Already three editions 1999, 2004 and 2010...Plant Systematics: an Integrated approach, Science Publishers, USA http://www.scipub.net/botany/plant-systematics-vol3.html
http://www2.lib.ncsu.edu/catalog/record/NCSU2330591 Indian version Plant Systematics: Theory and Practice 1999, 2004, 2012, Oxford & IBH, New Delhi -- Dr. Gurcharan Singh Retired Associate Professor SGTB Khalsa College, University of Delhi, Delhi-110007 Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. Phone: 011-25518297 Mob: 9810359089 http://people.du.ac.in/~singhg45/ On Sun, Nov 6, 2011 at 12:39 AM, ushadi Micromini <[email protected] > wrote: > Gurcharan ji: > Thank you for this nice explanation ... > the TOP onion story is most intriguing... is the bulbil called top onion > or the entire plant's name is Top onion...? > > and which book is this? is it still in print... and available in India? > > Thanks > usha di > ========= > > > > On Sat, Nov 5, 2011 at 10:05 PM, Gurcharan Singh <[email protected]>wrote: > >> Ushadi >> It is common to see short condensed shoots in most plants, especially >> Agave, Furcraea, Yucca, etc. in the place of flowers. These fall down, take >> roots and give rise to new plants. These are known as bulbils. They also >> common in Poa bulbosa. We have another very common onion variety in Kashmir >> (in Europe also) known as palan, Top onion in Europe. It does not produce >> thick bulbs like onion only cylindrical bulbs (like spring onions) are sold >> and consumed in place of onion and garlic. The inflorescence of this >> produces bulbils in place of flowers, and enables this to multiply. Here >> is some interesting information about it from my book >> >> "The technique of silver-staining has been developed to highlight NOR >> (nucleolar organizing region). An interesting study of the chromosomes of >> top onion (variously recognized as Allium cepa var. viviparum or A. >> fistulosum var. proliferum) as also those of A. Cepa and A. fistulosum was >> done by Schubert, Ohle and Hanelt (1983). By Giemsa banding pattern and >> silver-staining studies, they concluded that some chromosomes of top onion >> resemble A. cepa and others resemble A. fistulosum. Of the two satellites, >> one resembles either species. Top onion is as such a pseudodiploid with no >> homologous pair. The study confirmed that top onion is a hybrid between the >> two aforesaid parents, and thus would be better known as A. x proliferum >> (Moench) Schrad. (based on Cepa proliferum Moench), and not as a variety of >> either species. Interestingly, the top onion owes its existence to the >> bulbils, which are produced in place of an inflorescence and ensure the >> multiplication of the hybrid, which is otherwise sterile" >> >> >> -- >> Dr. Gurcharan Singh >> Retired Associate Professor >> SGTB Khalsa College, University of Delhi, Delhi-110007 >> Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. >> Phone: 011-25518297 Mob: 9810359089 >> http://people.du.ac.in/~singhg45/ >> >> On Sat, Nov 5, 2011 at 9:24 PM, Smita Raskar <[email protected]>wrote: >> >>> Incredible pictures :) >>> >>> >>> On Sat, Nov 5, 2011 at 8:22 PM, Ushadi micromini < >>> [email protected]> wrote: >>> >>>> Gurucharanji... >>>> please explain to me because I just do not know : in this last picture >>>> above why is it a bulbil (the brown things) and not seedpod? >>>> >>>> I am a bit confused about this... >>>> >>>> I am familiar with the small black bulbils that form in some tiger >>>> lillies..etc... >>>> but these look like fruits to my eyes... >>>> >>>> or may be I am not looking at the right object... >>>> thanks >>>> Usha di >>>> ============ >>>> >>>> >>>> >>>> >>>> >>>> On Nov 5, 1:56 pm, shivaprakash adavanne <[email protected]> wrote: >>>> > hello, >>>> > please few photos of Furcraea foetida in flower and with bulbil. >>>> > Flowers photos was taken at Konanur, Nanajagudu taluk, Mysore >>>> > district(23.10.2011) and plant with bulbil in Bettada beedu, Mysore >>>> taluk >>>> > and district on 05.11.2011. >>>> > >>>> > regards >>>> > a.shivaprakash >>>> > >>>> > Furcraea foetida (1).JPG >>>> > 312KViewDownload >>>> > >>>> > Furcraea foetida (3).JPG >>>> > 309KViewDownload >>>> > >>>> > Furcraea foetida (5).JPG >>>> > 344KViewDownload >>>> > >>>> > Furcraea foetida.JPG >>>> > 265KViewDownload >>> >>> >>> >>> >>> -- >>> Smita raskar >>> 308 Disha Residency, >>> Salaiwada,Sawantwadi >>> Mob.09422379568 / 09763989639 >>> >>> >> >> >> >
