scholarly journals GROWTH, DEVELOPMENT, YIELD, AND QUALITY OF SOME NEW RICE VARIETIES IN QUANG BINH PROVINCE

2017 ◽  
Vol 126 (3E) ◽  
Author(s):  
Phan Thị Phương Nhi ◽  
Hà Thanh Phú
Keyword(s):  
Hybrid Rice ◽  
Rice Production ◽  
Rice Varieties ◽  
Local Conditions ◽  
Research Regulation ◽  
Yield And Quality ◽  
Growth Development ◽  
High Yields ◽  
Consumer Tastes

This research was conducted to evaluate the growth, development and yield of some new rice varieties in order to serve quality rice production in Quang Binh province. The nine rice varieties were designed in randomized complete block (RCBD), three replicates for each variety. The research targets were implemented in according to the rice research regulation. The growing time of these varieties were suitable with the local conditions (115-125 days in the Winter Spring and 105-113 days in the Summer Autumn crops). In general, the rice varieties were less susceptible of deseases and had good quality rice, long grain and suitable for the consumer tastes. We selected two varieties, GM2-17 and LL.HH3 (hybrid rice) had high yields in two Winter Spring and Summer Autumn crops, 62.33 quintals/ ha; 60.79 quintals/ hectare (GM2-17) and 70.04 quintal/ hectare; 66.48 quintals/ hectare (LL.HH3), respectively.

scholarly journals NGHIÊN CỨU KHẢ NĂNG SINH TRƯỞNG PHÁT TRIỂN, NĂNG SUẤT VÀ CHẤT LƯỢNG CỦA MỘT SỐ GIỐNG DƯA CHUỘT TẠI TỈNH THỪA THIÊN HUẾ

2021 ◽  
Vol 5 (3) ◽  
pp. 2555-2564
Author(s):  
Trần Thị Thu Giang ◽  
Hoàng Kim Toản ◽  
Nguyễn Đình Thi ◽  
Trần Thị Ánh Tuyết
Keyword(s):  
Field Experiment ◽  
Fruit Yield ◽  
Crop Season ◽  
Local Conditions ◽  
Ecological Conditions ◽  
Yield And Quality ◽  
Growth Development ◽  
Dark Green ◽  
Summer Crop

Nghiên cứu được tiến hành trên 7 giống dưa chuột gồm Champ 937, F1 Phú Nông 779, Kiếm Đài Loan, Madam 579, CUS 067, CUS 070 và giống đối chứng Chaiyo 578. Thí nghiệm thực hiện ngoài đồng ruộng trong vụ Xuân Hè năm 2020 tại tỉnh Thừa Thiên Huế nhằm mục đích đánh giá đặc điểm sinh trưởng, phát triển, năng suất, chất lượng của các giống dưa chuột và xác định được giống dưa chuột phù hợp với điều kiện sinh thái. Kết quả nghiên cứu cho thấy các giống thí nghiệm có thời gian sinh trưởng ngắn ngày (65 - 80 ngày), phù hợp với điều kiện địa phương. Các giống dưa chuột có năng suất thực thu cao hơn so với giống đối chứng (19,87 tấn/ha) như  Kiếm Đài Loan (29,93 tấn/ha), CUS 067 (22,26 tấn/ha), F1 Phú Nông 779 (22,60 tấn/ha) và có chất lượng tốt như ruột quả đặc, quả giòn, không bị đắng ở đầu quả, vỏ quả màu xanh đến xanh đậm phù hợp với thị hiếu người tiêu dùng. ABSTRACT The study was conducted on seven cucumber varieties including Champ 937, F1 Phu Nong 779, Kiem Taiwan, Madam 579, CUS 067, CUS 070 and Chaiyo 578 as a control. The field experiment was carried out in Spring-Summer crop season of the year 2020 in Thua Thien Hue province to evaluate the growth, development, yield, and quality of these cucumber varieties and to identify the cucumber varieties which are suitable for ecological conditions in Thua Thien Hue province. The results showed that these varieties were a short growing time (from 65 days to 80 days), suitable for local conditions. Kiem Taiwan, CUS 067 and F1 Phu Nong 779 varieties had higher fruit yield, 29.93, 22.26 and 22.60 ton/ha, respectively and better qualities than the control sụch as the inside of cucumber was thick and crunchy, the top of the cucumbers was not bitter, the peels were from green to dark green which were suitable for the tastes of consumers.  

scholarly journals Improvement of the cucumber protection system in the greenhouse for production environmentally safe products

2020 ◽  
pp. 15-20
Author(s):  
Svetlana Aleksandrovna Dudnikova ◽  
Valentina Vasilievna Lapina ◽  
Nikolay Vasilievich Smolin ◽  
Dmitry Vladimirovich Bochkarev
Keyword(s):  
Biologically Active ◽  
Net Income ◽  
Biological Products ◽  
Yield And Quality ◽  
Combined Use ◽  
Environmentally Safe ◽  
Beginning Of Flowering ◽  
Growth Development ◽  
Active Substances

Production of environmentally friendly cucumber products is one of the important problems of modern vegetable growing. In the current situation, many issues of cucumber technology using the low-volume technology method require adjustment and further improvement. The purpose of the research was to study and assess the effect of combinations of zircon with biofertilizers against the background of the use of biological products on the growth, development, yield and quality of cucumber. The complex treatment of cucumber plants of the F1 Atlet hybrid with biologically active substances (BAS) contributed to an increase in biometric indicators in comparison with the control throughout the entire crop rotation. The period from germination to the beginning of flowering and fruiting decreased, the plant height increased by 7.2–13.2% and the stem diameter by 12.5–17.5%. The yield was significantly influenced by the growth of the leaf area of cucumber plants, which increased in variants with experimental technologies by 5.9–34%. Under the influence of the studied factors, the yield of standard cucumber production increased by 8.0–27.6%. The mass fraction of fruits that do not meet the requirements of the standard was 6.6–8.1%. On the control variant, the output of non-standard products increased to 10%. The highest net income and level of profitability were obtained with the combined use of Zircon with Ecofus, both against the background of the use of biological products (659.3 rubles / m2 or 38.4%) and without them (685.13 rubles / m2 or 40.1%).

scholarly journals The Identification of Rice Varieties Used in Central Sulawesi

2021 ◽  
Vol 232 ◽  
pp. 03013
Author(s):  
Femmi Norfahmi ◽  
Komalawati Komalawati ◽  
Muh. Afif Juradi ◽  
Mardiana Mardiana ◽  
F.F. Munier
Keyword(s):  
Secondary Data ◽  
Rice Production ◽  
Rice Varieties ◽  
Local Varieties ◽  
Rice Productivity ◽  
Pests And Diseases ◽  
High Yielding Varieties ◽  
Central Sulawesi

Central Sulawesi’s rice productivity in 2019 was lower compared to that in 2018. One of the problems for the low productivity of paddy in Central Sulawesi is the application of low quality of seeds. Ministry of Agriculture through Central Sulawesi AIAT has introduced a numbers of new high yielding varieties (HYV) to increase rice production and productivity. To support the dissemination of new HYV, it is important to study the rice varieties that mostly used by farmers in Central Sulawesi. The objectives of this study are to identify the rice varieties and the preferred characteristics of rice varieties that farmers usually used in Central Sulawesi. This study used primary and secondary data. Data were analyzed descriptively and presented in tables and graphs. The results show that most farmers in Central Sulawesi use Mekongga, Ciherang, and Cisantana varieties, and local varieties such as Peluncur, Dewi, Ntabone and others. Farmers generally prefer varieties which tend to produce higher yields and resistant to pests and diseases. To maintain the availability of the varieties in Central Sulawesi, it is important to train farmers to become breeders.

scholarly journals Effect of Integrated Nutrient Management on Yield and Quality of Basmati Rice Varieties

2019 ◽  
Vol 11 (5) ◽  
pp. 93
Author(s):  
Uppu Sai Sravan ◽  
Shiv Prakash Singh
Keyword(s):  
Nutrient Management ◽  
Farmyard Manure ◽  
Quality Parameters ◽  
Recommended Dose ◽  
Basmati Rice ◽  
Rice Varieties ◽  
Blue Green Algae ◽  
Yield And Quality ◽  
Head Rice

A 2-year study conducted to determine the effect of integrated nutrient management on yield and quality of basmati rice varieties in non-traditional area with 54 plots in split plot design. Variety HUBR 10-9 produced 18.8% higher mean grain yield and superior quality parameters than HUBR 2-1. Mean milling, head rice recovery, amylose content and alkali digestion value noted higher with HUBR 10-9 by 4.1%, 4.1%, 8.5% and 15.1% over HUBR 2-1, respectively. Addition of 75% recommended dose of fertilizers with 25% recommended dose of nitrogen as farmyard manure produced higher mean values by 3.1%, 4.2% and 4.0% for hulling, milling and head rice recovery respectively over 100% recommended dose applied as inorganic sources. Combined use of bio-inoculants (blue green algae plus Azospirillum) exhibited higher values for yield and quality parameters. HUBR 10-9 be grown using 75% recommended dose of fertilizers with 25% nitrogen as farmyard manure and blue green algae plus Azospirillum for enhancement in yield and quality in non-traditional areas of eastern Uttar Pradesh. Further investigation required under diverse conditions.

scholarly journals Quality Analysis Of Organic Rice Variety Mentik Susu And Sintanur Nutritional Approach

2018 ◽  
Vol 215 ◽  
pp. 02011
Author(s):  
Sri Handayani ◽  
Muhammad Irfan Affandi ◽  
Sussi Astuti
Keyword(s):  
Rice Variety ◽  
Nutrient Content ◽  
Ash Content ◽  
Quality Analysis ◽  
Laboratory Research ◽  
Rice Varieties ◽  
Organic Rice ◽  
Climate Suitability ◽  
High Yields

Organic rice production in Indonesia is increasing due to the tendency of consumers who start to consume healthy food and one of them is organic rice. Varieties cultivated by farmers in Lampung Province is mentik susu and sintanur based on high yields and climate suitability. The quality of organic rice can be known through nutritional approach. The purpose of this research is to analyze quality comparison of organic rice of mentik susu and sintanur varieties with nutritional approach. The research methodology used is laboratory research. Data analysis methods used to answer the objective of a proximate test to determine the nutrient content of organic rice in both varieties of mentik susu and sintanur. Nutritional content that is cultivated is carbohydrates, fats, proteins, water, fiber, and ash content. The result of the analysis shows that carbohydrate, protein, and nutrient content of organic rice of mentik susu variety was higher than sintanur varieties. While the fat content, water content, and ash content of organic rice varieties mentik susu is lower than the sintanur varieties. In general it can be concluded that the quality of organic rice varieties mentik susu better than sintanur varieties.

Effect of density on growth, development, yield and quality of kabocha (Cucurbita maxima)

1998 ◽  
Vol 38 (2) ◽  
pp. 195
Author(s):  
T. Botwright ◽  
N. Mendham ◽  
B. Chung
Keyword(s):  
Vegetative Growth ◽  
Plant Density ◽  
Total Yield ◽  
Cucurbita Maxima ◽  
Marketable Yield ◽  
Yield And Quality ◽  
High Plant Density ◽  
Plant Densities ◽  
Growth Development

Summary. The effect of plant density on growth, development, yield and quality of kabocha (buttercup squash) (Cucurbita maxima) was examined during 1992–93, at a field site in Cambridge, Tasmania. Plant densities ranged between 0.5 and 4.7 plants/m2. Marketable and total yields were fitted to a yield–density model. Total yield followed an asymptotic trend, approaching 33 t/ha at 4.7 plants/m2, while marketable yield had a parabolic relationship with density. Marketable yield increased to a maximum of 18 t/ha at 1.1 plants/m2, while declining at higher densities because of increased numbers of undersized fruit. Yield of vine marked and callused fruit did not vary with density, but represented a significant proportion of the total yield at all densities. High plant density reduced vegetative growth per plant due to competition for limited resources; as shown by decreased leaf area, number and length of vines, and plant dry weight. Yield tended to decline at high densities because of fewer female flowers and increased fruit abortion per plant. Plants at low densities had more vegetative growth but decreased yields, as increased abortion of fruit relative to the higher plant densities left only 1–2 large fruit per plant. Economic returns varied with plant density. At high densities, variable costs increased (particularly due to high seed cost) while gross income declined reflecting the relationship between marketable yield and plant density. The gross margin therefore declined at high densities.

scholarly journals Transcriptome and genome sequencing elucidates the molecular basis for the high yield and good quality of the hybrid rice variety Chuanyou6203

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Juansheng Ren ◽  
Fan Zhang ◽  
Fangyuan Gao ◽  
Lihua Zeng ◽  
Xianjun Lu ◽  
...  
Keyword(s):  
Molecular Mechanism ◽  
Hybrid Rice ◽  
Rice Variety ◽  
Utilization Efficiency ◽  
High Yield ◽  
Mrna Editing ◽  
High Quality ◽  
Flag Leaves ◽  
Yield And Quality

AbstractThe yield heterosis of rice is sought by farmers and strong contributes to food safety, but the quality of hybrid rice may be reduced. Therefore, developing new varieties with both high yield and good quality is a heavily researched topic in hybrid rice breeding. However, the molecular mechanism governing yield heterosis and high rice quality has not been elucidated to date. In this study, a comparative transcriptomics and genomic analysis was performed on a hybrid rice variety, Chuanyou6203 (CY6203), and its parents to investigate the molecular mechanism and gene regulation network governing the formation of yield and quality stages. A total of 66,319 SNPs and InDels between CH3203 and C106B were detected in the 5′-UTR, exon, intronic, and 3′-UTR regions according to the reference genome annotation, which involved 7473 genes. A total of 436, 70, 551, 993, and 1216 common DEGs between CY6203 and both of its parents were identified at the same stage in panicles and flag leaves. Of the common DEGs, the numbers of upregulated DEGs between CY6203 and CH3203 were all greater than those of upregulated DEGs between CY6203 and C106B in panicles and flag leaves at the booting, flowering, and middle filling stages. Approximately 40.61% of mRNA editing ratios were between 0.4 and 0.6, and 1.68% of mRNA editing events (editing ratio ≥ 0.8) in CY6203 favored one of its parents at three stages or a particular stage, suggesting that the hypothetical heterosis mechanism of CY6203 might involve dominance or epistasis. Also 15,934 DEGs were classified into 19 distinct modules that were classified into three groups by the weighted gene coexpression network analysis. Through transcriptome analysis of panicles and flag leaves in the yield and quality stages, the DEGs in the green-yellow module primarily contributed to the increase in the source of CY6203 due to an in increase in photosynthetic efficiency and nitrogen utilization efficiency, and a small number of DEGs related to the grain number added spikelet number per panicle amplified its sink. The balanced expression of the major high-quality alleles of C106B and CH3203 in CY6203 contributed to the outstanding quality of CY6203. Our transcriptome and genome analyses offer a new data set that may help to elucidate the molecular mechanism governing the yield heterosis and high quality of a hybrid rice variety.

Prediction of Rice Milling Yield and Quality Attributes during Storage Using Regression Analyses

2019 ◽  
Vol 62 (5) ◽  
pp. 1259-1268
Author(s):  
Soraya Shafiekhani ◽  
Jung Ae Lee ◽  
Griffiths G. Atungulu
Keyword(s):  
Hybrid Rice ◽  
Storage Temperature ◽  
Rice Yield ◽  
Storage Conditions ◽  
Milled Rice ◽  
Yield And Quality ◽  
Head Rice ◽  
Rough Rice ◽  
Milling Yield

Abstract. Regression analyses were performed to determine the storage conditions that exhibited the best outcomes for long-grain, hybrid milled rice yield and quality. This study evaluated mold population on rough rice, milled rice discoloration, and head rice yield (HRY) after storage of rough rice in airtight conditions at moisture contents (MCs) of 12.5%, 16%, 19%, and 21% wet basis and temperatures of 10°C, 15°C, 20°C, 27°C, and 40°C at two-week intervals for 12 weeks. The experiment used a popular long-grain hybrid rice cultivar (XL745). Rice lots were procured from fields with and without conventional treatment of the field with fungicide for plant disease management. Field treatment and no field treatment were considered as a block, and a Mann-Whitney test was conducted to determine effect. The response surface method, an extension of second-order polynomial regression, was used to examine optimal treatment conditions. Mold population and milled rice discoloration from a combination of storage conditions were predicted using regression models. The first-order and second-order terms of temperature indicated a nonlinear relationship between temperature and ln(discoloration). The MC was positively associated with ln(discoloration), but the degree of impact may change with temperature because the interaction term was significant. From the model evaluation (R2 and lack-of-fit test), the discoloration level is expected to be 57% (49% to 66% confidence interval) under conditions of 20% MC, 40°C, and nine weeks of storage for samples procured from fungicide-treated rice fields. This discoloration change is substantial compared to the initial discoloration of 9%. At high temperature (40°C) and MC (21%), discoloration started immediately after two weeks of storage. Anaerobic storage conditions impeded mold growth, especially at high storage temperature (40°C). Low mold populations were observed in rice stored at low MC (16%). According to the regression model, the critical storage temperature that may lead to discoloration is between 27°C and 40°C. Pre-harvest fungicide treatment of rice in the field for disease control significantly improved the HRY but had no significant influence on mold population or discoloration. This study suggests a range of storage conditions to prevent losses in milling yield and quality of rice. In addition, the studied storage conditions mimicked the typical conditions for on-farm, in-bin drying and storage in the U.S. Mid-South, especially for the top layers of rice inside the bin, and therefore provide an important reference for growers and rice processors using in-bin structures to manage the quality of long-grain hybrid rice. Keywords: Discoloration, Head rice yield, Mold population, Regression analysis, Rice quality, Rice storage.

scholarly journals Reduction in Fertilizer Input´s Has No Significant Affect on Yield or Performance of Early- and Late-season Indica Hybrid Rice

2020 ◽  
Author(s):  
Huang Zhiyuan ◽  
ZhiYuan Huang ◽  
QiMing Lv ◽  
Md. Amir Hossain ◽  
ZhaoHui Wu ◽  
...  
Keyword(s):  
Hybrid Rice ◽  
Relative Yield ◽  
Growth Period ◽  
Rice Production ◽  
Hunan Province ◽  
Substantial Contribution ◽  
Rice Varieties ◽  
Early Season ◽  
Late Season ◽  
Panicle Number

Abstract Increasing rice production by using genetically improved rice cultivars and fertilizer application has been the main objective of rice farming. The double rice-cropping system has been an important rice production system in the middle and lower reaches of the Yangtze River in China since the 1950s. It is of great significance to determine whether hybrid vigor can make a substantial contribution to early- and late-season rice production, and how the heterosis expression of hybrid rice functions under different level of fertilization application. The objective of this study was to evaluate the grain yield and associated plant traits of popular hybrid and inbred rice varieties with large-scale promotion under conditions of customary (high) and combined (low) fertilization in the early and late seasons of 2017-18 in Changsha County, Hunan Province, central Southern China. We found that hybrid rice varieties displayed their respective advantages in the early- and late-rice seasons, but the advantages in their relative yield traits varied. The main advantages of early-season rice were effective panicle number per hill (EPN), 1000-grain weight (KGW), harvest index (HI), yield, and nitrogen use efficiency (NUE). Whereas in late-season rice, the major advantages were grain number per panicle (GNP), HI, yield, and NUE. The EPN was the main advantage of early-season hybrid rice with a short-growth period, and the GNP was the main advantage of late-season hybrid rice with a long-growth period. The main yield advantage of hybrid rice was stronger under combined (low) fertilization than under customary (high) fertilization. Hence, high yield can be achieved by selecting good hybrid rice varieties and by using combined fertilization (lower fertilizer use with higher efficiency). This work is contributive for rice growers, extension specialists, and fertilizer producers, as it provides data that can be used to maximize yields with reduced fertilizer and pesticide inputs.

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