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improved variety中文什么意思

發(fā)音:   用"improved variety"造句
  • 改良品種
  • 經過改良的種子
  • improve:    vt. 1.改良,改善,增進。 2.利用,活用。 3.增 ...
  • variety:    n. 1.變化,多樣化 (opp. monotony, ...
  • breeding improved variety:    選育良種
  • improved:    改進的; 改良的; 經過整治的
  • a variety of:    多種的; 各種各樣, 多種多樣; 各種各樣;不同種類; 各種各樣的..., 種種..; 各種各樣的,眾多的; 一種,種種; 種類繁多的; 種種,各種; 種種,多種多樣的; 種種,若干不同的
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例句與用法

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  1. The results obtained from maximum yield research ( myr ) experiments conducted at different state agricultural universities in india show that it is possible to harvest high yields of crops by adoption of improved varieties , high population stands and appropriate fertilizer levels
    在印度不同邦立農業(yè)大學進行的最高產量研究結果表明,通過使用良種、高密度栽培及掌握合理的施肥水平獲得作物高產是可能的。
  2. Rate of new lines provided to yield trials is 16 . 94 % for anther culture breeding , 1 . 49 times that of the conventional breeding ; and the rate of improved variety obtained from anther culture is 0 . 93 % , 3 . 32 times comparing with that from conventional breeding
    經花培入選的產量鑒定新品系的選擇效率為16 . 94 % ,是同期常規(guī)新品系選擇效率11 . 34 %的1 . 49倍;經花培育成的審定品種的選擇效率為0 . 93 % ,是同期常規(guī)育成審定品種選擇效率0 . 28 %的3 . 32倍。
  3. There are a number of possible explanations for this , but the most likely ones are removal of nutrients , improved varieties , improved farming techniques , including better moisture conservation , weed control , crop rotations and timely planting date ; and improved pest control practices
    對此有一些可能的解釋,但較好的解釋是,因為養(yǎng)分被移走,使用了良種和先進的農作技術,包括更有效的保水、除草、作物輪作和適時播種,此外還有良好的害蟲防治技術。
  4. Extension of improved variety in tianjin has made a great progress since the start - up of the 9th " five seed project , but there are still many problems exist . including : 1 . disconnection among seed cultivation , seed reproduction and seed extension , short of sustainable scientific research of seed cultivation , lack of effective variety protection and competitive varieties
    品種質量是種業(yè)發(fā)展的關鍵環(huán)節(jié),本文針對天津市種業(yè)的現狀指出當前存在的主要問題在于:一是育、繁、推脫節(jié),科研育種力量后勁不足,品種保護跟不上,沒有拳頭品種;二是良種推廣部門多是貿易公司形不成產業(yè);三是產后加工跟不上,阻礙了良種產業(yè)化的形成。

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