穗密度 的英文怎麼說
中文拼音 [suìmìdù]
穗密度
英文
spike density-
Tillering and earbearing characteristics of wheat varit ies “ miannong 4 " and “ miannon 3 " were studied under three densities. the results indicated that t he two varieties had medium tillering speeds and tillering numbers ， and their t illering number under medium density was 3. 7 tillers per plant ， which is less th a n that of “ mianyang 11 " ， a popular wheat variety in sichuan in 1980s. their perc en tage of earbearing was about 55 % ， which is also lower than that of “ mianyang 11 "
在3種密度下對綿農4號、綿農3號的分蘗及成穗特性進行了初步研究，結果表明：綿農4號、綿農3號的分蘗速度和分蘗力皆為中等，中等密度條件下，有效分蘗期每天可形成0 . 15蘗，各期總蘗數為3 . 7左右，低於綿陽11號；與綿陽11號分蘗速度的差異主要在有效分蘗期；綿農4號、綿農3號的成穗率為55 %左右，低於綿陽11號；但分蘗和主穗的差異較小，分蘗穗重佔主穗重的80 %左右，莖蘗穗重變異系數15 %左右，穗子大小均勻一致，小穗相對較少，小穗較大，這些性狀都優于綿陽11號。Influence of density and topdressing time of nitrogen fertilizer on carbohydrate metabolism in leaf and grain of large - ear cultivar of high - yielding winter wheat
密度及追氮時期對大穗型小麥旗葉及子粒碳水化合物代謝的影響The results are as follows : grain number per panicle, seed density, secondary branch number, secondary branch grain number, secondary branch grain rate are significantly positively correlated with rice yield, & the yield is affected by all of them
產量與每穗粒數、著粒密度、二次枝梗數、二次枝梗粒數、二次枝梗粒率呈極顯著的正相關關系，這些性狀對產量都有積極意義，產量是其綜合作用的表現。Since its foundation, china tietong invested millions of rmb and adopted dwdm to build a high - speed backbone optical transmission network composed of five fiber loops : northeast, northwest, southwest, southeast and beijing - shanghai - guangzhou loop, realizing the unified net control and schedule of the nationwide backbone transmission network
自成立以來，中國鐵通投資數百億元，採用先進的密集波分技術，組建了京滬穗高速環、西南環、西北環、東北環、東南環等五大骨幹傳輸網路，並且實現全國骨幹傳輸網路的統一網管指揮和調度。Since its foundation, china tietong invested millions of rmb and adopted d to build a high - speed backbone optical transmission network composed of five fiber loops : northeast, northwest, southwest, southeast and beijing - shanghai - guangzhou loop, realizing the unified net control and schedule of the nationwide backbone transmission network
自成立以來，中國鐵通投資數百億元，採用先進的密集波分技術，組建了京滬穗高速環、西南環、西北環、東北環、東南環等五大骨幹傳輸，並且實現全國骨幹傳輸網路的統一網管指揮和調度。These plant - type characters of " yedan 12 " resulted in an improving crown - canopy structure which favoring conditions of aeration and solar penetration, so suitable enlargement of planting density would enable maize plants to extending their active photosynthetic area which promoted bigger ears with more kernels and then attained high yield of grains per plant
掖單12這種株型特點改變了植冠構造，更有利於通氣條件和陽光透射，這樣適當增大植株密度將使玉米植株擴大活性光合作用面積，促成大穗、穗粒數更高，因此單株籽粒產量更高（表9 ） 。There was some increase in percentage of dead seedlings and non - earbearing plants and some decrease in 1000 grains weight and grains of single - ear along with the increase of the plant densities, but yields still increased because of the more increase in numbers of available ears
植株密度增加的同時，死株、無穗株百分數會增多，千粒重和單穗籽粒數會降低，但產量會增加，因為增加了有效穗數。Through to analysis of main strait characteristic and productivity ability of the three kind of different types super - high - yeild genotype structure for the high density in loose with small leaf, short stem, big ear ; the middle density with middle leaf, high stem, big ear and the low density in compact with big leaf, shorter stalk, big ear, we think that the three kind of types above all have the super - high - yield ability, but the last ones, yield potential is highest
通過對小葉矮稈中大穗高密度鬆散型、中葉中高稈大穗中密度型和大葉中矮稈大穗緊湊低密度型3種不同類型超高產基因型株型結構的主要性狀特徵及生產能力分析認為，上述3種類型都具備超高產的產量能力，但小葉矮稈中大穗高密度鬆散型產量潛力最高。Research results from field experiments with yedan 14 ( table 2. ) suggested that density and ears play an decisive roles in yield formation, maize yield increased with density and ears but grains per ear and kernel weight reduced when density varied from 52500 to 75000 plants / ha
掖單14大田試驗研究結果（表2 ）指出密度和穗數是產量構成的決定性因素，玉米產量隨密度和穗數增加而增加，但穗粒數和粒重當密度由52 ， 500增加到75 ， 000株/公頃時都降低。分享友人