The present study was carried out during the year 2013-14 on the screening of the selected linseed genotypes for yield performance in Sindh, Pakistan. The experiment was laid out at the experimental fields of Oilseeds...The present study was carried out during the year 2013-14 on the screening of the selected linseed genotypes for yield performance in Sindh, Pakistan. The experiment was laid out at the experimental fields of Oilseeds Section, Agriculture Research Institute, Tandojam in a three replicated randomized complete block design. Twelve linseed genotypes (L-53, C-W-2, Shikarpur 2, P<sup>-1</sup>6-4, L-8, 11<sup>-1</sup>06, Hala 3, L<sup>-1</sup>7, Santane, Summit, L<sup>-1</sup>0 and check llsi 90) were screened for their agronomic performance and correlations amongst yield and its contributing traits were calculated. The analysis of variance suggested significant (P < 0.05) variation among linseed genotypes for all the traits studied in this experiment. Most of the genotypes attained flowering and maturity earlier than the check variety;while P<sup>-1</sup>6-4 surpassed Ilsi-90 for primary branches;and most of the remaining genotypes were at par with the commercial check for primary branches. Genotype L<sup>-1</sup>0 surpassed the commercial check for capsules plant<sup>-1</sup> and L-8 was at par with the commercial check;while none of the genotypes could surpass commercial check variety for seed index, but 11<sup>-1</sup>06, Hala-3 and Summit also showed promising performance regarding the seed index. All the genotypes tested in this experiment such as L-53, C-W-2, Shikarpur 2, P<sup>-1</sup>6-4, L-8, 11<sup>-1</sup>06, Hala 3, L<sup>-1</sup>7, Santane, Summit, L<sup>-1</sup>0 surpassed the commercial check variety Ilsi-90 for seed yield plot<sup>-1</sup>. The correlation coefficient for yield and its contributing traits of linseed genotypes showed a positive and significant (P < 0.05) association for primary branches plant<sup>-1</sup> vs seed yield plant<sup>-1</sup> (r = 0.3334<sup>*</sup>), days to maturity vs spike length (r = 0.5384<sup>**</sup>), days to 75% flowering vs days to 90% maturity (r = 0.4073<sup>**</sup>), days to 75% flowering vs seed index (r = 0.4291<sup>**</sup>), days to 90% maturity vs seed in展开更多
An experiment was conducted to evaluate the productivity of wheat under different levels of phosphorus and method of application at Department of Agronomy, Sindh Agriculture University, Tandojam. Experiment was laid o...An experiment was conducted to evaluate the productivity of wheat under different levels of phosphorus and method of application at Department of Agronomy, Sindh Agriculture University, Tandojam. Experiment was laid out in a RCBD (factorial) with three replications. The treatments were four phosphorus levels (P<sub>1</sub> = 0 Kg?ha<sup>–1</sup> + Recommended Nitrogen, P<sub>2</sub> = 30 Kg?ha<sup>–1</sup> + Recommended Nitrogen, P<sub>3</sub> = 60 Kg?ha<sup>–1</sup> + Recommended Nitrogen and P<sub>4</sub> = 90 Kg?ha<sup>–1</sup> + Recommended Nitrogen) and two placement methods (A1 = Drilling method and A2 = Broadcast method). The statistical analysis of phosphorus levels and placement exhibited significant differences to the maturity days, plant height, tiller production, spike length, grains per spike, seed index, harvest index and grain yield ha<sup>–1</sup>. However, the interactions of P levels and placement in all crop characters were non-significant except the grain yield/ha<sup>–1</sup>. The results revealed that application of 90 kg P ha<sup>–1</sup> prolonged 143 days for maturity, taller plants (100.16 cm), more tiller plant<sup>–1</sup> (13.50), lengthy spikes (12.83 cm), more grains spike<sup>–1</sup> (51.33), heavier seed index (48.16 g), better harvest index (50.82%) and satisfactory grain yield (4240.50 Kg?ha<sup>–1</sup>). The unit increase in grain yield was positively correlated with the increased values of observed crop parameters by extending the values of maturity r = 0.85, plant height r = 0.94, tillers plant r = 0.96, spike length r = 0.95, grains spik<sup>–1</sup> r = 0.97, seed index r = 0.95 and harvest index r = 0.97. It was concluded that 90 kg P ha<sup>–1</sup> was superior level of phosphorus if, applied with seed drilling for obtaining satisfactory grain yield of wheat crop.展开更多
文摘The present study was carried out during the year 2013-14 on the screening of the selected linseed genotypes for yield performance in Sindh, Pakistan. The experiment was laid out at the experimental fields of Oilseeds Section, Agriculture Research Institute, Tandojam in a three replicated randomized complete block design. Twelve linseed genotypes (L-53, C-W-2, Shikarpur 2, P<sup>-1</sup>6-4, L-8, 11<sup>-1</sup>06, Hala 3, L<sup>-1</sup>7, Santane, Summit, L<sup>-1</sup>0 and check llsi 90) were screened for their agronomic performance and correlations amongst yield and its contributing traits were calculated. The analysis of variance suggested significant (P < 0.05) variation among linseed genotypes for all the traits studied in this experiment. Most of the genotypes attained flowering and maturity earlier than the check variety;while P<sup>-1</sup>6-4 surpassed Ilsi-90 for primary branches;and most of the remaining genotypes were at par with the commercial check for primary branches. Genotype L<sup>-1</sup>0 surpassed the commercial check for capsules plant<sup>-1</sup> and L-8 was at par with the commercial check;while none of the genotypes could surpass commercial check variety for seed index, but 11<sup>-1</sup>06, Hala-3 and Summit also showed promising performance regarding the seed index. All the genotypes tested in this experiment such as L-53, C-W-2, Shikarpur 2, P<sup>-1</sup>6-4, L-8, 11<sup>-1</sup>06, Hala 3, L<sup>-1</sup>7, Santane, Summit, L<sup>-1</sup>0 surpassed the commercial check variety Ilsi-90 for seed yield plot<sup>-1</sup>. The correlation coefficient for yield and its contributing traits of linseed genotypes showed a positive and significant (P < 0.05) association for primary branches plant<sup>-1</sup> vs seed yield plant<sup>-1</sup> (r = 0.3334<sup>*</sup>), days to maturity vs spike length (r = 0.5384<sup>**</sup>), days to 75% flowering vs days to 90% maturity (r = 0.4073<sup>**</sup>), days to 75% flowering vs seed index (r = 0.4291<sup>**</sup>), days to 90% maturity vs seed in
文摘An experiment was conducted to evaluate the productivity of wheat under different levels of phosphorus and method of application at Department of Agronomy, Sindh Agriculture University, Tandojam. Experiment was laid out in a RCBD (factorial) with three replications. The treatments were four phosphorus levels (P<sub>1</sub> = 0 Kg?ha<sup>–1</sup> + Recommended Nitrogen, P<sub>2</sub> = 30 Kg?ha<sup>–1</sup> + Recommended Nitrogen, P<sub>3</sub> = 60 Kg?ha<sup>–1</sup> + Recommended Nitrogen and P<sub>4</sub> = 90 Kg?ha<sup>–1</sup> + Recommended Nitrogen) and two placement methods (A1 = Drilling method and A2 = Broadcast method). The statistical analysis of phosphorus levels and placement exhibited significant differences to the maturity days, plant height, tiller production, spike length, grains per spike, seed index, harvest index and grain yield ha<sup>–1</sup>. However, the interactions of P levels and placement in all crop characters were non-significant except the grain yield/ha<sup>–1</sup>. The results revealed that application of 90 kg P ha<sup>–1</sup> prolonged 143 days for maturity, taller plants (100.16 cm), more tiller plant<sup>–1</sup> (13.50), lengthy spikes (12.83 cm), more grains spike<sup>–1</sup> (51.33), heavier seed index (48.16 g), better harvest index (50.82%) and satisfactory grain yield (4240.50 Kg?ha<sup>–1</sup>). The unit increase in grain yield was positively correlated with the increased values of observed crop parameters by extending the values of maturity r = 0.85, plant height r = 0.94, tillers plant r = 0.96, spike length r = 0.95, grains spik<sup>–1</sup> r = 0.97, seed index r = 0.95 and harvest index r = 0.97. It was concluded that 90 kg P ha<sup>–1</sup> was superior level of phosphorus if, applied with seed drilling for obtaining satisfactory grain yield of wheat crop.
