VARIABILITY IN GROWTH CHARACTERS OF CARRIZO CUTTINGS AT DIFFERENT STAGES OF DEVELOPMENT

TANJEET CHAHAL SINGH¹*, G.S. SIDHU², H.S. RATTANPAL^3
1PAU, Fruit Research Station, Jallowal-Lesriwal, Jalandhar
²PAU, School of Agricultural Biotechnology, Ludhiana
³PAU, Department of Fruit Science, Ludhiana
* Corresponding Author : tanjeetchahal@yahoo.com

Received : 16-08-2015     Accepted : 09-09-2015     Published : 21-11-2015
Volume : 7     Issue : 10       Pages : 724 - 726
Int J Agr Sci 7.10 (2015):724-726

Keywords : Citrus, Carrizo citrange, Stem cuttings, Shoot and root
Academic Editor : Rymbai H., Abdel Raheem M. A., Herrero B., Kashyap Anurag, Dr Rajmohan Sharma, Dr. N. A. Deshmukh, Kant Kamal, Prakash Jai
Conflict of Interest : None declared
Acknowledgements/Funding : None declared

An experiment on variability in vegetative and rooting parameters of Carrizo citrange cuttings was conducted at Punjab Agricultural University (Fruit Research Station - Jallowal) at four different stages of growth; stage I–90 DAP (Days After Planting), stage II–180 DAP, stage III–270 DAP and stage IV–360 DAP. A regular significant increase in length of longest main shoot was recorded with advancement of each stage of growth and it achieved the maximum value of 81.11 cm during stage IV. Maximum shoot diameter to the tune of 1.12 cm was registered during stage IV and was significantly higher than all other stages. Leave number per cutting also showed significant increase with advancement of each development stage. Maximum number of sub-shoots to the value of 10.78 was observed during stage IV. The data regarding length of longest sub-shoot failed to exhibit any significant effect on this parameter with maturity advancement from stage II to stage III and stage III to stage IV. Length of longest root was significantly affected by advancement in each stage of development, while number of primary roots exhibited non-significant variation between stage I & stage II and stage II & stage III. Maximum value to the tune of 3.89 g and 2.68 g for fresh weight and dry weight of roots respectively, was recorded during stage IV.