National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Being early ripening, low chill plums grown in Indian sub-tropics have the potential for production of quality fruits and plum growing in the plains can be made successful venture by evolving improved varieties. Bearing habit, flower bud development and flower morphology, time and duration of flowering, anthesis, dehiscence, pollen studies (pollen viability and germinabitily) were studied in six varieties. Alu Bokhara Amritsari produced flowers on spurs. Flower bud passed through seven despotic stages and took 23.5 to 29.5 days to complete all the stages of flower bud development. Kala Noki commenced the flowering earliest (3rd February). The longest period of flowering (29 days) was recorded in Alu Bokhara Amritsari. Maximum anthesis (30.9- 42.0 to 28.8- 46.0 per cent) in all cultivars was recorded between 12 noon to 2 p. m. and dehiscence (7.7 – 31.0 to 5.7 – 30.9 per cent) in all cultivars with a peak period between 10 a.m. to 2 p.m. Stigma became receptive one day before anthesis (32 to 28 fruitset) in all the cultivars. Pollen viability was found maximum in Satluj Purple (94.7%) and sucrose solution of 20 per cent proved most efficacious with regard to pollen germination in all the six cultivars under study. The study undertaken will be useful for taking up plum improvement in subtropics.
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