducted in split-plot design with three replications. Five different levels of irrigation based on crop growth stages viz., one irrigation at CRI stage (I1), two irrigation at CRI and tillering stage (I2), thee irrigations at CRI, tillering and jointing (I3), four irrigations at CRI, tillering, jointing and booting stage (I4), and five irrigations at CRI, tillering, jointing, booting and milking (I5) were randomly allotted to main-plots, while four timely sown advance wheat genotypes viz., DBW 39, PBW 343, K 0307 and HD 2967 were allocated randomly to sub-plots. More number of ear head/ m2 registered with the I4 and showed parity with the I5 and I3 and statistically better to other main plots treatments. Amongst various genotypes HD 2967 registered higher number of ear head/m2, and was significantly better to other set of treatments. Grain/ear head with various main plots treatments revealed that, I5 has more number compared to other allotted treatments, and showed parity with the I4 and I3 and better to all other treatments. Application of irrigation water at four different growths stages (CRI, tillering, jointing and booting stage (I4)), gave significantly more grain (35.65 q/ha) and straw (51.03 q/ha) yield compared to other allotted subplots treatments, except I5. Observation related to various genotypes revealed that, HD 2967 recorded significantly more grain (34.95 q/ha) and straw (61.05 q/ha) yield, and was at par only with K0307. Economics revealed that, more net return observed with I4 (` 47,087), but highest benefit cost ratio found with the I3 (2.06) and followed by I4 (2.02). Amongst various genotypes, highest net return observed with HD 2967, and this give equal B:C ratio with K0307(1.89). Despite higher yield and good return under five irrigations, the maximum benefit-cost ratio was recorded with thrice irrigated treatment indicating the cost incurred towards extra two irrigations did not result in proportionate yield increase. So it is concluded that under new alluvial zone of West Bengal cultivation of HD 2967 and K0307 with three to four irrigation found to be economical to the farmers.
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