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Articles by Md. Shahidul Haque
Total Records ( 6 ) for Md. Shahidul Haque
  Md. Shahidul Haque , Md. Rezaul Islam , M. Abdul Karim and M.A. Halim Khan
  A field experiment was conducted to study the effect of natural and synthetic mulches on biomass distribution in various parts and growth rates at different phenophases of local and exotic garlic (Allium sativum L.) cultivars. Significant variations exist among the different mulches in respect of dry matter partitioning and physiological characters of garlic. The results showed that Biomass production of leaf, root and pseudostem increased up to 105 days after planting (DAP) and thereafter decreased gradually at the approach of maturity. Total dry matter (TDM) also had a similar trend. Leaf area index (LAI) increased up to 90 DAP and then decreased gradually. CGR increased gradually with the advancement of crop growth. However, RGR from its highest value at early growth stage continued to decrease with crop age. The results indicated that among the natural mulches, water hyacinth mulch produced the plants with higher LAI, TDM and CGR but lower RGR. Transparent polyethylene mulch had a negative effect on growth of garlic. However, it had relatively higher RGR except 75 DAP and the non-irrigated control had the highest RGR. The exotic cultivar had higher biomass production, LAI, TDM and CGR but lower RGR in comparison to the local one.
  Md. Shahidul Haque , Md. Rezaul Islam , M. Abdul Karim and Md. Abdul Halim Khan
  The experiment was carried out to study the effect of natural and synthetic mulches on yield of local and exotic garlic cultivars during the period from November, 2000 to march, 2001. The results of the experiment revealed that significant variations exist among the different mulches in respect of morphological characters, yield contributing characters and yield of garlic. Water hyacinth mulch produced the tallest plant with higher number of leaves and roots per plant, higher fresh and dry weight of bulb, length of bulb and highest yield per hectare. Bulb diameter and number of cloves per bulb were higher in black polyethylene mulch. The exotic cultivar performed better than the local cultivar in respect of plant height, number of leaves and roots per plant, fresh and dry weight of bulb and yield per hectare.
  Md. Manzurul Hoque and Md. Shahidul Haque
  Two varieties of mungbean (Vigna radiata L.) were investigated for effects of seed treatment and foliar application of GA3 at 0, 50, 100 and 200 ppm on the growth, yield and yield contributing characters. Seed treatment with GA3 at 50 ppm increased plant height, number of leaves, fresh and dry weight of pod, number of seeds, 1000-seed weight, harvest index, while 200 ppm increased number of pods and 100 ppm increased pod length, seed weight per plant, seed yield (kg ha–1). Foliar application of GA3 at 200 ppm had higher plant height and number of leaf, while that at 100 ppm had greater number of pods, higher fresh and dry weight of pod, number of seeds, harvest index whereas 50 ppm of GA3 resulted higher pod length, 1000-seed weight, seed yield per plant, seed yield (kg ha–1). Between the mungbean varieties, V1 (BARI-4) performed better than the V2 (BARI-5) while the seeds were treated and an opposite result was found with foliar application of GA3. Significant varietal differences were observed in terms of morphological characters studied. The study indicates a high potentiality to increase yield of mungbean in Bangladesh by the application of GA3.
  Md. Shahidul Haque , Md. Abdus Sattar and M. Habibur Rahman Pramanik
  Study was conducted to determine the effects of various land configurations on dry matter production, distribution and growth of garlic. Ridge planting method significantly influenced total dry matter (TDM) production and its distribution into root, stem and leaf. It had higher total, stem, root and leaf dry matter, leaf area index (LAI) and crop growth rate (CGR) over furrow and flat methods of planting. Varietal difference in dry matter partitioning and growth of garlic was revealed in this study. The cv. Faridpur that had highest clove weight produced higher total, stem, root and leaf dry matter, LAI and CGR over the other two cultivars.
  Md. Shahidul Haque , Md. Abdus Sattar and M. Habibur Rahman Pramanik
  A field experiment was conducted to study the effects of ridge, furrow and flat planting methods on performance of three cultivars of garlic. Plant height was significantly affected and plants on ridges had the maximum height. Individual bulb weight, bulb diameter and 100 cloves weight were significantly higher in ridge method compared with other two methods. While, the number of cloves per bulb was higher in furrow method. The higher individual bulb weight, bulb diameter and 100 cloves weight of the plants grown in ridges gave a corresponding higher yield of garlic. Among the cultivars, cv. Faridpur had significantly higher individual bulb weight, bulb diameter, 100 cloves weight and a corresponding higher yield. However, it had few cloves per bulb compared with other two cultivars. Planting in ridges has potential application for the yield improvement of garlic.
  Md. Abdul Hye , Md. Shahidul Haque and M. Abdul Karim
  Application of gibberellic acid (GA3) and indoleacetic acid (IAA) increased the root number, root length and root weight, bulb diameter and bulb weight of onion. The highest bulb diameter and bulb weight was found at 200 ppm each of GA3 and IAA. Better increase in bulb diameter and bulb weight was achieved by the double dose than single dose. Application of GA3 and IAA increased the bulb yield. The highest bulb yield (15.57 t ha -1) was observed at 200 ppm GA3 followed by 200 ppm of IAA (15.53 t ha -1). In conclusion, the yield contributing characters and yield of onion could be manipulated by the application of GA3 and IAA.
 
 
 
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