A comparative study of hybrid and inbred cultivars for germination and other related traits of pigeonpea
DOI:
https://doi.org/10.59797/jfl.v25i4.1044Keywords:
Germination, Hybrids, Inbred cultivars, Pigeonpea, Seedling vigour indexAbstract
Eleven pigeonpea hybrids and 4 inbred cultivars were evaluated to study seed germination and seedling growth parameters using ‘Between Paper Towel’ (BPT) method. The test was conducted over a period of 10 days at room temperature in a seed germinator. Data were rec orded on test we ight, germination, root length, shoot length, shoot to root ratio, seedling dry weight and seedling vigour index. Significant differences were observed among entries for all the traits studied. Significantly greater values for germination (99.5%), root length (11.6 cm), seedling vigour index (1832), seedling dry weight (4.7 g) and test weight (11.4 g) were recorded for hybrids compared to inbred lines. The presence of longer root in the hybrids resulted in producing lengthier roots and greater tolerance to drought during early growth stages. Thus, greater seedling vigour of the hybrids would also contribute to their higher plant vigour and seed yields.
References
Abdul-Baki AA and Anderson JD. 1973. Relationship between decarboxylation of glutamic acid and vigour in soybean seed. Crop Science 13: 222-226.
Brakke MP and Gardner FP. 1987. Juvenile growth in pigeonpea, soybean, and cowpea in relation to seed and seedling characteristics. Crop Science 27: 311-316.
Chauhan YS, Johansen C and Saxena KB. 1995. Physiological basis of yield variation in short-duration pigeonpea grown in different environments of the semi-arid tropics. Journal of Agronomy and Crop Science 174: 163-171.
ISTA. 2007. International Rules for Seed Testing International Seed Testing Association (ISTA), Switzerland.
Kumar RR, Krishna K and Naik GR. 2011. Variation of sensitivity to drought stress in pigeonpea (Cajanus cajan (L.) Millsp.) cultivars during seed germination and early seedling growth. World Journal of Science and Technology 1: 11-18.
Mercer KL, Shaw RG and Wyse DL. 2006. Increased germination of diverse crop-wild hybrid sunflower seeds. Ecological Applications 16: 845-854.
Narayanan A and Sheldrake AR. 1974. Effect of seed size on growth of seedlings in pigeonpea. In: Annual Report Pigeonpea Physiology, International Crops Research Institute on Semi-Arid Tropics, Patancheru, India. Pp. 39-43.
Narayanan A, Saxena NP and Sheldrake AK. 1981. Varietal differences in seed size and seedling growth of pigeonpea and chickpea. Indian Journal of Agricultural Sciences 51: 289-393.
Olisa BS, Ajayi SA and Akande SR. 2010. Physiological quality of seeds of promising African yam bean (Sphenostylisstenocarpa (Hochst, ExA, Rich) Harms) and pigeonpea (Cajanus cajan (L.) Millsp.) landraces. Research Journal of Seed Science 3: 93-101.
Patel JB and Acharya S. 2011. Genetic divergence and charcter association in Indo-African derivatives of pigeonpea [Cajanus cajan (L.) Millsp.]. Journal of Food Legumes 24: 198-201.
SAS. 2008. SAS/STAT ® 9.2 Users guide, SAS Institute Inc., Cary, NC, USA.
Saxena KB, Chauhan YS, Johansen C and Singh L. 1992. Recent developments in hybrid pigeonpea research. In: Proceedings of Workshop on ‘New Frontiers in Pulses Research and Development’,
-12 November 1989, Kanpur, India. Pp. 58-69.
Saxena KB, Chauhan YS, Laxman Singh, Kumar RV and Johansen C. 1996. Research and development of hybrid pigeonpea. Research Bulletin 19. International Crops Research Institute for the Semi-Arid Tropics, Patancheru 502324, Andhra Pradesh, India. Pp.20.
Saxena KB, Kumar RV, Srivastava N and Shiying B. 2005.A cytoplasmicnuclear male-sterility system derived from a cross between Cajanus cajanifolius and Cajanus cajan. Euphytica 145: 289-294.
Saxena KB. 2009. Evolution of hybrid breeding technology in pigeonpea. In: M Ali and Shiv Kumar (Eds), Milestones in Food Legume Research. Indian Institute of Pulses Research, Kanpur, India. Pp. 82-114.
