【摘 要】
：
苗期用人工剪叶接种法筛选鉴定160个糯稻品种(系)对白叶枯病的抗性,再从中选择中抗以的抗病品种(系)24个,用白叶枯病菌的9个菌群(每个菌群选一个菌株)接种鉴定灯白叶枯病的抗
论文部分内容阅读
苗期用人工剪叶接种法筛选鉴定160个糯稻品种(系)对白叶枯病的抗性,再从中选择中抗以的抗病品种(系)24个,用白叶枯病菌的9个菌群(每个菌群选一个菌株)接种鉴定灯白叶枯病的抗谱。抗白叶枯病的品种(系)有IR_29和82-66两个,中抗白叶枯病的品种(系)有IR_20选1,滇瑞302-2等30个,对白叶枯病抗谱广(抗8个菌株)的品种(系)只有滇瑞302-2,抗谱较广(抗7个菌株)的品种(系)有82-66、滇瑞303-3、滇瑞306、滇瑞308和粟秆糯等5个。品种对白叶枯病的抗性与其抗谱有联系,但有关别,在育种工作中抗病种质的选用应建立在广谱抗性的基础之上较为可靠。
Seedlings were screened by artificial leaf pruning method to identify 160 glutinous rice varieties (lines) resistance to bacterial blight, and then select the anti-resistant varieties (lines) 24, 9 bacterial blight bacteria The group (each strain selected a strain) inoculation identification of bacterial blight resistance spectrum. Bacterial blight resistance varieties (lines) IR_29 and 82-66 two, the varieties resistant to bacterial leaf blight (IR_20 selected 1, Dianrui 302-2 30, resistance to bacterial blight on the spectrum The cultivars (lines) of Guang (resistant to 8 strains) were only 82-66, Dianrei 303-3, Dianrui 306, Dianrui 302-2 with only Dianrui 302-2 and the anti-7 strains Swiss 308 and waxy cornstarch 5. The resistance of cultivars to bacterial blight is related to their resistance spectrum. However, the selection of resistance germplasm should be based on broad-spectrum resistance.
其他文献
We have studied the luminosity-timescales relation 0f29 γ-ray-loud blazars with observed minimum variation timescales. Following the acceleration model of Ghis
茎是植物的重要组成部分,并具有支撑和运输功能,为了诱导茎成为能够发育再生植株的分生组织与胚性细胞,我们可以采用离体培养的方法,将分割后的茎切块放在具有不同生长素和
Magnetic and structural properties of YCo12-x Tix compounds have been investigated by x-ray diffraction an magnetic measurements. X-ray diffraction pattes of a
目的分析大肠癌始动细胞群锌指蛋白表达谱变化信息。方法采用无血清悬浮培养结合CD133抗体标记磁珠分选获得Colo205来源大肠癌始动细胞,高通量测序分析180个锌指蛋白基因mRNA
A novel compound of pyrazoline derivative, 3-(4-methoxyphenyl)-5-[4-(1,1-dimethylethylphenyl)]-4,5-dihydro-1- phenyl 1H-Pyrazole (PYZ) has been synthesized. It
棉花是重要的经济作物,它一身都是宝。除了棉纤维是主要的纺织工业原料和人民生活必需品外,它的副产品棉子、棉子壳、棉短绒、棉秆等都有重要的经济利用价值。随着社会的进
Three-dimensional disk-type holographic storage using spatioangular multiplexing with a spherical reference beam is analyzed and experimentally demonstrated. Th
通过重点产棉县的田间调查,营养钵塑膜育苗麦林移栽的优越性是很明显的。据23块棉田的调查分析,营养钵移栽棉长势稳健,座铃均匀,铃多铃大,亩铃数为64992个,与直播棉相比,在
Local structures of the mechanically alloyed Fe77-xNixCu1Nb2P14B6 soft magnetic materials have been investigated by x-ray absorption fine structure. The result
The quantum wavefunctions and the corresponding energy levels of a RLC (Resistance-Inductance-Capacity)electric circuit are obtained by using canonical quantiza