<![CDATA[AbstractSweet potato is one of the secondary crops which is mainly used as a source of carbohydrates and contains of some minerals and vitamin. Tuber weight and tuber shape are important characters of sweet potato related to market orientation, and tuber formation is related to difficulty in harvesting by manual tools. Evaluation of sweet potato germplasm was conducted in Pacet, Cianjur, West Java during the year of 2001. Fifty accessions of sweet potato were measured their tuber characteristics five and half month after planting, and found that they have large variability on them. Several accessions had small, medium, and large tuber. There were no correlation between tuber shape, tuber formation, and the variability of tuber weight, tuber number, yields of sweet potato.AbstrakUbi jalar sebagai salah satu palawija berperan penting sebagai sumber karbohidrat, vitamin, dan mineral. Bobot dan bentuk umbi merupakan karakter penting ubi jalar karena berkaitan dengan pemasaran, sedangkan formasi umbi berkaitan dengan kemudahan pemanenan. Evaluasi terhadap 50 plasma nutfah ubi jalar telah dilakukan di Pacet, Cianjur, Jawa Barat, pada MT 2001. Hasil pengamatan menunjukkan adanya keragaman yang cukup besar dari plasma nutfah yang diteliti. Beberapa aksesi memiliki umbi berukuran kecil, sedang, dan besar. Tidak ada hubungan antara bentuk, formasi umbi dengan keragaman bobot, jumlah, dan hasil ubi jalar.]]>
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