STUDIES ON FLORAL BIOLOGY AND FRUIT SET IN DIFFERENT VARIETIES OF SAPOTA (Manilkara zapota L.) 3747
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Date
2023-08
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JAU JUNAGADH
Abstract
The present investigation entitled “Studies on floral biology and fruit set in different
varieties of sapota (Manilkara zapota L.)” was conducted during the year 2022 at Fruit
Research Station, Jambuvadi, College of Horticulture, Junagadh Agricultural University,
Junagadh (Gujarat). The experiment was laid out in a Randomized Block Design with eight
different treatments and three replications. The treatments comprised of different varieties
viz., Zumakhiya (V1), Kalipatti (V2), Pilipatti (V3), Culcutti special (V4), Mohongootee (V5),
Bhuripatti (V6), Murabba (V7) and Cricket ball (V8).
The result of the study regarding the floral biology and fruit set revealed that flower
bud of sapota passes through distinct stages until development and takes 27 to 37 days for
complete development. The optimum time for anthesis was found from 4:00 to 5:00 a.m., for
dehiscence was from 8:00 to 9:00 a.m. and for stigma receptivity was from 8:00 to 9:00 a.m.
Intensity of stigma receptivity was more on one day before anthesis. The total duration of
anther dehiscence was about 10-13 hours. Minimum days to flower bud development,
minimum days to anthesis and maximum duration of dehiscence were found in variety
Bhuripatti while maximum pollen germination, pollen viability, fruit set, fruit yield and
minimum fruit drop were observed in variety Kalipatti.
After the study of floral biology and fruit set in different varieties of sapota, it can be
concluded that variety Bhuripatti was observed to be having better floral biological
parameters and variety Kalipatti gave the better result in fruit set and yield parameters
compared to other varieties