MORPHOLOGICAL DIVERSITY OF Ipomea batatas (L.) Lamb. LEAVES CROSSED BETWEEN ANTIN 2 AND BETA 2
Sulistiono1*, Ida Rahmawati1, Poppy Rahmatika Primandiri1,3, Budhi Utami1, Mumun Nurmilawati2, and Agus Muji Santoso1,3

1 Pendidikan Biologi, Universitas Nusantara PGRI Kediri,
2 PGSD Universitas Nusantara PGRI Kediri,
3 Pusat Studi Biodiversitas, Universitas Nusantara PGRI Kediri

Abstract

Sweet potato has high genetic diversity. Analysis of genetic diversity based on phenotypic traits plays an important role in plant breeding. This study aims to describe the diversity of morphological structure of sweet potato leaves resulting from crosses between Antin 2 and Beta 2 accessions. The study was conducted in an observational, non-experimental manner on 40 individual plants resulting from crosses of sweet potatoes from the two accessions. The characters observed were young leaf colour, leaf shape, leaf edge, number of angles of leaf edge incisions, leaf vein colour, and number of primary leaf veins. The results of the study revealed that there were variations in the morphological characters of the leaves on the sweet potato crosses of Antin 2 and Beta 2. The colour of the young leaves varied, namely light green and green to purple, respectively 31 and 9 individuals- The second variation is the shape of the leaves, namely round and triangular, respectively 16 and 24 individuals. Other characters are flat leaf edges, finger grooved, finger-sharp and pointed respectively are 12, 11, 4 and 13 individuals- The number of angles varies, namely 6, 5, 4, 3 and 0, respectively 2, 14, 2, 4 and 18. The colour of the veins is also different, namely green and purple, respectively 26 and 14. As well as variations in the number of primary veins, numbering 5 , 6, 7 and 9 respectively 1, 6, 20 and 13.

Keywords: Ipomoea batatas, morphology, plant breeding

Topic: Biology