Stručni rad

PRODUCTION AND STORAGE OF SEEDS OF TOBACCO

H. Stepić ; Hrvatski duhani d.d. Virovitica, Virovitica, Hrvatska
Ankica Budimir ; Hrvatski duhani d.d. Virovitica, Virovitica, Hrvatska
J. Zdeličan ; Hrvatski duhani d.d. Virovitica, Virovitica, Hrvatska
Z. Pleša ; Hrvatski duhani d.d. Virovitica, Virovitica, Hrvatska
Vinko Kozumplik ; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska

Sažetak

Today, burley tobacco (Nicotiana tabacum L.) is grown in Croatia on about 3600 ha. Tobacco is a self-pollinated species. Cross-pollination by insects, is seldom more than 2%. In commercial production pure line and CMS hybrid cultivars are grown. In this paper seed production of the above cultivar is presented. In the tobacco seed production the same growing practices as in leaf production, except flower topping, are used. Mintaining prebasic (breeder) and basic seed and pure line cutivar certified seed is by self-pollination. Production of hybrid seed is by hand pollinating the CMS female inbred with pollen of the fertile male inbred. Maintaining the sterile female inbred analog is by backcrossing it with its fertile analog. Maintaining the fertile inbred is by selfpollination. Naturally self-pollinated tobacco plant yields about 25 grams of seed whereas in hybrid seed production usually about 10 to 15 grams of seed per plant are produced. One gram of raw seed contains 10000 to 12000 seeds. For commercial tobacco production row, pelleted or pregerminated pelleted seed can be used. Under the storage conditions of 9 to 10 ºC and 50% relative humidity the seed can maintain viability for 10 years.

Ključne riječi

tobacco; seed; cytoplasmic male- sterility

Hrčak ID:

161846

URI

https://hrcak.srce.hr/161846

Datum izdavanja:

5.7.2016.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.538 *