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    Volume 2 Number 5 May 2016

    Minor Crops in Bangladesh: Scope and Limitations


    Pages: 51-56
    Authors: Md. Shafiqul Islam
    Abstract
    Minor crops are not available in all the time. These crops are less in number. Minor crops are basically cultivated in fewer amounts and it is cultivated in certain period of time. The study was conducted in two villages, one was from Tarash Upazila under Sirajgonj District and another was from Rajbari Sadar Upazila under Rajbari District. This study was conducted on the period of two month staring from June to July, 2013.The sample size was 30 (15 from each area).There are some minor crops in those two areas. Those minor crops are Barly, Jab, motor, Cheena, kaon, khesari, Til, Groundnut, Mashkalai, Soyabean. In the past those minor crops were cultivate in large amount. At present the numbers of minor crops are decreasing. There are some reasons of decreasing minor crops at present. The demands of minor crops are decreasing. The seeds are not available. These minor crops are not profitable. There are some special used of minor crops. For example; Oil can be made from Soyabean and it is used to cook food. Kaon can be used to make one kind of Bengali sweet which is called khir or payes. The traditional cultivation tools are used to cultivate minor crops. For example; cow is used to plow the land. There is less use of modern cultivation tools. There are some problems of minor crops. It takes long time to cultivate minor crops. There are some diseases of minor crops which can destroy the production of minor crops. These minor crops are not profitable. From our study we got that people should be aware to avoid the problems of minor crops.


    Multiple Race Inoculation as an Option in Breeding for Resistance to C. Lindemuthianum In Common Beans


    Pages: 45-50
    Authors: Chilipa L. N. K. ; Lungu D.M. ; Tembo L.
    Abstract
    Bean anthracnose caused by Colletotrichum lindemuthianum causes severe common bean (Phaseolus vulgaris L.) yield losses of up to 100% worldwide. Breeding for resistance is the best method to mitigate this problem. The objective of this study was to investigate the appropriateness of C. lindemuthianum multiple race inoculation in breeding for resistance to C. lindemuthianum in common bean. Seven parents with varying reactions to Colletotrichum lindemuthianum were mated in all possible combinations to generate fourty-two progeny crosses. These crosses together with their parents were evaluated in the green house for their reaction to C. lindemuthianum. The experiment was laid out following a Completely Randomised Design (CRD) with four replications. The treatments used were: (1) inoculation with race 54; (2) inoculation with race 311 and (3) multiple inoculation of race 54 X race 311. The mean genotypic score among treatments were found to be 1.76, 2.62 and 3.06 for treatments 1, 2 and 3 respectively. There were significant differences (P < 0.01) among genotypic responses to C. lindemuthianum with respect to race 311. The t-test analysis revealed that multiple race inoculation (Treatment 3) had a higher mean disease severity expression than those of singly race inoculations (Treatment 1 and Treatment 2) (P< 0.01). The results suggest that multiple infection had a synergistic effect, indicating its suitability for screening resistant genotypes in the breeding program.