Some phenotypic selection criteria to improve seed yield and essential oil percentage of sweet fennel (Foeniculum vulgare Mill. var. dulce)

Bu araştırmada, tatlı rezenin (Foeniculum vulgare Mill. var dulce) tohum verim ve bazı verim öğeleri arasındaki ilişkileri belirlemek amaçlanmıştır. Yirmi adet rezene hattı materyal olarak kullanılmıştır. En yüksek pozitif ilişki (r=0.915) biyolojik verim ile tek bitki verimi arasında belirlenmiştir. Bitki boyu, dal sayısı, şemsiye sayısı ve şemsiyecik sayısının tek bitki verimi üzerine etkisi pozitif olmuştur. Bin tohum ağırlığı, uçucu yağ oranı ile negatif yönde ilişkili bulunmuştur. Tohum verimine maksimum - negatif etkiyi biyolojik verim yaparken, en yüksek pozitif ve direk etkiyi şemsiyecik sayısı göstermiştir. Ayrıca, tek bitki verimi, bitki boyu ve bin tohum ağırlığı tohum verimini olumlu şekilde etkilemiştir. Uçucu yağ oranı üzerine tek bitki veriminin direk etkisi (%32.95) en yüksek olmuş, bunu bitki boyu (%24.60) ve dal sayısı (%15.11) takip etmiştir. Sonuç olarak, tek bitki verimi, şemsiyecik sayısı ve bitki boyu tatlı rezenenin uçucu yağ oranı ve tohum veriminin iyileştirmesine yönelik fenotipik seleksiyon kriterleri olarak önerilebilir.

Tatlı rezenenin (Foeniculum vulgare Mill. var. dulce) uçucu yağ oranı ve tohum veriminin geliştirilmesine yönelik bazı fenotipik seleksiyon kriterleri

The research was aimed to determine relationships between seed yield and some yield components of 20 sweet fennel (Foeniculum vulgare Mill. var dulce) lines. The highest positive correlation (r=0.915) was recorded between biological yield and single plant yield. Plant height, number of branches, number of umbels and umbellets had a positive effect on single plant yield. One thousand seed weight was negatively correlated with essential oil percentage. The highest positive and direct effect on seed yield was shown by number of umbellets, while maximum negative and direct contribution to it was made by biological yield. In addition, single plant yield, plant height and one thousand seed weight affected seed yield positively. Single plant yield had maximum direct effect (32.95%) on essential oil percentage followed by plant height (24.60%) and number of branches (15.11%). In conclusion, it could be suggested that single plant yield, number of umbellets and plant height are good phenotypic selection criteria to improve seed yield and essential oil percentage of sweet fennel.

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Açıkgöz, N., E. İlker and A. Gökçöl. 2004. Evaluation of Biological Researches by Computer. p.149-192. Publication of Agricultural Faculty, No: 2, İzmir,
Albert-Puleo, M. 1980. Fennel and anise as estrogenic agents. J. Ethnopharmacol 2: 337-344.
Ali, N., F.Javidfar, J.Y. Elmira and M.Y. Mirza. 2003. Relationship among yield components and selection criteria for yield improvement in winter rapeseed (Brassica napus L.). Pak.J. Bot. 35:167-174.
Anonymous.http://www.abocausa.com./pdf/herbs/fennel.pdf (2003)
Bhandari, M. and A. Gupta. 1991. Variation and association analysis in coriander. Euphytica 58: 1-4.
Charles, D. J., M. R. Morales and J. E. Simon.1993. Essential Oil Content and Chemical Composition of Finocchio Fennel. In: Janick, J., Simon, J. E. (Eds.), New Crops. Wiley, New York, pp. 570-573.
Choudhry, A. R., A. H. Shah, L. Ali and M. Bashir. 1986. Path coefficient analysis of yield and yield components in wheat. Pakistan J. Agric. Res. 7: 71-75.
Dewey, D.R. and K.H. Lu. 1959. A correlation and path coefficient analysis of components of crested wheat grass seed production. Agronomy J. 51: 515-518.
Gürbüz, B. 2001. Correlation and path analysis among yield components in winter resistant coriander (Coriandrum sativum) lines. Indian J. of Agric. Sci. 71: 730-732.
Kandil, M. A. M., A. Salah, E. E. Omer, M. El-Gala, C. Satar and E. Schung. 2002. Fruit and essential oil yield of fennel (Foeniculum vulgare Mill.), grown with fertilizer sources for organic farming in Egypt. Landboutforschung Völkenrode 52: 135-139.
Orhan, H. and D. Kasıkcı. 2002. A study on comparison of the correlation, path, and partial regression coefficients. Hayvansal Üretim. 43:68-78.
Piccaglia, R. and M. Marotti. 2000. Characterization of some Italian types of wild fennel (Foeniculum vulgare Mill.). Via Filippo Res. 6:8.
Sade, B., F. Akınerdem, A. Tamkoç, A. Topal, R. Acar and S. Soylu. 1996. The correlation and path analysis of yield and yield components on fenugreek lines (Trigonella foenum graecum L.). Turkish J. of Agriculture and Forestry 20:153-156.
Sanker, K.B. and M.A. Khader. 1991. Correlation studies and path analysis of yield and yield components in coriander. South Indian Horticulture 39:384-386.
Singh, R.V., N. Tewari, C.V. Singh and Y.P. Singh. 1988. Path coefficient analysis of mineral in blood serum affecting first lactation milk yield in crossbred cows. Indian J. Anim. Sci. 58:994-996.
Singh, Y. and P. Mittal. 2003. Correlation and path-coefficient analysis in fennel (Foeniculum vulgare Mill.). Crop Res. 25: 111-115.
Steel, R.G.D. and J.H. Torrie. 1980. Principles and Procedures of Statistics. Second Edition, Mc. Graw-Hill Book Company Inc., New York.
Zeybek, N. 1985. Pharmaceutical Botanic. Publication of Agricultural Faculty, Bornova, İzmir.