tassawar abbas - Academia.edu (original) (raw)

Papers by tassawar abbas

Cercetari agronomice in Moldova, 2013

An experiment to evaluate comparative performance of various sunflower hybrids for yield and its ... more An experiment to evaluate comparative performance of various sunflower hybrids for yield and its related attributes was conducted at the Agronomic Research Area, University of Agriculture, Faisalabad, Pakistan, during autumn 2008. Twelve sunflower hybrids, i.e. G-101 (H1), DK-4040 (H2), SF-187 (H3), S-278 (H4), Hysun-33 (H5), FH-37 (H6), Ausigold-61 (H7), Ausigold-62 (H8), FSS-50 (H9), NX- 00989 (H10), NX-00997 (H11) and XIYU-12 (H12) were included in the trail. The experiment was laid out in randomized complete block design (RCBD), having three replicates with plot size of 5m x 3m. Statistical analysis of the data showed significant differences for all the parameters. It was observed that Hysun-33 showed greater plant height (148.47 cm) and achene per head (682.70) than all other hybrids, however in case of yield (3891.0 kg ha-1) and other related traits such as number of plants m-2, leaf area index, head diameter and 1000-achene weight SF-187 displayed better performance by record...

Pakistan Journal of Agricultural Sciences, Apr 1, 2016

Sugarcane (Saccharum officinarum L) is an economically important cash crop of Pakistan (GOP, 2014... more Sugarcane (Saccharum officinarum L) is an economically important cash crop of Pakistan (GOP, 2014) which is grown in tropical and subtropical areas of world (Chatenet et al., 2001). Cane syrup, ethanol, rum and wax are the main by products derived from sugarcane whereas molasses are used as sweetener, alcohol fermentation and feed stalk. (Mackintosh 2000; Sansoucy et al., 1988). It covers an area of over 1.17 million ha with an average productivity of 66.5 million tons ha-1 (GOP, 2014) which is quite low when compared with other major sugarcane producing countries of the world like Brazil, India, China, Thailand and Mexico. Pakistan ranks 4 th in sugarcane acreage and conquers 5 th position in sugar production worldwide (Shahina et al., 2007). More than 100 diverse diseases have been reported in sugarcane which are caused by fungi, bacteria, viruses, nematodes and pyhtoplasma (Bharti et al., 2012). A number of sugarcane diseases like whip smut, pokkah boeng, red rot, sugarcane mosaic virus, red and yellow stripes and rust are reported in Pakistan (Anwar et al., 2010). Among these, red rot of sugarcane is most important one caused by Colletotrichum falcatum. It is demonstrated by numerous references to its economic importance as the world has witnessed severe red rot epiphytotic at different times. It was first reported by Went in Java (Indonesia) in 1893 (Went, 1893) which was later on renamed as red rot by Butler in 1906. In Pakistan, it was first described in 1986 (Ahmed et al., 1986). It is responsible for 5-10% yield, 30 to 87% juice, 28.5 to 82.7% cane weight reduction and 30 to 74% in expected sugar recovery (Ahmed et al., 1986). Colletotrichum falcatum hydrolyses the stored sucrose by producing the enzyme invertase which breaks the sucrose molecule into glucose and fructose resulting into increased molasses (Sehtiya et al., 1993). The ideal way to combat the disease is the development of the resistant sugarcane lines/varieties (Gupta et al., 1982: Viswanathan et al., 1996; Malathi et al., 2008). Fungicides play a vital role in disease management because they control many diseases satisfactorily (McGrath, 2004). Cowan (1999) recorded that Plants contain extensive variety of secondary metabolites, such as tannins, terpenoids, alkaloids, and flavonoids, having antimicrobial properties. Growth inhibition of C. falcatum was observed by various plant extracts (Imtiaj et al., 2007). The efficacy of plant extracts of Azadirachta indica and Allium sativum against Colletotrichum spp has been expressed by Kumar and Yadav (2007). Keeping this in view, recent study was accomplished to find out the role of best fungicide and antifungal plant extract which have inhibitory effect against different strains of C. falcatum of red rot disease of sugarcane.

Cercetari agronomice in Moldova, 2013

An experiment to evaluate comparative performance of various sunflower hybrids for yield and its ... more An experiment to evaluate comparative performance of various sunflower hybrids for yield and its related attributes was conducted at the Agronomic Research Area, University of Agriculture, Faisalabad, Pakistan, during autumn 2008. Twelve sunflower hybrids, i.e. G-101 (H1), DK-4040 (H2), SF-187 (H3), S-278 (H4), Hysun-33 (H5), FH-37 (H6), Ausigold-61 (H7), Ausigold-62 (H8), FSS-50 (H9), NX- 00989 (H10), NX-00997 (H11) and XIYU-12 (H12) were included in the trail. The experiment was laid out in randomized complete block design (RCBD), having three replicates with plot size of 5m x 3m. Statistical analysis of the data showed significant differences for all the parameters. It was observed that Hysun-33 showed greater plant height (148.47 cm) and achene per head (682.70) than all other hybrids, however in case of yield (3891.0 kg ha-1) and other related traits such as number of plants m-2, leaf area index, head diameter and 1000-achene weight SF-187 displayed better performance by record...

Pakistan Journal of Agricultural Sciences, Apr 1, 2016

Sugarcane (Saccharum officinarum L) is an economically important cash crop of Pakistan (GOP, 2014... more Sugarcane (Saccharum officinarum L) is an economically important cash crop of Pakistan (GOP, 2014) which is grown in tropical and subtropical areas of world (Chatenet et al., 2001). Cane syrup, ethanol, rum and wax are the main by products derived from sugarcane whereas molasses are used as sweetener, alcohol fermentation and feed stalk. (Mackintosh 2000; Sansoucy et al., 1988). It covers an area of over 1.17 million ha with an average productivity of 66.5 million tons ha-1 (GOP, 2014) which is quite low when compared with other major sugarcane producing countries of the world like Brazil, India, China, Thailand and Mexico. Pakistan ranks 4 th in sugarcane acreage and conquers 5 th position in sugar production worldwide (Shahina et al., 2007). More than 100 diverse diseases have been reported in sugarcane which are caused by fungi, bacteria, viruses, nematodes and pyhtoplasma (Bharti et al., 2012). A number of sugarcane diseases like whip smut, pokkah boeng, red rot, sugarcane mosaic virus, red and yellow stripes and rust are reported in Pakistan (Anwar et al., 2010). Among these, red rot of sugarcane is most important one caused by Colletotrichum falcatum. It is demonstrated by numerous references to its economic importance as the world has witnessed severe red rot epiphytotic at different times. It was first reported by Went in Java (Indonesia) in 1893 (Went, 1893) which was later on renamed as red rot by Butler in 1906. In Pakistan, it was first described in 1986 (Ahmed et al., 1986). It is responsible for 5-10% yield, 30 to 87% juice, 28.5 to 82.7% cane weight reduction and 30 to 74% in expected sugar recovery (Ahmed et al., 1986). Colletotrichum falcatum hydrolyses the stored sucrose by producing the enzyme invertase which breaks the sucrose molecule into glucose and fructose resulting into increased molasses (Sehtiya et al., 1993). The ideal way to combat the disease is the development of the resistant sugarcane lines/varieties (Gupta et al., 1982: Viswanathan et al., 1996; Malathi et al., 2008). Fungicides play a vital role in disease management because they control many diseases satisfactorily (McGrath, 2004). Cowan (1999) recorded that Plants contain extensive variety of secondary metabolites, such as tannins, terpenoids, alkaloids, and flavonoids, having antimicrobial properties. Growth inhibition of C. falcatum was observed by various plant extracts (Imtiaj et al., 2007). The efficacy of plant extracts of Azadirachta indica and Allium sativum against Colletotrichum spp has been expressed by Kumar and Yadav (2007). Keeping this in view, recent study was accomplished to find out the role of best fungicide and antifungal plant extract which have inhibitory effect against different strains of C. falcatum of red rot disease of sugarcane.