Physical and biochemical changes in guava ( Psidium Guajava L. ) during various stages of fruit growth and development

Results and Discussion

upto 120 days and thereafter the rate of increase

was quite slow (Figure 1). Similar finding was also

Fruit weight

reported by Dhillon et al. , (1987) they found that fruit

A significant variation in fruit weight of guava was

weight in Allahabad Safeda and Sardar increased

observed among the genotypes at various stages

upto 130 and 120 days, respectively, in the rainy

of fruit development. The data presented in Figure

season and upto 140 and 130 days, respectively in

1showed an increasing trend in fruit weight from

the winter season. The slow growth during 60 to 90

initial stage of fruit growth till maturity and ripening

DAFS might be due to rapid development of seed

(127 days) in all the genotypes. The increases in fruit

resulting in slow growth of the pulp. The increase in

weight was rapid between 30 to 60 DAFS and 90 to

fruit weight could be attributed to an increase in the

127 DAFS whereas, the rate increase in weight was

size of the cells and accumulation of food substances

little bit slow between 60 to 90 DAFS in most of the

in the intercellular spaces in fruit (Bollard, 1970. The

genotypes. However, RCG-1, RCG-2 and RCG-3

findings is analogous to this observation were also

showed the continued rapid increase in fruit weight

reported by Dhillon et al. , (1987), Mercado-Silva et al. ,

(1998) and Singh and Jain (2007).

Figure 1 Fruit growth pattern (weight) of guava genotypes

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