spikelet number 中文意思是什麼

spikelet number 解釋
小穗數目
  • spikelet : 小穗；小穗狀花。
  • number : n 1 數；數字；〈pl 〉算術。2 （汽車等的）號碼；第…，第…卷，第…期〈通常略作 No （復數 Nos ），用於...
  1. Effects of spikelet and grain positions on grain number, weight and protein content of wheat spike

    單粒重及單粒蛋白質含量的小穗位和粒位效應
  2. The vascular bundle has a similar spikelet number load and sink load in the hphr and shanyou 63

    重穗型組合的維管束穎花負荷量、總庫容負荷量均與汕優63相當。
  3. The positive correlation between 1000 - grain weight and grain numbers per spike, plant height and protein content, heading date and spikelet number per spike, have disadvantageous effect on the genetic improvement of wheat - rye recombinant lines

    千粒重和穗粒數的負偏相關對小麥異源（黑麥）重組系的遺傳改良有重大影響，打破該相關也相當困難。
  4. Combination of additive effects and interaction effects can account for over 50 % of genotypic variation in spikelet number per spike ( sns ) and spike number per 50cm row ( snr ), and over 40 % in fertile spikelet number per spike ( fsns ), 1000 grain weight ( kgw ) and ear length ( el ), over 30 % in plant height ( ph ), over 20 % in sterile spikelet number per spike ( ssns ) and less than 10 % in grain weight per 50cm row ( gwr ) and grain number per spike ( gns )

    加性效應和互作效應聯合起來，可以解釋群體總小穗數和50cm行長穗數變異的50以上，結實小穗數、千粒重和穗長變異的40以上，株高的30以上，不孕小穗數的20以上，而只能解釋50cm行長粒重和穗粒數變異的10以下。
  5. The positive significant correlations were found between heading date and spikelet number per spike, plant height and protein content, 1000 - grain weight and grain numbers per spike, grain number per spike and grain weight per spike, respectively

    結果表明：抽穗期與小穗數、株高與蛋白質含量、千粒重與穗粒重以及穗粒數與穗粒重均呈極顯著的正偏相關。
  6. The study on the characteristics of development and seed setting of different spikelet and floret positions was important for the realization of big - spike - cultural - goal with more spikelets and grains. with both the winter type ( wv ) and spring type ( sv ) varieties sown at different dates, it was found that the greater seed setting capacity of spikelets resulted in more grain number of spike. the trend of differences in grain weight per spikelet between the different sowing dates and varieties was similar to that of grain number. the correlation between the average grain weight of middle spikelets and lower spikelets and the grain weight per spike was highly significant. the environmental changes resulted from different sowing dates mainly effected the middle spikelets development, even though the differences between wv and sv were represented in every spikelet positions. the grain weight on the second floret position was most sensitive to the development status of wheat plant and environmental changes, and could represent the yielid potential of the whole spikelet. the results showed that the enhancement of seed setting of the middle spikelets ( from 5th to 15th ) and the grain development from the first to third floret positions was a key to realize big - spike and grain

    確定小麥不同小穗位和小花位發育與結實特性是實現大穗多粒的重要前提.本文通過對冬、春性小麥品種分期播種試驗得出，較高的小穗結實力是增加穗粒數的重要因素.不同播期、品種之間，小穗粒重和粒數呈現相同的變化趨勢.中部以及基部小穗粒重與穗粒重之間呈高度正相關.體現環境差異的播期效應以對中部小穗發育的影響為主，而冬、春性品種的基因型差異可反映在各個小穗位上.第2小花位的子粒發育狀況反映整個小穗的生產能力.結果表明，促進中部優勢小穗（第5 15小穗）結實和第1 3小花位子粒發育是提高小花結實率和穗粒重的關鍵
  7. ( 4 ) the results of qtl mapping indicated that the inheritance of yield traits was very complex, the explanation as follows : additive effects except for sterile spikelet number per spike ( ssns ), qtls of additive effects were tested for all other traits, with 10 qtls for 1000 grain weight ( kgw ). the large variance of the effect values and the contribution rate of qtls indicated that the effects are difference for different qtls

    14 。 （ 4 ）通過對產量性狀qtls作圖，發現產量性狀的遺傳非常復雜，可以從4個方面說明：加性效應除不孕小穗數外，各性狀均檢測到了表現加性效應的qtls 。其中，在各環境聯合分析下，檢測到了10個千粒重qtls ，各qtls的加性效應值和對群體變異的貢獻率也存在很大差異，說明不同的qtls不是等效的。
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