STUDIES ON THE EFFECT OF MICRONUTRIENTS ON SEED YIELD, QUALITY AND NUTRIENT UPTAKE IN TURNIP
Loading...
Date
2023-01
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
UHF,NAUNI
Abstract
ABSTRACT
The present investigation titled, “Studies on the effect of micronutrients on seed yield, quality and nutrient uptake in turnip” was undertaken at Pandah Experimental Farm of the Department of Seed Science and Technology, Dr Y S Parmar University of Horticulture and Forestry Nauni, Solan HP during rabi season of 2021-2022 using turnip cv. Purple Top White Globe. There were eighteen treatment combinations which included three levels each of zinc (0, 300 and 400 ppm ZnSO4) and manganese (0, 100 and 200 ppm MnSO4) along with two stages of application (45 and 60 DAT) replicated thrice in RBD. Each plot of size 1.8 × 1.8 m accommodated twenty four plants at a spacing of 45 × 30 cm. The results revealed that out of 18 treatment combinations, ZnSO4 @ 400 ppm + MnSO4 @ 200 ppm at 45 DAT was best for growth parameters resulting in maximum plant height (155.65 cm) and plant spread (82.17 cm). On the other hand, treatment combination ZnSO4 @ 400 ppm + MnSO4 @ 200 ppm at 60 DAT outperformed rest of the interactions by registering maxima for number of siliquae plant-1 (1238.07), siliqua length (8.28 cm), number of seeds siliqua-1 (22.63), seed yield (21.19 g plant-1, 341.29 g plot-1 and 842.68 kg ha-1), plant biomass (45.87 q ha-1), 1000 seed weight (1.82 g), speed of germination (12.58), germination (94.86 %), seedling length (18.90 cm), seedling dry weight (11.57 mg), seed vigour index-I (1792.54), seed vigour index-II (1088.61) along with lowest figures for seed electrical conductivity (0.025 dS m-1) and days to seed maturity (120.46). This treatment combination also ensured highest B: C ratio (2.49: 1). Similarly, highest levels of both the micronutrients tested recorded significantly higher leaf and seed nutrient content (Zn and Mn); though there interaction could not influence these traits. Hence, foliar spray of ZnSO4 @ 400 ppm + MnSO4 @ 200 ppm at 60 DAT can be recommended for higher seed yield and quality of turnip under mid-hill situation of Himachal Pradesh after multi-location testing.