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Articles by A. M. Memon
Total Records ( 6 ) for A. M. Memon
  G. N. Panhwar , A. R. Soomro , Rehana Anjum , Saira Bano Babar , A. M. Memon and A. W. Soomro
  Two preliminary earliness indicators (days taken to open first flower and main stem node number of first sympodial branch) were evaluated in an experiment, to check their reliability and also to screen out most early varieties for further exploitation in breeding programs as well as at the farmers fields. The results demonstrated that DNH-49 significantly opened its first flower (44 DAP) earlier than other strains hence was observed as early maturing variety followed by CRIS-82 (45 DAP). CIM-482 opened its first flower after 48 days of planting and was observed as late, followed by FH-900 (47 DAP). As regards the second character (node number of first sympodial branch), the same trend of earliness was observed as in days taken to open first flower. Accordingly, DNH-49 produced significantly lowest main stem node number of first sympodial branch (7.1) and was recorded as early followed by CRIS-82 (7.2) and NIAB-999 (7.3). CIM-482 and FH-900 were observed as late strains in the test which produced significantly highest main stem node number of first sympodial branch (8.6) followed by BH-121 (8.5). The results demonstrated that the two indicators studied are reliable and efficient while predicting the earliness of any variety during the crop development stage.
  Saira Bano Babar , A. R. Soomro , Rehana Anjum , A. M. Memon and A. W. Soomro
  Two preliminary earliness indicators (main stem node number of first sympodial branch and days taken to open first flower) were evaluated. Seven advance strains and four commercial varieties to check their reliability and also to screen out most early varieties for further exploitation in breeding programs as well as at the farmers fields. CRIS-110 produced significantly lowest main stem node number of first sympodial branch (5.9) and was recorded as early variety followed by CRIS-85 and CRIS-107 (6.8) and CRIS-117 (7.1). CRIS-9 was observed as late variety in the test which produced significantly highest main stem node number of first sympodial branch (9.12). As regards the second parameter (days taken to open first flower, CRIS-79, CRIS-85, CIM-443 and CIM-448 opened their first flower (44- DAP) earlier than the other and were observed as early maturing varieties. CRIS-9 opened its first flower after 48 days of planting and was observed late with the similar trend shown while producing first sympodial node number. The two indicators studied are reliable and efficient while predicting the earliness of any variety.
  A. M. Memon , A. R. Soomro , A. W. Soomro and Rehana Anjumand Saira Bano Babar
  A field experiment was conducted to evaluate the different dates of initial irrigation and later irrigation frequencies on seedcotton yield of CRIS-134, an advance heat resistant variety. On an average, data revealed that CRIS-134 significantly responded to first irrigation at 45 days after planting (DAP) and yielded highest (2429 kg ha -1). As regards interval between subsequent irrigations, results revealed that averagely CRIS-134 produced significantly highest yield of 2230 kg ha -1 at every two weeks interval.
  A. D. Kalhoro , A. R. Soomro , Rehana Anjum , A. W. Soomro and A. M. Memon
  The object of this study was to screen out the best genotype under central Sindh conditions. Four promising advance strains viz., CRIS-2, CRIS-19, CRIS-52 and CRIS-79 were tested against two commercial checks NIAB-78 and CRIS-9. On an average of three years, CRIS-52 ranked first and produced 2671 kg ha -1 seedcotton yield very closely followed by CRIS-19 that yielded 2666 kg ha -1. The increase of top yielding strain CRIS-52 over commercial check NIAB-78 and CRIS-9 was 16.5 and 10.6 % respectively. The lowest yield of 2230 kg ha -1 was produced by NIAB-78. Highest ginning outturn of 34.8 % was given by CRIS-19 and longest staple of 26.4 mm was measured by CRIS-9.
  Rehana Anjum , A.R. Soomro , M.A. Chang and A. M. Memon
  Fruiting position effects on seedcotton yield were studied on four advance cotton strains and one commercial cultivar developed by CCRI Sakrand. The results demonstrated that the first three positions on sympodial branches were more important than the remaining fruiting positions. The first fruiting position contributed significantly highest percentage of the total seedcotton yield per plant in all the five cultivars ranging from 55.91 to 63.46 % . The second fruiting position ranked second in order and contributed 26.33 to 31.43 % of the total seedcotton yield per plant in all the cultivars. In case of CRIS-9 and CRIS-19, third, fourth and fifth position contributed 10.65 to 7.04%, 3.57 to 3.61 % and 1.38 to 2.05 % of the total seedcotton yield per plant. While in case of CRIS-52, CRIS-133 and CRIS-134, third and fourth fruiting position contributed 8.18 to 9.19 % and 0.93 to 4.64 % respectively of the total seedcotton yield per plant. Collectively the first three positions contributed about 95 to 97 % of the total seedcotton yield per plant in all the cultivars. Thus from the cotton management point of view the first three positions were most important.
  A.R. Soomro , A. W. Soomro , G. H. Mallah , A. M. Memon , A. H. Soomro and A. D. Kalhoro
  Studies were under taken to assess the yield, earliness and insect pest resistance of some newly developed okra leaf strains compared with normal leaf commercial varieties CRIS-9 and NIAB-78. Accordingly, almost all the okra leaf mutants yielded better than NIAB-78. Out of nine okra leaf strains, throb were better yields, two equally good and four gave low yield than CRIS-9 the second check variety. Highest yielding okra leaf strain produced 27 and 35 percent higher yield than CRIS-9 and NIAB-78 respectively. Okra leaf strains were documented as early maturing, whitefly tolerant and boll rot disease resistant. Realizing the better performance of okra leaf strains with reduced insecticide applications, the commercial utilization of these varieties in Sindh can not be ignored and may prove better replacement of current cultivars.
 
 
 
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