scholarly journals STUDY OF MUTANT BREAKER VARIETIES ACCORDING TO THE BASIC ECONOMIC-VALUABLE SIGNS UNDER THE CONDITIONS OF KARAKALPAKSTAN

Author(s):  
Aytjanov Uzaqbay Echjanovich ◽  
Aytjanov Bakhitjan Uzaqbaevich ◽  
Sagatdinov Islambek Janabaevich

The mutant varieties M KK-3523 and M KK-3560 turned out to be relatively large-box varieties. These varieties exceeded the standard from +0.1 to +0.3 grams. In the non-irradiated variant, the large-box variety was KK-3547. According to frozen crop from the irradiated variant, the mutant variety M KK-3523 was a relatively high-yielding variety when it had an excess of yield against the standard by 10.3%. In non-irradiated grades KK-3536, KK-3548 and KK-3530 for frozen harvest had an excess against the standard from 5.0 to 6.8%. KEYWORDS: Cotton breeding induced mutagenesis, mutant, radiation dose, mutation, variety, hybrids, cell, yield, precocity, fiber yield, fiber length.

Crop Science ◽  
2016 ◽  
Vol 56 (6) ◽  
pp. 2983-2995 ◽  
Author(s):  
Kari L. Hugie ◽  
David D. Fang ◽  
C. Wayne Smith ◽  
Ping Li ◽  
Lori L. Hinze ◽  
...  

Author(s):  
A.A. Mogîlda ◽  

Induced mutagenesis is considered an effective and potential method for generating genetic variation in agricultural plants. The paper presents data on the influence of this physical factor on the quantitative parameters in the M2 generation of sesame samples from Zaltsadovski, Kadet, Adaptovanii 2 at a dose of 200, 300, 400 and 500 Gy (Gray). According to the results obtained, the variability of some features was revealed, which varied depending on the sample and the applied radiation dose. The greatest changes in indicators compared to control were found in the genotypes Kadet at a dose of 300 Gy and Adaptovanii (200 Gy). The spectrum of morphobiological changes in plants will also be assessed in the M3 generation.


Author(s):  
M Hasan ◽  
N Gani ◽  
MD Alam ◽  
MTA Chowdhury

A field experiment was conducted to evaluate the effects of old jute seed powder (≥3 years old) on soil fertility and jute production using the high yielding variety of jute (Corchorus olitorius L.) O-9897 as the test plant. Six treatments of jute seed powder (JSP) and recommended dose of chemical fertilizers (RDF) with three replications were as T1: Control, T2: JSP 5 t/ha + ¼ RDF, T3: JSP 5 t/ha + ½ RDF, T4: JSP 5 t/ha + ¾ RDF, T5: RDF, and T6: JSP 5 t/ha. The growth and yield of jute were found to be the maximum for the treatment T4 (JSP+ ¾ RDF), where the plant height, base diameter, fiber yield and stick weight were increased 147, 85, 177, and 125%, respectively over the control. The highest contents of organic carbon, nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium in soil were also observed for the treatment T4. The sole application of jute seed powder increased the growth and yield of jute as well as the contents of nutrients in soil compared to the control; however, inputs of the jute seed powder in combination with the chemical fertilizers showed better results in improving soil fertility and jute production. J. Biodivers. Conserv. Bioresour. Manag. 2019, 5(2): 33-40


2021 ◽  
Vol 8 (1) ◽  
pp. e5451
Author(s):  
Elio De Jesús Rodríguez de la Torre ◽  
Fernando Mendes Lamas

This study aimed to evaluate the quantitative and qualitative aspects of production in different populations of cotton cultivars. Ten cultivars were evaluated annually in four plant populations. A randomized block design with split plots and three replicates was used. The cultivars were placed in plots, and the plant populations were placed in the subplots. The following characteristics were evaluated: fiber percentage, fiber yield (kg ha-1), fiber length (mm), the micronaire index, the short fiber index (%), and fiber resistance (gf tex-1). In general, the effect of cultivar was much more important than that of the plant population. These results agree with those obtained by several other authors who have claimed that cotton has a high capacity to adapt to certain population ranges. Thus, considering current seed prices, smaller populations can be used without affecting productivity.


2020 ◽  
Vol 2 (32(59)) ◽  
pp. 4-8
Author(s):  
M. Kodirova ◽  
I. Kahharov ◽  
M. Mutalova

This article provides data on the inheritance of fiber yield and fiber length in first generation hybrid forms derived from genotypically different forms of G.hirsitum L species medium fiber cotton. The obtained results showed that in hybrids F1 dominance of one of the parent forms and intermediate inheritance by the characteristics of yield and length of fibre is manifested in hybrids of forms with different genotype, with high and medium index, and inheritance by the type of positive superdomination, i.e. positive heterosis - in hybrids of forms with medium and high index.


2021 ◽  
Vol 13 (11) ◽  
pp. 6079
Author(s):  
Sarah Cusser ◽  
Shalene Jha

The societal and economic benefits of ecosystem services are both immense and multi-faceted. To holistically quantify the contribution of pollinators to agriculture requires measuring multiple indices of crop production beyond crop yield. Here, we conduct a field-based hand pollination experiment to measure the effects of self and outcross pollen on fiber yield and quality in conventionally managed cotton crops. First, we determine how different pollination treatments affect specific indices of fiber yield and fiber quality, including fiber length and fineness. Second, we investigate the suggested tradeoff between fiber yield and quality. We find that flowers receiving outcross pollen produce larger, heavier bolls than either self-crossed or non-crossed flowers. However, contrary to expectation, flowers of different treatments are indistinguishable in terms of fiber quality. Overall, we find that pollination treatment has no discernable effect on either fiber length or fiber fineness. Understanding the contribution of ecosystem services across multiple axes provides growers with information concerning potential tradeoffs or synergies, and offers insight into management decisions.


2021 ◽  
Vol 244 ◽  
pp. 02047
Author(s):  
Sabirjan Isaev ◽  
Sayidjakhon Khasanov ◽  
Yusufbay Ashirov ◽  
Azim Gafurov ◽  
Tokhtakhon Karabaeva

The highest yield of the promising cotton variety Pakhtakor-1 was achieved by irrigating the cotton with placing black plastic film. Accordingly, the average yield for 3 years was 37.2 q/ha, which was more by 7.9 q/ha than the control variant, whereas it was higher by 2.7 q/ha than Bayaut-2 variety of cotton, in which the same irrigation method was applied. It was found that in Pakhtakor-1 variety, fiber yield was 38.1-39.9%, followed by fiber length 33.5-34.0 mm and weight of 1000 seeds was 115-120.1 grams. Cotton fiber yield, fiber length and weight of 1000 seeds in Pakhtakor-1 for the three years were higher by 0.2-1.0 %, 0.1-0.7 mm and 0.4-1.6 mm, correspondingly, than the standard An-Bayaut-2. The highest economic efficiency of cultivating standard An-Bayaut-2 and promising cotton varieties Pakhtakor-1 through various irrigation technologies was achieved in the form of irrigated with black plastic film, accounted for net profit of 1943902 sums/ha (45 % profitability rate) and 870,583 sums of additional income (17.2 % the profitability rate) than the control.


Author(s):  
Jakhongir Abduganiyevich Ergashev ◽  
Bakhrom Quvondiqovich Madartov ◽  
Guzal Ruziyevna Kholmurodova ◽  
Makhliyo Nizom qizi Ummatova

The article analyzes the fiber yield and fiber quality, which have a negative correlation coefficient, using different methods of selection in the selection of mid-fiber cotton varieties, and analyzes the separation of fiber and high fiber content. It is suggested that positive hygiene can be found in pairs of hybrids and families in order to detect positive transgression, and by selecting larger samples, positive plant recombinant plants can be found. Practice is made of O-445 family, created by double hybridization on fiber yield, Range T-33-35/18, family O-580, created by double hybrid to improve fiber length, T-25-27/18 and T-54-56/18. the use of selection processes. KEYWORDS: cotton, double hybrids, complex hybrids, family, ridge, variety, population, fiber yield, fiber length.


2021 ◽  
Vol 258 ◽  
pp. 03015
Author(s):  
S Isaev ◽  
T Rajabov ◽  
G Goziev ◽  
A Khojasov

In this article, stratified feeding of Bukhara-102 variety of medium-fiber cotton with mineral fertilizers were carried out in the conditions of irrigated and fertile soils of Kashkadarya province. Simultaneously, compared to the studied fertilizer application options, there was a decrease in soil volume by 0.01–0.02 g/cm3, an increase in soil porosity by 0.4–1.2%, and an increase in soil water permeability to 5.8–24.6 m3/ha. Moreover, an additional yield of 1.3–2.6 quintals of cotton, the quality indicators of fiber length that increased by 0.1–0.2%, fiber yield to 0.2–0.5%, the weight of 1, 000 seeds to 1–2 grams , the incidence of Wilt's disease was found to become as low as 6.1–10 %. At the same time, with increasing salinity in the care of saline soils at different levels, the net profit was around 40, 617 - 1, 127, 853 UZS and the profitability rate was 0.8-20.1% lower than expected.


2016 ◽  
Vol 8 (10) ◽  
pp. 226 ◽  
Author(s):  
Emad Rashwan ◽  
Ahmed Mousa ◽  
Ayman EL-Sabagh ◽  
Celaleddin Barutçular

<p>Flax is a potential winter crop for Egypt that can be grown for both seed and fiber. The study was conducted during two successive winter seasons of 2013/14 and 2014/15 in the experimental farm of El-Gemmeiza Agricultural Research Station, Agriculture Research Centre, Egypt. The objective of this work was to evaluate the effect of irrigation intervals (25, 35 and 45) on the straw, seed, oil, fiber yields and quality of flax cultivars (Sakha1, Giza9 and Giza10). Irrigation intervals significantly influenced all studied traits except oil percentage. Irrigated flax plants every 35 days gave the maximum values for all traits, while irrigation every 45 days gave the minimum values. In respect to cultivars, significant differences were found in most yield and quality characters. Furthermore, the performance of Sakha 1 cultivar was superior in main stem diameter, biological, straw yields per faddan, seed index, seed, oil yields per faddan and oil percentage. Meanwhile, Giza 10 cultivar highly significantly out yielded Giza9 and Sakha1 in plant height, fiber fineness, fiber length, total fiber percentage and fiber yield per faddan. The interactions between irrigation intervals and flax cultivars were highly significant for all traits. Based on the results, Sakha1 cultivar recorded the maximum values for main stem diameter, biological, straw yields per faddan, seed, oil yields per faddan and oil percentage and Giza 10 recorded the maximum values for plant height, fiber fineness, fiber length, total fiber percentage and fiber yield per faddan under irrigation of plants every 35 days.</p>


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