EFFECT OF PLANT GROWTH REGULATORS ON GROWTH AND YIELD OF FENUGREEK (Trigonella foenum-graecum L.) 2911
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Date
2019-06
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JAU, JUNAGADH
Abstract
A field experiment was conducted on clayey soil at the instructional farm,
College of Agriculture, Junagadh Agricultural University, Junagadh (Gujarat) during
the rabi season of 2017-18 in randomized block design with three replications,
comprised with 9 treatments of four plant growth regulators each of two level viz.,
GA3 (25 and 50 ppm), NAA (25 and 50 ppm) and Seaweed (5% and 10%),
triacontanol (250 and 500 ppm) foliar spray at 25 & 50 DAS and control (water
spray).
The results revealed that foliar application of GA3 50 ppm at 25 and 50 DAS
recorded significantly higher values of growth parameters viz., plant height, primary
and secondary branches per plant and yield attributes viz., number of pods per plant,
number of seeds per pod, length of pod , number of seeds per plant and test weight
along with seed and stover yields and biological yield over control (water spray),
which was comparable and significantly not different from foliar application of GA3
25 ppm and NAA 50 ppm in respect of seed and stover yields. Considerable
improvement in nutrient content (N, P and K) and their uptake by seed and stover of
fenugreek were also noticed with foliar application of GA3 50 ppm at 25 and 50 DAS
followed by GA3 25 ppm as compared to control (water spray). The economics of
plant growth regulator treatments also indicates that foliar application of GA3 50 ppm
at 25 and 50 DAS was more profitable in terms of net returns ( 50937 ha-1
) in
comparison to rest of the treatments.
In general, better crop yield and higher net returns per hectare could be
obtained from fenugreek by foliar application of GA3 50 ppm at 25 and 50 DAS.