Search or add a thesis

Advanced Search (Beta)
Home > Physiology and Integrated Management of Colletotrichum Falcatum Causing Red Rot of Sugarcane

Physiology and Integrated Management of Colletotrichum Falcatum Causing Red Rot of Sugarcane

Thesis Info

Access Option

External Link

Author

Hafiz Tassawar Abbas

Program

PhD

Institute

University of Agriculture

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2016

Thesis Completion Status

Completed

Subject

Plant Pathology

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/9699/1/Hafiz_tassawar_abbas_Plant_Pathology_UAF_2016.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726909711

Similar


Red rot of sugarcane incited by Colletotrichum falcatum (Went) is the most destructive disease in Punjab and Sindh. It infects sugarcane and causes huge losses. Twenty six infected sugarcane stem samples were collected from major sugarcane growing districts of Punjab comprising Faisalabad, Jhang, Chiniot and Sargodha for further studies. C. falcatum was isolated from each location and considered as a separate strain. Based on growth on oat meal agar medium, the cultures were assigned to two major groups. Among four strains, strain-285 was found to be more virulent belonged to light type and 394 was least aggressive belonged to dark type respectively in pathogenicity test. Out of twenty, nine varieties/lines exhibited resistant response, three moderately resistant, four moderately susceptible and four showed susceptible response for strain-394 belonged to dark type during first year as compared to second year when nine indicated resistant reaction, two moderately resistant, five moderately susceptible and four exhibited susceptible reaction which presented least disease reaction followed by 234, 1148 and 285 respectively belonged to light type. Maximum growth of strain-285 was observed at temperature 30 °C (8.6 cm), pH 7 (6.8 cm) and oat meal agar medium (8.6 cm) after 10 days followed by 1148, 234 and 394 individually. Among fungicides Mancozeb (95.00 %) at 3 % concentration and Plant extract Azadirachta indica (89.90 %) at S (standard dose) exhibited maximum inhibition of strain-234 on tenth day of incubation as compared to other strains like 1148, 394 and 285 separately. Mancozeb and A. indica expressed significant inhibitory effect against the pathogen and also reduced percentage disease incidence in combined method (Sett treatment + soil treatment) under greenhouse and field conditions respectively. Strain-285 was found to be most aggressive which showed maximum loss in Brix (%), Polarity Reading, Polarity (%), Purity (%), C.C.S % and Sugar Recovery % followed by 1148, 234 and minimum loss expressed in canes inoculated with strain-394 in qualitative parameters of yield of sugarcane varieties/lines and in the estimation of yield losses during 2012-13 as compared to 2011-12 separately.
Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

انقلابی شاعر

انقلابی شاعری

ہاں جاں کے زیاں کی بھی ہم کو تشویش ہے لیکن کیا کیجیے

ہر راہ جو ادھر کو جاتی ہے مقتل سے گزر کر جاتی ہے

فیض احمد فیض ؔ کی شاعری پڑھنے کے بعد ایسا محسوس ہو تا ہے کہ فیض نے ساری انقالابی شاعری بھٹو اور پاکستان پیپلز پارٹی کے کارکنوں کی جدو جہد پر لکھی ہو ۔

                                                                                                                میرا قائد میر مرتضی بھٹو

 

تو قیدی ہے پرچھائیں کا

تو قیدی ہے پرچھائیں کا

میں عاشق بھٹو سائیں کا

میں مرنے کو تیار

اک تیر ہے اک تلوار

 

رحمت اﷲ انجم

قتل گاہوں سے چن کر ہمارے علم

اور نکلیں گے عشاق کے قافلے

جن کی راہ طلب سے ہمارے قدم

مختصر کر چلے درد کے فاصلے

یوم شہادت 14ستمبر1983ء

رحمت اﷲانجم شہید (بفہ ہزارہ )

 

جوا اور اس کے انسان کی معاشی اور معاشرتی زندگی پر پڑنے والے اثرات اور اسلامی تعلیمات کا مطالعہ

Among the prohibited actions, gambling is on the top. There is definite prohibition  in many verses of the Holy Quran and the hadiths of the prophet. Despite such strict prohibitions by Islam, the gambling has been entered in economy in different shapes. Among the different types of gambling, some  forms are  very  clear, every one considers it wrong,   whereas  some kinds of  gambling are not considered wrong by the peoples. Whatever the name of gambling is, it is illegal and immoral, because changing name doesnot change its reality. Every type of gambling creates destruction in society and economy and brings various evils with it. Gambling  makes man greedy, miser, lover of  money, jealousy, wastage  of time and money. Such evils takes men away from generosity and  worship of Allah, carelesness in his duties and man becomes  immoral and irrespossible. Therefore, in any society where gambling is spread, the concept of peace, love, humanity bacomes  meaning less. As a result, the poor get poorer and the  rich grow richer.

State Estimaton Technique for Impedance Matching in Distribution Feeder Reconfiguration

State estimation has been adopted by the power system researchers in the late 1960’s. Later on, state estimation was applied to the transmission system. Recently state estimation has become cornerstone among the modern control centers tools for the automation of distribution system. In this research work, state estimation has been implemented for automatic feeder reconfiguration. Automatic feeder reconfiguration can be accomplished by matching the impedances of two different feeders. Once the impedances are matched, static transfer switch perform the feeder reconfiguration effectively and efficiently. The liability of power distribution companies is to provide reliable and good quality power to the customers. Due to the technological advancement and the large scale production, usage of the sensitive equipment has been increased. The sensitive equipment requires quality power through reliable power delivery system. Power delivery system includes feeders and laterals to transfer power from the substation to the consumer end. As the feeders and the laterals are radially operated, therefore the chances of power interruption always exist. Power interruption may occur either due to faults or due to the maintenance or replacement of any components of the distribution system e.g. a distribution transformer. Voltage sag is another cause of interruption of sensitive equipment. To overcome this problem, sensitive equipment should be fed through two independent feeders. If the preferred feeder fails, the sensitive load should be transferred to the alternate feeder. A fast and efficient transfer switch can complete this transfer. Static transfer switch (STS) system has been developed to transfer the load from the preferred feeder to the alternate feeder when voltage sag or fault occurs on the preferred feeder. The most important parameter of the STS-system is the speed of operation or the transfer time so that the load should not be interrupted. To reduce the transfer time and hence to expedite the transfer process, it is necessary that both feeders have the same voltage angle at the point-of-installation (PoI) of the STS. If the impedances of both the feeders are identical then voltage phase difference will be zero. To match the impedance, state estimator has been designed to estimate the voltage angle of both the feeders. To mitigate the voltage phase difference, shunt capacitor has been installed and consequently the transfer time of the STS has been reduced. However, the control logic strategy of the STS-system also affect the transfer time. Two different control logic techniques namely delay logic and forced commutation technique, have been developed and simulated using PSCAD/EMTDC software. If the delay logic technique is utilized then the voltage phase angle of both feeders must be identical. The developed state estimation technique can be implemented to match the impedances and hence the voltage angle to reduce the STS transfer time. However, forced commutation technique can accommodate the phase difference by commutating the outgoing thyristor forcefully. But forced commutation technique require more components e.g. capacitor, inductor, auxiliary thyristors etc. Both techniques are implemented to solve the problems related to the feeder overloading. The problem of overloading has been solved through feeder reconfiguration. STS-system installed at critical location, transfer the sensitive load to the lightly loaded alternate feeder. This phenomenon can be termed as feeder reconfiguration using load-balancing. The development of the STS-system has solved the problem of load interruption. The reliability of the power distribution system has been improved and the sensitive load now operates without power interruption.