Earticle

초록

영어

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

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

키워드

저자

• Shourav Dutta [ Institute of Forestry and Environmental Sciences, University of Chittagong, Chittagong-4331, Bangladesh ] Corresponding author
• Mohammed Kamal Hossain [ Institute of Forestry and Environmental Sciences, University of Chittagong, Chittagong-4331, Bangladesh ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Journal of Forest and Environmental Science [산림과학연구]

• 간기

  계간

• pISSN

  2288-9744

• eISSN

  2288-9752

• 수록기간

  1981~2025

• 등재여부

  KCI 등재

• 십진분류

  KDC 526 DDC 634