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better crop varieties
相关语句
  相似匹配句对
     Which is better
     哪一个更好?
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     Which Is Better?
     哪个好?
短句来源
     2.Bree- ding better varieties.
     2、培育良种;
短句来源
     CROP VARIETIES INDUCED BY LASER IN CHINA
     我国激光育成的农作物品种
短句来源
     Application of electrophoresis in the identification of crop varieties
     电泳技术在作物品种鉴定中的应用
短句来源
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The ecological adaptability of the main crops: Spring wheat (Triticum aesticum), proso (panicum miliacum) and millet (Setaria itlica) in the mixed pastoral—farming area—the semiarid region of Guyuan County was analysed through the field experiments in three different climatic years and using plant ecological approach.The results indicated that among three crops, proso was well adapted to the environmental conditions and can pass through the stage of normal growth and development, and that spring...

The ecological adaptability of the main crops: Spring wheat (Triticum aesticum), proso (panicum miliacum) and millet (Setaria itlica) in the mixed pastoral—farming area—the semiarid region of Guyuan County was analysed through the field experiments in three different climatic years and using plant ecological approach.The results indicated that among three crops, proso was well adapted to the environmental conditions and can pass through the stage of normal growth and development, and that spring wheat was greatly affected by the climatic factors in its grain filling stage so that the varieties with drought—resistance, sencescence resistance and fast grain filling should be selected, and that millet was so poorly adapted that the early—developing early—maturing and high—yielding varieties must be selected.Thus far, a theoretical base for rational crop patterns in the region and selecting and breeding good crop varieties was provided.

通过三个不同气候年的田间试验,用植物生态学的方法,对农牧交错的固原县半干旱区的几种主要作物——春小麦、糜、谷的生态适应性进行分析。结果表明,糜子在当地具有较强的适应性,能正常通过生长发育阶段;春小麦在籽粒灌浆阶段受气候影响较大,宜选择抗旱、抗早衰、灌浆速率快的品种;谷子的适应性最差,宜选择早发、早熟、高产的品种。为该地区作物合理布局和品种选育提供了理论依据。

A Iong term (1974-1991) experiment of successive planting the triple cereal cropping (barley double-cropped rice) has been conducted at Huangyan City, near the east south coastal plain of Zhejiang province. The results indicated that though the different climate conditions and some successive planting disturbance have affected the experiment, yet with the adaption of good crop varieties and keeping a definite level of fertilization and field management, the average annual grain yield of the triple cereal...

A Iong term (1974-1991) experiment of successive planting the triple cereal cropping (barley double-cropped rice) has been conducted at Huangyan City, near the east south coastal plain of Zhejiang province. The results indicated that though the different climate conditions and some successive planting disturbance have affected the experiment, yet with the adaption of good crop varieties and keeping a definite level of fertilization and field management, the average annual grain yield of the triple cereal cropping reached a level of 1009kg/mu. It is evidenced that under an intensive practical condition, the triple cereal cropping could be planted succssively and obtain a moderate high yield. The best N efficiency from different proportion of both organic manure and chemical fertilizer was mentioned also.

在中国浙江省东南部滨海平原上的黄岩市,通过历时18年(1974~1991)的长期定位试验,得出稻田连年种植粮食三熟制“大麦双季稻”的研究结果为:尽管受到不同年份气候的影响以及同一复种方式长期连种带来的局限因素,但在固定的施肥管理条件下加上不断更换高产抗病良种,18年平均亩产可以保持吨粮水平(1009kg/亩)。说明在一定的生产条件下,粮食三熟制可以长期连种而达到高额稳产。研究还阐明了有机肥和化肥不同配比组合下的最佳增产效应。

Based on the results of regional experiments for the varieties of glutinous rice (Oryza sativa L.) offered by Longyan Prefectural Agricultural Institute,several agronomic characteristics,such days to flowering, resistance to disease,yield and its qualityetc.were comprehensively analysed,the grades of the test varieties in turn were made by using Fuzzy simillar precedence.The result confirmed that method was one of better ways to impertially evaluate and select the best crop varieties...

Based on the results of regional experiments for the varieties of glutinous rice (Oryza sativa L.) offered by Longyan Prefectural Agricultural Institute,several agronomic characteristics,such days to flowering, resistance to disease,yield and its qualityetc.were comprehensively analysed,the grades of the test varieties in turn were made by using Fuzzy simillar precedence.The result confirmed that method was one of better ways to impertially evaluate and select the best crop varieties adapted to local areas.

根据龙岩地区农业科学研究所提供的糯稻品种区试材料,采用相似优先比法,对各种品种的生育期、抗病性、产量、米质等性状进行了综合考评,最后得出本区试的糯稻品种的名次等级.分析证明,采用这种统计方法,可以实现最优选择之目的.

 
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