CORRELATION STUDIES AMONG VEGETATIVE, FRUIT PHYSICO-CHEMICAL CHARACTERS OF GUAVA (Psidium guajava L.)

B. SHIVA¹*, A. NAGARAJA², M. SRIVASTAV³, A.K. GOSWAMI^4
1ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
²ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
³ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
⁴ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
* Corresponding Author : banothshivaiari@gmail.com

Received : 08-02-2017     Accepted : 15-05-2017     Published : 06-06-2017
Volume : 9     Issue : 26       Pages : 4322 - 4324
Int J Agr Sci 9.26 (2017):4322-4324

Keywords : Guava, Correlation analysis, Vegetative growth, Physicochemical
Academic Editor : Prashant Kisanrao Nimbolkar
Conflict of Interest : None declared
Acknowledgements/Funding : I express my gratefulness to Dr. Sanjay Singh, Principal Scientist and Head, Division of Fruits and Horticultural Technology, New Delhi, for providing me support and technical guidance in all course of my biochemical work in his laboratory. I wish to record my sincere innate respect, appreciation and gratitude to my chairmen Dr A. Nagaraja, Dr Manish Srivastav and Dr A. K. Goswami for their valuable suggestions, active cooperation and affectionate encouragement
Author Contribution : All author equally contributed

The present study was conducted to determine correlation among vegetative growth, fruit physico–chemical parameters of 22 genotypes of Psidium guajava and two species, P. friedrichsthalianum and P. pumilum. The coefficient of correlation was estimated for nineteen morphological characters, which included Plant height, canopy volume, leaf, fruit parameters (Trunk diameter, Plant spread, No. of. flowers, Flowering duration, Petiole length, Internodal length, Leaf shape, Shape of leaf apex, Shape of leaf base, Leaf length, Leaf width, Leaf area, Leaf lamina pubescence, Young leaf anthocyanin, Coloration, Intensity of anthocyanin coloration in young leaf, Fruit weight, Fruit length, Fruit width, Fruit index, Fruiting habit, Shape of fruit Colour of pulp, Colour of fruit skin) and eight fruit biochemical characters. Correlation studies among different horticultural traits indicated that plant height was highly correlated with the plant spread as well as canopy volume. Leaf length and breadth was highly correlated with leaf area, whereas they were negatively correlated with stomata number. Fruit weight was highly correlated with fruit core diameter and seed number. Plant height showed significant positive correlation with plant spread (N-S and E-W) 0.970 and 0.957 as well as canopy volume (0.985). The petiole length was highly correlated with leaf area (0.64) and negatively correlated with a number of stomata (-0.529). Fruit weight had a highly significant positive correlation with relation to fruit length (0.896), fruit width (0.941), and fruit core diameter (0.759), the number of seeds per fruit (0.571) and also with seed weight. Total chlorophyll had a positive correlation with vitamin-C content (0.443).

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