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EFFECT OF PINCHING AND PLANT GROWTH REGULATORS ON GROWTH AND YIELD OF FENUGREEK (Trigonella foenum-graecum L.)

KrishiKosh

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Title EFFECT OF PINCHING AND PLANT GROWTH REGULATORS ON GROWTH AND YIELD OF FENUGREEK (Trigonella foenum-graecum L.)
 
Creator V. KRISHNA VENI
 
Contributor Dr. T. PADMALATHA
 
Subject pinching and plant growth regulators on growth and yield , plant growth regulators, foliar spraying of GA3 , DAS with application of NAA
 
Description The present investigation entitled “Effect of pinching and plant growth regulators on growth and yield of fenugreek (Trigonella foenum-graecum L.)” was carried out at Vegetable Research Station, Rajendranagar, Hyderabad during Rabi 2013-14. The fenugreek cv. APHU Methi-1 was used for conducting the experiment. The experiment was laid out in Randomized Block Design with factorial concept comprising 20 treatments and replicated thrice. The treatments consisted of pinching as one factor containing four pinching treatments viz., No pinching (P0), single pinching at 25 days after sowing (P1), single pinching at 45 days after sowing (P2), double pinching at 25 and 45 days after sowing (P3) and application of plant growth regulators was taken as another factor containing five treatments viz., Control (Water spray) (G0), 50 ppm gibberellic acid (G1), 75 ppm gibberellic acid (G2), 50 ppm naphthalene acetic acid (G3) and 75 ppm naphthalene acetic acid (G4). Five plants were selected at random from each treatment and tagged for recording biometric observations. The data were recorded at an interval of 30, 60 and 90 DAS for assessing parameters like plant height (cm), number of branches per plant, number of days taken to flower initiation, number of days taken to 50% flowering, number of flowers per plant, percent of pod setting, number of pods per plant, length of pod (cm), number of seeds per pod, seed yield per plant (g), seed yield per plot (g), seed yield per hectare (q), test weight (g), number of days to seed maturity, fresh and dry weight per plant (g) and benefit cost ratio. The results emanated from the experiment recorded significantly maximum plant height, early flower initiation, early 50 per cent flowering, early maturity and maximum test weight with no pinching (P0) treatment. Single pinching at 25 DAS (P1) recorded significantly maximum number of branches, number of flowers, number of
pods, length of pod, number of seeds per pod and seed yield whereas all the yield attributing parameters like number of flowers, number of pods, length of pod, number of seeds per pod and seed yield were recorded to be significantly minimum with double pinching at 25 and 45 DAS (P3). Maximum fresh weight and dry weight at 30 DAS were observed with single pinching at 45 DAS (P2). At 60 and 90 DAS maximum fresh and dry weights were observed with double pinching at 25 and 45 DAS (P3). Among the application of plant growth regulators, foliar spraying of GA3 50 ppm (G1) thrice (25, 45 and 65 DAS) resulted in best performance of all parameters like plant height, number of branches, number of flowers, number of pods, length of pod, number of seeds per pod, seed yield, fresh weight and dry weight of fenugreek. Early flower initiation and early maturity was observed with application of GA3 75 ppm (G2). Among the interactions between pinching and plant growth regulators, the treatment of no pinching with application of GA3 50 ppm (P0G1) resulted in maximum plant height and test weight. Maximum number of branches and yield attributes like number of flowers, number of pods, length of pod and seed yield were recorded with single pinching at 25 DAS and application of GA3 50 ppm (P1G1). The economics of the experiment reveal that the pinching at 25 DAS with application of NAA 50 ppm (P1G3) gave highest B: C ratio (1.88).
 
Date 2016-07-26T12:24:17Z
2016-07-26T12:24:17Z
2014-06
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/69903
 
Language en
 
Format application/pdf
 
Publisher Dr. Y.S.R. HORTICULTURAL UNIVERSITY