Aqeel Afzal Khan — новинки

Study on correlation and path coefficient analysis for cane yield and yield related traits in ten accession of sugarcane (Saccharum officinarum L.) was conducted Analysis of variance indicated highly significant differences among the accessions for all the traits. The study of path analysis for yield related traits depicted that plant height, cane thickness, leaf area, internodal distance and brix value had the direct negative effects on yield. Study carried out to investigate the response of different sugarcane varieties to Callogenesis in order to analyze variation for sugarcane mosaic virus resistance. Total 26 parent plants and 64 somaclones of HSF-240 were selected for screening of virus through Das ELISA test. Four parent plants out of 26 showed negative and Ten somaclones showed positive reaction to the disease and were declared as susceptible.Somaclones produced were also analyzed by microsattelite molecular markers in order to analyze the vriation between parents and somaclones produced at molecular level.It may be concluded from the results that SSRs can be used for identification of somaclonal variation and the relationship between parents and somaclones.

Study was conducted to evaluate the effect of temperature, light, salinity, drought stress, field capacity, pH and sowing depth on germination of Carthamus oxyacantha M. Bieb. All experiments were laid out in completely randomized design each with four replications. Data were recorded for 15 days on parameter like germination percentage, time to start germination, time to 50% germination, mean germination time and germination index. Mean germination time and germination index were significant in both salinity and drought stress, except time to start germination and time to 50% germination which were non significant. Increasing field capacity from 0 to 100% increase emergence percentage, time to start emergence, time to 50% emergence, mean emergence time and emergence index. Maximum germination was occurred at neutral pH 7. Emergence decreased with increase in sowing depth with maximum seed grown (72.50%) at soil surface 0 cm and minimum (35.00%) at 6cm.

Sugarcane is one of the major sugar crops of the world. In Pakistan, it occupies a significant position in the agricultural economy. The present investigations were carried out to examine the genetic variability and contribution of some morphological characters for cane yield and response of genotypes of sugar cane toward callus formation, regeneration and screening for virus. The results pertaining to analysis of variance elucidated highly significant differences among the accessions for all the traits. The tissue culture study revealed that at different treatment over all performance of HSF-247 was better for callus induction and genotype HSF-242 performed best at 3mg/l of 2, 4-D level. All the investigation in the correlation study proved quite successful because a handful increase in cane weight and plant height is possible as they provide information regarding a suitable combination of characters with their maximum influence on the enhancement of cane weight and plant height. The clone will be selected with such combinations of characters which to give maximum improvement in their cane yield.

A field trial to compare the non-chemical weed management approach in dry direct seeded fine rice with the chemical methods was conducted at the Agronomic Research Farm, University of Agriculture, Faisalabad during Kharif, 2009. The experiment was laid out in randomized complete block design (RCBD) with four replications. Results revealed that manual weeding recorded maximum (99 %) reduction in total weed density and dry weight. Nominee 100SC suppressed weed density and dry weight by >75% over control. Among non-chemical weed management strategies, soil incorporation of sorghum residues at 8 t ha-1 accounted for 52 and 58 % reduction in above said weed attributes. Maximum yield (4.17 t ha-1) was recorded by manual weeding. Manual weeding gave highest net benefits (Rs. 127217 ha-1), while Nominee 100SC scored maximum (23076 %) marginal rate of return.

A greenhouse and field research was conducted to evaluate twenty accessions for genetic potential and path coefficient analysis under salt stress and normal conditions for various plant traits in sunflower.The experiment was conducted in completely randomized design with three repeats. The results suggested that expression of all traits were reduced with increase the salt stress levels.The accessions G-36, G68, A-23, G-61 and A-185 showed significant and positive results for all traits with biomass under all salt stress levels. The yield experiment was conducted in randomized complete block design and the results showed the highest positive correlation with total achene weight was shown by 1000 grain weight and oil content and highest positive direct effect on total achene weight was shown by oil content, fresh head diameter, plant height and days to 50% flowering. The accessions G-64 and G-36 showed significant and positive correlation with yield.

Investigations were done to find out the Agro-qualitative response of forage maize (Zea mays L.),blended and intercropped with forage legumes.The experiment consisted of 10 treatments containing different combinations of maize with legumes i.e. sesbania and cluster bean.This study was focused to achieve high quantity and better quality of maize fodder.Aim of the study was to determine the more efficient method of sowing and to have a look on the most favorable combination of maize and legumes. The better sowing method and combination of legumes with non-legume fodder can provide the higher quantity and better quality of fodder to the dairy industry of Pakistan.Data on growth, yield and quality parameters was recorded by using standard procedures, statistically analyzed using Fishers analysis of variance technique and least significant difference (LSD) test at 5 % probability will be used to compare the treatment’s means.Keeping in view the results of the present study, it was concluded that the good quantity and quality of forage maize (Zea mays L.) sown mixed with forage legumes can be obtained by interrow growing of maize and sesbania in 30 cm apart rows under Sahiwal conditions.

Molecular markers are useful for precise assessment of diversity and phylogenetic relationships among different species and related genera at the DNA level without some of the over simplifying assumptions associated with calculating genetic diversity based on pedigree history. The objective of present study was to have a basic understanding of the genetic diversity that exists in the germplasm available for breeding, which is fundamental for the success of any breeding program. For this study 40 sugarcane accessions were collected from the germplasm source. The accessions consist of advance lines, approved varieties and wild species (S. barberi). Random Amplified Polymorphic DNA (RAPD) and Micro-satellite (SSR) analysis was performed using 80 primers. Use of SSR and RAPD primers together offers the potential of more cost effective data acquisition than is the case with other technologies. These primers sequence vary in different varieties of sugarcane, and this variability may be used to develop molecular markers for mapping sugarcane genes and traits, these sequences being the part of sugarcane genome predicted to be most immediately useful to plant breeder and geneticists.

Sugarcane is a major cash crop of the world and occupies significant position in agricultural economy of Pakistan Study on correlation and path coefficient analysis on ratoon crop for cane yield and yield related traits in 20 accessions of sugarcane (Saccharum officinarum L.) was conducted in the field of the Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, during the 2008-09.Analysis of variance indicated highly significant differences among the accessions for all the traits. Among the traits plant height, leaf area, dry matter contents, bagasse weight and cane yield had the positive and significant…

Saccharum is a complex genus characterized by high ploidy levels and composed of at least six distinct species – S. officinarum, S. barberi, S. sinensis, S. spontanum, S. robustum and S. edule. Principal Component Analysis in ten accessions of sugarcane (Saccharum officinarum L.) was conducted; analysis of variance indicated highly significant differences among the accessions for all the traits. Principal Component Analysis (PCA) is a way of identifying patterns in data, and expressing the data in such a way as to highlight their similarities and differences. Micro propagation is a technique to produce disease free plants. The aim of the present study was to investigate the response of three sugarcane accessions for callogenesis and organogenesis.