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A field experiment was conducted for two consecutive years 2018-19 and 2019-20 with high bulking early potato cultivar Kufri Khyati at Central Potato Research Institute, RS, Gwalior in split plot design with six planting geometries as main plots viz S1-60v20 cm (Control), S2-66v15 cm, S3-66v20 cm, S4-75 v15 cm, S5-75v20 cm and S6-paired row and three haulm killing dates as sub plots viz 70, 80 and 90 days after planting. For growth parameters, only planting geometry 66v15 cm recorded significantly higher plant height (52.6 cm) over other planting geometries.75v15 cm (52.6) and 75v20 cm (50.2) planting geometry recorded non significant but higher compound leaves/plant over other plant geometries. Days to haulm killing did not influence the growth parameters viz, stem, compound leaves and plant height. Significant increasing trend was recorded for number and weight of seed size and total tubers with increasing planting geometry over wider plant geometry 75v20 cm (285 thousand/ha, 17.41 t/ha seed size tuber and 671 thousand/ha, 34.52 t/ha for total tuber) and highest was recorded in paired row planting (487 thousand/ha, 29.52 t/ha seed size tuber and 1040 thousand/ha, 45.93 t/ha total tuber). Paired row planting with 70 days of haulm killing recorded significantly highest seed size (516 thousand/ha) and total tuber number (1092 thousand/ha). By number 60v20 cm planting geometry at 80 days of haulm killing (51.15% and 0.957) and by weight paired row planting at 70 days of haulm killing (73.15% and 0.367) recorded significantly highest seed size tubers percent and best seed: non seed ratio over other factor combinations. Planting geometry 66v15 cm at 80 days haulm killing (11.3) and 75v15 cm at 90 days of haulm killing (11.7) recorded significantly highest seed multiplication rate by number and weight respectively. Paired row planting with 70 days haulm killing gave highest seed size tuber yield, per cent seed size tuber and best seed: non seed ratio but planting geometry with 66v20 cm and haulm killing at 70 days found to be economically viable option for the farmers with higher B:C ratio (1.75) for seed production of variety Kufri Khyati. [ABSTRACT FROM AUTHOR]

Use of poor quality seed has been envisaged as one of the major causes of low productivity of potato in India. Keeping these facts under consideration, a trial on raising the quality seed potatoes using "Seed Plot Technique" was taken up at five locations in the Lucknow district of Uttar Pradesh, India involving a small group of farmers cultivating potato as cash crop. The complete package under "Seed Plot Technique" was assessed and capacity building interventions were also implemented. Performance of "Seed Plot Technique was compared with the conventional/ commonly followed practices of seed potato production in the region. Technical and socio-psychological impact as well as the sustainability of this technique was ascertained on the established indicators. Results showed that Seed Plot Technique was highly effective in improving the quality of seed potatoes as it reduced the aphid population by 73.7 to 74.1%, white fly population by 68.1 to 86.9%, and mosaic incidence by 71.0 to 75.8.0%, besides, achieving bumper crop yield with an increase of 10.3 to 16.3% over the conventional system). The technique was also found to be cost effective with higher B: C ratio of 2.6 and sustainable score (80) over the conventional system (B: C ratio=2.0; score 53). These, findings have wider implication for establishment of replicable and remunerative agri-business model of commercial seed potato production at the farmer's level in the plains of Uttar Pradesh using the innovative seed plot technique. [ABSTRACT FROM AUTHOR]

The study conducted at ICAR-Central Potato Research Institute, Regional Station Gwalior over a six-year period from 2017-18 to 2022-23 aimed to evaluate the performance of 17 popular potato varieties. These varieties were divided into early maturing and medium maturing categories. The study focused on various yield attributes and health parameters of these potato varieties, with a particular emphasis on breeder seed production. The emergence percentage ranged from 85% to 99%, indicating that different varieties had varying rates of successful sprouting and growth. Health status of the varieties was found sound. Variability was observed among varieties for yield attributing parameters and Kufri Neelkanth emerged as the top-performing variety in the study. It displayed the highest seed yield per square meter (3.31 kg), the highest number of tubers per square meter (231), and the largest mean seed weight (25.1 grams). Additionally, it had a significant seed multiplication ratio (SMR) by both number (6.9) and weight (25.1). [ABSTRACT FROM AUTHOR]

Aeroponic is well established technology for more efficient and high quality seed potato production. An experiment was carried out at Central Potato Research Institute, Regional Station, Gwalior (MP) to find out the suitable method of planting and irrigation for further multiplication of aeroponic minitubers under net house conditions with six treatment combinations. Aeroponic minitubers of two popular potato variety of the region viz Kufri Lauvkar and Kufri Surya were planted with two types of seed beds viz flat bed and ridge and furrow with 30 cm v 10 cm spacing in which sprinkler and furrow irrigation method was applied. Among planting beds, significantly higher emergence% was recorded in ridge and furrow planting (87.22) over flatbed planting method (83.89). Weight of tubers was significantly higher in sprinkler irrigation (105.7 q/ha), ridge and furrow planting (107.8 q/ha) and variety Kufri Lauvkar (114.1q/ha) over furrow irrigation (98.3 q/ha), flat bed planting (96.2 q/ha) and variety Kufri Surya (89.8 q/ha) respectively. Significantly higher seed size (40-80g) tubers were recorded in sprinkler irrigation method (3% by number and 12.6% by weight) and variety Kufri Lauvkar (3.6% by number and 17.6% by weight) over furrow irrigation and Kufri Surya. Therefore, for higher production, minituber multiplication should be done in ridge and furrow method of planting with sprinkler irrigation under North-Central conditions of India. [ABSTRACT FROM AUTHOR]

This experiment was performed to investigate the effect of environmental conditions (controlled and natural indoor environment) and harvesting period on sprouting behavior of aeroponic minitubers of seven potato varieties. Data was collected on weight loss percentage, sprouting percentage and emergence percentages for all varieties and treatments. The weight loss percentage in open environment was 20.82 percent which was 203.06 percent higher than controlled environment (6.87%). Highest weight loss was observed in Kufri Badshah (21.58%) followed by Kufri Pukhraj (16.09%) whereas; minimum weight loss was recorded in Kufri Himalini (7.94%). On the other hand, sprouting and emergence percentages were significantly high under controlled temperature conditions as compared to natural indoor conditions. After 30 days of keeping for sprouting in different environments highest sprouting percent was recorded in variety Kufri Himalini (90.93%) followed by Kufri Chipsona-1 (86.67%). Minitubers harvested in the month of February recorded higher sprouting percent (98.84%) as compared to March (84.46%) and April (65.16%) harvested mini-tubers. [ABSTRACT FROM AUTHOR]

The article evaluates micro-plants hardening on aeroponic potato seed production in Bangladesh, and also discusses its impact on its economics.