| 鹅观草、大麦及其属间杂种赤霉病抗性研究初报 |
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| 引用本文： | 周永红,万永芳.鹅观草、大麦及其属间杂种赤霉病抗性研究初报[J].四川农业大学学报,1994,12(1):34-36. |
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| 作者姓名： | 周永红 万永芳 |
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| 作者单位： | 四川农业大学基础部 |
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| 摘 要： | 本文对鹅观草Ｒ．ｔｓｕｋｕｓｈｉｅｎｓｉｓｖａｒ．ｔｒａｎｓｉｅｎｓ、大麦Ｈ．ｖｕｌｇａｒｅ以及它们的属间杂种进行了赤霉病抗性鉴定，结果表明：鹅观草的病情指数为４３．８，反应型为Ⅰ，高抗麦类赤霉病；栽培二棱大麦的病情指数为９６．２，反应型为Ⅳ，易感赤霉病；杂种Ｆ１的病情指数为７２．８，反应型为Ⅱ，较抗赤霉病。说明鹅观草的抗赤霉病基因在杂种中得到部分表达。本文还探讨了在大麦育种中利用鹅观草抗赤霉病种质的可能性。
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| 关 键 词： | 鹅观草 大麦（45CJ79EJ） 属间杂种 赤霉病（49LB） 抗性鉴定 属间杂交（49DB） |
REPORT OF STUDY ON RESISTANCE TO WHEAT SCAN FOR ROEGNERIA TSUKUSHIENSIS VAR. TRANSIENS, HORDEUM VULGARE AND THEIR INTERGENERIC HYBRID |
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| Zhou Yonghong,Wan Yongfang.REPORT OF STUDY ON RESISTANCE TO WHEAT SCAN FOR ROEGNERIA TSUKUSHIENSIS VAR. TRANSIENS, HORDEUM VULGARE AND THEIR INTERGENERIC HYBRID[J].Journal of Sichuan Agricultural University,1994,12(1):34-36. |
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| Authors: | Zhou Yonghong Wan Yongfang |
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| Abstract: | Identification of resistance to wheat scab for parents and the hybrid showed that R. tsukushiensis var. transiens was high resistant(disease index:43.8, reaction type: Ⅰ); H. vulgare was susceptible(disease index: 96.2,reaction type: Ⅳ) and the resistance of hybrid F1 was little lower than R.tsukushiensis var. transiens(disease index: 72.8,reaction type: Ⅱ). It indicated that the resistant gene to wheat scab in R.tsukushiensis var.transiens could be expressed partly in hybrid F1. The possibility of utilizing Roegneria germplasm in barley breeding was discussed. |
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| Keywords: | ROEGNERIA TSUKUSHIENSIS VAR TRANSIENS HORDEUM VULGARE INTERGENERIC HYBRID FUSARIUM BLIGHT OR SCAB IDENTIFICATION OF RESISTANCE GENERIC CROSSES |
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