HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Ghafoor, A. Articles by Anwar, R. Search for Related Content PubMed Articles by Ghafoor, A. Articles by Anwar, R. Agricola Articles by Ghafoor, A. Articles by Anwar, R.

REGISTRATIONS OF CULTIVARS

Registration of ‘Pk-45921’, a Dual-Season Black Gram Cultivar

Plant Genetic Resources Program, Institute of Agri Biotechnology and Genetic Resources, National Agricultural Research Center (NARC), Park Road, Islamabad, Pakistan

^* Corresponding author (ghafoor59{at}hotmail.com)

‘Pk-45921’ black gram [Vigna mungo (L.) Hepper] (Reg. no. CV- 237, PI 636475) was developed by the Institute of Agricultural Biotechnology and Genetic Resources, National Agricultural Research Center (NARC), Islamabad, Pakistan, and approved for release by the Varietal Evaluation Committee (VEC), Pakistan, for general cultivation.

Black gram is an important summer pulse crop of many Asian countries including Pakistan, India, Bangladesh, Nepal, Thailand, Philippines, and Korea. It is cultivated under a wide range of predominantly rainfed agroecological zones on marginal lands. Black gram seed grains provide significant dietary protein for the populations in this region. It has the potential to fit into the rice–wheat cropping systems of South Asia, but only if cultivars that mature from mid April through June are incorporated. From 1995 to 2000, genetically broad-based, black gram germplasm was evaluated under field conditions for early maturing genotypes with high yield potential (Ghafoor et al., 2001; Ghafoor and Ahmad, 2003). Fifteen genotypes were selected and subsequently tested in 2001, 2002, and 2003 in two seasons (spring and summer) in replicated trials under field conditions at the National Agricultural Research Center (NARC), Islamabad, Pakistan (33'40° N; 73'07° E; 540 meters above sea level). During all three years, experiments were planted with four replications in the second week of April for the spring season and in the last week of July for the summer season. Ten rows of 5-m length were planted with 30 cm and 10-cm inter- and intrarow spacing, respectively. Soil was sandy loam Typic Cambrothid with silty clay variant, deep, well drained and moderately calcareous (Hassan et al., 2003). The pH of the soil was 8.1, EC 0.18 dS m^–1, and organic matter 8.6 g kg^–1 (Rashid et al., 1994). The genotypes consistently proved their superiority, and out of these, eight matured within 70 d after planting in the spring and summer season, with Pk-45921 being exceptional (Ghafoor et al., 2003).

Pk-45921 was isolated from local landraces collected from the predominantly rainfed Narowal district of Punjab province. It matures within 70 d during both spring and summer seasons producing an average of 800 and 1200 kg ha^–1, spring and summer, respectively, over 3 yr. Plants of this cultivar are pubescent, semierect, with plant height averaging 30 cm in the spring and 40 cm in the summer. Seeds are brown with black spots and weigh 4.59 g 100 seed^–1. Grain yield of this cultivar is comparable with ‘Mash 1’, an approved black gram variety that matures within 75 d during the summer season but takes 85 d during the spring season. Pk-45921 is tolerant to Mungbean yellow mosaic virus (MYMV), a serious threat in South East Asian countries. Incorporation of early maturing and high yielding black gram cultivars in rice–wheat cropping systems of South Asian countries are expected to enhance farm productivity (Zahid et al., 1998).

Seed of this cultivar has been maintained in the gene-bank of the Plant Genetic Resources Program, National Agricultural Research Center, Islamabad, Pakistan, and is available for research purpose on request. It is requested that appropriate recognition of the sources be given if this material contributes to the development of new germplasm, cultivars or parental lines.

ACKNOWLEDGMENTS

Cooperation of farmers from where seeds were collected is highly appreciated. Assistance from Dr. M.M. Hassan and S.M. Gill, Land Resources Institute, NARC is highly acknowledged for critical discussion and providing data regarding fields where experiments were conducted.

NOTES

Registration by CSSA.

Accepted for publication January 31, 2005.

REFERENCES

• Ghafoor, A., and Z. Ahmad. 2003. Exploitation of Vigna mungo (L.) germplasm using multivariate analysis based on agronomic traits. Pak. J. Bot. 35(2):187–196.
• Ghafoor, A., A. Sharif, Z. Ahmad, M.A. Zahid, and M.A. Rabbani. 2001. Genetic diversity in Black gram (Vigna mungo L. Hepper). Field Crops Res. 69:183–190.[CrossRef]
• Ghafoor, A., A.S. Qureshi, M. Arshad, and Z. Ahmad. 2003. [Vigna mungo (L.) Hepper] Identification of early maturing and high yielding lines of black gram. Proceedings of Pakistan Acad. Sci. 40(2):127–134.
• Hassan, M.A., M.S. Akhtar, S.M. Gill, and G. Nabi. 2003. Simulation of chloride transport based descriptive soil structure. Pak. J. Sci. Indust. Res. 46(6):424–431.
• Rashid, A., F. Hussain, M.B. Baig, and N. Bughio. 1994. Soil fertility status of experimental area at National Agricultural Research Center, Islamabad, Pakistan. p. 16. Pakistan Agricultural Research Council, Islamabad, Pakistan.
• Zahid, M.A., R.A. Mann, and Z. Shah. 1998. Overview and prospects for enhancing residual benefits in rice and wheat cropping systems in Pakistan. p. 190–206. In J.V.D.K. Kumar Rao et al. (ed.) Residual effects of legumes in rice and wheat cropping systems of the Indo-Gangetic Plain. International Crop Research Institute for the Semi-Arid Tropics, Andhra Pradesh, Patancheru, India.

This Article Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Ghafoor, A. Articles by Anwar, R. Search for Related Content PubMed Articles by Ghafoor, A. Articles by Anwar, R. Agricola Articles by Ghafoor, A. Articles by Anwar, R.