Sains Malaysiana 42(10)(2013): 1473-1482

Germination Physiology and Autecology of Centaurea kilaeaBoiss. from Turkey

(Autekologi dan Fisiologi Percambahan Centaurea kilaeaBoiss. dari Turki)

B. Eskin¹*, I. I. Ozyigit¹, I. Dogan², V. Altay³, G. Demir⁴ & M. Serin¹

¹Marmara University, Faculty of Science & Arts, Biology Department, Goztepe, Istanbul, Turkey

²Dept. of Molecular Biology/ Genetics, Faculty of Science, Izmir Institute of Technology, Izmir,Turkey

³Biology Department, Faculty of Science & Arts, Mustafa Kemal University, Antakya, Hatay, Turkey

⁴Environm. Engineering Dept., Besiktas, Engineering Faculty, Bahcesehir University

Istanbul-Turkey

Diserahkan: 14 April 2013/Diterima: 12 Mei 2013

ABSTRACT

In this study germination requirements, plant-soil interactions and population biology of Centaurea kilaea was studied. The plant and soil samples were collected from Sofular Village (Şile District) and shore of Çatalca District (Istanbul) in Turkey by using standard methods. Methods like Scheibler, Wetdigestion, Kjeldahl and Olsen were employed for measurement of soil texture, structure and other physical and chemical characteristics (pH, total protein and electrical conductivity) using spectrophotometer, flame photometer, calcimeter and ICP. The results showed that ranges of different elements in the soil were 0.007-0.2% for N, 0.0007-0.001% for P, 0.001-0.01% for K, 0.0001-0.0002 % for Na. N, P, K and Na values in the plants were 2.17%, 0.005%, 0.1% and 0.006%, respectively. The data revealed that germination success of the seeds was influenced by the environmental factors such as pH, germination season and temperature.

Keywords: Centaurea kilaea; elements; plant; plant-soil interactions; soil

ABSTRAK

Dalam kajian ini keperluan percambahan, saling tindakan tumbuhan-tanih dan biologi populasiCentaurea kilaea telah dilakukan. Sampel tumbuh dan tanih telah dikumpulkan dari Kampung Sofular (Daerah Şile) dan pantai Daerah Çatalca (Istanbul) di Turki dengan menggunakan kaedah piawai. Kaedah seperti Scheibler, Wetdigestion, Kjeldahl dan Olsen telah digunakan bagi pengukuran tekstur tanih, struktur dan sifat fizikal dan kimia lain (pH, jumlah protein dan kekonduksian elektrik) menggunakan spektrofotometer, fotometer api, kalsimeter dan ICP. Hasil menunjukkan bahawa julat unsur berbeza dalam tanih ialah 0.007-0.2% bagi N, 0.0007-0.001% bagi P, 0.001-0.01% bagi K, 0.0001-0.0002% bagi Na. N, P, K dan nilai Na dalam tumbuhan ialah masing-masing 2.17, 0.005, 0.1 dan 0.006%. Data menunjukkan kejayaan percambahan bagi biji benih telah dipengaruhi faktor persekitaran seperti pH, musim percambahan dan suhu.

Kata kunci: Centaurea kilaea; saling tindakan tumbuhan-tanih; tanih; tumbuhan; unsur

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*Pengarang untuk surat-menyurat;  email: b_eskin@hotmail.com