Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
consecutive years of 2017-18,2018-19 and 2019-20 under command area. Rice crop was
sown immediately after receipt of monsoons at optimum soil moisture with pre-emergence
application of pendimethalin @ 2.5 lit /ha was taken up in all demonstrations. The results of
the demonstrations revealed that the mean grain yield of direct seeded rice was 7453 kg/ ha,
while transplanting method was 7125 kg/ha. Net returns with direct seeded rice was Rs
79154/ha compared to transplanting method of Rs 56700/ha. The increased net returns in
direct seeded rice due to less cost of cultivation.
Direct seeded rice has been believed to be an optimal option for rice production. This shift
would sustainably reduce crop water requirement and emission of green house gases. In
transplanted rice with Puddling and transplanting is one of the major sources of methane
emissions. More over, direct seeded rice uses 15-20 per cent less water than transplanted
flooded rice and reduces methane emission by 18% percent. The reduced emission of these
gases helps in climate change adaptation and mitigation, organic matter turnovers, Carbon
sequestration and also provides opportunity for crop intensification.
T4a-17P-1467
Effect of Bio Regulators Along with Organics on Growth and Yield of
Gundumalli (Jasminum sambac Ait.)
V. Velmurugan, R. Sendhilnathan, M. Punithavathi, V. Sangeetha,
V.E. Nethaji Mariappan and P. Dominic Manoj
ICAR – Krishi Vigyan Kendra, Hans Roever Campus, Perambalur District, Tamil Nadu - 621115
Department of Horticulture, Annamalai University, Annamalainagar-608002. T.N. India
kvk.perambalur@icar.gov.in, kvkroever@gmail.com
Effect of bio regulators along with organics on growth and yield of Gundumalli
(Jasminumsambac Ait.) was taken up in a floriculture unit, Annamalai University at
Annamalainagar during 2011-2013.The experiment was conducted by using different organic
manures viz., FYM, vermicompost and whereas bioregulators like Naphthalene acidic acid,
Gibberllic acid and panchagavya was given as foliar application. The experiment was laid out
in Randomized Block Design with 10 treatment combinations in three replications. The
growth parameters viz., plant height, number of primary shoots, number of secondary shoots,
number of leaves per plant, leaf area, number of productive shoots and chlorophyll content
registered the highest when application of vermicompost @ 2.5 t ha -1 along with foliar spray
panchagavya 3 percent. The flowering and flower bud characters, viz., early commencement
of flowering, length of flower bud, flower bud diameter, corolla tube length, bud length
without corolla and flower yield characteristics viz., hundred bud weight, flower yield per
plant, flower yield per hectare and the quality character like shelf life also registered the
highest in the treatment combination of vermicompost @ 2.5 t ha -1 along with foliar spray
601 | Page Resource conservation and rainfed agriculture