Dormancy breaking and germination of prangos ferulaceae seeds

Prangos ferulaceae (Apiaceae)'da tohum dormansisi; islatma, yaralama, soguk-sicak derecelendirmesi, degisken sicakliklar ve GA3 uygulamalari ile çalisilmistir. Sonuçlarimiz tohum dormansisinin, sirasiyla %35 ve 40'a kadar çimlenmeye yol açan 5°C ve 12°C'de soguk derecelendirmesi yoluyla kirilabilecegini göstermistir. Degisken sicakliklar (15/6°C) sadece %15'e kadar çimlenmeye neden olmaktadir. Yaralama, islatma, sicak derecelendirmesi, ve GA3 uygulamalarinin tohum çimlenmesi üzerine herhangi önemli bir etkisi yoktur. Isigin çimlenmeyi inhibe ettigi ve tohumlarin negatif fotoblastisitesinin oldugu bulunmustur. Ayrica, dusuk sicaklilarin bitkide gelismemis embriyo büyümesini tesvik ettigi gösterilmistir. Tohumlarin 5°C'de 10 haftalik derecelendirilmesinden sonra embriyo uzunlugu %200 artmistir. Sonuç olarak, P. ferulaceae tohumlarinin morfofizyolojik dormansisinin oldugu açiktir.

Prangos ferulaceae tohumlarında dormansının kırılması ve çimlenme

The seed dormancy of Prangos ferulaceae (Apiaceae) has been studied with treatment the seeds by soaking, scarification, cold and warm stratification, alternating temperatures and GA3. Our results showed that the seeds dormancy can be broken by cold stratification at 5°C and 12°C which induced germination up to 35 and 40%, respectively. Alternating temperatures (15/6°C) promote germination only to 15%. Scarification, soaking, warm stratification and GA3 had no significant effects on seed germination. It has been found that light inhibits seed germination and the seeds have a negative photoblasticity. It has also been shown that cold temperatures promote the growth of the undeveloped embryo of the plant. After 10 weeks stratification of the seeds at 5°C, the embryo length increased 200%. In conclusion, it is obvious that, the seeds of P. ferulaceae have morphophysiologic dormancy.

Kaynakça

Baskin CC, Baskin J (2001) Seeds: Ecology, Biogeography and Evolution of Dormancy and Germination. Academic Press, San Diego.

Baskin CC, Chester EW, Baskin JM (1992) Deep complex morph physiological dormancy in seeds of Thaspium pinnatifidum (Apiaceae). International Journal of Plant Sciences 153, 565-571.

Finch-Savage WE, Leubne-Metzger (2006) Seed dormancy and the control of germination. New Phytologist 171, 501-523.

Modarres-Hashemi SM (1995) The elimination of physiological inhibition of Djashir (Prangos ferulaceae) seeds. Pajhohesh Va Sazandegi 29, 30-36.

Nadjafi F, Bannayan M, Tabrizi L, Rastgoo M (2006) Seed germination and dormancy breaking techniques for Ferula gummosa and Teuchrium polium. Journal of Arid Environments 64, 542-547.

Rechinger KH (1987) Flora Iranica, NO.162. Akademisehe Druck U., verlagsanstalt, Gratz.

Shikishima Y, Takaishi Y, Honda O, Ito M, Takeda Y, Kodzhimatov O, Ashurmatov O, Kuohsing L (2001) Chemical constituents of Prangos tschimganica. Chemical and Pharmaceutical Bulletin 49, 877-880.

Stokes P (1953) The stimulation of growth by low temperature in embryos of Heracleum sphondyllum. Journal of Experimental Botany 4, 222-234.

Tada Y, Shikishima Y, Takaishi Y, Shibata H (2002) Coumarins and Gamma pyrone derivatives from Prangos pabularia. Phytochemistry 59, 649-654.

Taiz L, Zeiger E (2002) Plant physiology. Sinauer Association, Sunderland. Walck JL, Hidayati SN (2004) Germination ecophysiology of the Western North American species Osmorhiza deuperata (Apiaceae): implications of preadaptatation and phylogenetic niche conservatism in seed dormancy evolution. Seed Sciences Reseaerch 14, 387-394.

Walck JL, Hidayati SN, Okagami N (2002) Seed germination ecophysiology of the Asian species Osmorhiza aristata (Apiaceae): composition with its North America congeners and implication for evolution of type of dormancy. American Journal of Botany 89, 829-835.

Kaynak Göster

  • ISSN: 1307-9867
  • Yayın Aralığı: Yılda 0 Sayı
  • Başlangıç: 2018

292 70

Sayıdaki Diğer Makaleler

Early embryonic and larval development of Indian catfish, Heteropneustes fossilis

Subramanian PUVANESWARI, Kasi MARIMUTHU, Ramasamy KARUPPASAMY, Mohammed Abdulkade HANIFFA

Dormancy breaking and germination of prangos ferulaceae seeds

Seyed Mehdi RAZAVI, Roghayeh HAJIBOLAND

The biochemical basis of shoot and fruit borer resistance in interspecific progenies of brinjal (Solanum melongena)

Muthusamy PRABHU, Sundaram NATARAJAN, Desikathathachary VAERARAGA, Lakshmanan PUGALENDHI

Antioxidant potential of Ocimum sanctum under growth regulator treatments

Vadakkemuriyil Divya NAIR, Abdul Jaleel CHERUTH, Ragupathi GOPI, Muthiah GOMATHINAYAGAM, Rajaram PANNEERSELVAM

Biochemical compositions and antibacterial activities of Lantana camara plants with yellow, lavender, red and white flowers

Deepak GANJEWALA, Silviya SAM, Kishwar Hayat KHAN

Phytochemistry and antimicrobial compounds of Hymenocrater calycinus

Ahmad Reza GOHARI, Soodabeh SAEIDNIA, Ahmad Reza SHAHVERDİ, Narguess YASSA, Maryam MALMIR, Kamyar MOLLAZADE, Ali Reza NEGHINEJAD

The effect of regular intake of Terminalia chebul on oxidative stress in mice originated from Salmonella typhimurium

Kishwar Hayat KHAN

The effect of sensitivity to abscisic acid on stomatal behaviour in Arabidopsis thaliana

Hao ZHANG, Mu-qing QIU, Gen-xuan WANG, Yi GAN, Ke-Feng ZHENG, Xu-Guo YAO

Growth and carbon partitioning of two genotypes of bean (Phaseolus vulgaris) grown with low phosphorus availability

Tahar BOUTRAA

Seed germination behaviour of Diplotaxis tenuifolia

Mehmet Serdal SAKCALI, Memduh SERİN