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Rajshahi). Effect of Intercropping of Mustard with control measure showed 43%, 33%, 52%, 41% and
Onion and Garlic on Aphid Population and Yield.
J. Bio-Sci., 2007, 15, 35-40.
Field experiments were conducted to study the
effect of intercropping of mustard (Brassica napus,
Var. Bari Sarisha-7) with onion (Allium cepa L.)
and garlic (Allium sativum L.) on aphid [Lipaphis
erysimi (Kaltenbach) population and yield.
Intercropped with these two medicinal as well as
spice crops reduced the aphid population
significantly (P<0.05). Mustard blocks
intercropped with garlic gave highest cost-benefit
ratios (1:2.07 and 1: 2.96) than onion intercropped
blocks. Sole mustard blocks produced lowest cost-
benefit ratios (1:1.65 and 1.2.06).
634 : AGRICULTURE : FORESTRY
433 AZAD, M.S.; ISLAM, M.W.; MATIN,
M.S. & BARI, M.A. (Forestry & Wood
Technology Discipline, Khulna University,
Khulna). Effect of Pre-Sowing Treatment on Seed
Germination of Albizia Lebbeck (L.) Benth. South
Asian J. Agric., 2006, 1(2), 32-34.
Albizia lebbeck (L.) Benth. known as kala koroi in
Bangladesh, occupies an important place in
plantation forestry for its faster growth and
multiple end products. Nitrogen fixing capacity of
the tree is considered as an additional benefit in
some land use systems such as, agroforestry and
tea garden. Morphological characteristics of seed
and seed germination of kala koroi (A. lebbeck)
after pre-sowing treatments were studied in the
nursery of Khulna University, Bangladesh. Seed
germination started within 4 days, 2 days, 2 days, 4
days and 12 days in scarification, H 2SO 4, hot
water, cold-water treatment and control conditions
respectively in poly bags. Seed treatment with
concentrated sulfuric acid (H 2SO 4), scarification
with sand paper, hot water (80°C), cold water and
139
21% germination respectively. The highest
germination success (52%) was observed under hot
water treatment which was followed by
concentrated H 2SO 4 treatment (43%), cold water
treatment (41%), scarification with sand paper
(33%) and control (21%).
434 BEGUM, S.; IBRAHIM, M.; SAMAD,
A.; KHAN, M.R.; KHALEDA, S.; ALAM,
A.K.M.S. & CHOWDHURY, A.N. (BCSIR
Laboratories, Rajshahi). Effect of Pre Harvest
Application of Some Growth Regulators on the
Yield and Quality Characteristics of Grape (Vitis
vinifera L.). Bang. J. Sci. Ind. Res., 2007, 42 (1),
59-66.
Present study was undertaken to investigate the
relative efficacy of four growth regulators, viz., α-
naphthalene acetic acid (NAA), indole-3-acetic
acid (IAA), gibberellic acid (GA) and 2,4-
Dichlorophenoxy acetic acid (2,4-D) at various
concentrations (ppm) on the yield and some other
quality characteristics of grape (Zakkao cultivar) at
the experimental grape research vine of BCSIR
Laboratories, Rajshahi during the period January,
2003 to July, 2004. Yield was found to be
increased (33.11 %) by spraying with 05 ppm of
2,4-D as compared to control and other growth
regulator treatments. Fruits of treated plants
showed increased total soluble solids (20.28 %)
and vitamin (23.18 %) than that of untreated one.
The titrable acidity (T. A) of fruits (33.01 %) of the
treated plants was reduced significantly as
compared to control.
435 HASAN, M.K.; AHMED, M.M.; HASAN,
M.K. (Bangladesh Agricultural Research Institute,
Joydebpur, Gazipur) & MIAH, M.G. (Dept. of
Agroforestry and Environment, Bangabandhu
Sheikh Mujibur Rahman Agricultural University,
Gazipur). Farmers' Attitude towards Agroforestry