Assessment and exploitation of genetic divergence in pecan nut

Published

2022-09-30

Keywords:

Carya illinoensis (Wang) K. Koch., correlations, genetic divergence, heritability
Dimensions Badge

Authors

  • Sohnika Rani Division of Fruit Science S. K. University of Agricultural Sciences & Technology of Jammu, Chatha-180009, (UT of J&K), India
  • Arti Sharma Division of Fruit Science, S. K. University of Agricultural Sciences & Technology of Jammu, Chatha-180009, (UT of J&K), India
  • Kiran Kour Division of Fruit Science S. K. University of Agricultural Sciences & Technology of Jammu, Chatha-180009, (UT of J&K), India
  • Manish Sharma

Abstract

Sixty genotypes of pecan nut having unknown seedling origin were selected after thorough survey to assess the nature and magnitude of genetic divergence. Genetic divergence was analyzed in these 60 bearing trees of pecan nut growing at various geographical locations in Jammu Division of UT of Jammu and Kashmir. The data were subjected to non- hierarchical Euclidean cluster analysis based on seven nut and kernel characters viz nut length, lateral nut width, ventral nut width, shell thickness, kernel weight, kernel length and nut weight High heritability coupled with higher genetic advance was observed for kernel length (94.80% and 46.61 %).Further kernel weight showed positive and significant correlation with nut length and nut weight. Clustering of selected genotypes was done by using D2 statistics and dendrogram was made as per Ward’s method. All the 60 seedling pecan nut genotypes were grouped into 8 clusters. The maximum inter cluster distance was recorded between selections of cluster VII and V. Cluster VII was the most diverse as more clusters showed maximum inert cluster distance with it. Considering high magnitude of genetic advance and heritability (broad sense) in various traits of horticultural interest, the existing biodiversity was gainfully exploited by direct selection and three genetically diverse genotypes were selected and compared with three commercial cultivars and out of these five genotypes one was selected for commercial cultivation based on yield and nut characters. The selected genotype has been released as variety for cultivation in North West Himalayan region and the same has been notified by Central Variety Release committee and released under name SKJPP 25 /Jammu pecan nut.

How to Cite

Rani, S., Sharma, A., Kour, K., & Sharma, M. (2022). Assessment and exploitation of genetic divergence in pecan nut. Indian Journal of Horticulture, 79(3), 266–272. Retrieved from https://journal.iahs.org.in/index.php/ijh/article/view/463

Downloads

Download data is not yet available.

References

Andersen, P. C. and Crocker, T. E. 2012. The Pecan Tree. EDIS Publication HS982, 17 pp. Department of Horticultural Sciences, Institute of Food and

Agricultural Sciences, University of Florida, Gainesville, FL.

Anonymous. 2022. Statement of J&K, Department of Horticulture, Jammu.

Falconer, D. S. 1960. Introduction to Quantitative Genetics. Oliver and Boyd London. pp. 304.

Kaushal, R. and Sharma, S. D. 2001. Variationfor metric tree, foliage and floral characters in seedling trees of pecan (Carya illinoensis)in Himachal

Pradesh. Indian J. Agric. Sci. 71:551-52.

Mahalanobis, P. C. 1936. On the Generalized Distance in Statistics. Proc. Nat. Inst. Sci. India. 2: 49-55.

Ramanujam, S., Tiwary, A. S. and Mehra, R. B. 1974. Genetic divergence and hybrid performance in mungbean. Theor. Appl. Genet. 44: 211-14.

Rana, J. C., Singh, D., Yadav, S. K., Verma, M. K., Kumar, K. and Predheep, K. 2007. Genetic diversity collected and observed inPersian walnut (Juglas

regia L.) in the western Himalayan region of India. Plant Genet. Resour. News Letter. 151:68-73.

Rani, S., Sharma, A., Wali, V. K., Kour, K., Sharma, M. and Gupta, R. 2018. Diversity for Tree Growing habit in the natural population of pecan nut

(Carya illinoensis K.) in Jammu Province, India. Int. J. Curr. Microbiol. App. Sci. 7: 2760-67.

Rani, S., Sharma, A., Wali, V. K., Kour, K., Sharma, M. and Sharma, M. 2017. Evaluation of genetic diversity of pecan nut [Carya illinoensis (Wang) K.

Koch.] in Jammu region. Indian J. Hortic. 74: 601-603.

Ravindran, C., Sharma, M. and Kher, R.2006. Present status and problems of pecan nut (Carya illinoinensis (Wang.) K. Koch) cultivation in Jammu

and Kashmir. Acta Hortic. 772: 179-82.

Shah, S., Sharma, G. and Sharma, N. 2010. Heritability, genetic variability correlation and non-hierarchial Euclidean cluster analysis of different

almond (Prunus dulcis) genotypes. Indian J. Agric. Sci. 80: 576-83.

Singh, D., Kaler, R. K., Kumar, K. and Sharma, N. 2012. Genetic diversity and character association in different seedling pecan (Carya illinoensis).

Indian J. Agric. Sci. 82: 911-15.

Singh, D., Kumar, K. and Singh, M. 2010. Agronomic performance and character association studies in seedling trees of pecannut [Carya illinoensis

(Wang) K. Koch.). Adv. Hortic. Sci. 24: 133-36.

Singh, D., Kumar, K., Sharma, S. D. and Sharma, V. K. 2011. Selection of indigenous pecan [Carya illinoensis (Wang.) K. Koch.] trees for better nut

and kernel quality characters. J. Hill Agric. 2: 85-89.

Thakur, B. S., Sharma, O. C., Mehta, K., Sharma, D. P. and Rehalia, A. S. 2005. Genetic divergence in almond (Prunus amygdalus Batsch) growing in

Kinnaur, Himachal Pradesh. Acta Hortic. 696: 69-74.

Similar Articles

<< < 5 6 7 8 9 10 11 12 13 14 > >> 

You may also start an advanced similarity search for this article.

Most read articles by the same author(s)