Posts Tagged ‘Indian Phytopathology’

Could farmer interest in a diversity of seed attributes explain adoption plateaus for modern maize varieties in Malawi?

Posted by Carelia Juarez on , in Journal Articles

Published in Food Policy 37 (5): 504-510, 2012

Rodney Lunduka, Monica Fisher and Sieglinde Snapp

This study uses new data from a household survey (n = 179) in Mulanje District, Malawi to examine whether the observed adoptionplateaus for modernmaizevarieties in Malawi partly reflect farmerinterest in adiversity of maizeseedattributes. Regression results for the study area indicate that specific attributes of different maizevarieties are an important influence on their use. The benefits to growing hybrid maize appear to be yield and drought tolerance. Open pollinated varieties are selected by farmers who value early maturity. Local maizevarieties are popular among farm households owing to a number of favourable processing and consumption characteristics: storability, poundability, flour-to-grain ratio, and taste. Further research using nationally representative data is needed to assess whether findings for Mulanje District can be generalized to Malawi as a whole. If future studies agree with the results herein then maize breeding research programs in Malawi should consider adiversity of traits beyond grain yield to encompass the range of production, processing, and consumption attributes that are valued by farmers.


Bipolaris sorokiniana of barley: infection behaviour in different members of Poaceae

Posted by on , in Journal Articles

Published in Indian Phytopathology  64(1): 28-31, 2011

Bipolaris sorokiniana of barley: infection behaviour in different members of Poaceae

B.M. Bashyal, Ramesh Chand Kushwaha, A.K. Joshi and Sumit Kumar

Host range and infection behaviour of Bipolaris sorokiniana of barley was studied in wheat, barley, rice, phalaris, maize, pearlmillet and sugarcane. B.  sorokiniana of barley  varied in percent germination, germination behaviour, germ tube length and number of appressoria formation in different hosts. Growth of pathogen was arrested at appressoria formation stage in sugarcane and it could not infect the host. Further accumulation of less cell wall bound phenolics (4-hydroxybenzoic acid, vanillic acid, 4-hydroxybenzaldehyde, vanillin and 4-coumaric acid) and phenylalanine ammonia lyase (PAL) in barley and wheat indicated the role of these compounds in conferring resistance against B. sorokiniana of barley.