Improving the efficiency of hybrid combination preparation in rice breeding by a modified flowering stimulant

Improving the efficiency of hybrid combination preparation in rice breeding by a modified flowering stimulant
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改良开花刺激剂提高水稻育种杂交组合制备效率

DOI:
10.25165/j.ijabe.20201303.5632
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发表时间:
2020-06
影响因子:
2.4
通讯作者:
Tu Bin
Tu Bin
中科院分区:
农林科学3区
文献类型:
--
作者:
Zheng Ling;Zhang Shangxing;Xue Fengyin;Yun Yifan;Liu Pin;Yuan Hua;Chen Weilan;Qin Peng;Wang Yuping;Ma Bingtian;Li Shigui;Chen Yong;Tu Bin

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杂种优势的利用是水稻育种史上的重大突破。为了选择最佳的杂交组合,育种者手动进行恢复系和不育系之间的杂交的广泛测试,这是一个费力且耗时的过程。本文报道了一种含有茉莉酸甲酯(MeJA)、6-苄胺腺嘌呤和激动素的改良开花刺激剂,能有效促进水稻雄性不育系的开花和结实。测试不同浓度的成分以确定最佳配方。种子质量评价结果表明,喷施促花剂的杂交种子发芽率高于剪颖法。总之,本研究中描述的改良开花刺激剂可能有助于减少与杂交水稻育种相关的劳动力需求,并提高产量和效率。 关键词:杂交水稻,杂交,促花剂,茉莉酸甲酯,激动素 DOI:10.25165/j.ijabe.20201303.5632 引文:郑玲,张世新,薛凤艳,云燕凤,刘萍,袁红,等。改良开花刺激剂提高水稻杂交组合配制效率的研究。Int J Agric & Biol Eng,2020; 13(3):36-40.
The utilization of hybrid vigor is an important breakthrough in the history of rice breeding. To select the best hybrid combinations, breeders manually perform extensive testing of hybridizations between restorer and sterile lines, which is a laborious and time-consuming process. Here, we report that a modified flowering stimulant containing methyl jasmonate (MeJA), 6-benzylamine adenine and kinetin effectively promotes the flowering and seed set of male-sterile rice lines. Different concentrations of the ingredients were tested to identify an optimal formulation. Seed quality evaluation indicated that hybrid seeds from plants sprayed with the flowering stimulant had a higher germination rate than seeds from plants prepared by glume-cutting. In summary, the modified flowering stimulant described in this study may help reduce the labor requirement associated with hybrid rice breeding and improve yield and efficiency. Keywords: hybrid rice, cross, flowering stimulant, methyl jasmonate, kinetin DOI: 10.25165/j.ijabe.20201303.5632 Citation: Zheng L, Zhang S X, Xue F Y, Yun Y F, Liu P, Yuan H, et al. Improving the efficiency of hybrid combination preparation in rice breeding by a modified flowering stimulant. Int J Agric & Biol Eng, 2020; 13(3): 36–40.
杂种大米可行的男性不育系统:遗传学,生物化学,分子生物学和利用率。
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