Relative Efficacy of Seed priming with Vermiwash, Growth regulators and Bio-controlling agents in response to Germination and Invigoration of Okra (Abelmoschus esculentus L.)

Dipti Kamal¹, Yashodhara Verma^1* and T. N. Tiwari²

¹Department of Biochemistry and Biochemical Engineering, SHIATS-Allahabad.

²ICAR-Directorate of Seed Research, Mau.

Corresponding Author E-mail: yashodhara.verma@shiats.edu.in

DOI : http://dx.doi.org/10.13005/bbra/2376

ABSTRACT: In a field experiment, two varieties of Okra viz: MIS077 and BHINDI No-10 were primed with vermiwash @ 20% and 50% , growth regulators i.e. Indole-3-acetic acid @ 50ppm and 100ppm, Gibberellic acid @ 50ppm and 100ppm, Kinetin @ 50ppm and 100ppm and bio-controlling agents i.e. Trichoderma viride and Trichoderma harzianum v/w for 8 h and one unprimed set was also maintained as control. Seeds after shade drying were tested in three replicates. Observations in respect of seed germination, root and shoot length and seedling dry weight were recorded at initial stage and vigour index I & II was calculated. On the basis of data recorded it is concluded that priming of Okra seeds with all above-mentioned treatments improves seed germination, seedling length, dry weight. Vigour index I which is the multiple of germination % and seedling length and vigour index II that is the multiple of germination % and seedling dry weight was found to be enhanced over unprimed control in both the varieties evaluated. Among all vermiwash @50 % showed significantly superior values for all the above-mentioned characters over rest of treatments.

KEYWORDS: Okra; Seed priming; vermiwash; Growth regulators; bio-controlling agents

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