Performanece of Bread Wheat Varieties under different Row Spacing

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A field experiment entitled "Performance of Bread Wheat (Triticum aestivum L) Varieties under different Row Spacing" was conducted at Instructional Farm, Rajasthan College of Agriculture, Udaipur during rabi 2010-11. The experiment consisted of 12 treatment combinations comprising of four spacing (15.0, 17.5, 20.0 and 22.5 cm) and three varieties (GW 322, GW 366 and HI 1544). The experiment was conducted in factorial randomized block design and it was replicated four times. Results of field experiment revealed that among three wheat varieties grown, variety GW 366 gave highest plant height and this variety was found at par with HI 1544 in other growth parameters while significantly higher over GW 322. Wheat variety GW 366 recorded highest number of total tillers, number of effective tillers, number of grains ear-1 and test weight. Maximum grain yield (4.77 t ha-1), straw yield (7.87 t ha-1) and biological yield (12.62 t ha-1) were recorded in variety GW 366 which was significantly higher over GW 322 and HI 1544. Variety GW 366 recorded significantly higher net returns (52812.80 ` ha-1) and B C ratio (2.84) which was found statistically superior over HI 1544.