Effect of Plant Population on Bulb Size and Yield of Marketable Bulbs of Onion Varieties during Off Season / S. Shakya in Nepalese Horticulture, v. 10: 1 ([07/25/2015])

Public ISBD [article]  inNepalese Horticulture > v. 10: 1 [07/25/2015] . - 85-94 p. Title : Effect of Plant Population on Bulb Size and Yield of Marketable Bulbs of Onion Varieties during Off Season Material Type: printed text Authors: S. Shakya, Author ; Shakya, S.M., Author ; S. K. Shah, Author ; A. Srivastava, Author Publication Date: 2015 Article on page: 85-94 p. Languages : English (eng) Keywords: Off  season,  onion,  spacing,  varieties Abstract: An experiment was conducted in Sunwal, Nawalparasi district of Nepal to assess the effect of plant population on bulb size and marketable yield of two onion varieties during rainy season of 2008. Two off season varieties of onion as main plot factor viz. Agrifound Dark Red (AFDR) and N-53 and six different plant populations (125, 100, 83.34, 66.67, 50 and 33.34 plants per m2 ) obtained by using different spacings of 10×8, 10×10, 12×10,15×10, 20×10 and 20×15 cm as sub plot factors were used as treatments and laid out in a split plot design with three replications. Marketable bulb yield of AFDR (25.55 mt ha-1 ) was higher than that of N-53 (19.78 mt ha-1 ). Marketable bulb yield was highest at closer spacing of 10×10 cm for both the varieties which was 26.97 mt ha-1 in AFDR and 22.48 mt ha-1 in N-53. The size of the bulbs increased with increase in spacing. The most preferred size of bulb was found to be of diameter between 3.5 to 5 cm whose yield was found highest (2.19 kg/plot) at the closest spacing of 10×8 cm which was not statistically different from that (2.17 kg/plot) at the spacing of 10×10 cm. The most preferred sized bulb yield showed a similar trend of increase as total marketable bulb yield with decrease in spacing. The spacings of 12×10, 10×10 and 10×8 cm produced total marketable bulb yields which were not significantly different from each other. The highest net return of Rs. 5,68,977 per hectare was found at the spacing of 12×10 cm for the variety AFDR. [article] Effect of Plant Population on Bulb Size and Yield of Marketable Bulbs of Onion Varieties during Off Season [printed text] / S. Shakya, Author ; Shakya, S.M., Author ; S. K. Shah, Author ; A. Srivastava, Author . - 2015 . - 85-94 p. Languages : English (eng) in Nepalese Horticulture > v. 10: 1 [07/25/2015] . - 85-94 p. Keywords: Off  season,  onion,  spacing,  varieties Abstract: An experiment was conducted in Sunwal, Nawalparasi district of Nepal to assess the effect of plant population on bulb size and marketable yield of two onion varieties during rainy season of 2008. Two off season varieties of onion as main plot factor viz. Agrifound Dark Red (AFDR) and N-53 and six different plant populations (125, 100, 83.34, 66.67, 50 and 33.34 plants per m2 ) obtained by using different spacings of 10×8, 10×10, 12×10,15×10, 20×10 and 20×15 cm as sub plot factors were used as treatments and laid out in a split plot design with three replications. Marketable bulb yield of AFDR (25.55 mt ha-1 ) was higher than that of N-53 (19.78 mt ha-1 ). Marketable bulb yield was highest at closer spacing of 10×10 cm for both the varieties which was 26.97 mt ha-1 in AFDR and 22.48 mt ha-1 in N-53. The size of the bulbs increased with increase in spacing. The most preferred size of bulb was found to be of diameter between 3.5 to 5 cm whose yield was found highest (2.19 kg/plot) at the closest spacing of 10×8 cm which was not statistically different from that (2.17 kg/plot) at the spacing of 10×10 cm. The most preferred sized bulb yield showed a similar trend of increase as total marketable bulb yield with decrease in spacing. The spacings of 12×10, 10×10 and 10×8 cm produced total marketable bulb yields which were not significantly different from each other. The highest net return of Rs. 5,68,977 per hectare was found at the spacing of 12×10 cm for the variety AFDR.

Response of Seedling Tuber Size and Level of Potash on Growth and Yield of Clonal Progeny of True Potato Seed under Chitwan Condition / K. Atreya in Nepalese Horticulture, v. 8/9 ([07/25/2012])

Public ISBD [article]  inNepalese Horticulture > v. 8/9 [07/25/2012] . - 69-78 p. Title : Response of Seedling Tuber Size and Level of Potash on Growth and Yield of Clonal Progeny of True Potato Seed under Chitwan Condition Material Type: printed text Authors: K. Atreya, Author ; A. Srivastava, Author ; Shakya, S.M., Author ; Shrestha, S.M, Author Publication Date: 2012 Article on page: 69-78 p. Languages : English (eng) Keywords: Seedling  tuber  size,  Level  of  potash,  Clonal  progeny  potato Abstract: A field investigation was carried out during winter season of 2007/08 in the upland of Horticulture Farm of Institute of the Agriculture and Animal Science, Rampur, Chitwan, Nepal to evaluate the effect of seedling tuber size and level of potash on ware potato production of a clonal progeny of hybrid TPS, HPS II/67. The experiment was laid out in a completely randomized block design having two factors with sixteen treatment combinations replicated thrice. The treatment comprised of four seedling tuber size (<5 g, 5-10 g, 10-15 g and >15 g) and four level of potash (30 kg K2O/ha, 60 kg K2O/ha, 90 kg K2O/ha and 120 kg K2O/ha). Different sizes of seedling tuber and level of potash significantly affected emergence, growth, yield and yield attributing characters. Growth parameters like plant height, number of stem per hill, stem diameter, number of leaves per plant were found to be influenced significantly due to variation in seedling tuber size and level of potash. Most of the growth parameters increased with an increase in seeding tuber size and level of potash. An increase in the level of potash increases the crop's resistance power against late blight and also helps in earlier tuber initiation. The highest tuber yield (1.36 kg) per plant was obtained in treatment combination of >15g seedling tuber size and 120kg K2O/ha. Increasing the size of seedling tuber and level of potash increases the yield of different classes of tuber. However, potash is responsible for increasing the tuber size. The maximum tuber yield was obtained when 10-15 g seedling tuber was used as a planting material and 120 kg K2O/ha applied. Similarly, the treatment in combination of 10-15 g seedling tuber size and 120 kg K2O/ha wasfound most effective that gave the highest potato yield (30.03 mt/ha). [article] Response of Seedling Tuber Size and Level of Potash on Growth and Yield of Clonal Progeny of True Potato Seed under Chitwan Condition [printed text] / K. Atreya, Author ; A. Srivastava, Author ; Shakya, S.M., Author ; Shrestha, S.M, Author . - 2012 . - 69-78 p. Languages : English (eng) in Nepalese Horticulture > v. 8/9 [07/25/2012] . - 69-78 p. Keywords: Seedling  tuber  size,  Level  of  potash,  Clonal  progeny  potato Abstract: A field investigation was carried out during winter season of 2007/08 in the upland of Horticulture Farm of Institute of the Agriculture and Animal Science, Rampur, Chitwan, Nepal to evaluate the effect of seedling tuber size and level of potash on ware potato production of a clonal progeny of hybrid TPS, HPS II/67. The experiment was laid out in a completely randomized block design having two factors with sixteen treatment combinations replicated thrice. The treatment comprised of four seedling tuber size (<5 g, 5-10 g, 10-15 g and >15 g) and four level of potash (30 kg K2O/ha, 60 kg K2O/ha, 90 kg K2O/ha and 120 kg K2O/ha). Different sizes of seedling tuber and level of potash significantly affected emergence, growth, yield and yield attributing characters. Growth parameters like plant height, number of stem per hill, stem diameter, number of leaves per plant were found to be influenced significantly due to variation in seedling tuber size and level of potash. Most of the growth parameters increased with an increase in seeding tuber size and level of potash. An increase in the level of potash increases the crop's resistance power against late blight and also helps in earlier tuber initiation. The highest tuber yield (1.36 kg) per plant was obtained in treatment combination of >15g seedling tuber size and 120kg K2O/ha. Increasing the size of seedling tuber and level of potash increases the yield of different classes of tuber. However, potash is responsible for increasing the tuber size. The maximum tuber yield was obtained when 10-15 g seedling tuber was used as a planting material and 120 kg K2O/ha applied. Similarly, the treatment in combination of 10-15 g seedling tuber size and 120 kg K2O/ha wasfound most effective that gave the highest potato yield (30.03 mt/ha).