Research Papers/Topics in Horticulture

Genotype × Environment Interaction Studies On The Performance, Adaptability And Stability Of Pre- Release Flue-Cured Tobacco Hybrid Lines In Zimbabwe

ABSTRACT The nature and magnitude of the genotype × environment interactions is important to identify superior and stable genotypes under target environments. This will assist to maximize specific adaptation and to speed up the distribution of new cultivars to growers. Eleven prerelease flue cured tobacco hybrid lines were evaluated for yield and quality in four different tobacco growing regions thus, Kutsaga and Rusape representing the slow growing areas, Trelawney representing the...

SCREENING FOR DISEASE AND ROOTKNOT (Meloidogyne Javanica) RESISTANCE ON LOCAL TOBACCO LANDRACES (Nicotiana Tabacum L.)

ABSTRACTThirty local tobacco landraces collected from non-traditional tobacco belt of Zimbabwe, such as Binga, Mutoko and Masvingo were screened for resistance against Tobacco Mosaic Virus (TMV), Potato Virus Y (PVY) and rootknot nematodes (RKN). The thrust of the study was to assess the level of resistance of the landraces to these major diseases of economic importance in tobacco. A standard flue cured tobacco (FCT) variety KE1, which is susceptible to all tobacco diseases was used as a posi...

EFFECT OF CUTTING POSITION AND VINE PRUNING LEVEL ON GROWTH AND YIELD OF SWEET POTATO (Ipomoea Batatas L.).

ABSTRACTThere is yawning variation in yield of storage roots and vines of sweet potato (Ipomoea batatas) among farmers due to the use of different cutting positions and pruning of vines at different levels. Therefore, the aim of this study was to establish the cutting position and the vine pruning level that give the highest yield of both the storage roots and vines. Determination of storage root length, central storage root diameter, storage root weight and vine weight among different cuttin...