广西南部陆地棉和海岛棉的杂种优势利用

利用广西南部充足的光热资源,为陆海杂交种的选育及其宿生栽培利用提供参考。研究陆地棉和海岛棉及种间杂种的主要性状表现,并对一、二年生海岛棉及陆海杂种的主要性状进行比较。结果表明:(1)相对陆地棉和海岛棉亲本,陆海杂种具有出苗率较高、生长速率较快、植株比较粗壮的特点,生育期长于陆地棉而短于海岛棉,且其产量较高、品质较好;(2)二年生与一年生棉花相比,皮棉产量增高64.97%～94.11%;而纤维品质均无显著差异。因此,陆海杂种及其宿生栽培在广西南部具有良好的应用前景。

From the History of Formation Uzbek Oral-Professional Music

First features of formation of oral-professional genres in the territory of Uzbekistan were known from ancient time. Examples of preserving wall painting, small statues with musicians images evidence that professionalism was taken place in the early of 1 st millennium. Dastan, Katta Ashula, Makom are the main oral-professional genres of the Uzbeks. History facts are in the paper.