马铃薯种间体细胞杂种植株的形态学和农艺性状观察

OBSERVATIONS ON THE MORPHOLOGICAL AND AGRONOMIC CHARACTERS OF INTER-SPECIFIC SOMATIC HYBRID PLANTS IN SOLANUM

对马铃薯双单倍体品系81－15和南美二倍体栽培种Solanumphureja原生质体融合获得的8块愈伤组织再生的15个株系、81－15和二倍体野生种S．chacoense原生质体融合获得的3块愈伤组织再生的10个株系的形态学特征和农艺性状进行了观察。结果表明，杂种植株的多数形态学特征和农艺性状，如分枝型、茎色、叶色、叶形、茎和茎叶绒毛、薯块皮色等呈现双亲的中间型，部分性状，如株型、花色等表现为偏亲性状。杂种植株与其双亲相比，生活力强，生长旺盛，叶片宽，块茎大。

Morphological and agronomic characters of 5 clones regenerated from 8 calli which derived from fused protoplasts between a dihaploid of Solanum tuberosum 81-15 and a South American diploid cultivated species S. phureja, and 10 clones regenerated from 3 calli which derived from fused protoplasts between the 81-15 and a diploid wild species S. chacoense were observed under field conditions. The results showed that the somatic hybrid plants had some morphological and agronomic characters intermediate to the diploid parents including branches shape, stem colour, leaf colour and shape, haring growth on stem and leaf, and tuber colour. Several charcters such as plant shape, flower colour of somatic hybrid plants were similar to one of the parents. The hybrids grew more vigorously and had broader leaves and larger tubers as compared to both parents.