BG49517A1 - Silk silkworm hybrid <vratza- 35 x merefa- 2> and reverse crossbreeding - Google Patents

Silk silkworm hybrid <vratza- 35 x merefa- 2> and reverse crossbreeding

Info

Publication number
BG49517A1
BG49517A1 BG9040389A BG9040389A BG49517A1 BG 49517 A1 BG49517 A1 BG 49517A1 BG 9040389 A BG9040389 A BG 9040389A BG 9040389 A BG9040389 A BG 9040389A BG 49517 A1 BG49517 A1 BG 49517A1
Authority
BG
Bulgaria
Prior art keywords
hybrid
silk
cocoons
hatched
cocoon
Prior art date
Application number
BG9040389A
Inventor
Jonka S Nacheva
Naum I Petkov
Georgi Kh Mladenov
Ljudmila M Akimenko
Mark E Braslavski
Mikhail I Stotskij
Original Assignee
Tsentar Sortoizpitvane I Sorto
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tsentar Sortoizpitvane I Sorto filed Critical Tsentar Sortoizpitvane I Sorto
Priority to BG9040389A priority Critical patent/BG49517A1/en
Publication of BG49517A1 publication Critical patent/BG49517A1/en

Links

Abstract

The hybrid is designed for spring production of cocoons. The obtained raw silk has good technological qualities. The silkworm seed is grey in color, gluey, with white shells after the silkwork is hatched. The newly-hatched silkworms are dark brown, while the adult ones - white with a pattern. The cocoons are snowwhite with cylindrical form. Some 98.27% of the silkworm seed is hatched into the first hybrid and 99.54% hatches into the opposite cross-breed. The longevity of life is respectively, 93.35% and 96.39%. The average weight of the cocoon is 2.264 g and 2.449 g. The silk production of the raw cocoons is 23.72% and 24.93%, while the length of the cocoon thread is 1467 m and 1582 m. The yield from a cocoon per a box of silkworm seed is 38.81 kg and 43.50 kg. The yield of raw silk it 7.492 and 8.443 kg.
BG9040389A 1989-11-20 1989-11-20 Silk silkworm hybrid <vratza- 35 x merefa- 2> and reverse crossbreeding BG49517A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BG9040389A BG49517A1 (en) 1989-11-20 1989-11-20 Silk silkworm hybrid <vratza- 35 x merefa- 2> and reverse crossbreeding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG9040389A BG49517A1 (en) 1989-11-20 1989-11-20 Silk silkworm hybrid <vratza- 35 x merefa- 2> and reverse crossbreeding

Publications (1)

Publication Number Publication Date
BG49517A1 true BG49517A1 (en) 1991-12-16

Family

ID=3922486

Family Applications (1)

Application Number Title Priority Date Filing Date
BG9040389A BG49517A1 (en) 1989-11-20 1989-11-20 Silk silkworm hybrid <vratza- 35 x merefa- 2> and reverse crossbreeding

Country Status (1)

Country Link
BG (1) BG49517A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103070138A (en) * 2013-02-04 2013-05-01 江苏科技大学 Method for breeding hypersilk, bombyx mori densovirus-resistant and fluoride-resistant silkworm variety
CN104488832A (en) * 2014-11-30 2015-04-08 王旭 Silkworm breeding method
CN105850915A (en) * 2016-05-16 2016-08-17 王月兰 Mechanical device for rapid cocoon picking

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103070138A (en) * 2013-02-04 2013-05-01 江苏科技大学 Method for breeding hypersilk, bombyx mori densovirus-resistant and fluoride-resistant silkworm variety
CN104488832A (en) * 2014-11-30 2015-04-08 王旭 Silkworm breeding method
CN105850915A (en) * 2016-05-16 2016-08-17 王月兰 Mechanical device for rapid cocoon picking
CN105850915B (en) * 2016-05-16 2018-12-28 扬州市生态科技新城润业中小企业服务中心有限公司 It is a kind of for quickly plucking the mechanical device of cocoon

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