Identification of disease and pest resistance was done by Institute of Plant Protection, Hebei Academy of Agricultural Science, and the variety demonstrated resistance to southern blight leaf; mid-resistance to stalk rot, corn Curvularia leaf spot; high resistance to northern blight leaf, corn smut, corn dwarf mosaic; and sensitive to corn borer.

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The result showed there existed significant differences among families in seedling growth, dry matter accumulation, leaf shape as well as root parameters at high and low nitrogen levels. Remarkable reduction in seedling height, dry matter accumulation, leaf and root parameters were observed under low nitrogen stress, whereas larger proportion of photosynthesis production was allocated into roots to promote nitrogen absorption. Family variation in seeding growth, leaf and root parameters were increased under low nitrogen stress in comparison with high nitrogen level, which would be benefit to discriminate superior L. chinense families with high nitrogen efficiency. Nitrogen efficiency of different L.

結(jié)果表明：不同氮素水平下，馬褂木苗的生長(zhǎng)性欧美激情在线观看、干物質(zhì)積累日本熟妇乱子A片久久、葉片和根系等性狀皆存在顯著的家系遺傳差異；低氮脅迫將顯著抑制馬褂木苗葉片發(fā)育和根系生長(zhǎng)97干最新网址，影響苗高生長(zhǎng)和干物質(zhì)積累九色论坛，但低氮素水平下生產(chǎn)的光合產(chǎn)物則較多地分配至地下根系部分以促進(jìn)對(duì)氮素的吸收利用；與高氮處理比較人人操人人揉人人爽，低氮脅迫加大了苗木生長(zhǎng)狼友视频主页入口在线观看、葉片和根系參數(shù)等家系遺傳分化，有利于鑒別高氮效率的馬褂木優(yōu)良家系南美一级黄片。

In the oak community, leaf population dynamics was related to both physical environment and leaf characteritics, and this is consistent with the theories of maximum carbon gain, leaf life span, and phenlogical adaptation.

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This article through to the small leaf oak branch moisture contentdetermination and the analysis, take the small leaf oak's bough highlyas an independent variable, take the corresponding high branchmoisture content as the dependent variable,Uses the linear theory to construct the bough moisture contentestimation mathematical model, studies the small leaf oak boughmoisture content the distributed rule.

本文通過(guò)對(duì)小葉青岡主干含水率的測(cè)定和分析国产污污高清黄色视频，以小葉青岡的樹(shù)干高度為自變量，以相應(yīng)高度的主干含水率為因變量无码国产真人一级a爱做片，采用線性理論構(gòu)建樹(shù)干含水率估測(cè)數(shù)學(xué)模型性多多Av专区，研究小葉青岡樹(shù)干含水率的分布規(guī)律啪啪啪啪网站。

Results show that the change trend of growth is homogeneous, but it plays a different role in the growth of seedling height, ground diameter and leaf number; that for seedling height, peat soil is the best and red loam comes the next, for ground diameter, red loam is the best and peat soil comes the next and for leaf number, peat soil is the best, and red loam with nutrient soil named "zhidele" comes the next; and that in a growth season, the law of monthly increment of seedling height and leaf number is "fast-slow-fast-slow-stop" while the monthly increment of ground diameter is relatively stable.

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The results indicated that after treatment with 50gL^(-1) extracts of pepper leaf aqueous, the plant height, stem diameter, growth rate of leave length and width, leaf size, leaf number increased lower than the control, root activity was significantly lower than other treatments.

結(jié)果表明：50gL^(-1)葉浸提液處理后av先锋资源在线，2個(gè)品種辣椒幼苗株高、莖粗黄片黄大AAA待黄香蕉、葉片長(zhǎng)和寬的生長(zhǎng)速率及葉片大小一级黄色视频6f、復(fù)葉數(shù)的增加都比對(duì)照降低，根系活力也顯著低于其它處理欧美日韩视频在线观看。

The effect of aqueous infusion of pepper leaf on plant height, stem diameter, leaf number per plant, leaf area and the content of chlorophyll a, chlorophyll b and total chlorophyll, the activity of SOD and POD of pepper seedling all showed promotion with low concn. and inhibition with high concn. The conductivity and MDA content increased with the increment of aqueous infusion concn.

辣椒葉水浸液對(duì)辣椒幼苗的株高另类视频一区二区三区、莖粗、單株葉片數(shù)和葉面積人人干人人草人人操、葉綠素a成人色综合综合网站、葉綠素b和總?cè)~綠素含量S、OD活性及POD活性的影響均表現(xiàn)為&低濃度促進(jìn)www.avtv在线观看、高濃度抑制&人人caoshiping；而相對(duì)電導(dǎo)率和MDA含量則隨著水浸液濃度的增加而增大。

TO map QTLs affecting grain weight and characterize the inheritancemodes of the QTLs and two-locus interactions, 136 recombinant inbred linesderived from "Nanda2419" x "Wangshuibai" and an immortalized F_2 population (IF2)generated by randomly permutated intermating of these RILs were investigated. In addition,the present study was also conducted to characterize the genetic bases of morphologicaltraits including plant height, flag leaf length, flag leaf width, flag leafarea and ratio of flag leaf length to width, and their relationships with grainweight in wheat by analyzing QTLs for these traits using the RIL population.

本研究利用南大2419x望水白的136個(gè)株系的重組自交系群體和由其衍生的永久F_2群體對(duì)粒重進(jìn)行了QTL定位并探討其遺傳方式和上位性互作人人靠人人干，同時(shí)利用該重組自交系群體對(duì)株高以及旗葉長(zhǎng)中文字幕黃色av、寬、面積在线观看资源av、長(zhǎng)寬比等葉部形態(tài)學(xué)性狀進(jìn)行了QTLs定位并探討它們與粒重的相關(guān)性。

However,the increase of leaf weigh,leaf thickness and leaf area was gettingsmaller,Experiment showed that the 200～300 times diluted zinc sulphate and 20～40 mg/Lof gibberellin were suitable for young hawthorn trees.

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The fluoride absorption was positively related to respiratory rate of leaf andthe content of free water in leaf tissue,but negatively related to the thickness of lowersurface and osmotic potential with zero expansion pressure of leaf.

9樹(shù)木對(duì)大氣氟污染的抗性強(qiáng)弱與樹(shù)種的氣孔總傳導(dǎo)度大小負(fù)相關(guān)欧美色色色色色色，對(duì)大氣二氧化硫污染的抗性與氣孔總傳導(dǎo)度和葉組織pH值負(fù)相關(guān)人操人人操人人超碰，樹(shù)木對(duì)大氣氟化物的吸收能力與呼吸速率和自由水含量正相關(guān)，與膨壓為零時(shí)滲透勢(shì)和下表皮厚度負(fù)相關(guān)小姐毛毛片黄片免费视频。