Vol. 5 (1) : January-February 2014 issue
Green Farming Vol. 5 (1) : 89-91 (January-February, 2014)
Effect of thiourea, KNO3 and growth regulators on growth and yield of rice during low temperature condition
DAYANAND1*, S.R. PATEL2, BALWAN3 and G . NAVIN CHANDER4
Main Paddy Research Centre (N.A.R.P.), Soil and Water Management Research Unit, Navsari Agricultural University, Navsari - 396450 (Gujarat)
Designation : 1P.G. Student *(ddnau746@gmail.com), 2Professor, 3,4Ph.D. Scholar
Subject : Water and Natural Resource Management, Water Conservation Engg., Water Harvesting, Farm Pond, Sewage Water, Irrigation
Paper No. : P-1141
Total Pages : 3
Received : 04 October 2013
Revised accepted : 30 November 2013
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Citation :
DAYANAND, S.R. PATEL, BALWAN and G. NAVIN CHANDER. 2014. Effect of thiourea, KNO3 and growth regulators on growth and yield of rice during low temperature condition. Green Farming Vol. 5 (1) : 89-91 (January-February, 2014)
ABSTRACT
A field experiment was conducted during rabi-summer season of 2010-11 at the Main Paddy Research Centre (N.A.R.P.) under Soil and Water Management Research Unit, Navsari Agricultural University, Navsari. The objectives were to mitigate the effect of low temperature in rice seedling grown in rabi season by seed treatment and seedling spray of growth substances like gibbrellic acid, thiourea, salicylic acid and KNO3. The results revealed that the combination of seed treatment and seedling spray with thiourea and salicylic acid significantly improved morpho-physiological parameters like germination percentage, number of leaves per seedling, root length, shoot length and seedling vighour index per plant compared to other treatments in nursery stage. The mean increase in grain yield over absolute control was 28.65 % in seed treatment and seedling spray with thiourea @ 1000 mg/l.
Key words :
Biological yield, Gibbrellic acid, Harvest index, KNO3, Thiourea, Salicylic acid, Seed vigour index.
