PJB-2005-44
DEVELOPMENT OF CHICKPEA BLIGHT RESISTANT VARIETY (DASHT) USING COMBINATION OF BULK POPULATION AND PEDIGREE BREEDING METHOD
AHMAD BAKHSH, MUHAMMAD ARSHAD* AND S. M. IQBAL
Abstract
"Dasht" is a blight resistant variety of Desi chickpea with intermediate growth habit. It was released in the year 2002 for Potowar and rice based areas. Dasht originated from a cross between C 44 and ICC 7770. C 44 is a local genotype well adapted to chickpea growing area of Punjab, whereas ICC 7770 is an Ascochyta blight resistant line obtained from ICRISAT, India. F1 to F6, progenies of this cross were advanced by modified bulk method, negative selection/eradication of undesirable plants. Single plant selection was made from F6 generation and subsequently, their progenies were evaluated, using an approach based on bulk population and pedigree breeding methods. Resistance against Ascochyta blight (blight score 3 - 5) and high yield potential (2400 kg ha-1) are the major attributes of Dasht that make it a superior variety for its target regions. Dasht is more cold tolerant and more efficient in iron uptake than C 44 and CM 98. The hundred seed weight of this variety is 24 gm and seeds are round in shape having 23% protein, 50% carbohydrates, 5.5% fats and 9.5% crude fiber. Plant type of Dasht is semi erect with plant height 50 - 80cm and 1.5-2.7 inter-nodal lengths. Pods are ovate with little depression on dorsal side and contain 1 - 2 seeds. Number of leaflets vary from 13-19, flowers are pink with 15-18 mm long pedicle and 2-6 mm long bracts and 7-9 mm long keel. The cooking time of Dasht is 8 minutes less than those of C 44 and Paidar 91. Dasht performs better in Potowar when planted in 2nd fortnight of October, keeping 20-25 kg acre-1 seed rate and 30 cm row spacing.
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