yield zone 中文意思是什麼

yield zone 解釋
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  • yield : vt 1 生出,產生(作物、報酬、利益等)。2 給與,讓與;讓渡;放棄(權利、地位等);交出。3 承認。4 ...
  • zone : n 1 【地理】(地)帶。2 區域,范圍,界。3 〈古、詩〉(腰)帶。4 圈,環帶。5 【數學】(球面)帶;...
  1. Abstract : the main characters and seed set of bc1 , bc2 , bc1f2 from ms line back - crossing with the pollen of hybrid rice were studied. the appearance of a large number of self fertile plants in ms line was analyzed. the effect of introgression of restoring genes on ms line purity and hybrid yield in indica and japonica rice was discussed. it was pointed out that “ iso - cytoplasm restorer line ” was seriously reducing the purity of ms line and that hybrid rice was unsuitable for isolation zone in the seed production fields

    文摘:研究了雜交稻花粉對母本不育系回交後代群體bc1 、 bc2 、 bc1f2的主要農藝性狀和育性表現,分析了不育系中出現大量自交結實株的原因,討論了恢復基因滲入對秈、粳不育系純度和雜交稻產量的影響,指出「同質恢」對降低不育系純度的嚴重性和雜交稻作制種田隔離區的不合理性。
  2. Cultivation techniqus of high yield chinese jujube in sloping land in first sub - zone of loess hilly region

    黃土丘陵區第一副區山坡地棗樹豐產栽培技術
  3. The panels of hull girder may collapse or buckle before it reaches the yield stress. the curve of the stress - strain is usually constituted by stable zone -, non load - shedding zone and load - shedding zone

    並且船體截面的組成單元(一般是加筋板單元)在達到材料屈服應力之前還可能發生多種形式的屈曲。
  4. Four varieties or lines o fruit corn were tested in tianjin agriculture demonstration zone in 2006, and growth period, grain yield, ear character and quality of each of them were primarily sum up

    摘要2006年對4個水果玉米新品種(系)在天津農業示範園區內進行品比試驗,初步總結了各參試水果玉米品種(系)的生育期、果穗產量、果穗性狀及品質表現。
  5. Indicators such as plant height stem thickness, leaf quantity, leaf area, chlorophyll content, photosynthetic rate, transpiration rate and yield of tomatoes all increased as root zone temperature increased

    結果表明,隨著根區溫度的增加,番茄的株高、莖粗、葉片數、葉面積、葉綠素含量、光合速率、蒸騰速率、產量均增加。
  6. The size of the roughly hemispherical destruction zone that results depends on the yield of the weapon, the detonation depth and the composition of the ground

    大致呈半球形的破壞區域,大小依核彈的當量、引爆深度和土壤質地而定。
  7. According to the report, global warming will lead to increased agricultural yield in the northern region of the temperate zone, but will be detrimental to farms in the tropical zone. this will further widen the gap between the rich in the prosperous industrial countries and poor in developing nations

    報告指出,全球暖化將使溫帶北部地區農產增加,但卻危害熱帶農業,進一步擴大工業化富國與貧窮的開發中國家間的貧富差距。
  8. By analyzing the runoff and sediment characteristics of tao river basin, it can be concluded that the main sediment - yield region is loess area between lijia village and hongqi zone where sediment yield in flood season ( june to september ) is more than 81 percent of the mean averaged over years

    分析了流域水沙特性:洮河流域泥沙的主要產地是李家村-紅旗區間的黃土地區;汛期( 6 - 9月)輸沙量佔多年平均的81以上。
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