Breeding technology is the base of seedling cultivating, seedling of Korean Spruce in certain shade could grow better than seedling of Korean Spruce in sunlight, seedling of Korean Spruce could grow bester in 25% soil containing water. Forest management was formed by standardized site selection, site preparation, planting, cultural work on young trees of seedlings cultivating technology.

育苗技術(shù)是苗木培育的基礎(chǔ)另类亚洲精品网站av，紅皮云杉育苗在一定的遮光條件下生長(zhǎng)好于全光條件下的生長(zhǎng)土壤含水率25％最適苗木生長(zhǎng)99久久久无码国产精片；營(yíng)造技術(shù)將整套苗木培育技術(shù)從立地選擇、整地栽植欧美黄频免费a、幼林撫育系統(tǒng)規(guī)范化后面形成的超碰黄色在线看；密度定量管理以密度效應(yīng)為理論基礎(chǔ)成年人的视频在线观看。

The seedling status, the seedling characters and chlorophyl content of maize,cotton and groundnut after seed soaking with root and seedling promoter were investigated.

根系是組成和維系作物生長(zhǎng)發(fā)育的重要功能器官，在一定生態(tài)和栽培條件下的作物亚洲精选午夜久久无码6O80，其地上部生長(zhǎng)發(fā)育狀況的好壞或經(jīng)濟(jì)產(chǎn)量的高低最黄欧美性爱黄图，在很大程度上是其對(duì)根系適應(yīng)的反應(yīng)。

The basic characteristics of the whole process were gained. When the seedling falling out of the tube feet, the difference of the time interval between 2 neighboring seedlings wasn't notable, and the difference of the time interval of 2 neighboring seedlings wasn't notable and the agricultural time was not special notable. These results showed that the uniformity of the pneumatic ordered throwing transplantation was excellent and could meet the demands from design and agriculture; Upstanding state was primary as the seedling falling out of the tube feet, it showed that the seedling could keep erective preferably when the seedling falling to the field.

結(jié)果表明：缽體苗從導(dǎo)苗管管腳中落出時(shí)国产一级黄色操逼片，相鄰2株缽體苗落出時(shí)的時(shí)間間隔差異不顯著色视频综合一区二区二区，從左中右3個(gè)管腳落山的相鄰2株缽體苗的時(shí)間間隔與農(nóng)藝要求的時(shí)間差異極不顯著欧美一级网页，說(shuō)明氣力有序拋秧均勻性好精品国产免费观看一，能滿(mǎn)足設(shè)計(jì)要求和農(nóng)藝要求；缽體苗從導(dǎo)苗管管腳落出時(shí)以直立狀態(tài)為主亚洲欧美激情小说，表明氣力有序拋秧的缽體苗落入田間時(shí)能較好地保持直立www.p2p521.com。

Suitable control content of culture medium can benefit growth, proliferation rate of Williams B6 seedling, save spending of production material. The content of 30ml per bottle show the highest proliferation rate and the higher usage of culture medium, the contrary result will appear when preponderate over the content of 30ml per bottle, but the increase weight of single seedling. For the losing of medium by sterilization, seedling SO2 resistance and other effects, it's considered the content of 25~30ml per bottle is fit for production of tissue culture seedling.

適宜控制培養(yǎng)基用量，能穩(wěn)定威廉斯B6香蕉組培苗生長(zhǎng)量欧洲人成视频免费、繁殖率婷婷五月婷婷五月综合激情五月，減少原料投入。30ml的用量其增殖率最高日韩在线精品福利网页视频观看免费、培養(yǎng)基利用率較高亚洲一级av无码中文毛片，超過(guò)30ml的用量其增殖率相對(duì)下降，培養(yǎng)基利用率降低欧美性爱人人操天天干，但單苗增重量最大欧美的人人操，綜合考慮培養(yǎng)基損失、蕉苗耐SO2性等因素欧美A级中文字幕乱片，認(rèn)為培養(yǎng)基用量應(yīng)控制在25~30ml/瓶WWW.AVAV50.C0M。

Water stress is one of the most important abiological stress to maize seedling .In this study, we arm to identify the sensitive stage of maize seedling to water stress and select the material which tolerance to flooding. And we use waterlogging tolerance index to identify the sensitive stage of maize seedling. we have studied 20 inbred lines of maize which seedlings under water stress in three stage. The result show that the three leave stage is the most obvious stage to flood stress. In addition, we have analyzed ten of the inbred lines to re-act the waterlogging tolerance index. The result show good re-action. And the result also show that waterlogging tolerance index is a credible index to select waterlogging tolerance materials in seedling.

澇漬是玉米苗期主要的非生物逆境脅迫之一；本試驗(yàn)通過(guò)對(duì)20份玉米自交系進(jìn)行苗期的淹水對(duì)照試驗(yàn)欧美另类69高清XXXXX，采用了三個(gè)處理時(shí)期在线播放视频日韩精品免费，并利用耐漬系數(shù)作為指標(biāo)進(jìn)行敏感時(shí)期的鑒定，結(jié)果表明三葉一心期是淹水的相對(duì)最佳時(shí)期在线视频A∨；同時(shí)利用其中10份自交系對(duì)耐漬系數(shù)的重演性進(jìn)行了分析三级在线国产精品，結(jié)果表明其重演性很好；同時(shí)結(jié)果還表明耐漬系數(shù)是耐漬性鑒定的一個(gè)可靠指標(biāo)欧美日韩www。

When the Agropyron seeds were treated with 1.0kv.cm-1,the seedling rate,seedling length and root length increase by 4.5%,81% and 48% respectively,and treated with 4.5kv.cm-1,the seedling rate,seedling length and root length increase by 4.8%,84% and 66% respectively.

結(jié)果表明：不同電場(chǎng)對(duì)冰草種子萌發(fā)及幼苗生長(zhǎng)產(chǎn)生不同的影響A片在线观看免费的网站，用1.0 kv/cm電場(chǎng)強(qiáng)度處理冰草種子10 min，可提高種子出苗率4.5%野狼av社区，苗長(zhǎng)增長(zhǎng)81%在线A片一级永久免费观看，根長(zhǎng)增長(zhǎng)48%；用4.5 kv/cm電場(chǎng)強(qiáng)度處理冰草種子10 min亚洲欧美另类久久图片，可提高種子出苗率4.8%伊人黄色电影一级，苗長(zhǎng)增長(zhǎng)84%日韩午夜在线资源精品视频观看网址，根長(zhǎng)增長(zhǎng)66%。

Heddewigii, Dianthus barbatus L, Dianthus latifolius, Dianthus caryophyllus and Dianthus chinensis var. liaotungensis, with relatively high fructification rates and certain traffic tolerance, showed little difference in ecological adaptability and exhibited an average seedling height of 20cm and a mean crown size of 23cm, and pruning during the late growth period could obviously promote flowering and reduce the seedling height by 3cm. While Dianthus barbatus L. and Dianthus phlox subulata, with relatively low fructification rates and higher traffic tolerance, had an unobvious difference in ecological adaptability, which present an average seedling height of 14cm and a mean crown size of 36cm, and pruning during the late growth period could promote flowering to some extent and reduce the seedling height by 2cm.

其中欧美性爱精品在线视频，大紅石竹日本高清com、錦團(tuán)石竹、五彩石竹久久伊人小草视频、五寸石竹偷拍偷窥盗摄短视频专区、濃香石竹、重瓣石竹品種間差異小亚洲黄色网也，平均苗高20cm欧美人性黄片视频直播间，冠幅23cm，結(jié)實(shí)率相對(duì)高欧美亚洲另类专区，有一定耐踐踏能力https国产黄视免费，在生長(zhǎng)后期進(jìn)行修剪能很好的促進(jìn)開(kāi)花并降低株高3cm；常夏石竹和美國(guó)地被石竹品種間差異小欧美精品-精品国内自产拍在线，平均苗高14cm亚洲天堂性爱，冠幅36cm，結(jié)實(shí)率低毛片网址资源这些播放，耐踐踏能力稍強(qiáng)国产无遮挡18禁无码网站欲色，在生長(zhǎng)后期進(jìn)行修剪能較好地促進(jìn)開(kāi)花并降低株高2cm。

This paper introduced some practical Dendrocalamus latiflorus clonal propagational seedling raising techniques including bamboo branch cutting seedling raising,seedling raising with planted internodes,and plant division seedling raising to meet the constantly expanding need of D.

為解決大面積造林竹苗缺乏的難題人操人人人爽人人爽人人，本文從實(shí)際出發(fā)介紹了幾種切實(shí)可行的麻竹無(wú)性繁殖育苗技術(shù)：竹枝扦插育苗首页日韩精品无码AV、埋節(jié)育苗和分株育苗，用以滿(mǎn)足不斷擴(kuò)大的麻竹造林的需要A片中文在线免费。

The grain-leaf ratio showed a periodic oscillation relation to total seedling number in each growing stage, it was decreased with the increasing of total seedling number in earlier winter stage, wintering stage and jointing stage and was increased with the increasing of total seedling number in turning green stage. The grain-leaf ratio was bigger when the total seedling number was 2700000-3200000 plants/hm^2 in earlier winter stage and was 6400000-8200000 plants/hm^2 in turning green stage.

粒葉比與各生育階段總苗數(shù)呈周期性振蕩關(guān)系日韩一区二区三区欧美，且隨著冬前期、越冬期和拔節(jié)期總苗數(shù)的增加而減小欧美性色精品视频二区，隨著返青期總苗數(shù)的增加而增大禁止十八岁以下观看的黄色网站，當(dāng)冬前期總苗數(shù)在270萬(wàn)320萬(wàn)株／hm^2、返青期總苗數(shù)在640萬(wàn)820萬(wàn)株／hm^2時(shí)成年人在线看的视频，粒葉比較高最新的黄色网站一级片黄色网站黄色网站一。

After seedling trees of Yunhe Snow Pear were polluted by Pb(superscript 2+), Cd(superscript 2+), synthesis of chlorophyll was restrained, toxic effect of Pb(superscript 2+), Cd(superscript 2+) on seedling trees was intensified, membrane lipid peroxidation damage was increased. And the protective enzymes system start-up of polluted seedling trees enhanced antioxidative enzymes activities of seedling trees.

結(jié)論］Pb(上標(biāo) 2+)、Cd(上標(biāo) 2+)污染云和雪梨苗99福利人在线国产，抑制葉綠素的合成www.亚洲第一页在线视频，增強(qiáng)超養(yǎng)陰離子自由基O2(上標(biāo)-對(duì)植株的毒害性，使膜脂過(guò)氧化損傷程度高色哟哟图片，受重金屬污染植株啟動(dòng)保護(hù)酶系統(tǒng)国产在线观看无遮挡无码Aⅴ，以增強(qiáng)植株的抗氧化性。