Ç.Ü. Kampüs alanı içerisinde doğal ekolojik şartlarda yetişen baklagil türleri bu türlerin nodülasyonu ve mikoriza infeksiyonu ile toprak özellikleri arasındaki ilişkileri
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- Tez No: 58109
- Danışmanlar: PROF. DR. M. RIFAT DERİCİ
- Tez Türü: Yüksek Lisans
- Konular: Ziraat, Agriculture
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 1996
- Dil: Türkçe
- Üniversite: Çukurova Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Toprak Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: 92
Özet
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Özet (Çeviri)
73 SUMMARY In the research, the wild legume species growing in the testing field chosen in the Çukurova- University Campus have been determined and soil and plant samples have been taken in March and April. The legume species such as Vicia sativa, Vicia hyrida, Astragalus hamosus, Lathyrus annum, Trifolium purpureum, Ononis reclinata, Trifolium luppaceum, Medicago scutellata, Trifolium cherleri, Trifolium angustifolium, Vicia lutea, Onobrichis crista-galli and Vicia narbonensis have been found in these soil samples. It has also been found that the soil in which these plants grow are neutre, unsalty, clay and clay loam textured, whit a low amount of organic matter. Despite this, the organic matter percentage has been found in average in the soil samples taken from Güneşevi and Güneşevi Road in Çukurova University Campus. In addition, it has been found that CO2 production and Dehidrogenaz activity, i.e. the microorganism activity in the soil, increases parallel to the increase in the organic matter in the soil samples. The nodulation number on the legume species described in the study has been found to low like a number between 5-48 and the nodulation ratio has been observed to increase in April. This situation can be linked to the fact that no inoculation is given to the legumes growing in natural conditions and therefore the Rhizobium bacteria causing N-fixation and infecting nodule are in low amounts. N-NH4, N-NO3 and total N ratios in the soil have been found to be very low due to the lack of microorganism activities and organic matter. The most remarkable legumes with regard to the number of nodules per plant are Vicia hybrida, Vicia sativa, Lathyrus annuus, Vicia lutea, Medicago rugosa, Trifolium angustifolium, Trifolium purpureum and Trifolium dibium.74 Thus it can be understood that the legume species which most infect nodules are Vicia sp., Trifolium sp., Lathyrus sp. When the mycorrhizal potential in the soil researched, it has been found that the soil samples very according to the places and time from which these samples are taken. In accordance with this, as the mycorrhizal infection percentage increases in the legumes, the number of mycorrhizal spores decreases. So there is a reverse ratio between mycorrhizal potential and mycorrhizal infection percentage. This may lead us to conclude that the mycorrhizal potential of different genera and species have different infection activity levels on various legume species. The researches that the mycorrhizal activity had already proved substantially in accordance with the legume varied and mycorrhiza species besides pedogenic and climatic factors. In the study conducted around 2. Konukevi and Gûneşevi in Çukurova University Campus, the infection ratios have been: found to be maximum compared to that at Nizamiye. The legumes with maximum infection ratios are Trifolium dibium, Trifolium purpureum, Ononis sp., Trigonella sp.,Lotus sp., Vicia lutea, Trifolium luppaceum and Medicago scutellata. The mycorrhizal infection ratio in all legume species studied has been found to be 75.72 % in average in April whereas the average has been found to be 67.84 % in March. This shows that during the period of inflorescence and following this period, the mycorrhizal infection ratios has increased in roots.
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