RISS 검색 - 국내학술지논문 상세보기

다국어 초록 (Multilingual Abstract)

An experiment was set to assess the effect of mixed plantings on initial growth and biomass yield of two common plantation tree species of Bangladesh namely Acacia auriculiformis (A) and Gmelina arborea (G). Study was carried out in the nursery bed of the Seed Research Laboratory and Nursery of Institute of Forestry and Environmental Sciences, Chittagong University (IFESCU), Bangladesh during February to November, 2015. The treatments consisted of two pure planting plots (100% A and 100% G) and five mixed planting plots (50%A: 50%G, 35%A: 65%G, 25%A: 75%G, 65%A: 35%G and 75%A: 25%G) of these two species. In nursery, seedlings were raised in a randomized blocks with four replicates of seven treatment plots. Periodic increments on height (cm), collar diameter (cm) and leaf/phyllode number of the seedlings was taken in every month and continued up to 10 months. The growth and biomass yield of seedlings were measured 10 months after the first seed was emerged. The effects of mixed plantation on growth and biomass were compared to that of seedlings grown in pure plantation. At the age of 10 months it was found that G. arborea seedlings were significantly tallest (240.13 cm) when planted with A. auriculiformis in a proportion of 25%A: 75%G, whereas A. auriculiformis were tallest in the pure 100% A plot, with an average mean height of 135.36 cm. Maximum collar diameter (1.38 cm) was recorded for G. arborea in the mixed plots 75%A: 25%G. Fresh and dry weight of shoots and roots of the seedlings were found significantly (p＜0.05) highest in 50%A: 50%G plot for G. arborea. G. arborea also showed highest quality index when mixed with A. auriculiformis in a proportion of 50:50, with an average value of 8.96. The results revealed a positive correlation between seedling growth and various planting patterns.

목차 (Table of Contents)

Abstract
Introduction
Materials and Methods
Experiment site
Preparation of the nursery bed

Abstract
Introduction
Materials and Methods
Experiment site
Preparation of the nursery bed
Experimental plot design
Care and maintenance
Measurement of Growth Parameters in the Nursery
Measurement of height, collar diameter, leaf/phyllodenumber and branch number
Growth data collection in the nursery
Measurement of relative yield of A. auriculformis and G. arborea seedlings
Determination of efficiency of intercropping system/mixed plantation
Measurement of Quality Index (QI) of A. auriculformisand G. arborea seedlings
Statistical analysis
Results
Initial growth performance of A. auriculiformis and G. arborea at the nursery
Relative Yield (RY)
Quality Index (QI)
Discussion
Conclusion
References

참고문헌 (Reference)

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