1994, 13(6).
Abstract:以双低、低硫、低芥3种类型的优质甘蓝型油菜品系为亲本,配置了双低×低芥、低硫×双低和低芥×低硫3套不完全双列杂交系统.通过配合力分析,选出了各自的优良亲本和优良组合;重复亲本在各系统中显著性状的一般配合力表现为:效应值方向一致,大小上略有差异,相对位置稳定;当选的优良组合亲本至少有一为优良的,亲本一般配合力效应值与相应组合特殊配合力效应值一致.
1994, 13(6).
Abstract:采自新疆库尔勒香梨树上的1种新害虫,经鉴定为鳞翅目螟蛾科斑螟亚科优斑螟属1新种,其模式标本均保存在北京农业大学昆虫标本室.
Nong Guang , Hu Furong , Zhang Zhongming , Chen Huakui
1994, 13(6).
Abstract:The recombinant plasmids, pNR102, pNR103, pNR108, pNR203,and pNR213, from Rhizobium huakuii strain 7653R (field type), were digested with differrent endonucleases. The cleavage mapping showed that they all contained 1.7 kb and 1.9 kb fragments. The probe
Qin Falan , Zhang Duanping , Lin Xinghua , Xie Yuefeng , Dai Luyuan , Chen Yong ,
1994, 13(6).
Abstract:This research identified the compatible range and compatible ability of 12 Yunnan nuda varieties (Haomei, Haobi, etc) using 11 indica varieties(IR36, etc)and 8 Japonica varieties(Akihikari, etc ) as testers. The main results are as follows: 1) Among the
Lu Hong , Zheng Yonglian , Li Jiansheng , Liu Jiling
1994, 13(6).
Abstract:为有效地利用我甸玉米的种质资源,对选自我国西南地区的27个玉米地方品种和3个美国玉米群体(BSSS、Lancaster和品种综合种)进行了配合力分析。方差分析表明,12个性状在组合间均达到显著或极显著水平。在大多数性状尤其是株高、倒伏率、千粒重和单株产量的基因型方差中,一般配合力方差占的比例较高。白瘦地根、大子白、花六十早和六十早等几个地方品种具有较好的农艺性状和产量一般配合力,是组建基础群体的重
Zeng Dongfang , Liu Erming , Wang Shiming , Yang Qionghua , Duan Yongjia
1994, 13(6).
Abstract:Seven rice cultivars, Diannong 1,282, Liuyun 1, Han 'gu,Chujing 4, Chujing 5 and Hongza 141 from Yunnan province of China were divided into 3 groups according to their resistance to blast. Allelism test was conducted between Chinese cultivars and Japanese
Cheng Guoying , Su Qingshi , Cai Fuming , He Zhenwu
1994, 13(6).
Abstract:从湖北8个地区46个县市广泛采样分离纯化获得208个稻白叶枯病菌株,按国内统一标准进行致病力的鉴定,结果表明:湖北省当前稻白叶枯病菌致病性的分化,主要表现为以强弱数量变化为主的0、Ⅰ、Ⅱ、Ⅲ和Ⅳ致病型,其中第Ⅳ致病型是流行优势致病型。按行政区域以及按水稻的种植区划,比较稻白叶枯病菌致病型分化情况,表明不同区域各致病型的流行强度不一致。强毒力的第Ⅳ致病型菌的多少,与水稻的复种指数关系不大,而同稻区土
Yang Changju , Yang Zhihui , Zou Mao , Hu Jianfang , Den Wangxi
1994, 13(6).
Abstract:A study was made on the repellent action of Sitophilus zeamais Motschulky, Tribolium castaneum (Herbst ),Callosobruchus chinensis L.with four easily-got traditional chinese medicinal herbs and medicines, perfume and edible oil, respectively. The results s
Chen Wenli , Li Fudi , Zhou Junchu , Wang Fushen
1994, 13(6).
Abstract:从湖北省洪湖市土壤中分离纯化了92株快生型大豆根瘤菌。用来自8个取样地点的12个快生型典型菌株和1个慢生型菌株的抗血清检测了该快生型大豆根瘤菌群体的抗原构成。其中65株菌归入15个血清型,20.7%属于USDA205型,15.2%为Ad301(1)型。有27株不与已知抗血清反应,为未知的血清型。对供试菌株质粒进行的快速检测结果表明,各菌株均含有2~6个质粒,其中最大的质粒在500Md左右。含4个质
Yao Langqun , Yu Yanhu , Qi Desheng
1994, 13(6).
Abstract:有60只断乳SD大白鼠(♀),随机分成对照组和5个实验组,每组10只。各组分别自由饮用添加有0、0、0、150、150、150mg/L氟化钠的水,分别采食添加有0、25、100、0、25、100mg/kg钼酸铵的日粮。实验观察3个月。结果表明,实验第3组大白鼠临床上出现典型的氟斑牙,血清F,骨灰F和肝Cu含量升高,骨灰Cu含量下降;骨骼弯曲强度呈现降低的趋势。实验第5组大白鼠骨骼、肾等组织Cu含量
Yu Chuanzhou , Yu Mei , Long Liangqi
1994, 13(6).
Abstract:The present studies on sex determination, differentiation, and control in fowls show that the mechanism of sex determination in fowls is not completely clear.There is argument about the autosome/Z chromosome balance theory in addition to the sex chromoso
Zhang Xunpu , Gong Shiyuan , Wu Yuxuan , Zhang Jianwei
1994, 13(6).
Abstract:对淤泥湖近太湖新银鱼和寡齿新银鱼卵巢组织学研究的结果表明:这两种新银鱼的卵巢发育基本上相同。均属分批产卵类型;只有一个春夏季繁殖群体;当年6月至翌年1月卵巢处于Ⅱ、Ⅲ期,翌年2月末发育到第Ⅳ期;3至5月为生殖期。
Gong Shiyuan , Zhang Xunpu , Zhang Jianwei
1994, 13(6).
Abstract:用电镜观察淤泥湖的近太湖新银鱼第Ⅳ时相、第Ⅴ时相的卵母细胞和受精卵的卵细胞粘丝的出现时相;卵细胞粘丝的外部形态特征;并讨论了卵细胞粘丝的功能。
Chen Changfu , Shi Weizhou , Ji Guoliang , Zhao Guizen
1994, 13(6).
Abstract:将酚灭活的点状气单胞菌和柱状屈桡杆菌菌苗按不同比例制备成二联菌苗,注射接种草鱼后,通过检测受免草鱼血清中的凝集抗体效价和攻毒试验,初步证明了由这两种菌制备的酚灭活菌苗,可刺激草鱼产生良好的免疫反应,免疫保护力达到56.0%~73.0%。
1994, 13(6).
Abstract:Six species obtained from South Lake, Wuhan, Hubei Province were new recorded in China, They were Tanypodinae: Procladius(Psilotanypus)bellus (Loew ), Orthocladiinae: Chaetocladius sp. , Chironominae: Thienemaniola ploenesis Kieffer, Kiefferulus tendipedi
Liu Ming , Li Shurui , Ni Guoyu
1994, 13(6).
Abstract:为了对湖北省农业干旱作出客观而科学的评价,本文从农业生产实际情况出发,用“条件”水分平衡方法,提出了一个综合考虑水分盈亏和同期作物需水量的农业干旱指标I0(P-Ep)/Q,并用此指标分析了湖北省近30年来主要干旱类型的时空分布特征及对农业生产的影响,同时结合各地各种类型各级干旱出现频次进行了农业干旱分区。
1994, 13(6).
Abstract:Crops germplasm improvement and genetic breeding are two very important research fields in agricultural production development.This paper reviewed the main research achievements obtained in China since 1949 in crops germplasm improvement and genetic breed
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