Effect of Some Treatments on Improving Seed Multiplication Ratio in Potato by Stem Cutting

Abstract

A procedure for rapid multiplication technique of potato using stem cuttings induced to grow at the leaf nodes by removal the apical growing point is described. Sequential five experiments were conducted in the greenhouses and in the field of a private farm (Nubaria district, Bahaira Governorate, Egypt), during the period from 2012 to 2015. In the first experiment, the number of stem cuttings in the different tested cultivars ranged from 16.25 (cv. Patrones) to 38.50 (cv. Spunta). In the second experiment, the rooting hormone K-IBA improved root initiation and development of Spunta cv. and increased survival, root dry weight and quality, additionally had the highest values of tuber yield. The rate of multiplication was 400: 1 against 9: 1 for the conventional method. In the third experiment, a rooting substrate of sand: peat (1:1) enhanced survival, improved growth, yield attributes and M.R. In the fourth experiment, incidence of common potato viruses (PVX, PVY, PLRV and TRV) was negative in second generation of tubers when stem cutting technique was used. In the field study of the fifth experiment, the tuber yields and quality with rooted cuttings were statistically similar for crops from imported seed tubers, however, the proportion of marketable tubers (> 60 mm diameter) was approximately 59% and 50% less in the crops from rooted cutting and tubers from stem cutting, respectively, compared with those from imported seed tubers. Rooted stem cuttings gave the highest net profit. These results indicate that the stem cuttings and small tuber derived from stem cutting are two methods of growing potatoes, which need to be further evaluated for socioeconomic assessment by farmers.

Effect of Explant Age and Applied IBA on Growth and Rooting of Apical Stem Cuttings of Potato for Early Generation Seed Potato Production

“…This implies that treating stem cuttings with IBA can not only increase the rooting percentage but also root initiation and the number of roots. Various research experiments have confirmed that the application of optimal hormone concentration is very important for the successful rooting of cuttings [25,26]. IBA treatment of stem cuttings may cause cambial activity that resulted in root induction and ultimately an increase in the number of roots per cutting.…”

Influence of seed rate and row spacing on seed multiplication factor and yield of durum wheat in Ethiopia

“…Seed multiplication factor refers to the ratio of seed yield after cleaning per hectare to the seed rate. Its association with seed yield and its improvement by seed treatment has been observed for chickpea (Xalxo et al., 2007) and potato (Ezzat, 2016), as well as by time of planting and fertilizer application for maize (Ibrahim, 2010).…”

Evaluation of Potato Varieties Rooted Shoot Tip Cuttings as Influenced by IBA Growth Regulator for Transplant Survival and Tuber Production in Northwestern Ethiopia

“…Yasser et al ( 2018) reported that the application of 6000 ppm of IBA gave best growth and yield of potato. Ezzat (2016) reported that stem-cutting evaluation of seven potato cultivars showed signi cant variation among the cultivars, and the Spunta cultivar had the highest transplant survival, establishment, and tuber yield among the seven cultivars. Thus, the objective of the study was to assess the rooting of potato varieties for transplant survival, establishment, and tuber production at eld condition.…”