Volume 2, Issue 1
July 1935, pages 1-135
pp 1-20 July 1935
pp 21-28 July 1935
pp 29-32 July 1935
pp 33-48 July 1935
pp 49-58 July 1935
pp 59-66 July 1935
The microspore tetrads are arranged in isobilateral, linear or decussate manner. The tapetum forms a periplasmodium. The pollen grain has a conspicuous generative cell and a degenerating tube nucleus. The degeneration of some of the pollen grains is also observed. The endothecium is not well developed.
In the nucellus there is usually a single archesporial cell which directly functions as the megaspore mother cell. Occasionally, a multicellular archesporium is noticed.
The embryo sac is normal in which the antipodals are organised into cells.
The embryo is of theSagittaria-type.
The primary endosperm nucleus divides accompanied by a wall formation. The upper chamber lodges the embryo and the lower one along with the persisting antipodals assumes a haustorial rôle. The endosperm tissue is feebly developed.
pp 67-73 July 1935
pp 74-79 July 1935
There are four seed coat colours inDolichos lablab, namely, Black, Chocolate, Khaki and Buff. Khaki is the basic colour for the other two colours Chocolate and Black. In Buff, the body of the seed coat is coloured Buff, but the micropylar zone remains white. In the first three colours, the colour may be either on the whole of the seed coat or confined to the micropylar and caruncular zone.
A factor K has the effect of producing the Khaki colour and colouring the micropylar zone. A factor Bf has the effect of producing the Buff colour and colouring the whole of the seed coat except the micropylar zone. It is found that K bf and k Bf are absolutely linked.
pp 80-87 July 1935
pp 88-94 July 1935
pp 95-107 July 1935
pp 108-135 July 1935