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ARTEMISIA NILAGIRICA and silk

Posted: 11 Nov 2014, 10:44
by Mark
ARTEMISIA NILAGIRICA

Subhas Chandra Datta, Ph.D.

OBJECTIVES:
Here, we show the effects of Potentized Artemisia nilagirica Extract (Cina) soaked
globules on root-knot disease caused by Meloidogyne incognita (Kofoid & White)
Chitwood of mulberry (Morus alba L. , Cv. ‘S1’) in the naturally infected field condition,
and also to examine the growth of healthy and infected plants treated with Cina, and
lastly examine the effects of leaves of Cina-treated healthy and infected-plants on the
leaf consumption and growth of silkworm larvae (Bombyx mori L.) and effective rate of
rearing (ERR%).

Design : In this field trial, sucrose globules, soaked with CinaMT, Cina 200C and
Cina 1000C respectively, were mixed with distilled water @ 7.2 mg/ml and applied by
foliar spray @ 10ml/plant on healthy and M. incognita infected mulberry plants once daily
for 15 days.

Results : All Potentized Artemisia nilagirica Extract (Cina) treated healthy and
infected plants showed improved growth in terms of number and surface area of leaves,
and protein content (%) of leaf and root. Healthy plants treated with Cina 200C shows
the greatest positive growth. All nematode infected plants treated with Cina had
significantly reduced root-knot disease in terms of root gall number and nematode
population in root and soil. No toxic residues in leaves were traced by Thin Layer
Chromatography (TLC) one day after the last treatment. Silkworm larvae feeding on the
leaves of Cina-treated plants showed improved growth, increased silk gland weight, shell
weight, shell ratio (SR%) and effective rate of rearing (ERR %), fewer feeding and
number of feeding days, shorter starting time of spinning day and span of spinning,
shortermoulting time to cocoon formation, and zero mortality rate.
Conclusion :In this field trial, silk worms reared commercially increased silk production
and effective rate of rearing (ERR%) by reducing root-knot disease of mulberry without
disturbing the biosphere.

Keywords : Potentized Artemisia nilagirica Extract (Cina); mulberry; root-knot;
Silk;Effective rate of rearing; field trial