Evolution of inflorescence branch modifications in cereal crops

2022 ◽  
Vol 65 ◽  
pp. 102168
Author(s):  
Ravi Koppolu ◽  
Shulin Chen ◽  
Thorsten Schnurbusch
2020 ◽  
pp. 160-168
Author(s):  
I. Senyk

Botanical composition of grasses is one of the most important indicators the biological value and quality of the obtained hay and pasture forage, the longevity of hayfi elds and pastures depend on. The issue of changing the botanical composition of agrophytocenoses is especially important in the context of global climate change, which in recent decades is also manifested in the territory of Ukraine, as it is possible to establish the most adapted species of legumes and cereals to adverse weather conditions and to identify eff ective technological methods of managing these processes for maximum conservation economically valuable species in the herbage. The purpose of the research is to establish the infl uence of diff erent ways of sowing of clover and alfalfa cereal crops agrophytocenoses on the formation of their botanical composition. Field studies have established diff erent eff ects of conventional in-line, cross-section and cross-sectional methods of sowing on the formation of botanical composition of grass mixtures of clover meadow (Trifolium pratense) varieties Sparta and Pavlyna with timothy meadow (Phleum pratense) and fenugreek multifl oral (Lolium multifl orum) and of agrophytocenoses of alfalfa of Sinyukha and Seraphima sowing varieties with reed fire (Festuca arundinacea Schreb) and middle wheatgrass (Elytrigia intermedia). For the average of four years of life of clover and alfalfa cereal crops agrophytocenoses, the highest proportion of legume component was observed with split-cross sowing – 51.6 % for Sparta, 53.1 % for Pavlyna, 60.3 % for Seraphima and 61.6 % for the Sinyukha variety. In the fourth year of life (the third year of use) of sowed leguminous-cereals agrophytocenoses, the preservation of the legume component was 14.6–15.5 % in clover-cereals grass mixtures with the Sparta variety and 16.0–16.8 % with the Pavlyna variety. In alfalfa grasslands, these indicators were 54.0–55.1 % with Seraphim and 55.0–56.2 % with Sinyukha. Among the studied varieties of clover meadow and alfalfa sowing proved better in the conditions of the Forest Steppe of western Pavlyna and Sinyukha. Cross-sectional and divided cross-sectional sowing of legumes and cereals mixtures proved to be better compared to conventional row crops in terms of conservation of economically valuable grass species. Key words: agrophytocenosis, botanical composition, clover meadow, alfalfa sowing, sowing methods.


2018 ◽  
Vol 53 (5) ◽  
pp. 1070-1079
Author(s):  
Zh.A. Shirinyan ◽  
◽  
M.V. Pushnya ◽  
E.Yu. Rodionova ◽  
E.G. Snesareva ◽  
...  

2007 ◽  
Vol 35 (2) ◽  
pp. 693-696
Author(s):  
Krunoslav Zmaic ◽  
Ruzica Loncaric ◽  
Tihana Sudaric
Keyword(s):  

Author(s):  
V.I. Pakhomov ◽  
◽  
S.V. Braginets ◽  
O.N. Bakhchevnikov ◽  
A.I. Rukhlyada ◽  
...  

Low-traumatic technology of grain separation from an ear is developed. It consists in influence of an air jet on an ear.It leads to rolling of an ear on a surface of the threshing device concave and causes its partial abrasion which is followed by grains separation. Process of wheat ears low-traumatic threshing in the experimental device yields satisfactory results, provides reduces grain endosperm damage on 10-12% in comparison with traditional technology. Germ of grain damage decreases by 5%.Crushing of grain made no more than 0,5%. Use of the developed technology of the low-traumatic threshing will allow to reduce grain damage of cereal crops in case of the harvesting. It is important by cereal breeding.


AGRICA ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 55-68
Author(s):  
Sri Wahyuni ◽  
Murdaningsih Murdaningsih

The goal of this research was to identify the dryland cereal crop seed plasma types growing around Kelimutu National Park, located in Ende district on the island of Flores in Indonesia, by observing crop morphology and cultivation techniques.  Cereal crops represent the largest source of carbohydrates in the regional diet in comparison to other food groups in this area where dry land makes up 80% of the total available land.  It is estimated that the Ende district of Flores has adequate potential to produce dryland cereal as a staple food crop.  Previous studies have shown that farmer preference is shifting towards the cultivation of crops with a higher economic value which threatens the existence of some cereal crops.  Concurrently, shifts in eating habits have made rice a staple food in this region, leading to increased consumption and threatening the existence of other cereal crops.  Furthermore, outsiders tend to think of areas like Flores as being impoverished, with frequent problems with food security. Currently, there is a lack of knowledge within the youth population about the types of foods, especially cereals, which are rich in nutrients and their use in rituals.  This research aims to address this gap by collecting information on cereal crops in and around Kelimutu National Park for dissemination through educational and cultural tours. This study was conducted in the eastern subdistrict of Ndona, Flores and Wolojita Detusoko between June and December 2011.  Study findings identified 5 main cereal crops: paddy fields (consisting of: Are Rumba, Are Sela, Are Obo, Are Laka, Amera, Eko Ndale, Kea Ria, Are Mera, Are Kea Mboa, Eko Ena), corn (consisting of Java Roga, Nggela Java, Java, Keo Ri’a), sorghum (consisting of mera Lolo, Lolo Mite and Lolo Telo Leko), barley (consisting of Mera and Wete Wete Bara) and millet (consisting of Ke’o Mite and Ke’o).  Of the five types of cereal crops identified, one type (Pega, a subspecies of barley with a sorghum-like panicle) is not found in four of the districts.  It was found that corn, classified as a native plant, is strengthened through cultivation by re-seeding.  Study results illustrated that corn in this area is of reduced genetic quality, as illustrated by the fact that 3-4 cobs did not develop.  Alternatively, the Ke’o Bara strain of barley has a morphology and panicle strand number (270-300) that suggest that this species is typical of this region.


Fermentation ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 59
Author(s):  
Timothy J. Tse ◽  
Daniel J. Wiens ◽  
Jianheng Shen ◽  
Aaron D. Beattie ◽  
Martin J. T. Reaney

As barley and oat production have recently increased in Canada, it has become prudent to investigate these cereal crops as potential feedstocks for alcoholic fermentation. Ethanol and other coproduct yields can vary substantially among fermented feedstocks, which currently consist primarily of wheat and corn. In this study, the liquified mash of milled grains from 28 barley (hulled and hull-less) and 12 oat cultivars were fermented with Saccharomyces cerevisiae to determine concentrations of fermentation products (ethanol, isopropanol, acetic acid, lactic acid, succinic acid, α-glycerylphosphorylcholine (α-GPC), and glycerol). On average, the fermentation of barley produced significantly higher amounts of ethanol, isopropanol, acetic acid, succinic acid, α-GPC, and glycerol than that of oats. The best performing barley cultivars were able to produce up to 78.48 g/L (CDC Clear) ethanol and 1.81 g/L α-GPC (CDC Cowboy). Furthermore, the presence of milled hulls did not impact ethanol yield amongst barley cultivars. Due to its superior ethanol yield compared to oats, barley is a suitable feedstock for ethanol production. In addition, the accumulation of α-GPC could add considerable value to the fermentation of these cereal crops.


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