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Articles by Rehana Anjum
Total Records ( 8 ) for Rehana Anjum
  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.
  M. A. Chang , Rehana Anjum and A. R. Soomro
  An experiment was conducted to evaluate the earliness of four advance strains (CRIS-19, CRIS-52, CRIS-133 and CRIS-134) against one commercial variety CRIS-9 by using Bartlett`s Earliness Index. According to Bartlett "The higher the value of the index the earlier would be the variety". The results of this study demonstrated that CRIS-133 was recorded as earlier variety with 0.745 earliness index followed by CRIS-134 (0.719). CRIS-9 was observed as late variety with earliness index of 0.658 as compared to all other advance strains included in the test.
  Rehana Anjum , A.R. Soomro and M.A. Chang
  The study was conducted on four advance cotton strains and one commercial cultivar developed by CCRI Sakrand to establish the early maturing variety during 1997 cotton season. The results demonstrated that 58 days after planting (DAP) all the cultivars developed more than 8 NAWF with non-significant difference in their growth and development. However at 65 and 74 DAP significant difference was observed. Commercial cultivar CRIS-9 developed highest number (7.9) of NAWF at 65 DAP and (5.45) at 74 DAP, while CRIS-133 developed lowest number (6.5 and 4.15) of NAWF during the same period. Similarly CRIS-52, CRIS-133 and CRIS-134 developed less than 5-NAWF at 74 DAP suggesting that these cultivars ceased to grow further and moved towards maturity. CRIS-133 was observed as early where as CRIS-9 as late maturing variety in the test.
  Rehana Anjum , A.R. Soomro and M.A. Chang
  Earliness studies were carried out on four strains (CRIS-19, CRIS-52, CRIS-133, CRIS-134) and one commercial variety CRIS-9 developed by CCRI Sakrand, during 1997 cotton season by evaluating five characters viz., plant height, main stem node number bearing 1st sympodial branch, number of days to bloom first flower / boll and number of days to attain 5-NAWF (Nodes Above White Flower) stage for their effectiveness in measuring earliness. The results demonstrated that the advance strains tested were 2 to 3 days earlier than CRIS-9 in opening their first flower, 2 to 6 days in attaining the stage of 5 - NAWF stage and 7 to 10 days in opening their first boll. It was also found that the characters attaining date of 5-NAWF stage and date of opening first boll were more reliable indicators of earliness as compared to others.
  Saira Bano Babar , A. R. Soomro , Rehana Anjum and Muhammad Shahban Kalwar
  A four-parent di-allel cross including CRIS-5A, CRIS-9, CRIS-52 and CRIS-54, cultivars of Gossypium hirsutum was analyzed for heterosis, heterobeltiosis and economic heterosis. The traits studied were the number of sympodia, bolls per plant, boll weight and seedcotton yield. Results revealed that seedcotton yield was dependent on number of bolls per plant (whenever the heterosis for number of bolls per plant went high heterosis for seedcotton yield was also increased). Four hybrids CRIS-52 x CRIS-54, CRIS-5A x CRIS-52, CRIS-52 x CRIS-9 and CRIS-54 x CRIS-52, exhibiting more than 70% of all types of heterosis were singled out.
  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.
 
 
 
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