In this article has been studied the dependence of tree planting density, variety-rootstock combinations and water- resource-saving technologies in providing population our country with fresh fruits obtaining a constant plentiful high-quality harvest. Fruit growing is one most important unique areas agriculture. The growth, development productivity young orchards from seed depend on density see...

‘Hafif Çukurgöbek’ loquat budded on three quince rootstock (BA-29, A, and C) were evaluated in 2018 2019 Hatay, Turkey. Fruit ripening was the earliest BA-29 both years. The highest fruit weight obtained from Quince-C followed by rootstock, Quince-A rootstock. yielded significantly higher values terms of seed number, weight, flesh/seed ratio. rootstocks had similar total soluble solids, while l...

apple scar skin viroid (assvd) is one of the most destructive viroid diseases in pome fruits orchards which can cause significant economic losses. symptoms of this viroid including scaring, distortion and dappling were seen in some apple orchards in east-northern of iran. sampling was carried out from apple and pear orchards. the rna was extracted by silica capture method from leaves. assvd was...

Increasing interest in cryopreservation of dormant buds reveals the need for better understanding of the role of dormancy in cryotolerance. Dormancy stage and low-temperature survival of vegetative apple buds (Malus domestica Borkh.), cultivars 'Sampion' and 'Spartan', collected from orchard were evaluated during three seasons contrasting in temperature and precipitation throughout the arrested...

In high-dimensional data analysis, penalized likelihood estimators are shown to provide superior results in both variable selection and parameter estimation. A new algorithm, APPLE, is proposed for calculating the Approximate Path for Penalized Likelihood Estimators. Both convex penalties (such as LASSO) and folded concave penalties (such as MCP) are considered. APPLE efficiently computes the s...

A superimposed experiment was conducted at Gircha, Chencha district, Southern Ethiopia to determine the effect of four rootstocks on leaf nutrient concentration five apple cultivars. The laid out in a randomized complete block design (RCBD) with three replications. Data concentrations were collected and analyzed using SAS software. Results revealed that scion-rootstock interaction significantly...

Interspecific hybridizations represent one of the apple breeding methods by which a wide variability can be achieved, useful for creating new cultivars. The study of 2190 interspecific hybrids, obtained from 25 combinations among crab apple species (Malus coronaria, M. floribunda, M. niedzwetzkyana, M. zumi, M. prunifolia) and different apple cultivars, points out a large variability of the F1 ...

The use of micropropagated trees has been widely extended, since micropropagation is a convenient technique of vegetative propagation that shows a number of interesting advantages, mainly for woody fruit trees. However, only few studies can be found in the literature on the field performance of micropropagated trees. In this work, the performance of different micropropagated fruit-tree rootstoc...