| Pak. J. Bot., 37(2): 325-335, 2005. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
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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.
Pulses Programme, Crops Sciences Institute, National Agricultural Research
Center (NARC), Islamabad, Pakistan. |
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