利用 IR64’突變庫篩選耐旱水稻之研究

吳永培; Yong-Pei Wu

doi:10.6156/JTAR/2013.06203.01

利用 IR64’突變庫篩選耐旱水稻之研究

Other Title

Drought Tolerant Rice Lines by Screening an IR64’ Mutant Stock

Journal

台灣農業研究

Journal Volume

62

Journal Issue

3

Pages

195-208

Date Issued

2013-09-01

Date

2013-09-01

Author(s)

吳永培

Yong-Pei Wu

DOI

10.6156/JTAR/2013.06203.01

URI

https://scholars.tari.gov.tw/handle/123456789/14013

Abstract

本研究利用經二次疊氮化鈉突變誘發所培育之「IR64」誘變庫為材料，於水稻幼苗期利用28％PEG 6000模擬缺水逆境之水耕液栽培方式，由2500個突變體迅速篩選出152個耐旱突變品系，其後再利用水旱田栽培方式進行突變品系成株期耐旱性之評估，試驗結果顯示有58.7％之突變品系其產量耐旱指數（水田產量／旱田產量百分比）表現較佳，具有耐缺水逆境之潛力；進一步以9個突變品系進行成株期耐旱性的評估，結果發現各突變品系在產量與耐旱等級之表現趨勢一致，並以SM47及SM100兩突變品系的耐旱特性表現最佳。 Breeding new rice varieties with drought tolerance is one of important topics of modern breeding programs. In this study, we screened mutant lines of drought tolerance from a mutant stock of 'IR64' which was a widely cultivated cultivar in the world, and induced by sodium azide twice. A total of 152 mutant lines of drought tolerance out of 2,500 mutants were selected by using PEG 6000 to mimic water deficiency during the seedling stage. Consequently, the mutant lines of drought tolerance were evaluated grain yield harvested from paddy and upland cultivations. The yield indices were used to assess drought tolerance of each mutant line.

Subjects

突變品系

耐旱

水稻

Mutant lines

Drought tolerance

Rice

Publisher

農業試驗所

Type

journal article

File(s)

Name

62-3-195-208.pdf

Size

1.63 MB

Format

Adobe PDF

Checksum

(MD5):1435cc41c76970428c08e0f3a5b19a63