Performance of Different Size True Potato Seed Seedling Tubers at Khumaltar

Abstract

A field study was carried out at Khumaltar-Lalitpur, during 2002-2004 to evaluate and compare the performance of different sizes of seedling tubers (1-5 g, 5-10 g, 10-20 g and 20-40 g) of true potato seed (TPS) with whole and half cut seed tubers of Desiree of 20-40 g size at 60-25-cm spacing. Percent emergence, plant height, ground cover by foliage, stems/plant, number of tubers per plant, marketable and total yields were significantly increased with the increase in seedling tubers weight as compared to whole and half cut seed tubers of Desiree. Late blight (Phytophthora infestans L.) disease was quite low in the TPS crops than Desiree. Both whole and half cut seed tubers of Desiree produced significantly higher average per tuber weight. Uniformity of the tubers harvested from different sizes of seedling tubers was statistically similar and tubers from Desiree were statistically uniform as compared to seedling tubers. The three years result suggests that more than 1 g size seedling tubers can be successfully used for potato production as from the seed tubers of any standard variety.

Propagation Methods of Selected Horticultural Crops by Specialized Organs: Review

“…Potato can be planted directly as whole or divided to smaller parts of tuber which have a bud at the node for shoot development. According to the findings, planting different size of potato tubers has a direct effect on potato yields [10]. They concluded that the larger size and whole/half cut of potato tuber produces the higher tuber yields and are less susceptible to late blight potato disease as compared to the smaller size of the tubers…”

Effect of Seed Tuber Piece Size and The Number of Eyes on Growth and Yield of Potato (Solanum tuberosum L.) تأثير حجم و عدد العيون فى درنات التقاوى على نمو و محصول البطاطس Solanum tuberosum L.

“…Though potato plants could be raised from a piece of a tuber that has been cut into pieces with at least one eye containing three buds (Beattie, 2010), research shows that larger seed pieces result in more total yield than smaller ones (Adhikari, 2005;De Almeida et al, 2016, Ibrahim et al, 2018, Webster et al, 2018. Nevertheless, cultivation of large seed tuber pieces not only increase yield, but also increase production cost, sometimes, to the extent that net income becomes negative.…”

Interactive Effects of Vermicompost and Seed Tuber Size On the Production of Potato (Solanum Tuberosum L.)

“…It was observed that plants from smaller seedling tubers mature later than the larger. This may explain the average tuber weight differences between plants from the different seedling tuber size (Adhikari 2005). It may be said that the higher doses of vermicompost have been increased the stored product as dry matter in tuber through photosynthesis resulted in higher average weight than the control.…”

“…Marketable tuber yield increase due to vermicompost at higher levels may be associated with the increment of total tuber yield and also due to the increment of the proportion of large tuber yield percentage. Seedling tuber 20 -40 g size produced the highest marketable yield (27.14 t/ha) (Adhikari 2005).…”

“…The number of main stems/plant has a positive bearing on number of tubers/plant. TPS seedling tubers have a tendency to produce a greater number of tubers/plant (Adhikari 2005). Harsharin et al (1983) have reported that the number of tubers/plant increased by increasing the size of seed tubers from 25 -35 to 35 -45 and 45 -55 mm.…”