Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Registro completo
Provedor de dados:  Taiwan Agricultural Research Institute
País:  Taiwan
Título:  水稻世代促進法之研究
STUDIES ON THE TECHNIQUES OF SHORTENING THE GROWING PERIOD OF RICE
Autores:  楊遜謙
S.C. Yang
Data:  1969-06
Ano:  1969
Palavras-chave:  [[classification]]14
Resumo:  [[abstract]](1) 本試驗為應用世代促進方法縮短水稻之生長日數,使原來育種法之年二世代增至三世代以縮短育種年限,加速新品種之育成為目的。 (2) 試驗方法分為室外直播法及溫室內短日處理及不處理即(自然日長區)等三處理,採用30×60×5cm之播種盤,經二次播種第一次播種室外直播與溫室內短日處理及自然日長區等均獲如期之結果,第二次播種因冬季寒冷室外直播區生長缺佳,在預定時期內不抽穗之外,室內者亦有二品種不抽穗,但其他各品種(系)均能如期抽穗。 (3) 以品種而言,早熟品種及早熟品種什交後代品系中晚熟品種縮短效果大,如以中晚熟品種臺中65號為例,其在第一次播種生長日數為106天,第二次播種129天,第三次播種估計110天,合計345天,年得三世代尚屬可能,而早熟品種即更易達到。 (4) 各處理間(室外直播與溫室內短日處理及自然日長區)僅以中晚熟品種在室外直播區者出穗稍遲外,其餘品種在各處理間生育日數之差異並不大。 (5) 抑制生長提早抽穗是本試驗之目的,株高、穗數、每穗粒數、葉數等受到抑制,因此均較一般普通栽培者為少。 (6) 本省中晚熟水稻品種,其感光性均不敏感,屬基本營養生長型,短日處理區與溫室內盤播自然日長區抑制栽培者,生育日數並無多大差異。 1. This experiment was designed to explore the possiblity of growing three generations of rice a year instead of ordinary two generations a year in order to shorten years needed in developing a new rice vairety. 2. The experiment had three treatments, i.e. (1) direct seeding in the nursery bed, (2) sowing in the shallowflat of 30×60×5cm in size grown inside the greenhouse with and (3) without short day treatment. Normal heading for all test varieties were obtained in all treatments except for the winter planting of the (1) treatment. 3. It was found that the growing period of the early maturing varieties was more easily shortened than that of the late maturing varieties. Taichung 65, for example, had the growing period of 106 days in the first planting, 129 days in the second one, and 110 days expected for the third one indicating that it is possible to harvest three crops of Taichung 65 within 345 days. 4. Varietal differences among treatments in growing period were not great except of the treatment 1 where late maturing varieties showed delayed heading. 5. All treatments showed decreased performance in agronomical traits indicating that the amount of growth was not sufficient. 6. No significant difference in growing period of rice varieties was observed between short day and normal day length treatment indicating that ponlai (Japonica) varieties were not responsive to short day treatment.
Idioma:  zh_tw
Identificador:  [[uri]]http://210.69.150.18:8080//handle/345210000/2668
Relação:  農業研究 18(2): 10-25
Agricultural Research 18(2): 10-25
Formato:  [[extent]]1425921 bytes

[[mimetype]]application/pdf
Fechar
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional