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Effect of seed priming on storability and field performance in okra (Abelmoschus esculentus (L.) Moench)

KrishiKosh

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Title Effect of seed priming on storability and field performance in okra (Abelmoschus esculentus (L.) Moench)
 
Creator B.T.Pushpalatha
 
Contributor T.A.Malabasari
 
Subject Seed Science And Technology
 
Description A laboratory experiment was conducted at Seed Unit (NSP), UAS, Dharwad Seeds
were soaked in water from two to 2 to 24 h and observations on seed quality were recorded at
two hours interval. Seeds soaked for 12 h recorded maximum germination (88.67%), seedling
dry weight (28.33 mg) and vigour index (2961) as compared to control and other durations of
seed soaking.
A field experiment was carried out during kharif 2007 at Main Agricultural Research
Station, Dharwad with two different quality seeds viz., high quality seeds with germination
above 85 per cent and low quality seeds with germination below 70 per cent as first factor
and six priming treatments viz., water, KH2PO4 (5000 ppm), GA3 (100 ppm), CaCl2 (1%),
KNO3 (2%) and control as second factor and laid out in randomized block design with
factorial concept.
High quality seeds recorded less days to 50 per cent emergence, higher field
emergence, plant height, less days to 50 per cent flowering and harvest maturity. Highest
yield and yield components as compared to low quality seeds. The seeds primed with GA3
(100 ppm) taken less days to attain 50 per cent emergence (8.00 days), higher total field
emergence (81.60%), plant height (22.79 cm),less days to 50 per cent flowering (41.28) along
with higher number of fruits/plant (12.87), number of seeds/fruit (51.60), seed yield/plant
(36.52 g) and per hectare (1292.90 kg) over unprimed seeds (10.83, 74.25%, 18.08 cm, 44.45,
9.07, 45.67, 27.58 g and 868 kg respectively).
The primed seeds were stored in polythene bag (700 gauge) for 8 months from August
2007 to April 2008. The results on seed quality during storage indicated that high quality
seeds recorded higher germination, seedling dry weight, vigour index and field emergence
besides recording lower electrical conductivity at the end of 8th month of storage. While, the
seeds primed with KNO3 (2%) maintained higher germination, seedling dry weight, vigour
index, field emergence with minimum electrical conductivity even at the end of 8 months of
storage.
 
Date 2016-10-27T19:00:37Z
2016-10-27T19:00:37Z
2008
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/82630
 
Format application/pdf
 
Publisher UAS, Dharwad