Five different hybrid tnte potato seed (TPS) families received from the International Potato
Center (CIP), Lima, Peru were evaluated and compared with HPS ll/67 during the spring
season of 2002 and 2003 to see the peifomzance of TPS families for seedling transplanting for
potato production. TPS were raised in the aluminum trays and 32 days old seedlings were
transplamed in the field in randomized complete block design with four replications at
Klwmaltar, LLtlitpur. Nepal (I 360m as/). Survival of the transplanted seedlings in the field was
ranged from 72.77% to 95.84%. Late blight disease buildup in all the families was far low.
Total tuber weight, total tuber numbers and tuber numbers per plant among the TPS families
were significantly different. The ma.timum total tuber weights (2.44 kglm2
), numbers
( 129.53/nl) and ltlbers per plant ( 15.56) was produced by LT 8 x TPS 67. TPS families LT 8 x
TPS I 3 produced significamly highest average per tuber weight (28.59 g). The rested families
gave the average tuber production in the ratio of29:58: 13 of over seed size (>50 g), seed size
(25~50 g) and under size (<25 g) tubers, respectively. The result suggests that the families LT 8
x TPS 67 and MF I x TPS 67 were promising for potato production through seedling
transplanting under Klmmaltar conditions.

Five different hybrid tnte potato seed (TPS) families received from the International Potato
Center (CIP), Lima, Peru were evaluated and compared with HPS ll/67 during the spring
season of 2002 and 2003 to see the peifomzance of TPS families for seedling transplanting for
potato production. TPS were raised in the aluminum trays and 32 days old seedlings were
transplamed in the field in randomized complete block design with four replications at
Klwmaltar, LLtlitpur. Nepal (I 360m as/). Survival of the transplanted seedlings in the field was
ranged from 72.77% to 95.84%. Late blight disease buildup in all the families was far low.
Total tuber weight, total tuber numbers and tuber numbers per plant among the TPS families
were significantly different. The ma.timum total tuber weights (2.44 kglm2
), numbers
( 129.53/nl) and ltlbers per plant ( 15.56) was produced by LT 8 x TPS 67. TPS families LT 8 x
TPS I 3 produced significamly highest average per tuber weight (28.59 g). The rested families
gave the average tuber production in the ratio of29:58: 13 of over seed size (>50 g), seed size
(25~50 g) and under size (<25 g) tubers, respectively. The result suggests that the families LT 8
x TPS 67 and MF I x TPS 67 were promising for potato production through seedling
transplanting under Klmmaltar conditions.