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Articles by K.M. Khalequzzaman
Total Records ( 6 ) for K.M. Khalequzzaman
  Md. Moynul Hoque , Md. Mosharraf Hossain , Md. Rezaul Hoque Khan , K.M. Khalequzzaman and S.M.R. Karim
  An experiment was conducted at the Agronomy Field Laboratory, BAU, Mymensingh during June to December 2000 to assess the effect of varieties of transplanted aman rice and weeding regimes on weed growth and yield of transplant aman rice. Five varieties and five weeding were used in the experiment. The results revealed that BRRI dhan 34 was the most competitive variety, which provided with the least accumulation of weed dry matter per unit area. The ranking was BRRI dhan 34 ≈ Binashail > Nizershail > BRRI dhan 39 ≈ BRRI dhan 33 The ranking of the varieties in respect of grain yield was BRRI dhan 39 ≈ BRRI dhan 33 > Binashail > BRRI dhan 34 > Nizershail. The effect of weeding regimes produced significant differences on the weed growth and grain yield of transplant aman rice. The reduction of weed dry matter was similar in both two weeding and three weeding regimes. The highest grain yield was noted under three weeding conditions (3.95 t ha-1) which was at par with weed free (4.01 t ha-1), but dissimilar to two weeding regimes (3.71 t ha-1).
  M.R. Alam , M.A.R. Sarkar , K.M. Khalequzzaman , Md. Nazrul Islam , M.K. Anam and Md. Abdur Rahim
  The experiment was conducted to find the effect of different cultivars and time of nitrogen application on the growth and yield of separated tillers of transplant aman rice. Tillers of three rice cultivars (BRRI Dhan 32, BR 23 and BR 22) and five timings of nitrogen application were used as treatments. The individual effect of var. BR 23 and the three equal splits of application of nitrogen as basal, at early tillering and at panicle initiation stages gave the best results on plant height, no. of tillers hill-1, no. of leaves hill-1, leaf area index, no. of grains panicle-1, weight of 1000 grains, grain yield, straw yield, biological yield and harvest index having 121.21 and 122.54 cm, 9.10 and 9.26, 36.72 and 39.91, 4.92 and 4.68, 118.60 and 118.50, 23.98 and 22.33 g, 4.55 and 4.79 t ha-1, 6.15 and 6.60 t ha-1, 10.70 and 11.40 t ha-1, 42.62 and 41.24 %, respectively. The interaction effect of var. BR 23 and T2 was the highest on these parameters. Rice var. BR 23 and three splits of nitrogen application may be used for increasing growth and yield of separated tillers of transplanted aman rice.
  M.A. Jinnah , K.M. Khalequzzaman , M.S. Islam , M.A.K.S. Siddique and M. Ashrafuzzaman
  The experiments were conducted to evaluate the efficacy of antagonistic P. fluorescens in controlling wilt of tomato caused by R. solanacearum in the field. The tomato variety Manik showed 42.59% and Pusa Rubi showed 46.29% bacterial wilt. The lowest bacterial wilt incidence (35.18%) was recorded in T2 (soil drenching of P. fluorescens) and highest incidence was in control plot. Plant height, number of branches/plant, number of fruits/plant, total fruit weight/plant and fruit yield (t ha–1) was significantly highest in T2 and lowest was in untreated control (T0). Soil drenching by using P. fluorescens suspension contained 109 cfu/ml (T2) may be used for controlling wilt and increasing yield of tomato.
  Md. Kalim Uddin , K.M. Khalequzzaman , M.A. Rahman , M.M. Begum and M. Zibon Nessa
  Seven different fertilizer combinations on cropping system basis were studied to develop a fertilizer package for mustard-boro rice-transplant aman rice cropping system. Significantly higher grain yield of mustard, boro rice and transplant aman rice were obtained when the recommended rate of fertilizer was applied. When P or K was not applied in boro rice after full NPKS application in the preceding mustard, gave similar yield to when received its recommended dose but when P or K was not applied for two consecutive boro (spring rice) and transplant aman rice (monsoon rice) it significantly reduced the transplant aman rice yield indicating that P or K had residual effect up to one succeeding crop. On the other hand, transplant aman need an extra application of both P and K fertilizer. Sulfur had a residual effect up to two succeeding crops if applied in full dose along with NPK in the preceding mustard. After application of full recommended dose of NPKS in the preceding mustard, a reduced (50%) dose of P + K along with a full N in the succeeding boro and transplant aman rice gave a similar yield to when recommended NPKS or NPK was used. To maintain soil fertility and to sustain crop yield this fertilizer practice may be considered as a good alternative compared to recommended fertilizer dose.
  K.M. Khalequzzaman , M.A. Jinnah , M.A.A.M. Rashid , M.N.A. Chowdhury and Md. Masud Alam
  Two variety of tomato viz. manik and pusha rubi were used to evaluate the efficacy of antagonistic P. fluorescens in controlling wilt of tomato caused by R. solanacearum and in increasing yield in green house condition. Four treatments i.e. R. solanacearum (106 c.f.u./ml) was used as control and P. fluorescens was used as 109, 108 and 107 c.f.u./ml suspension. Manik (V1) showed least bacterial wilt incidence and pusa rubi (V2) showed highest wilt incidence at 30, 45 and 60 DAI. T1 (P. fluorescens 109 c.f.u./ml) and combined effect of V1T1 decreased wilt of tomato at all stages and increased fruit yield. T0 (control-only R. solanacearum 106 c.f.u./ml) and V2T0 increased bacterial wilt at all stages and decreased fruit yield. So, T1 and V1T1 may be used for controlling bacterial wilt of tomato and increasing yield.
  K.M. Khalequzzaman
  The experiment was conducted both in the laboratory and glasshouse of the Department of Plant Pathology, BAU, Mymensingh during the period of March to July, 2001. Mixed inocula of Meloidogyne javanica and Sclerotium rolfsii in five different treatments including control were tested on the growth, yield, galling incidence and development of the nematode in soybean. Maximum length of shoot and root, fresh weight of shoot and root with nodules, number of pods, number of nodules and yield per plant were observed with the control treatment. Progressively higher galling incidence and higher number of adult females and juvenile populations of M. javanica correspondinfly with lower plant growth, nodulation and yield per plant were recorded from lower to higher levels of inocula ranging from 4-10 eggmasses of M. javanica with 0.025-0.1% w/w of S. rolfsii. Galling incidence was negatively correlated with plant growth, nodulated and yield of soybean.
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