Variation in Leaf Biochemical Compositon of Guava (Psidium guajava L) Hybrids

Interplay of several internal development cues leads to floral induction in perennials like guava, mango and litchi. The transition of plants from the vegetative to the reproductive phase depends on the biochemical composition of the leaves. In view of this, the present study was conducted to know the variation in biochemical composition in non-flowering and flowering guava plants. Seven guava hybrids H1 (ARP selection x Lalit), H2 (Lalit x ARP selection), H3 (Allahabad Safeda x ARP selection), H4 (Lalit x Allahabad Safeda), H5 (Allahabad Safeda x Lalit), H6 (Nagpur Seedless x Allahabad Safeda) and OP (Open pollinated progeny of Allahabad Safeda).) were used for estimation of biochemical constituents in blooming and non-blooming plants. Results revealed that higher levels of total sugars, protein, and carbohydrates were observed in the leaves of non-blooming plants compared to blooming plants. However, compared to non-flowered plants, flowering plants had leaves with a higher amount of total phenol.