水稻抗感杂优组合混播栽培控瘟研究Ⅰ
Studies on Controlling Rice Blast by Mix-culture ofResistant with Susceptible Hybrid Rice Varieties (Report Ⅰ)
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摘要: 采用正交L8(4×28)试验方法,研究不同抗、感杂优组合地优64和威优64混合播种栽培的控瘟性,结果表明对抑制穗颈瘟病指数下降46.32%～47.17%.大田示范控叶瘟、穗瘟效果分别达33.32%和37.66%,增产13.98%.Abstract: It was reported home and abroad that, the harm of rice blast can be controlled by mix-culture of various varieties.Mao Jianhui (1991) reported the rate of leaf blast decreased 74.23 % and the disease index decreased 85.30% while mix-cultulre method was carried out.The sogatells furcifera (Horvath) determination L8 (4 × 28) was used for the study on controlling rice blast by using mix-culture of different combinations ofhybtid rice Di-you 64 (R) with Wei-you 64 (S).The results showed that the panicle blast indexes decreased 46.32%～47.17 %.In the field demonstration, the leaf and penicle blast-controlling effects were 33.32 %and 37.66 % respectively, the yield increased 13.98%.
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Key words:
- Rice blast /
- Hybrid rice /
- Mix-culture
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[1] 毛建辉等.1991.抗感品种混植对水稻主要病害的效应.植物病理学报,(2):155~169 [2] 凌忠专译.1990.稻瘟病与抗病育种.(日)山.崎义人等着. 455~465.农业出版社 [3] 罗榕城.1991.闽北稻疽病发生与综防对策.福建农业科技,(2):6~7 [4] 小泉信三.1983.植物防疫,37(11):477~480 -
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