Response of Indian mustard (Brassica juncea L.) varieties to different irrigation levels and anti-transpirants
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Date
2021-10
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CCSHAU, Hisar
Abstract
The present study entitled “Response of Indian mustard (Brassica juncea L.) varieties to
different irrigation levels and anti-transpirants” was conducted on loamy sand soil during 2017-18 and
2018-19 at Regional Research Station, Bawal, CCS Haryana Agricultural University, Hisar.
Twenty-four treatment combinations comprising of three levels of irrigation viz., Control (I1), One
irrigation at 40 DAS (I2), Two irrigation at 40 and 75 DAS (I3), two varieties viz., RH-725 (V1) and
RH-749 (V2) and four levels of anti-transpirants viz., Control (A1), PMA @ 250 ppm at 45 and 90 DAS
(A2), kaolin 6 % at 45 and 90 DAS (A3) and PMA @ 250 ppm + kaolin (6%) at 45 and 90 DAS (A4)
were evaluated in split plot design with three replications by keeping levels of irrigation and varieties
as main plot and anti-transpirants in sub plots. From the results of two-year field investigation during
rabi 2017-18 and 2018-19, it was highlighted that the significantly higher growth, yield and yield
parameters as well as CU, WUE, net realization and B: C ratio of Indian mustard (Brassica juncea L.)
could be obtained with application two irrigations, each at 40 and 75 DAS as compared to over one
irrigation at 40 DAS (I2) and control (I1), respectively during 2017-18 and 2018-19. The mustard crop
sown under two irrigations exhibited 18.3 and 14.1 % higher seed yield over I2 and 39.8 and 43.0 %
higher seed yield over I1, respectively during both years. The genotype RH-749 proved to be best as
compared to RH-725 in terms of all morpho-physiological and yield traits as well as CU, WUE, net
return and B: C ratio during both years. Whereas, application of PMA @ 250 ppm + kaolin (6%) at 45
and 90 DAS (A4) recorded significantly higher growth, yield and yield parameters as well as CU,
WUE, net realization and BCR followed by kaolin 6 % at 45 and 90 DAS (A3) and PMA @ 250 ppm at
45 and 90 DAS (A2) superior over control (A1), respectively during both years of experimentation.
Thus, maximum seed yield, CU, WUE, net realization and B: C ratio can be achieved by
sowing the mustard variety RH-749 along with application of two irrigations at 40 and 75 DAS and
PMA @ 250 ppm + kaolin (6%) at 45 and 90 DAS on loamy sand soils under the agro-climatic
condition of Bawal, Rewari, Haryana.