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Articles by A. W. Soomro
Total Records ( 10 ) for A. W. Soomro
  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. S. Chang , M. A. Chang , A. R. Lakho , A. W. Soomro and A. A. Memon
  Four newly developed strains; MPS-2, MPS-4, MPS-7, and MPS-11, were tested against two commercial, high yielding varieties CRIS-9 and NIAB-78, for two years (1996 and 1997) for seed cotton yield per hectare, ginning out turn percentage (Got), staple length and boll weight. The highest yield of 2209 kg /ha was obtained by MPS-2, followed by MPS-11 (2090 kg /ha). The increase of top yielding strain MPS-2 over commercial varieties CRIS-9 and NIAB-78 were 13.7 and 18.3%, respectively. The highest ginning out turn (38.3 %) was given by MPS-7 and highest staple length (27.0 mm) was measured in MPS-7.
  M.S. Memon , A. R. Soomro , A. W. Soomro and A. A. Memon
  A field experiment was conducted to assess the effect of four irrigation regimes (l1 =6, I2 =7, 13=8 and 14=9 including one irrigation as soaking dose) on a high yielding strain, CRIS-19 during 1997 and 1 998 crop seasons at CCRI, Sakrand Sindh. On an average, highest seedcotton yield of 1944 kg ha-1 was obtained when the crop received 8 irrigations followed by 9 and 6 irrigations where seedcotton yield of 1887 and 1808 kg ha-1 was obtained respectively. The lowest yield of 1763 kg ha-1 was produced when 6 irrigations were applied.
  A. W. Soomro , A. S. Arain , A. R, Soomro , G. H. Tunio , M. S. Chang , A. B. Leghari and M. R. Mags
  Two field experiments were laid out to assess the yield performance of cotton for four successive years i.e. 1997 to 2000 crop seasons by the application of NPK fertilizers each having three levels (50, 100 and 150). On an average, highest seedcotton yield of 2413 kg ha-1 was obtained when the crop was fertilized with 150, 50 and 50 kg ha-1f N, P and K respectively. The lowest yield of 1039 kg ha-1 was produced from the control plot where no chemical fertilization was applied. The seedcotton yield was further significantly increased with the application of boron and zinc when applied alone or in combination. The results revealed that balance use of macro as well as micro nutrient elements are essential for harvesting better yields.
  A. W. Soomro , A. R. Soomro and G. H. Mallah
  A glasshouse experiment was carried out to evaluate the effect of temporary water logging on the growth and development of cotton and the recovery of nitrogen applied as urea fertilizer, with 3 water treatments i.e. control (W1), moderate flooding (W2), and severe flooding (W3). The studies concluded that flooding greatly reduced the growth characteristics of the cotton plant such as height, number of leaves, fruiting points and plant dry matter. Recovery of nitrogen applied as urea was significantly decreased with the increase in severity of flooding. Nitrogen losses during temporary flooding appears mainly to higher loss of nitrogen by denitrification, although other mechanisms may be significant. The wider implications of the results in terms of field practice with irrigated cotton are discussed.
  A. R. Soomro , A. W. Soomro , A. H. Soomro and Kaneez Soomro A. M. Memon
  Twelve parents in fourteen cross combinations were studied for heterosis in F1 and inbreeding depression in F2 populations for seedcotton yield, number of bolls per plant, ginning out turn %, staple length and uniformity ratio. Seedcotton yield and number of bolls expressed fair amount of heterosis, however, hybrids showing higher magnitudes of heterosis were generally associated with higher amount of inbreeding depression suggesting dominant genes functioning for these traits. Small amount of heterosis, lower magnitude of inbreeding depression for lint percent, staple length and uniformity ratio indicated that additive genes were responsible for the expressions of these traits. Hybrid vigor recorded in F1 in respect of seedcotton yield per plant ranged from 4.5 to 159.0 percent, whereas in bolls per plant, ginning out turn, staple length and uniformity ratio the range was 0 to 150.0, -1.5 to 11.7, 0.7 to 13.0 and -2.0 to 11.1% respectively.
  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.
  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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