leaf rust的例句大全

bioassay methods of wheat leaf rust with candidate chemicals .

药剂对小麦叶锈菌生物活性试验方法的研究。

over-wintering and over-summering of wheat leaf rust and stem rust in sichuan

四川地区小麦叶、秆锈菌的越冬和越夏

9 of 12 sources of resistance showed to be valueless against leaf rust;

在12个抗源材料中，有9个对抗叶锈没有利用价值。

identification of resistance to wheat leaf rust of xiaobingmai 33 at seedling stage and postulation of its resistant gene

小冰麦33苗期抗叶锈性鉴定及其抗性基因推导

In China, leaf rust occurs serious in North and Northeast regions, particularly in Southwest and Yangtze River Valleys.

在中国，小麦叶锈病尤以西南和长江流域一带发生最重，华北和东北部分麦区也发生严重。

genetic resistance is the most economical, effective and safety method of reducing yield losses due to leaf rust.

培育和利用抗病品种是减轻叶锈病危害的最经济、有效、安全的方法。

The same situation was on leaf blotch of wheat. However, the genotypes from Hebei did not show as much resistance to powdery mildew and leaf rust as European ones.

但是河北品种对小麦白粉病和锈病的兼抗性比欧洲品种低，而对小麦叶枯病的兼抗性较高。

wheat leaf rust is an important disease of wheat, which threats and hinders the wheat production.

小麦叶锈病是小麦生产上的一个重要病害，威胁和阻碍小麦生产。

wheat leaf rust is an important disease in the production of wheat.

小麦条锈病是一种世界性病害，严重威胁着小麦生产。

Racial Identification of Wheat Stem Rust in 1984 in China and tne Application of Host Detached Leaf Culture Method

1984年全国小麦秆锈菌生理小种区系分析及寄主离体叶培养鉴定法的应用

The result showed that abnormal change value of leaf photosynthetic rate as a forecast index of rust incidence was representative and had higher fit degree, and this method is reliable and practical to a certain extend and is easi to be adopted.

结果表明：以单叶光合速率的异常变化的大小作为小麦条锈病发生程度的指标具有宏观模糊性，有一定的代表性，本方法简单易行，拟合率较高，有一定的可靠性和实用性。

The flowers and trees rust, downy mildew, black spot disease, leaf blight, branch blight disease, powdery mildew etc. were significantly controlled by this fungicide.

对花木锈病、霜霉病、黑斑病、叶枯病、枝枯病、白粉病、溃疡病等防效显著。

leaf blade leathery, 2. 2-4 cm, abaxially sparsely rust-brown pubescent, margin crenate;

叶片革质，2.2-4厘米，背面稀疏锈棕色短柔毛，边缘具圆齿；

branchlets, petioles, inflorescence rachises, and leaf veins rust colored hirsute.

小枝，叶柄，花序轴和叶静脉锈色多毛。

young branchlets and leaf rachises rust-colored pubescent, with few prickles or unarmed.

幼枝和叶轴具锈色短柔毛，有很少的皮刺或无刺。

4 (3) leaf blade abaxially dirty gray with many rust-colored peltate hairs.

叶片背面脏的灰色的具很多锈色的盾形的毛。

( CK), better disease resistance to powdery mildew, rust and leaf wilt, more tillers and spikes per plant, average 30 grains per spike, higher plant, lower thousand-grain weight, and high quality.

综合抗性好，抗白粉病、锈病和叶枯病；分蘖成穗率高，穗粒数平均为30粒：植株偏高，千粒重较低：品质优良。