PJB-2006-34
A NEW HIGH YIELDING MUNGBEAN (VIGNA RADIATA (L.) WILCZEK) VARIETY "RAMZAN" FOR THE AGRO CLIMATIC CONDITIONS OF NWFP
G. S. S. KHATTAK*, M. ASHRAF**, I. SAEED AND B. ALAM
Abstract
An exotic genotype VC 1482C and a local mungbean genotype NM 92 were hybridized at the Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad during kharif (July-October) 1998. Selection of the high yielding recombinant NFM-12-12 from segregating populations, and evaluation in various replicated yield trials for yield potential and stability test were carried out from 1999 to 2004. The proposal of the recombinant NFM-12-12 was submitted for approval as commercial variety for NWFP to the Provincial Seed Council meeting held on 19th September 2005 at NWFP Agricultural University, Peshawar. The Provincial Seed Council approved the recombinant NFM12-12 as a commercial variety under the name "Ramzan" for general cultivation in NWFP. The major improvement in NFM-12-12 is manifested in the form of increase in seed size, decrease in plant height, stiff stem and earliness in maturity by a margin of 10 days as compared to standard variety NM 98. The large seed size of NFM-12-12 is the main contributing factor towards the increase in seed yield compared to NM 98. The high harvest index of NFM-12-12 invokes its greater physiological efficiency in partitioning the photosynthates towards grain formation leading to marked increase in grain yield. Short stature and stiff stem of NFM-12-12 helps in showing resistance to lodging. Clusters per plant, pods per plant, branches per plant, pod length, seeds per pod and protein contents of NFM-12-12 also compare favorably with parent NM 92 and standard NM 98. NFM-12-12 has 28-36% high seed yield potential compared to the standard variety NM 98 and parent NM 92. An average experimental seed yield of Ramzan was 1962 kg ha-1 at NIFA, Peshawar.
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