Seed Quality Parameters as Influenced by Plant Growth Regulators and Fresh Fruit Harvesting in Okra
Ritu Kumari
Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural University, Sabour, Bhagalpur – 813210, India.
Sangeeta Shree *
Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural University, Sabour, Bhagalpur – 813210, India.
Vijay Kumar Singh
Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural University, Sabour, Bhagalpur – 813210, India.
Arun Kumar
Department of Seed Science and Technology, Bihar Agricultural University, Sabour, Bhagalpur – 813210, India.
Sanjay Sahay
Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural University, Sabour, Bhagalpur – 813210, India.
Pushpam Patel
Department of Horticulture (Vegetable and Floriculture), Bihar Agricultural University, Sabour, Bhagalpur – 813210, India.
*Author to whom correspondence should be addressed.
Abstract
The research work was conducted to find out the most suitable level of plant growth regulator (PGR) and stage of plant for spray as well as fresh fruit pickings to increase the seed yield of okra. The experiment was laid out in randomized block design (factorial) with three replications to at the Vegetable seed production area BAU, Sabour, Bhagalpur. Present investigation was framed with Sixty (60) treatments consisting of 10 PGR’s level, P0 (distilled water), GA3 (100 ppm, 150 ppm and 200 ppm), NAA (100 ppm, 150 ppm and 200 ppm), IAA (30 ppm, 60 ppm and 90 ppm), 2 Stage of plant for spraying of PGRs, S1 (4 leaf stage), S2 (4 leaf stage + Flower initiation) and 3 pickings of fruits, H1 (3 Pickings of fresh fruits + rest fruits left for seed production), H2 (6 Pickings of fresh fruits + rest fruits left for seed production), H3 (No pickings of fresh fruits + all fruits left for seed production. It was observed that the different levels of treatments affected the seed quality attributes of the crops. Among the treatments, P2S1H1 treatment was recorded maximum Germination % (86.36), Seedling length (31.04 cm), Vigour index-I (2787.73), Vigour index-II (5.27) and seed viability test (88.00). Thus, P2S1H1 was superior among all treatments.
Keywords: Okra, plant growth regulators, seed quality, fruit pickings