Floral biology of purple, yellow, giant and Passiflora foetida was studied at the ICAR
Research Complex, Mizoram Centre, Kolasib, Mizoram, India during 2005-07. Purple, giant and P.
foetida had major bloom during March-April, July-August and September-October. While major
bloom in yellow was mainly during May-June and September-October. Purple, giant and P. foetida
had the maximum duration of bloom of 42.4, 22.5 and 32.6 days, respectively during March-April
with the maximum duration of effective bloom of 12.5 8.6 and 10.4 days in purple, giant and P.
foetida, respectively. Yellow had the maximum duration of bloom for 28.4 days and effective
bloom of 10.5 days during May-June. Most of the flowers of purple (54.5%) and giant (58.5%)
opened between 6-7 hrs, while the maximum per cent of anthesis in yellow (70%) took place
between 12-13 hrs. Pollen dehiscence and pollination in purple and giant mainly occurred between
7-8 hrs, while 13-14 hrs was the major period of pollen dehiscence and pollination in yellow. The
earliest anthesis (5-6 hrs), anther dehiscence (6-7 hrs) and pollination (6-7 hrs) were recorded in P.
foetida. The maximum stigma receptivity was recorded on the day of anthesis in all the passion
fruits. Completely curved style was more common in all passion fruits that gave the maximum
fruit set. The maximum number of bees observed between 7-8 hrs in purple and giant and between
13-14 hrs in yellow. The most common pollinating bee in purple, giant and yellow was Apis
mellifera, while A. cerena was in P. foetida
Floral biology of purple, yellow, giant and Passiflora foetida was studied at the ICARResearch Complex, Mizoram Centre, Kolasib, Mizoram, India during 2005-07. Purple, giant and P.foetida had major bloom during March-April, July-August and September-October. While majorbloom in yellow was mainly during May-June and September-October. Purple, giant and P. foetidahad the maximum duration of bloom of 42.4, 22.5 and 32.6 days, respectively during March-Aprilwith the maximum duration of effective bloom of 12.5 8.6 and 10.4 days in purple, giant and P.foetida, respectively. Yellow had the maximum duration of bloom for 28.4 days and effectivebloom of 10.5 days during May-June. Most of the flowers of purple (54.5%) and giant (58.5%)opened between 6-7 hrs, while the maximum per cent of anthesis in yellow (70%) took placebetween 12-13 hrs. Pollen dehiscence and pollination in purple and giant mainly occurred between7-8 hrs, while 13-14 hrs was the major period of pollen dehiscence and pollination in yellow. Theearliest anthesis (5-6 hrs), anther dehiscence (6-7 hrs) and pollination (6-7 hrs) were recorded in P.foetida. The maximum stigma receptivity was recorded on the day of anthesis in all the passionfruits. Completely curved style was more common in all passion fruits that gave the maximumfruit set. The maximum number of bees observed between 7-8 hrs in purple and giant and between13-14 hrs in yellow. The most common pollinating bee in purple, giant and yellow was Apismellifera, while A. cerena was in P. foetida
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