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Effect of Foliar of Organic Formulations on Mulberry and Its Influence on Silkworm, Bombyx more L.

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Title Effect of Foliar of Organic Formulations on Mulberry and Its Influence on Silkworm, Bombyx more L.
 
Creator Vivek Uppar
 
Contributor S.G. Rayar
 
Subject Agricultural Entomology
 
Description A study was carried out to know the effect of foliar spray of organic
formulations on mulberry and its influence on cocoon production. The organic foliar
spray formulations viz., Panchgavya, Biodigester and Vermiwash were sprayed on M-
5 mulberry on 15th and 30th day of pruning at 1,3 and 5 percent and compared with
Vipul spray (250 ml/ha). Results revealed that foliar spray of Vermiwash 5% has
significantly increased the plant height (87.42 cm and 129.16 cm), Shoot length
(86.14 cm and 127.15 cm), Number of leaves per shoot (16.40 and 22.19), Leaf area
(138.59 dm2 and 522.98 dm2), on 45th and 60th day of pruning. Vermiwash 3 per cent
and Vipul spray were on par with Vermiwash 5 per cent for most of the growth traits.
Highest leaf yield of 566.00 g/plant was recorded in Vermiwash 5 per cent spray.
Vermiwash 3 per cent (553.00 g), Vipul spray (533.00 g). Boidigester 1 per cent
(532.00 g), Vermiwash 1 per cent (530.00g), Biodigester 5 per cent (513.00g),
Panchgavya 3 per cent (482.00g) and water spray (480.00g) were at par with
Vermiwash 5 per cent. Vermiwash 5 per cent foliar spray recorded significantly high
amount of chlorophyll ?a? (2.17 and 1.37 mg/g), ?b? (1.02 and 0.89 mg/g) and total
chlorophyll (3.13 and 2.16 mg/g) on 45th and 60th day of pruning. Foliar spray of
Vipul (1.98 mg/g) and Vermiwash 3 per cent (1.33 mg/g) were on par with
Vermiwash 5 per cent at 45th and 60th day of pruning, respectively in chlorophyll ?a?
content. Vermiwash 5 per cent (1.02 and 0.89 mg/g), 3 per cent (0.94 and 0.83 mg/g)
and Vipul (0.94 and 0.84 mg/g) recorded significantly high chlorophyll ?b? content on
45 and 60th day of pruning and were at par. On 45th (3.13 mg/g) and 60th (2.16 mg/g)
day of pruning, Vermiwash 5 per cent recorded high total chlorophyll followed by
Vipul (2.88 mg/g) on 45th day and Vermiwash 3 per cent (2.06 mg/g) and Vipul (1.97
mg/g) on 60th day and were all on par with each other. High total sugar of 15.59 and
18.81 per cent was recorded in Vermiwash 5 per cent on 45th and 60th day of pruning,
respectively, followed by Vipul (7.10%) and Vermiwash 3 per cent (7.05%) on 45th
day and Vermiwash 3 per cent (10.29%) and Vipul (10.01%) on 60th day and over all
on par. Vermiwash 5 per cent spray enhanced the crude protein content on 45th
(30.70%) and 60th (31.30%) of pruning followed by Vipul (25.26 and 26.25%) and
were on par with each other.
The larval duration did not vary statistically due to foliar spray of organic
formulations and Vipul. While, the silkworm growth traits viz., chawki (3.12g) and
mature larval weight (41.79g), silk productivity (5.78 cg/day), effective rate of rearing
(99.43%) and pupal weight (17.03g/10cocoons) were significantly more in
Vermiwash 5 per cent. Vermiwash 5 percent and 3 per cent spray significantly
increased the cocoon weight (21.10 and 20.71g/10cocoons) and shell weight (4.06 and
4.02g/10shells). Vipul spray was on par with Vermiwash 5 per cent in chawki larval
weight (2.95 g/10 larvae), effective rate of rearing (98.77%) and pupal weight (15.85
g/10 pupae). While, Vermiwash 3 per cent was on par with Vermiwash 5 per cent in
chawki larval weight (3.08 g), effective rate of rearing (99.38%), silk productivity
(5.71 g/day) and pupal weight (16.54 g)
Higher cocoon yield of 820g/dfl was obtained due to Vermiwash 5 per cent
spray. Significantly longer silk filament length of 926.54 and 880.46 m was observed
in Vermiwash 5 and 3 per cent as compared to Vipul (819.84 m) and untreated control
(688.26 m). The fibroin content significantly increased due to foliar spray of
Vermiwash 3 per cent (81.50%),Vermiwash 5 per cent (81.25%) and Vipul (80.37%)
and were at par as compared to untreated control (70.48%). The B:C ratio of 3.29 was
observed in vermiwash 5 per cent followed by Vermiwash 3 per cent (3.25) and Vipul
(2.98).
 
Date 2016-11-10T16:00:09Z
2016-11-10T16:00:09Z
2011
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/84941
 
Format application/pdf
 
Publisher UAS, Dharwad