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Farklı Azot Miktarlarının Melez Mısır Genotiplerinin Kök ve Köküstü Büyümesine Etkisi

Year 1996, Volume: 9 Issue: 1, 94 - 100, 01.12.1996

Abstract

Farklı nitrat konsantrasyonların (0, 0.05, 0.50, 0.75 ve 1 mol m-3 NO-3) 5 hibrid mısır genotipi üzerine etkisi araştırılmıştır. Kök ve köküstü büyümesi genotiplere ve besi solüsyonundaki NO-3 konsantrasyonuna bağlı olmuştur. Besi ortamındaki NO-3 artması ortalama kök uzunluğunu 24.34 cm.'ye düşürmüş, buna karşılık ağırlık aynı oranda artmamıştır. En yüksek kök ağırlığı 0.05 NO-3 konsantrasyonunda elde edilmiştir. Genotipler kök ve köküstü ağırlıkları bakımından aynı, uzunlukları bakımından ise solüsyondaki NO-3 konsantrasyonun artmasına karşı farklı tepki göstermiştir. Genotiplerin kök ve köküstü uzunluk ve ağırlıkları bakımından oranlan ise azot konsantrasyonlarından bağımsız olmuştur. Konsantrasyonun artması ile köklerdeki hilcre uzunluğu 90 dan 38.5 μ ve eni 15 den 8.12 μ 'a düşmüştür. Bu çalışma, azotun etkili kullanımı bakımından hibrid genotiplerinin seçilmesinde yardımcı olabilir.

References

  • 1. Clarkson , D. T. and Hanson J. B. The mineral nutrition of higher plants. Annu. Rev. Plant Phsiol. 31:239-298. 1980.
  • 2. Torrey, J. G. Root hormones and plant growth. Annu. Rev. Plant Phsiol. 27:435-459. 1975.
  • 3. Thiraporn R, G. Geisler , and P. Effects of nitrogen fertilization on yield and yield components of tropical maize cultivate, Z, Acker-Pflanzenbau. 159:9-14, 1987.
  • 4. Miazlisch, N. A., D.D. Fritton, and W. A. Kendall. Root morphology and eariy development of maize at varying levels of nitrogen. Agron. J. 72:25-31. 1980.

The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes

Year 1996, Volume: 9 Issue: 1, 94 - 100, 01.12.1996

Abstract

The effects of different nitrate concentrations (0, 0.05, 0.50, 0.75 and 1 mol m-3 NO-3) on five maize hybrid genotypes were studied. The root and shoot growth depended on the genotype and concentration of NO-3 in the nutrient solution. Increase of NO-3 concentrations in the nutrient solution significantly reduced the root length to 24.34 cm whereas, weight did not increased accordingly. Highest root weight was obtained at 0.05 NO-3 level. The genotypes reacted differently to the increase of NO-3 concentration in the nutrient solution in shoot and root length but not with the weight. Root and shoot length and weight ratio as well as root/shoot ratios were independent from nitrogen concentration for the hybrid genotypes. With increasing nitrogen levels, cells in roots were also changed from 90 to 38, 5 μ in length and 15 to 8.12 μ in vvidtb. This study could be useful for screening hybrid genotypes for the efficient use of nitrogen.

References

  • 1. Clarkson , D. T. and Hanson J. B. The mineral nutrition of higher plants. Annu. Rev. Plant Phsiol. 31:239-298. 1980.
  • 2. Torrey, J. G. Root hormones and plant growth. Annu. Rev. Plant Phsiol. 27:435-459. 1975.
  • 3. Thiraporn R, G. Geisler , and P. Effects of nitrogen fertilization on yield and yield components of tropical maize cultivate, Z, Acker-Pflanzenbau. 159:9-14, 1987.
  • 4. Miazlisch, N. A., D.D. Fritton, and W. A. Kendall. Root morphology and eariy development of maize at varying levels of nitrogen. Agron. J. 72:25-31. 1980.
There are 4 citations in total.

Details

Primary Language English
Subjects Agricultural Engineering
Journal Section Articles
Authors

Bülent Samancı This is me

Publication Date December 1, 1996
Published in Issue Year 1996 Volume: 9 Issue: 1

Cite

APA Samancı, B. (1996). The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes. Akdeniz University Journal of the Faculty of Agriculture, 9(1), 94-100.
AMA Samancı B. The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes. Akdeniz University Journal of the Faculty of Agriculture. December 1996;9(1):94-100.
Chicago Samancı, Bülent. “The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes”. Akdeniz University Journal of the Faculty of Agriculture 9, no. 1 (December 1996): 94-100.
EndNote Samancı B (December 1, 1996) The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes. Akdeniz University Journal of the Faculty of Agriculture 9 1 94–100.
IEEE B. Samancı, “The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes”, Akdeniz University Journal of the Faculty of Agriculture, vol. 9, no. 1, pp. 94–100, 1996.
ISNAD Samancı, Bülent. “The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes”. Akdeniz University Journal of the Faculty of Agriculture 9/1 (December 1996), 94-100.
JAMA Samancı B. The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes. Akdeniz University Journal of the Faculty of Agriculture. 1996;9:94–100.
MLA Samancı, Bülent. “The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes”. Akdeniz University Journal of the Faculty of Agriculture, vol. 9, no. 1, 1996, pp. 94-100.
Vancouver Samancı B. The Effects of Different Nitrogen Levels on Shoot and Root Growth of Hybrid Maize Genotypes. Akdeniz University Journal of the Faculty of Agriculture. 1996;9(1):94-100.