Data/hora: 19/06/2024 21:28:11

Biblioteca(s): | Embrapa Semiárido; Embrapa Tabuleiros Costeiros.
Data corrente: | 28/08/1995
Data da última atualização: | 28/08/1995
Autoria: | ANDREWS, D. J.; HARINARAYANA, G.
Título: | Procedures for the seed production of pearl millet varieties.
Ano de publicação: | 1984
Fonte/Imprenta: | Andhra Pradesh: ICRISAT, 1984.
Páginas: | 06p.
Série: | (ICRISAT. Information Bulletin, 16).

Idioma:

Inglês
Português

Conteúdo: | This is a guide to the technique required to produce pure and vigorous seed from varieties of this cross-pollinated crop. Multiplication rates, through sequential breeder, foundation, and certified seed stages, are high: 3 kg of seed are adequate for sowing 1 ha, subsequently producing 1 tonne of clean see. Nucleus seed plots (stage O), sown for regeneration once every 4 years, should be effectively isolated. They should be between 0.1 and 0.2 ha in size, and contain at least 3000 plants. Plots of breeder seed (Stage 1) should similarly be well isolated, and rigorously inspected and rogued, and not more than 1% of off-types should be permitted at final inspection. Plot sizes are normally between 0.1 and 0.5 ha, according to how much certified seed is required, using a conservative multiplication factor of x200. At the end of the foundation seed stage (stage 2), through protective perimeter planting, inspection, and roqueing, off-types should be less than 2%. At the final certified seed stage (3), the permitted level of off-types is 5%. Six points of guidance are given for extension staff to pass on to farmers who (as may be expected) attampt to multiply their own improved seed.
Palavras-Chave: | Pearl millet; Production; Seed; Sementes.
Thesagro: | Melhoramento; Milheto; Pennisetum Americanum; Produção; Semente; Variedade.
Thesaurus Nal: | varieties.

Categoria do assunto:

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A Sistemas de Cultivo

Registro original: | Embrapa Tabuleiros Costeiros (CPATC)

Exemplares:

CPATC - (4745-1) - ADD - FL - -- -  -  - FOL02008 - DIS
CPATSA - (51116-1) - ADD - FL - PP - 07188 -  - 07188 - DIS