Tag: Male sterility

Segregation disortion of anthocyanin morphological marker in F2 population of cross between basmati and environment genic male sterile rice lines – IJAAR

Njiruh Paul Nthakanio, Kanya James Ireri, Kimani John Munji,Wanjogu Rapheal Kinyanjui, Kariuki Simon Njau

Embu University College, Department of Agricultural Resource Management. Po Box 6, Embu, Kenya

University of Nairobi, School of Biological sciences, P.O. Box 30197, Nairobi, Kenya

Kenya Agricultural research, Institute (KARI), P. O. Box 298, Kerugoya, 10300; Tel:+254- 202028217, or Box 402-10303 Wang’uru, Kenya

Mwea Irrigation Agriculture Development (MIAD) Centre. Unyunyuzin House, Lenana Road Nairobi, Kenya

Kariuki Simon Njau. Kenyatta University, Department of Biochemistry and Biotechnology. Po Box 43844- 00100, Nairobi, Kenya

Key words: Anthocyanin, basmati, hybrid rice, male sterility, segregation distortion.

Abstract

Basmati rice (Oryza sativa L.) is preferred by many Kenyans yet its yield per hectare is low. This challenge led to initiation of Basmati hybrid rice project in Kenya with a goal of leaping yield benefits of heterosis. Since quality traits in Basmati are under recessive gene control, then the two parents in hybrid programme must possess the traits to avoid their masking at F1 by any other dominant gene. Continue reading Segregation disortion of anthocyanin morphological marker in F2 population of cross between basmati and environment genic male sterile rice lines – IJAAR

Qualities of monogerm male-sterile sugar beet lines

Georgi Kikindonov

Plant Breeding Department, Agricultural Institute, Shumen, Bulgaria

Key words: Sugar beet, Male sterility, Monogerm, Productivity.

Abstract

shutterstock_79736593The majority of the commercial varieties of sugar beet in Europe are hybrids, based on monogerm diploid malesterile females and multigerm diploid and tetraploid pollinators. The aim of the present study is by testing the basic biological qualities of recently created male-sterile sugar beet lines (male sterility, monogermity, seeds germination), and the combination of productivity and technological qualities, to make an assessment of their breeding value. The diploid lines have high male sterility, combined with high laboratory seeds germination and practically full monogermity. The tetraploid lines show significantly lower levels of male sterility and germination. The diploid monogerm lines MS 0819, MS 0922 and MS 0926 combine good biological characteristics with high own productivity and technological indices. The tetraploid lines tested have better technological qualities, and the best combination of good biological and economic qualities is manifested by MS 142. The high heterosis effect levels registered for the white sugar yield from the triploid hybrids of the tested lines with multigerm pollinators are indication for the very good combining ability of the monogerm lines and a proof for their high breeding value.

Source:

* Main File: http://www.innspub.net/ijaar/qualities-of-monogerm-male-sterile-sugar-beet-lines/