Chromosome numbers in. Begonia. 2.

The somatic chromosome numbers are presented of 90 Begonia spp. of African, Asian and American origin, including a few of those previously listed [see H.A., 40: 1600] whose nomenclature or chromosome numbers are reconsidered. Sixteen different numbers were found, ranging between 16 and 76. The most common were 28 (26 species), 38 (10 species) and 56 (15 species). [For related work see H.A., 41: 7120.]. (Abstract retrieved from CAB Abstracts by CABI’s permission

Chromosome numbers in Begonia.

The somatic chromosome numbers of 100 Begonia species were counted, of which 72 have been determined for the first time. Eighteen different numbers have been established, ranging between 22 and 156, fifteen of which could be fitted into a tentative scheme of five polyploid series. The most common numbers were 22 (14 species), 28 (35 species) and 56 (17 species). The species have been grouped into sections according to Irmscher. In some cases these sections appeared to have a characteristic chromosome number whereas in others, e.g. Pritzelia and Begoniastrum, a great diversity in chromosome number was encountered. [For earlier work see H.A., 39: 5182.]-Univ. Wageningen. (Abstract retrieved from CAB Abstracts by CABI’s permission

Chromosome numbers in Begonia.3.

The somatic chromosome numbers are presented of 34 spp. of African, Asiatic and American origin. Many spp. had not previously been investigated cytologically. [For part 2 see HcA 42, 1737.]. (Abstract retrieved from CAB Abstracts by CABI’s permission

Progress in Using Biotechnology By-Products as Fertilizer

Byproducts from fermentation industries using modem, biotechnological fermentation processes are produced in large volumes, up to several thousand tons per year. The byproducts consist of the biomass from the microorganisms that reproduced in fermentation, the raw products contained in the fermentation solution, and both major and minor products of fermentation. In addition, the byproducts may contain chemicals added to assist in the recovery of the product especially where ion exchange resins have been used. Annual energy consumption by the microorganisms carrying out the fermentation processes in Iowa industries amounts to over five million bushels of com that has been refined into sugar

Land Applying Biotechnology Byproducts in 1996

Byproducts from modern, biotechnological fermentation processes are produced in large volume, up to, and exceeding several thousand tons per year at each industrial site. The byproducts may consist of the biomass from the microorganisms used in the fermentation, raw inputs contained in the fermentation broth, and major and minor products of fermentation. The primary source of energy for the microorganisms is corn, perhaps ten million bushels per year is converted to sugar for these industries. The byproducts may contain chemicals added to assist in the recovery of products, especially where ion exchange resins are used for this purpose. In addition, certain byproducts result from necessary ancillary processes such as peptide production by acidulation of soybean oilmeal and finally, treatment of process waste water

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