INFLUENCE OF PROVENANCE, FUNGICIDES AND FOLIAR APPLICATION OF MICRONUTRIENTS ON PLANT GROWTH, SEED YIELD AND QUALITY OF HYBRID RICE KRH-4

SIDDARUDH, K. S.

INFLUENCE OF PROVENANCE, FUNGICIDES AND FOLIAR APPLICATION OF MICRONUTRIENTS ON PLANT GROWTH, SEED YIELD AND QUALITY OF HYBRID RICE KRH-4

Date

2019-02-20

Authors

SIDDARUDH, K. S.

Publisher

UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU

Abstract

Experiment were carried out to study the influence of different provenance and foliar application of micronutrients on seed yield and quality of hybrid rice KRH-4. Among the provenance Karimnagar found to be best suited for seed production due to optimum climatic conditions results in seed quality attributes like germination (92.00 %), test weight (16.87 gm), Mean seedling length (27.22 cm), SV-I and SV-II (2490 and 809 respectively). The effect of Zn and B as foliar spray on growth and yield of paddy studied at Madarhalli, Mandya district during 2015 and 2016. Among the micronutrients, zinc in the form of zinc sulphate as zinc source and boron in the form of boric acid were applied as foliar spray at three different stages of plant growth i.e transplanting, tillering and grain formation. The experiment was laid out in randomized complete block design. The mixed foliar application treatment (Zn and B 0.05 % each) recorded the highest mean values of all yield characteristics compared to control. The combination of Zn and B as foliar spray influenced significantly increase in the plant height (68.67 cm), maximum number of tillers / m2 (28), chlorophyll content (15.50), seed germination (91.25 %), seedling vigour index II (580) and paddy seed yield (16.75 q ha-1) was obtained. In vivo assay revealed that the least PDI was observed in variety Jaya bioprimed with Bacillus amyloliquefaciens USABR9 (1.10 %) compared to control (4.95 %). In case of KRH-4 least PDI (0.55 %) was recorded seed bioprimed with Bacillus amyloliquefaciens USABR9 (1.0 %) compared to control (4.62 %). The storability of the hybrid rice KRH-4 seeds could be enhanced by treating the seeds with polycoates and storing them in super grain bag to maintain seed quality up to sixteen months.