Bio-efficacy of Sorghum Extract and Herbicide on Growth, Yield and Quality of Wheat (Triticum aestivum L.)
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Date
2022-07-20
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Agriculture University, Jodhpur
Abstract
Bio-efficacy of Sorghum Extract and Herbicide on Growth, Yield
and Quality of Wheat (Triticum aestivum L.)
Devi Lal Kikraliya*
(Scholar)
Dr. U.N. Shukla**
(Major advisor)
ABSTRACT
A field experiment entitled “Bio-efficacy of sorghum extract and herbicide
on growth, yield and quality of wheat (Triticum aestivum L.)” was conducted at
Instructional Farm, College of Agriculture, Jodhpur (Rajasthan) during rabi season of
2021-22. Field experiment was laid out in randomized block design (RBD) with
eleven treatment combinations and replicated thrice. The treatments taken in the
investigation were W1-sorghum extract (1:1), W2- Sorghum extract (1:2), W3-
Sorghum extract (1:3), W4-Sorghum extract (1:4), W5-Ready mix of clodinafop +
metsulfuron 64 g/ha, W6-Sorghum extract (1:1) + ready-mix of clodinafop +
metsulfuron 64 g/ha, W7- Sorghum extract (1:2) + ready-mix of clodinafop +
metsulfuron 64 g/ha, W8- Sorghum extract (1:3) + ready-mix of clodinafop +
metsulfuron 64 g/ha, W9- Sorghum extract (1:4) + ready-mix of clodinafop +
metsulfuron 64 g/ha, W10- Weed free and W11- Weedy check. According to
treatments, different ratio of sorghum extract applied either alone or with ready-mix
herbicide. Results indicated that post-emergence and sequential application of
sorghum extract (1:3) + ready-mix of clodinafop + metsulfuron 64 g/ha (W8)
significantly reduced weed density and dry weight of C. murale L., C. album L.,
Rumex dentatus L., Asphodelus tenuifolius L. and Cyperus rotundus L. results in
obtaining higher weed control efficiency at all the growth stages of crop that
improved weed index and also lesser nutrient removals (N, P, K) recorded at 60 DAS
and at harvest. Owing to reduction in weed infestation which improved growth
attributes viz. final plant population including tillers (442/m2
) at harvest, plant height
(51.69, 83.72 and 90.49 cm), number of tillers (464, 453 and 442/m2
), dry matter
accumulation (374.24, 781.46 and 964.44 g/m2
) at 60, 90 and at harvest, respectively,
while SPAD chlorophyll meter reading (51.23 and 50.09) was significantly recorded
at 60 and 90 DAS, respectively due to application of sorghum extract (1:3) + ready mix of clodinafop + metsulfuron 64 g/ha (W8) as compared to their higher
concentration of sorghum extracts applied either alone or with ready-mix herbicide
including weedy check (W11) during field experimentation at all growth stages except
30 DAS, where none of the treatments showed significant effects.
Similarly, significantly higher number of effective tillers (414/m2
), length of
spike (17.50 cm), number of grains/spike (43.33) and 1000-grain weight (44.45 g)
were recorded under post-emergence and sequential application of sorghum extract
(1:3) + ready-mix of clodinafop + metsulfuron 64 g/ha (W8) resulted in production of
higher grain yield (4543 kg/ha.), straw yield (5103 kg/ha.) and biomass yield (9646
kg/ha.) and also showed their efficacy in recording higher protein yield (438 kg/ha)
and contents of N, P and K in grains and straw as well as their uptakes by wheat. Improved in grain yield that resulted in higher monetary advantages in
terms of gross return (`1,20,351/ha), net return (` 87,830/ha) and B: C ratio (3.70) by
the application of sorghum extract (1:3) + ready-mix of clodinafop + metsulfuron 64
g/ha (W8) as compared to weedy check (W11). Among alone application of sorghum
extracts, application of sorghum extracts (1:3) significantly reduces weeds and
recorded higher growth, yield attributes, yield, nutrients uptakes and economics as
well as higher microbial population as compared weedy check (W11).
Description
Bio-efficacy of Sorghum Extract and Herbicide on Growth, Yield and Quality of Wheat (Triticum aestivum L.)
Keywords
Citation
KIKRALIYA DEVI LAL2022. Bio-efficacy of Sorghum Extract and Herbicide on Growth, Yield and Quality of Wheat (Triticum aestivum L.). M.Sc. thesis, College of Agriculture, Agriculture University Jodhpur