Journal of Agriculture & Horticulture

COMPARATIVE ASSESSMENT OF BIOLOGICAL COMPETENCE AND ECONOMIC EFFICIENCY OF PEACH (PRUNUS PERSICA [L.] BATSCH) VARIETY-ROOTSTOCK COMBINATIONS IN UZBEKISTAN CONDITIONS

Mirnosir Isroilov, Ixtiyor Namozov — Tue, 13 Jan 2026 00:00:00 +0000

The optimization of scion-rootstock interactions is a fundamental determinant of productivity in modern pomology. This study presents a multi-criteria evaluation of four peach rootstocks (Peach seedling, Almond seedling, GF677, Garnem) and five peach varieties (Big Bang, Lola, Krasniy Moskva, Anjir shaftoli, Nektarin krasniy) cultivated under specific pedoclimatic conditions. Utilizing a biometric scoring system, we analyzed growth vigor, stress tolerance (drought and heat), compatibility, and yield parameters. The results demonstrate that the clonal rootstock GF677 exhibits superior adaptability, achieving the highest mean general characteristic score (4.5/5.0), significantly outperforming generative rootstocks. Among the cultivars, ‘Anjir shaftoli’ and ‘Big Bang’ displayed the highest yield potential (4.8/5.0). Furthermore, the study identifies specific high-value combinations, with ‘Anjir shaftoli’ grafted on GF677 achieving the highest generalized assessment score (9.10/10), classifying it within the elite Group I of variety-rootstock combinations. These findings provide a scientific basis for recommending specific vegetative rootstocks for establishing high-density, stress-resilient peach orchards.

SEED PRODUCTIVITY AND SOWING QUALITIES OF MONARDA (MONARDA L.) VARIETY SAMPLES IN SOUTHERN UZBEKISTAN

Khazratkulova Mahbuba Juraevna, Aramov Muzafar Khoshimovich — Tue, 13 Jan 2026 00:00:00 +0000

The article presents the results of studies on the morphobiological characteristics, seed productivity, and sowing qualities of seeds of Monarda (Monarda L.) variety samples under the southern conditions of Uzbekistan. During the research, the developmental phases of the variety samples, plant height, number of branches, green and dry biomass yield, as well as seed productivity and sowing qualities were evaluated. According to the obtained results, seed germination in all variety s exceeded standard requirements, with the highest values recorded for the Limonniy aromat variety . This variety was identified as promising in terms of both seed productivity and seed quality. The research findings demonstrate the feasibility of introducing Monarda under the southern conditions of Uzbekistan and cultivating it for seed production.

ACCLIMATIZATION OF FATINIA AND KALINA PLANTS MICROCLONALLY PROPAGATED IN VITRO TO EX VITRO CONDITIONS

Tue, 13 Jan 2026 00:00:00 +0000

This study investigated the vegetative development and open-field acclimatization of Fatinia (Physocarpus opulifolius) and Kalina (Viburnum spp.) plants after in vitro propagation and subsequent transplantation into various substrates under greenhouse conditions. Five different substrate mixtures (peat:perlite, peat:biogumus, peat:perlite:sand, soil:biogumus, and soil:peat:biogumus) were tested, and key vegetative parameters such as root number, plant height, and number of leaves were analyzed under each condition. In addition, the growth dynamics of the plants were monitored at 10-day intervals over a 40-day period during the gradual acclimatization to open-field conditions. The results demonstrated that the peat:perlite:sand (1:1:1) substrate was the most effective medium for both species, providing significantly higher root formation, vegetative biomass growth, and leaf production compared with the other substrates. In Fatinia, the number of roots reached 8.3 and stem length increased to 34.8 cm within four weeks, whereas in Kalina these values were 7.5 roots and 29.8 cm, respectively. Vegetative development under greenhouse conditions was stable, and the plants exhibited a high level of adaptability to the open environment.

OPTIMIZATION OF MICROCLONAL PROPAGATION METHODS OF JUGLANS REGIA L.

Khaydarov Ilyos Abdurashitovich, Allayorov Abdurakhmon Nazaraliyevich — Tue, 13 Jan 2026 00:00:00 +0000

This scientific article shows that, in the propagation of Juglans regia L., the composition of the culture medium is the main source of variability in the proliferation process. Regardless of the genotype used, the growth of microshoots was better in DKW medium than in MS medium. The results indicate that growth occurred mainly due to the elongation of internodes rather than an increase in the number of nodes. In addition, the size of calli formed on DKW medium was larger than those on MS medium. Values in each column are presented as mean ± standard error (SE). n = 20; mean values of explant shoots marked with different letters differ significantly at P < 0.05.