Pollen Morphology and Behaviour in Pummelo Flower

Abstract

Abstract

Pollen morphology and behaviour of flower in pummelo accessions CG-1, CG-18 and CG-151 were studied at the pummelo orchard of Regional Agricultural Research Station, BARI, Akbarpur, Moulvibazar and the laboratory of Bangabandhu Sheikh Mujibur Rahman Agricultural University. It was observed that pollen diameter varied from 35 to 40 micro-meters, shape of pollen was round in all accessions and percentage of viable pollen was in between 85-99. Stigma became receptive approximately 36 h before anthesis and continued up to 5 days after anthesis. Emasculation of pummelo flowers should be done within 26 days from flower bud initiation. Highest amount of pollens were germinated in-vitro when collected at anthesis and germination (%) was gradually reduced up to 4  h and drastically reduced after 6  h. Abundant pollen tube was found on the stigma as well as in the style when pollination was done from before 12  h to after 24  h of anthesis. In the accessions, fruit and seed setting were observed when open and cross pollination were done but no fruit set observed when selfing was done.

 Key words: Pummelo, floral biology, pollen

Cite this Article

Md. Azizul Hoque. Pollen Morphology and Behaviour in Pummelo Flower. Research & Reviews: Journal of Crop science and Technology.2015; 4(2):    12–20p.