Ginger (Zingiber officinale Rosc.) in South Eastern Nigeria. II. The field response of the uncoated ginger Yatsun-biri for rapid seed ginger production

Sett weights (9, 7, 5 and 3 g) were assessed for rapid seed ginger (Zingiber officinale) multiplication at varying intra-rows (20, 15 and 10 em) at two locations in South Eastern Nigeria. Establishment counts increased with larger setts but sowing off-sized setts (~ 3 g) offers potential for rapid seed harvest and multiplication ratio. Close planting (10 cm within-row spacing) and larger setts produced significantly higher yields of rhizomes but not seed harvest multiplication ratio. &nbsp

Ginger (Zingiber officinale Rosc.) in South Eastern Nigeria. II. The field response of the uncoated ginger Yatsun-biri for rapid seed ginger production

Sett weights (9, 7, 5 and 3 g) were assessed for rapid seed ginger (Zingiber officinale) multiplication at varying intra-rows (20, 15 and 10 em) at two locations in South Eastern Nigeria. Establishment counts increased with larger setts but sowing off-sized setts (~ 3 g) offers potential for rapid seed harvest and multiplication ratio. Close planting (10 cm within-row spacing) and larger setts produced significantly higher yields of rhizomes but not seed harvest multiplication ratio. &nbsp

Quality Changes and Freezing Time Prediction During Freezing and Thawing of Ginger

Effects of different freezing rates and four different thawing methods on chemical composition, microstructure, and color of ginger were investigated. Computer simulation for predicting the freezing time of cylindrical ginger for two different freezing methods (slow and fast) was done using ANSYS® Multiphysics. Different freezing rates (slow and fast) and thawing methods significantly (P \u3c 0.05) affected the color and composition of essential oil in ginger. Fresh ginger was found to contain 3.60% gingerol and 18.30% zingerone. A maximum yield of 7.43% gingerol was obtained when slow frozen gingers when thawed by infrared method. Maximum zingerone content of 38.30% was achieved by thawing slow frozen gingers using infrared-microwave method. Microscopic examination revealed that structural damage was more pronounced in slow frozen gingers than fast frozen gingers. Simulated freezing curves were in good agreement with experimental measurements (r = 0.97 for slow freezing and r = 0.92 for fast freezing). Slow freezing damaged ginger’s cellular structure. Data obtained will be helpful in selecting appropriate thawing method to increase desirable essential oil components in ginger. Computer simulation for predicting freezing time may help in developing proper storage system of ginger

Influence of decreasing minisett weight and intra-row spacing on the coated ginger cv Taffin-giwa

The influence of varying minisett weights, intra-row spacing, sites and weather on yield of the ginger cv. Taffin giwa is discussed. Yield of fresh ginger at increasing miniseH weights has the same effects as decreasing intra-row spacing, both factors ihversely related to seed harvest multiplication ratio. Off-shoots (seed pieces = 3g) are potential setts. Using reduced minisetts stimulates complete hamessing of food reserve in mother setts during crop growth. The level of sunshine and heat radiation during crop growth and drastiderratic changes in ambient soil temperature in the tuberous stem deposition zone cause significant (< 30%) yield losses. &nbsp