Determination of the Relationships between Crude Protein Content and Other Forage Quality Parameters in Grazed and Nongrazed Pastures by Correlation and Path Analysis

Yıl 2015, Cilt: 25 Sayı: 2, 207 - 213, 30.05.2015

Mevlüt Türk , Sebahattin Albayrak Yalçın Bozkurt

https://doi.org/10.29133/yyutbd.236392

Öz

This research was conducted to determine characters effecting crude protein content in different artificial pastures from the years 2010 to 2012 by using simple correlation coefficient and path analysis. Forage samples were collected from grazing and non-grazing areas once every 15 days during the grazing seasons. The crude protein (CP), acid detergent fibre (ADF), neutral detergent fibre (NDF) contents, in vitro dry matter digestibility (IVDMD), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and crude ash ratios were determined on the forage samples. The results showed that there were significant interrelationships between quality parameters and the crude protein content in grazing and non-grazing areas of pastures. Several traits affected the crude protein directly or indirectly. In nongrazed areas, P, K and Mg showed positive direct effect on crude protein whereas there were negative direct effects of NDF, ADF, IVDMD, Ca and ash on crude protein content. In grazed areas, ADF, IVDMD, P and K showed positive direct effect on crude protein whereas there were negative direct effects of NDF, Ca, Mg and ash on crude protein content.

Anahtar Kelimeler

ADF, Crude protein, Grazing, Correlation, Path analysis

Otlanan ve Korunan Meralarda Ham Protein İçeriği İle Diğer Kalite Faktörleri Arasındaki İlişkilerin Korelasyon ve Path Analizleri İle Belirlenmesi

Öz

Bu araştırma, korelasyon ve path analizleri kullanılarak, otlanan ve korunan meralarda ham protein içeriğini etkileyen karakterleri belirlemek amacıyla 2010-2012 yılları arasında yürütülmüştür. Otlatma sezonu boyunca otlanan ve korunan alanlardan her 15 günde bir bitki örnekleri toplanmıştır. Meradan alınan örneklerin ham protein, ADF, NDF, in vitro kuru madde sindirilebilirliği (IVDMD), fosfor, potasyum, kalsiyum, magnezyum ve ham kül içerikleri belirlenmiştir. Araştırma sonuçlarına göre, hem otlatılan hem de korunan alanlarda ham protein içeriği ile diğer kalite kriterleri arasında önemli ilişkiler tespit edilmiştir. Birçok özellik ham protein verimini doğrudan veya dolaylı olarak etkilemiştir. Korunan alanlarda P, K ve Mg ham protein oranı üzerine pozitif doğrudan ilişki gösterirken, NDF, ADF, IVDMD, Ca ve ham kül negatif doğrudan etki göstermiştir. Otlanan alanlarda ise, ADF, IVDMD, P ve K ham protein oranı üzerine pozitif doğrudan etki gösterirken, NDF, Ca, Mg ve kül negatif doğrudan etki göstermiştir.

Anahtar Kelimeler

ADF, Ham protein, Otlatma, Korelasyon, Path analizi

Kaynakça

• Araujo MRA, Coulman BE (2002) Genetic variation, heritability and progeny testing in meadow bromegrass. Plant Breeding, v.121 417-424.
• Araujo MRA, Coulman B (2004) Genetic variation and correlation of agronomic traits in meadow bromegrass (Bromus riparius Rehm) clones. Ciencia Rural, Santa Maria, 34 (2): 505-510.
• Arzani H, ZohdiM, Fish E, Zahedi Amiri GH, Nikkhah A, Wester D (2004) Phenological effects on forage quality of five grass species. J Range Manage 57:624 –629.
• Board, JE, Kang MS, Harville BG (1997) Path analyses identify indirect selection criteria for yield of late planted soybean. Crop Sci. 37 :879-884.
• Buxton RD, Mertens DR, Fisher DS (1996) Forage quality and ruminant utilization. In: Cool-Season Forage Grasses (Eds Moser, LE, Buxton DR, Casler MD), American Society of Agronomy, Crop Science Society of America & Soil Science Society of America, Madison, Wisconsin, USA, 229–267.
• Dofing SM, Knight CW (1992). Alternative model for path analysis of small-grain yield, Crop Sci., 32:487-489.
• Finne MA, Rognli OA, Schjelderup I (2000) Genetic variation in a Norwegian germplasm collection of white clover (Trifolium repens L.):3.Correlation and path coefficient analyses of agronomic characters. Euphytica 112: 57-68.
• Holechek JL, Preper RD, Herbel CH (2004). Range Management: Principles and Practices, 5th edn. Prentice Hall, New Jersey, 1–607.
• Kacar B, Inal A (2008) Bitki Analizleri. Nobel Akademik Yayıncılık, Ankara, 1–892.
• Kacar B, Kovancı I (1982) Evaluation of results and phosphorus analyses in plant, soil and fertilizer. Ankara University Agricultural Faculty Publications.354 p.
• Kang MS, Miller JD, Tai PY (1983) Genetic and phenotypic path analyses and heritability in sugarcane. Crop Sci., 23:643-647.
• Koc A, Gokkus A (1994) Determination of basal area, botanical composition and suitable stubble height of the rangelands of Guzelyurt district, Erzurum. Turk J Agric For 18: 495–500.
• Rama Rao M, Leniel HH, Smith EFS (1973) Seasonal changes in nutritive value of bluestem pastures. J Range Manage 26: 419–422.
• Rebole A, Alzueta C, Ortiz LT, Barro C, Rodriguez ML, Caballero R (2004) Yields and chemical composition of different parts of the common vetch at flowering and at two seed filling stages. Span J Agric Res 2: 550–557.
• Rodriguez D. Jasso de, Angulo-Sanchez JL, Rodriguez-Garcia R (2001) Correlation and path coefficient analyses of the agronomic trait of a native population of guayule plants. Industrial Crops and Products. 14:93-103.
• Rowell DL (1994) Soil Science: Methods and Applications. Longman Scientific and Technical, Harlow, UK, 1–350.
• Samonte SO, Wilson LT, McClung M (1998) Path analyses of yield and yield-related traits of fifteen diverse rice genotypes. Crop Sci. 38:1130-1136.
• SAS Institute (1998) INC SAS/STAT users’ guide release 7, Cary, NC, USA.
• Sinebo W. (2002) Yield relationships of barleys grown in a tropical highland environment. Crop Sci. 42: 428-437.
• Singh, K.B., Chaudhary B.D. (1977). Biometrical methods in quantitative genetic analysis. Kalyani publishers. New Delhi-India, 304p.
• Stubbendieck J., Foster M.A. (1978). Herbage yield and quality of threadleaf sedge. J Range Manage 31: 290–292.
• Stratton SD, Sleper DA, Matches AG (1979). Genetic variation and interrelationships of in vitro dry matter disappearance and fiber content in orchardgrass herbage. Crop Science, v.19, p.329-333.
• Tucak M, Popovic S, Cupic T, Spanic V, Meglic V. (2013) Variation in yield, forage quality and morphological traits of red clover (Trifolium pratense L.) breeding populations and cultivars. Zemdirbyste-Agriculture, vol. 100, No. 1 (2013), p. 63–70.
• Turk M, Çelik N, Bayram G, Budakli E (2008) Relationships Between Seed Yield and Yield Components in Narbon Bean (Vicia narbonensis L.) by Path Analysis. Bangladesh Journal of Botany, 37(1), 27-32.