EVALUATION OF SEED AND FORAGE YIELD AND YIELD COMPONENTS IN MOUNTAIN RYE (SECAL MANTANUM GUSS.) USING CORRELATION, REGRESSION AND PATH ANALYSIS

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RAHMANI E.; HEDAYATI P.

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Journal: Iranian Journal of Rangelands and Forests Plant Breeding and Genetic Research Year:2004 | Volume:12 | Issue:2 Page(s): 183-193

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Title

EVALUATION OF SEED AND FORAGE YIELD AND YIELD COMPONENTS IN MOUNTAIN RYE (SECAL MANTANUM GUSS.) USING CORRELATION, REGRESSION AND PATH ANALYSIS

Author(s)

RAHMANI E. | | HEDAYATI P. | Issue Writer Certificate

Keywords

SECALE MONTANUMQ4

MOUNTAIN RYEQ3

SEED YIELDQ3

FORAGE YIELDQ4

CORRELATIONQ4

REGRESSION AND PATH ANALYSISQ4

Abstract

Mountain Rye (Secal montanum) is one of the important perennial forage grasses that grows in Iranian pasture and rangelands. In order to evaluate relationships between SEED YIELD, forage dry matter yield and their components, 10 domestic ecotypes of this species were planted in Agriculture Research Station, Brojerd, Iran. These ecotypes were evaluated under optimum irrigation and dryland farming system using 2 separate complete blocks design with three replications in 2002. The data were collected and analyzed for flag leaf length, plant height, spike length, spike number per area, peduncle length, seed number per spike, thousand grain weight, SEED YIELD, dry matter yield and harvest index in 2003. The results showed significant relationships between SEED YIELD and spike length (r=0.78) and SEED YIELD with thousand grain weight (r=0.79). FORAGE YIELD had a positive and significant relationship with plant height, peduncle length, seed number per spike and thousand grain weight. Two separate stepwise regression analysis were used for SEED YIELD and FORAGE YIELD (as dependant variables). The results showed a significant effects of spike length, spike number and seed number per spike on SEED YIELD production (R2=0.92). For forage dry matter yield, the following traits; plant height, seed number per spike, flag leaf length, harvest index and spike length, were included in regression equation model. The results derived from path analysis indicated that, spike length and spike number per area had significant effects on SEED YIELD. For dry matter yield, plant height had the most direct and indirect effects through increasing spike length and harvest index on forage production.

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APA: Copy

RAHMANI, E., HEDAYATI, P.. (2004). EVALUATION OF SEED AND FORAGE YIELD AND YIELD COMPONENTS IN MOUNTAIN RYE (SECAL MANTANUM GUSS.) USING CORRELATION, REGRESSION AND PATH ANALYSIS. IRANIAN JOURNAL OF RANGELANDS AND FORESTS PLANT BREEDING AND GENETIC RESEARCH, 12(2), 183-193. SID. https://sid.ir/paper/104327/en

Vancouver: Copy

RAHMANI E., HEDAYATI P.. EVALUATION OF SEED AND FORAGE YIELD AND YIELD COMPONENTS IN MOUNTAIN RYE (SECAL MANTANUM GUSS.) USING CORRELATION, REGRESSION AND PATH ANALYSIS. IRANIAN JOURNAL OF RANGELANDS AND FORESTS PLANT BREEDING AND GENETIC RESEARCH[Internet]. 2004;12(2):183-193. Available from: https://sid.ir/paper/104327/en

IEEE: Copy

E. RAHMANI, P. HEDAYATI, “EVALUATION OF SEED AND FORAGE YIELD AND YIELD COMPONENTS IN MOUNTAIN RYE (SECAL MANTANUM GUSS.) USING CORRELATION, REGRESSION AND PATH ANALYSIS,” IRANIAN JOURNAL OF RANGELANDS AND FORESTS PLANT BREEDING AND GENETIC RESEARCH, vol. 12, no. 2, pp. 183–193, 2004, [Online]. Available: https://sid.ir/paper/104327/en

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