玉米品种的筛选及耐瘠性状研究

被引量 : 7次 | 上传用户:wangxinyu999
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
本课题采取与生产相近的条件,通过对贵州地区广泛种植的具有较好耐瘠高产特性的玉米杂交品种,选取中低肥力土和高肥力土进行对比筛选,初步获得以下研究结果:1.供试品种中,遵义8号、农大108、黔单16、登海3号四个品种在高肥力和低肥力两种土壤环境中的表现比较好,适应能力强,适应范围广,是适合在肥力不均匀地块种植的优良品种。适宜在黔中地区推广。2.表现较好的品种前期植株地上地下部分长势都强于表现较差的品种,具有较强的适应能力,为高产打下了坚实的基础。在低肥力土上根系体积、根重、根数以及地
其他文献
Aim: To investigate the anticancer effects and molecular mechanism of artonin B on the human acute lymphoblastic leukemia CCRF-CEM cells compared with other pre
Aim: To investigate the effects of Sonic hedgehog (shh) protein on bone marrowderived endothelial progenitor cells (BM-EPC) proliferation, migration and vascula
Aim: To study the pharmacokinetics and accumulation of an Escherichia coliexpressed His-tag fused recombinant human endostatin (rh-endostatin) in Rhesus monkeys
1.以甘蓝型油菜品种浙双758、浙双6号为材料,研究紫外线(UV)、甲基磺酸乙酯(EMS)和叠氮化钠(NaN_3)以及除草剂丙酯草醚不同浓度和时间处理子叶外植体后对植株再生的影响。试验结果表明,低剂量UV处理子叶外植体后对植株再生有一定的促进作用,随着照射时间的延长,愈伤组织诱导率和植株再生率逐渐升高。当诱变时间达120 sec和60 Sec时,两品种的愈伤组织诱导率和植株再生率分别达到最高值,显
有关花生生长发育最佳温度范围已有不少研究报道。考克思1979年报道,在控制条件下,昼/夜温度30/26为营养生长的最佳温度;Fortanier、E. J. 1957年报道其营养生长的最佳温度为
Aim: To determine the frequencies of polymorphism and haplotype in the transforming growth factor-beta 1 (TGF-β1) gene promoter in the Chinese population and t
This paper deals with the problem of singular linear quadratic performance with the worst-disturbance rejection for descriptor systems. Under the conditions we
In order to ensure stable,correct and real-time high-speed transmission of indoor visible light communication(VLC),the key modulation and demodulation technolog
Aim: To study effects of arachidonic acid (AA) and its metabolites on the hyposmotic membrane stretch-induced increase in calcium-activated potassium currents (
Aim: To study the anticancer activity of sodium caffeate (SC). Methods: A nucleoside transport assay was used to analyze the inhibitory effects of SC on nucleos