geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Weeds of cotton fields of southern Uzbekistan in relation to the opening up of new lands


, : Weeds of cotton fields of southern Uzbekistan in relation to the opening up of new lands. Uzbekskii Biologicheskii Zhurnal 23(1): 33-35

In 1966-77, a survey of 371 cotton fields in the south of Uzbekistan revealed 159 weed species from 34 families. Four classes of weeds were distinguished: obligate (segetal); facultative (growing in both cultivated fields and in the wild); ruderal; and volunteer crop plants. There were about 793 550 seeds/ha.

US$29.90


Other references

Sonel Nurettin; Eker Nihal; Sari Ali; Bagci Suat, 2002: Interpretation of Tokaris Field Adiyaman-Mardin group members Adiyaman-Kahta reservoir properties using Elan Plus software. This study has been carried out in 20 km. east of Kahta-Adiyaman in the southern Anatolia region. The log data of some wells in Tokaris field are investigated in order to achieve the petrophysical properties under the software of Elan Plus (Schlum...

Kobayashi, K.; Ito, T.; Hoshino, T., 1986: Correlation between negative staining pattern and hydrophobic residues of collagen. Direct correlation has been demonstrated between primary structure of type 1 collagen molecule and negatively-stained banding pattern of the molecular bundle observed under an electron microscope. Transverse light bands (negatively stained bands)...

Kelland, Lloyd, 2007: N-cadherin: a novel target for cancer therapy?. The cadherins are a superfamily of transmembrane proteins integral to cell-cell adhesion. Increased N-cadherin, usually concomitant with loss of E-cadherin, often occurs during tumor progression as part of the epithelial-mesenchymal transition lar...

Crum, L.A., 1988: Cavitation microjets as a contributory mechanism for renal calculi disintegration in ESWL. The rarefaction shock wave produced by an extracorporeal shockwave lithotripter can result in liquid failure at numerous discrete sites near the second focus. When the liquid fails, vapor-filled cavities can grow to relatively large sizes and subs...

Pei, S.; Minhajuddin, M.; Callahan, K.P.; Balys, M.; Ashton, J.M.; Neering, S.J.; Lagadinou, E.D.; Corbett, C.; Ye, H.; Liesveld, J.L.; O'Dwyer, K.M.; Li, Z.; Shi, L.; Greninger, P.; Settleman, J.; Benes, C.; Hagen, F.K.; Munger, J.; Crooks, P.A.; Becker, M.W.; Jordan, C.T., 2014: Targeting aberrant glutathione metabolism to eradicate human acute myelogenous leukemia cells. The development of strategies to eradicate primary human acute myelogenous leukemia (AML) cells is a major challenge to the leukemia research field. In particular, primitive leukemia cells, often termed leukemia stem cells, are typically refractor...

Silvestri, Fil., 1912: Contribuzione alla conoscenza dei Campodeidae (Thysanura) d'Europa. Portici Bollettino del Laboratorio di Zoologia agr, 6 110-147

Rieppo, K.; Pekkola, P., 2001: Prospects for using harvester-forwarders. Two kinds of harvester-forwarders were studied: two machines based on a prime mover with a rotating cab (Nisula, Pika) and one machine based on a conventional forwarder (Moisio). The study sites involved 1st and 2nd thinning of pure pine stands an...

Meyer, M.; Schuster, K.D.; Schulz, H.; Mohr, M.; Piiper, J., 1990: Alveolar slope and dead space of He and SF6 in dogs: comparison of airway and venous loading. Series (Fowler) dead space (VD) and slope of the alveolar plateau of two inert gases (He and SF6) with similar blood-gas partition coefficients (approximately 0.01) but different diffusivities were analyzed in 10 anesthetized paralyzed mechanicall...

Thoen, E.; Evensen, Øystein.; Skaar, I., 2010: Microwell enumeration of viable Saprolegniaceae in water samples. Existing methods for enumeration of viable Saprolegniaceae propagules in water are laborious, time consuming and prevent examination of large numbers of samples or samples with high spore loads. In the present study a microwell plate (MWP) assay f...

Yao Wei; Duan ZhenZhen; Zhou Hui; H.Z.engQuan; Zhang MuQing; Chen RuKai, 2006: Cloning and sequence analysis of coat protein genes of Sugarcane mosaic virus isolates obtained from Fujian. A fujian isolate of Sugarcane mosaic virus named SCMV-FJ was isolated from infected sugarcane. Cloning and sequence analysis of the coat protein gene of this isolate were carried out. A pair of primers was designed and synthesized based on the nuc...