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Articles by M.H. Siddiqui
Total Records ( 8 ) for M.H. Siddiqui
  F.C. Oad , M.H. Siddiqui and U.A. Buriro
  The field experiment was conducted at Students Farm, Sindh Agriculture University, Tandojam, Pakistan during 2004-05. Weed densities tested were: weedy check (control), wheat + Natural weeds (weedy for full season), wheat + mixed weeds (Chenopodium album, Melilotus alba, Avena fatua, Phalaris minor) (2:1), wheat + Chenopodium album (2:1), wheat + Melilotus alba (2:1), wheat + Avena fatua (2:1) and wheat + Phalaris minor (2:1). Among the tested weed densities, Chenopodium album, Avena fatua, Phalaris minor, and Melilotous alba were found common and serious weeds in wheat crop and reduced the tillers production, height of plants, seed index, wheat biomass and grain yield. The highest effect of Chenopodium album was recorded which reduced the grain yield by 39.95%, followed by Avena fatua (36.48%), Phalaris minor (35.33%), natural weeds for full season (34.96%), mixed weeds (32.14%) and Melilotous alba (24.01%). It was concluded that weeds exhibit the economic yield losses to the wheat crop, which may range from 24-39.95% and these must be controlled during the full growing season of the crop for achieving satisfactory crop yields.
  M.H. Siddiqui , F.C. Oad and U.A. Buriro
  A field experiment was conducted to examine the effect of different irrigation regimes on the growth and yield of various cotton cultivars at Students Farm, Sindh Agriculture University Tandojam, Pakistan. Three irrigation regimes viz. 3, 5 and 7 irrigations were examined against three cultivars i.e., TH-41/83, TH-224/87 and NIAB-78. The results revealed that most of the quantitative characters of cotton varieties viz. plant height, number of sympodial branches, number of bolls plant-1, seed cotton yield plant-1 and seed cotton yield ha-1 were affected significantly (p<0.01), while non-significant effects were recorded in case of monopodial branches, GOT % and staple length. In case of 7 irrigations, the average values were highest for plant height (105.56 cm), monopodial branches (1.67) plant-1, sympodial branches (21.22) plant-1, bolls (54.44) plant-1, staple length (28.21 mm), while in case of 5 irrigations highest values were recorded for GOT (35.07 %), seed cotton yield plant-1 (39.46 g) and seed cotton yield (3323.52 kg ha-1). In case of cotton cultivars, TH-41/83 and TH-224/87 produced plant height of 109.22 and 109.22 cm, monopodial branches 1.69 and 1.44 plant-1, sympodial branches 16.89 and 18.22 plant-1, number of bolls 43.00 and 46.78 plant-1, GOT 34.69 and 34.69 %, staple length 27.94 and 28.11 mm, seed cotton yield plant-1 35.89 and 37.00 g, seed cotton yield ha-1 of 2600.55 and 2597.37 kg, respectively. While comparing the growth and yield contributing characters of above two cultivars with commercial cultivar NIAB-78, it produced plant height of 71.28 cm, monopodial branches 1.67 plant-1, sympodial branches 16.78 plant-1, number of bolls 47.20 plant-1, GOT 35.64%, staple length 27.90 mm, seed cotton yield plant-1 39.60 g and seed cotton yield ha-1 of 2823.13 kg, respectively. It was observed that cotton crop irrigated five times produced significantly economical overall performance as compared to 7 irrigations or 3 irrigations and though NIAB-78 was relatively a dwarf cultivar but it yielded significantly better than TH-41/83 and TH-224/87.
  M.H. Siddiqui , F.C. Oad and U.A. Buriro
  The field experiment was conducted to assess the performance of cotton varieties (CRIS-9, Karishma and Niab-78) under different plant spacing (15, 25 and 35 cm) at Student’s Farm, Sindh Agriculture University, Tandojam. It was noted that plant height, branches, open bolls plant-1, un-open bolls plant-1, lint and seed cotton yield were significantly affected by plant spacing and varieties, while their interactions were non significant for all the crop parameters. Cotton with 35 or 25 cm plant spacing recorded satisfactory lint weight and seed cotton yield, this increment in yield was associated with the increase in all growth and yield attributes. It was concluded that among the tested varieties, Niab-78 displayed maximum seed cotton yield (1700 kg ha-1) with 35 cm plant spacing.
  F.C. Oad , M.H. Siddiqui , U.A. Buriro and G.S. Solangi
  The field trial was conducted to assess weed management practices in cotton at Students Farm, Sindh Agriculture University, Tandojam, Pakistan. The herbicides applied were: T1 = Dual Gold 960 EC @ 2.0 L ha-1 pre-emergence, T2 = Dual Gold 960 EC @ 2.5 L ha-1 pre-emergence, T3 = Stomp 330 EC @ 2.5. L ha-1 pre-emergence, T4 = Stomp 330 EC @ 3.75 L ha-1 pre-emergence, T4 = Hand weeding and T5 = Control. Weed flora after 71 days of sowing competing with experimental cotton were: Cyperus rotundus (40.03%), Portulaca oleraceae (17.77%), Cynodon dactylon (13.70%), Echinochlor columum (10.00%), Convolvulus arvensis (9.25%), Digeria arvensis (3.70%), Euphorbia hirta (1.85%), Cressia cretica (1.85%) and Chorchorus depressus (1.85%). Highest weed density (54.25 m2) and weed intensity (25.00 m2) were recorded in weedy (control) fields, while highest weed control percentage (74.07%) was observed in hand weeded plots. Among herbicide treatments, Dual Gold 960 EC @ 2.5 L ha-1 pre-emergence produced maximum weed control (56.66 %), followed by Dual Gold 960 EC @ 2.0 L ha-1 pre-emergence (36.66 %). Stomp 330 EC @ 3.75 L ha-1 pre-emergence resulted 33.33% weed control, while Stomp 330 EC @ 2.5 L ha-1 pre-emergence recorded 29.62% weed control. Mean cotton plant height (103.65 cm), monopodial branches (3.06) and sympodial branches (39.00) plant-1, productive bolls (32.3) plant-1 and seed cotton yield (3942.50 kg ha-1) were maximum in hand weeded plots. Among, herbicidal treatments, Dual Gold 960 EC @ 2.5 L ha-1 pre-emergence produced best results with 93.05 cm cotton plant height, 2.66 monopodial branches, 29.0 sympodial branches and 23.20 productive bolls plant-1 and seed cotton yield of 2992.50 kg ha-1. It was observed that weed control practices in cotton were more effective in controlling weeds and producing higher seed cotton yield, when integrated efforts which include manual weeding as well as use of herbicides are employed simultaneously. However, Dual Gold 960 EC @ 2.5 L ha-1 pre-emergence may be preferred for chemical control of weeds in cotton.
  M.H. Siddiqui , F.C. Oad and L. Kumar
  The field experiments were conducted in the farmer’s field at Dudu Chack, Shakar Garh, Narowal, Pakistan to assess the effect and relationship of varying seedling heights (2.5, 5.0, 7.5, 10.0 and 12.0 cm) on tobacco variety Tandojam-1 for growth and yield potentials. The plant height, leaf size, green and cured leaves yields, the nitrogen, nicotinic, chloride, potash and reducing sugars of the leaves were found maximum when seedling height increased linearly from 2.5 to 12.0 cm. The relationship of seedling height was significant and positive with all the growth and chemical parameters. It may be argued that better chemical composition and growth of the cured tobacco leaves may be obtained by transplanting the seedlings at the height of 10.0 to 12.0 cm.
  M.H. Siddiqui , A.A. Lakho and F.C. Oad
  The field study was conducted to assess the economic value of inoculated (Rhizobium japonicum) and un-inoculated soybean under different nitrogen levels (0, 50, 75 kg ha-1) at Rawalakot Experiment Farm, Azad Kashmir. The partial economic analysis showed the superiority of the field having inoculum + 50 kg N ha-1, where the physical productivity (1522.34 kg ha-1), revenue productivity (Rs. 13320.47 ha-1), net returns (Rs. 3220.47 ha-1) and cost-benefit ratio (1:1.31) were higher as compared to other treatments. Thus, it is recommended that bio fertilizer should be inoculated which fix atmospheric nitrogen in the root nodules with the in-organic nitrogen at the level of 50 kg ha-1 where maximum output could be achieved.
  M.H. Siddiqui , F.C. Oad and U.A. Buriro
  The field experiment was conducted at Agro climatic conditions of Rawalakot, Azad Kashmir for evaluation of various canola genotypes for seed and oil potentials. The ten canola entries: Canola-1, Canola-2, Shiralle, Oscar, Dunkled, Rainbow, PR-1002, PR-1005, PR-1003 and PR-1007 were sown in rain fed conditions. The result showed the superiority of Rainbow variety for recording the higher seed and oil yields and was recommended for achieving satisfactory yield.
  M.H. Siddiqui , F.C. Oad and A. Naqi Shah
  The field experiment was conducted to study the effect of sowing dates on total biomass content of cotton genotypes on clay soil under agro-climatic condition of Tandojam Pakistan during 2002. The treatments were three sowings (15th April, 15th May and 15th June) and three cotton genotypes (Qalandri, DS-67-3A and NIAB-78). The results revealed maximum biomass distribution at maturity in the leaves, stem and fruits of Qalandri and DS-67-3A, respectively whereas, the minimum biomass was noted in the NIAB cotton variety. Among the tested sowing dates, 15th May and 15th April planting exhibited significantly higher biomass accumulation as compared to late (15th June) sowings. Thus, it was recommended that cotton crop should be sown during 15th April to 15th May for obtaining satisfactory boll production in agro climatic conditions of Tandojam, Pakistan.
 
 
 
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