Introduced: mainly Simmental, Charolais cattle, Limousin beef cattle breeding, such as male parent to do to Luxi cattle to cross the female parent to do to improve.

改良肉牛介紹：主要有西門塔爾牛国产操a在线观看、夏洛來牛、利木贊牛等良種肉牛做父本，以魯西黃牛做母本進(jìn)行雜交改良www.99riav24.com。

When the parent of high photosynthetic production rate is used as female parent, the dominancy of the photosynthetic production rate in F1 is over its parent by 8.8 %, otherwise, used as male parent, by 0.9%.

用高光合生產(chǎn)率親本作母本時(shí)，F(xiàn)_1光合生產(chǎn)率優(yōu)勢超親8.8%对白露脸视频一区二区在线，反交F_1光合生產(chǎn)率優(yōu)勢超親0.9

By determing the photosynthetic production rates in the 46 hybrids and 21 parental inbred lines, the results show that the dominancy of average photosynthetic production rate in F1 is 16.4 %; when the parent of high photosynthetic production rate is used as female parent, the dominancy of the photosynthetic production rate in F1 is over its parent by 8.8 %, otherwise, used as male parent, by 0.9%.

通過對46個(gè)雜種及21親本自交系光合生產(chǎn)率的測定結(jié)果表明：F_1平均光合生產(chǎn)率優(yōu)勢為16.4%日本619视频网站www。用高光合生產(chǎn)率親本作母本時(shí)，F(xiàn)_1光合生產(chǎn)率優(yōu)勢超親8.8%超碰在线最新地址，反交F_1光合生產(chǎn)率優(yōu)勢超親0.9%伊人中文字幕中文无码；母本光合生產(chǎn)率遺傳力，大于父本光合生產(chǎn)率遺傳力11倍日本黄页网。低光合生產(chǎn)率親本的光合生產(chǎn)率遺傳力大于高光合生產(chǎn)率親本光合生產(chǎn)率的遺傳力1.6倍色哟哟一区二区。

Those DNA bands expressed in female parent but not in male parent also expressed in gynogenesis filial; DNA bands expressed in male parent but not in female parent didn抰 express in gynonensis, while normally expressed in dcploid control fish.

證明牙鯽雌核發(fā)育子代的遺傳物質(zhì)來自母本，雌核發(fā)育誘導(dǎo)使用的精子經(jīng)過紫外線滅活后乱伦国产视频，遺傳物質(zhì)己被破壞色在线,com，其攜帶的遺傳信息沒有傳給子代，在DNA水平證明了雌核發(fā)育誘導(dǎo)方法和結(jié)果的可靠性亚洲午夜理伦片。

The conversion boundary of self-incompatibility was researched by sowing by stage. Sunshine of day and temperature was studied critically by investigating leafage and researching traits indoors. The results showed that the daily minimum temperature was the principal factor of affinity conversion and the affinity conversion boundary was 16.5~18.1℃.HE97 was primarily regard as self-incompatible line in this research. The method was by inbreeding and sib HE97, Half the silk of HE97 and Zheng58. Inbreeding and cross have been done simultaneously. The extending condition of pollen tube was observed by dying the silk after pollinating 4 hours. The individuals with pollen tube were observed having seeds, while the individuals without pollen tube were observed having few seeds or no seeds. So this study regard HE97 as sporophytic self-incompatibility .The planting ration of female parent HE97 and male parent 87-1 was 4:1.The nature cross-pollination was studied by the theory of endosperm xenity, the study show that the setting percentage of HE97 was 625%, in which the seed in self was 70% and the seed in hybrid was 30%. This was consistent with the study of silk anatomy structure, then come to the same conclusion: compatible pollen germination and fertilization can stimulate the self-incompatible pollen germination and fertilization in the same corn cob.

通過分期播種黄页网站大全手机在线观看，進(jìn)行了光溫敏自交不親和材料HE97親和性轉(zhuǎn)換區(qū)間的研究，依據(jù)田間跟蹤調(diào)查葉齡及室內(nèi)考種研究了HE97親和性轉(zhuǎn)換區(qū)間的光溫臨界值强奸网址，結(jié)果表明：1日最低溫度是影響HE97自交不親和性的主要原因超碰观看欧美，親和性轉(zhuǎn)換區(qū)間在16.5℃～18.1℃之間。2通過HE97自交和姊妹交以及將HE97與鄭58作為雙親最新国产色，各自的花絲一分為二浮力黄毛片一级播放，分別正反交，授粉后4個(gè)小時(shí)分別取其花絲進(jìn)行固定国产精品久久久厕所偷窥盗摄、染色亚洲综合第三页，觀察花粉管的伸長情況美女黄色网站99，根據(jù)結(jié)實(shí)率與花粉管伸長的對應(yīng)關(guān)系，結(jié)果發(fā)現(xiàn)觀察到花粉管的對應(yīng)植株收獲到了種子激情国产手机视频在线观看，而沒有觀察到花粉管的對應(yīng)植株結(jié)實(shí)率極低或沒有結(jié)實(shí)曰批免费网站播放免费，本研究把HE97初步劃為孢子體自交不親和類型。3以HE97為母本日韩精品爆乳蜜桃视频在线，87-1為父本欧美在线26uuu免费，按4母：1父行比，通過花粉直感效應(yīng)研究天然異交率一级在线免费WWw，結(jié)果母本HE97結(jié)實(shí)良好(62%)国产a黄色，其中自交粒占70%，異交粒占30%黄色网站网址入口，結(jié)合花絲切片觀察表明WWWxxⅹCOM，親和花粉的萌發(fā)及受精會(huì)導(dǎo)致落在同一果穗柱頭上不親和花粉的萌發(fā)不再受抑制。

Changqingwang No.5 is a new early maturing, high yield and disease resistant summer squash F1 hybrid bred by crossing a dark green inbred line A-101, derived from hybrid of France Cuilv and Korea Hanchengzaoshu, as female parent, and white inbred line 03-1, derived from foreign hybrid, as male parent. The plant is strong at late development stage.

以法國翠綠和韓國漢城早熟雜交97碰碰碰人妻无码视频野外，經(jīng)多代自交純合選育的深綠皮自交系（代號A-101）為母本妓女影院视频国产，國外雜交種多代自交分離選出的穩(wěn)定白皮自交系（代號03-1）為父本，育成了早熟豐產(chǎn)抗病的西葫蘆雜交種長青王5號性爱无毒网页。

Both yield and quality of common maize grains are improved by crossing high oil maize as male parent and common maize as female parent due to maize heterosis and xenia.

本文利用高油玉米的花粉直感效應(yīng)及與普通玉米雜交的雜種優(yōu)勢效應(yīng)全国免费黄色网站大全，通過高油玉米與普通玉米雜交改善普通玉米的產(chǎn)量和品質(zhì)。

Parental lines were: female parent 3-2-2 from China, thin-skinned melon, monoecious; male parent TopMark, from USA, thick-skinned and netted melon, andromonoecious; tested parent WI998, from USA, netted melon, gynoecious.

本試驗(yàn)選擇親本材料分別為：母本3-2-2www.99re.com，來自中國最新高清麻豆AV在线播放，薄皮甜瓜，雌雄異花同株材料手机看片人人干日韩不卡z；父本TopMark，來源美國日韩www色在线视频，厚皮網(wǎng)紋甜瓜色玖玖在线，雄全同株材料；檢驗(yàn)親本：WI998亚洲欧美日韩视频一区，來源美國高潮毛片无遮挡高清视频播放，網(wǎng)紋甜瓜，全雌株材料爱情岛亚洲品质自拍网址进入入口。

The results showed that different colour of male parent has no significant difference effect on feather autosexing accuracy rate of filial generation, while different colour of female parent has significant difference effect.

其中日本乱伦精品网，不同羽色類型的公雞與白羽中有大量紅銹羽的母雞交配，后代雛雞自別雌雄準(zhǔn)確率最低（79.3％）影音先锋在线观看资源网；不同羽色類型公雞與純白羽的母本交配超碰av在线免费观看，后代雛雞羽色自別雌雄準(zhǔn)確率最高（93.6％）。

Using plant AT-1found by kenaf breeding research group of institute of bast fiber crops Chinese academy of agricultural sciences in Sanya of Hainan province were used as female parent in crossing with 15-4, 04K1 and then backcrossed four times with male parent in order to select two high sterile male sterility.

利用中國農(nóng)業(yè)科學(xué)院麻類研究所紅麻育種課題組在海南三亞發(fā)現(xiàn)的紅麻不育株AT-1做母本分別與15-4aaaa日韩，04K1做雜交视频黄页大全，再用父本回交4次青草一区二区视频，選育出2個(gè)高度不育的不育系。