The study was conducted to investigate the dynamic changes in production of Sclerotinia sclerotiorum apothecium in the field of spring oilseed rape in the northeast part of China .

為明確寒地春油菜菌核病菌子囊盤的田間消長(zhǎng)規(guī)律精品视频专区一在线观看，采用棋盤取樣法對(duì)黑龍江省西北部春油菜種植區(qū)進(jìn)行了調(diào)查。

Rapeseed stem weevil (Ceuthorrhynchus asper Roel.) is the main rapeseed pest in Northwestern China. It occurs one generation each year with adult overwintering.

油菜莖象甲是中國(guó)西北地區(qū)油菜的主要害蟲欧美影院成年免费版视频在线播放，一年發(fā)生一代A级片，以成蟲越冬。

Oilseed rape is an important oleaginous crop. Kinds of diseases during its growth period are responsible for dramatic yield losses.

油菜是重要的油料作物在线播放最新国产精品，在油菜的生育期中受到多種病害的為害黑人黄色网站，給油菜的生產(chǎn)帶來很大損失。

The effect of the three rotation planting methods on the amount of the available sulphur in the soil was studied.The results indicated that the total available sulphur content under the three different rotation plantin...

施硫可增加小麥的穗長(zhǎng)欧美日韩黄色三级久久、穗粒數(shù)日韩精品无码加勒比综合，增加油菜單株結(jié)莢數(shù)、角果長(zhǎng)和角粒數(shù)藏精阁无码一区二区在线，從而增加了小麥和油菜的產(chǎn)量，施硫45 kg/hm2使小麥3p性交A片免费、油菜產(chǎn)量的增幅分別為6.5%~17.3%和

To improve the efficiency and application, pollen tube growth of different Brassica species is observed and factors of transformation are studied for optimization.

繼而通過比較不同白菜型油菜久久午夜一级A片5免费软件、甘藍(lán)和甘藍(lán)型油菜品種的花粉管生長(zhǎng)規(guī)律和轉(zhuǎn)化率，得到表達(dá)報(bào)告基因的除草劑抗性植株2021韩国三级在线无码中文，實(shí)現(xiàn)了不同類型和基因型油菜的高效轉(zhuǎn)化2021欧美精品视频在线，擴(kuò)展了方法的應(yīng)用范圍。

The high quality of oil rape has been grown in Enshi since 1990s.Theplanting area increased rapidly from 1300 ha in 1994 to 30800 ha in 2005 which accountsfor 53.86% of the total production area of oil rape in the region.

恩施州自20世紀(jì)90年代開始發(fā)展優(yōu)質(zhì)油菜免费黄色网站播放，且有一定規(guī)模蜜芽tv国产精品一级毛片，1994年雙低油菜面積為0.13萬hm~2，到1998年發(fā)展到1.50萬hm~2一级黄页电影免费在线大全，2005年發(fā)展到3.08萬hm~2特级毛片高潮一级一级毛，占全州油菜生產(chǎn)總面積的53.86％，推廣速度明顯增快亚洲91av网。

And the development and formation of the sieve tube elements of the different cultivars were influenced by the different levels of B: the sieve tube elements of the two cultivars were not formed at the level of 0.001mg/L; At the level of 0.01mg/L, the sieve tube elements of the high efficiency (Qingyou 10) cultivar could be formed, but the structure of the sieve tube elements was not complete, and the abruption and differenciation of the sieve tube elements of the low efficiency cultivar were inhibited, they were not formed; At the level of 0.01mg/L, the sieve tube elements of the two cultivars were formed.

不同硼水平下91精品自产拍不卡，不同硼效率甘藍(lán)型油菜品種根尖篩管分子的發(fā)育與形成受到影響：硼濃度為0.001mg／L時(shí)，兩個(gè)油菜品種都不能形成篩管分子亚洲欧美一区二区视频；硼濃度為0.01mg／L時(shí)一级黄色片日日爱，硼高效品種青油10號(hào)篩管分子可以形成，但結(jié)構(gòu)受到破壞91久久久久久一区二区，而硼低效品種Bakow篩管分子的分裂與分化受阻色黄乱婬伦免费网站耙，幾乎不可能形成成熟的篩管分子；硼濃度為0.5 mg／L時(shí)黄片一区二区三区，兩個(gè)油菜品種都能正常生長(zhǎng)發(fā)育亚洲欧美视频一区。

The results of histochemical GUS assay showed that no expression of GUSint was observed in Agrobacterium, with transient expression as high as 100% in cotyledonary node of Brassica napus L. after inoculated for three days. It not only verified that the vector was successfully constructed, bur also laid a basis for further increasing the stable transformation efficiency of other Brassica plants, and rapidly clarifying the function and pattern of expression and regulation of a unknown gene.

組織化學(xué)染色結(jié)果表明特黄特色黄片，GUSint在農(nóng)桿菌中沒有表達(dá)，而在接種3d的油菜中可高效瞬間表達(dá)91AV导航站，其中在子葉柄中瞬間表達(dá)率高達(dá)100%欧美插插影院，這一方面證實(shí)載體構(gòu)建成功，另一方面也為進(jìn)一步優(yōu)化油菜及其它蕓薹屬植物轉(zhuǎn)化體系及在油菜中快速研究目的基因的功能和表達(dá)調(diào)控模式奠定了基礎(chǔ)久草网在线地址。

First, rape breed innovation must be strengthened , which can reduce die content of glucosinolate and erucic acid of rape breed and thus improve the per unit area yield and oil content of rape.

人世后我國(guó)油菜產(chǎn)業(yè)參與國(guó)際競(jìng)爭(zhēng)的主要形式是通過發(fā)展我國(guó)油菜生產(chǎn)以減少對(duì)國(guó)外油菜及制品的進(jìn)口欧美一区二区在线网站观看蜜臀。

The sterile and fertile plants of BC3 generation, derived from the hybridization between sterile line and restorer line and maintaining line, were detected by GISH-dcFISH. The observations showed that the fertile plants were all the Brassica napus-Xinjiang wild Sinapis arvensis monosomic alien addition lines, and the sterile plants had no Sinapis arvensis chromosome.

不育系分別與保持系、恢復(fù)系Nsa恢1毛片在线观看免费网站、保持系雜交后獲得了BC3代不育株及可育株国际a片播放，GISH-dcFISH分析結(jié)果表明，BC3代可育株為甘藍(lán)型油菜－新疆野生油菜單體異附加系美女扒开腿让男人桶爽免费动态图，而不育株中不含新疆野生油菜染色體78摸免费人成视频在线观看。