Partial resistance to blast on common and synthetic wheat genotypes in seedling and in adult plant growth stages
Partial resistance to blast on common and synthetic wheat genotypes in seedling and in adult plant growth stages
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DOI：
10.1590/s1982-56762010000100004
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发表时间：
2010-02-01
影响因子：
2.5
通讯作者：
Scheeren, Pedro L.
中科院分区：
文献类型：
--
作者：
Cruz, Maria Fernanda A.;Prestes, Ariano M.;Scheeren, Pedro L.
1985年，巴西巴拉那州首次报道了由稻瘟病菌引起的小麦稻瘟病。从那时起，研究人员一直在巴西小麦种质中寻找抗稻瘟病的基因型。本工作的目的是确定合成和普通小麦基因型在幼苗和成年植株生长阶段的部分抗性水平。在幼苗试验中，70个小麦基因型被18个稻瘟病菌菌株攻击。70个基因型中的12个被选择用于成株测试。在所评价的所有基因型中，BRS 229、BRS 179、CNT 8、BRS 120和BRS Buriti在幼苗生长阶段测试时表现出较好的抗性水平。而CNT 8、NE 20156-B、PF 844001、PF 964009和PF 804002在成株期受稻瘟病影响的叶面积和穗面积较小。
Partial resistance to blast on common and synthetic wheat genotypes in seedling and in adult plant growth stagesWheat blast caused by Pyricularia grisea was first reported in Brazil in 1985 in the state of Parana. From then on, researchers have been looking for resistant genotypes to blast disease among Brazilian wheat germplasm. The objective of this work was to determine the level of partial resistance of synthetic and common wheat genotypes in young and adult plant growth stages. In young plant tests 70 wheat genotypes were challenged by 18 isolates of P. grisea. Twelve of the 70 genotypes were selected for adult plant tests. Among all genotypes evaluated BRS 229, BRS 179, CNT 8, BRS 120, and BRS Buriti showed better resistance level when tested at young plant growths stages. However, CNT 8, NE 20156-B, PF 844001, PF 964009 and PF 804002 showed less leaf and head area affected by blast in adult plant.