STANDARDIZATION OF NURSERY PRODUCTION TECHNOLOGY IN ONION UNDER NATURAL FARMING SYSTEM
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Date
2023-10-21
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UHF,NAUNI
Abstract
ABSTRACT
The present investigation entitled, “Standardization of nursery production technology in onion
under natural farming system” was carried out at the Department of Seed Science and Technology, Dr
YS Parmar University of Horticulture and Forestry, Nauni, Solan HP during 2022-2023. Total two
experiments were conducted. The first experiment was conducted under in vitro conditions using a
Completely Randomized Design with three replications to study the effect of 21 seed treatments
comprising of beejamrit, jeevamrit, formulations of plant extracts and cow urine, alongside a control
on seed quality parameters in onion. Out of these, seed treatment with Drek + Cow urine @ 20% for
30 min resulted highest germination (86.74%), speed of germination (13.51), seedling length (16.10
cm), seedling dry weight (2.88 mg), seedling vigour index-I (1396.52) and seedling vigour index-II
(249.81). The second experiment was laid out under nursery conditions in Randomized Block Design
with three replications to study the effect of seed treatments, soil application of jeevamrit @ 10% at
15 days interval and foliar application of saunthastra and buttermilk @ 3% alternatively at weekly
interval on seedling quality and health parameters in onion. Two best treatment combinations were
chosen from each category of plant extract and cow urine formulations, and one treatment each from
beejamrit and jeevamrit on the basis of results obtained from Experiment I alongside control. Out of
11 treatments, seed treatment with Drek + Cow urine @ 20% for 30 min resulted maximum
emergence (82.70%), speed of germination (11.49), seedling vigour index-I (1871.90), seedling
vigour index-II (3647.73) and minimum pre-emergence damping off (17.30%) and post emergence
damping off (0.66%). Seed treatment with Aloevera + Cow urine @ 10% for 30 min resulted
maximum seedling shoot length (17.26 cm) and seedling root length (6.30 cm). Maximum seedling
dry weight (45.83 mg) was recorded in the seeds treated with Aloevera + Cow urine @ 20% for 30
min. It can be concluded from the study that seed treatment with Drek + Cow urine @ 20% for 30 min
and soil application of jeevamrit @ 10% at 15 days interval and foliar spray of saunthastra and
buttermilk @ 3% alternatively at weekly interval significantly improved emergence, growth
parameters, vigour of seedlings and reduced pre and post emergence damping off in onion cv. Palam
Lohit