scholarly journals Mixed‐cropping systems of different rice cultivars have grain yield and quality advantages over mono‐cropping systems

2019 ◽  
Vol 99 (7) ◽  
pp. 3326-3334 ◽  
Author(s):  
Meijuan Li ◽  
Jiaen Zhang ◽  
Shiwei Liu ◽  
Umair Ashraf ◽  
Benliang Zhao ◽  
...  
Keyword(s):  
Grain Yield ◽  
Cropping Systems ◽  
Mixed Cropping ◽  
Rice Cultivars ◽  
Yield And Quality ◽  
Grain Yield And Quality

scholarly journals Mixed-cropping systems of different rice cultivars have grain yield and quality advantages over mono-cropping systems

2018 ◽  
Author(s):  
Meijuan Li ◽  
Jiaen Zhang ◽  
Shiwei Liu ◽  
Umair Ashraf ◽  
Shuqing Qiu
Keyword(s):  
Grain Yield ◽  
Grain Quality ◽  
Cropping Systems ◽  
T Test ◽  
Mixed Cropping ◽  
Rice Cultivars ◽  
Growing Seasons ◽  
Yield And Quality ◽  
Grain Yield And Quality ◽  
Paired T Test

AbstractMixed-cropping system is a centuries-old cropping technique that is still widely practiced in the farmers’ field over the globe. Increased plant diversity enhances farmland biodiversity, which would improve grain yield and quality; however, the impacts of growing different rice cultivars simultaneously were rarely investigated. In present study, five popular rice cultivars were selected and ten mixture combinations were made according to the growth period, plant height, grain yield and quality, and pest and disease resistance. Seedlings of the five cultivars and ten mixture combinations (mixed-sowing of the seeds in an equal ratio, then mixed-transplanting and finally mixed-harvesting) were grown in plastic pots under greenhouse during the early and late growing seasons in 2016. Results showed that, compared with the corresponding mono-cropping systems, almost all combinations of the mixed-cropping systems have advantages in yield related traits and grain quality. Compared with the mono-cropping systems in the early and late growing seasons in 2016, mixed-cropping systems increased the number of spikelets per panicle, seed-setting rate, and grain weight per pot and harvest index by 19.52% and 5.77%, 8.53% and 4.41%, 8.31% and 4.61%, and 10.26% and 6.98%, respectively (paired t-test). In addition, mixed-cropping systems reduced chalky rice rate and chalkiness degree by 33.12% and 43.42% and by 30.11% and 48.13% in the early and late growing seasons, respectively (paired t-test). These results may be due to enhanced SPAD indexes and photosynthetic rates at physiology maturity in mixed-cropping systems. In general, it was found that mixed-cropping with different rice cultivars have potential for increasing grain yield and improving grain quality.

scholarly journals Quality and Grain Yield Attributes of Rwandan Rice (Oryza sativa L.) Cultivars Grown in a Biotron Applying Two NPK Levels

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Alphonsine Mukamuhirwa ◽  
Helena Persson Hovmalm ◽  
Rodomiro Ortiz ◽  
Obedi Nyamangyoku ◽  
Eva Johansson
Keyword(s):  
Grain Yield ◽  
Oryza Sativa L ◽  
Quality Attributes ◽  
Mineral Elements ◽  
Nutritional Composition ◽  
High Yield ◽  
Rice Cultivars ◽  
Yield Attributes ◽  
Yield And Quality ◽  
Grain Yield And Quality

High-yielding rice cultivars with good processing quality and rich in nutrition suitable to a changing climate are of particular importance for future rice-based food production. Here, seven Rwandan rice cultivars were grown in a climate chamber of the biotron facility at the Swedish University of Agricultural Sciences, to be evaluated for their grain yield, nutritional composition, and dough mixing properties. Two different levels of inorganic fertilizer were applied weekly from the seedling stage until flowering. Significant differences for grain yield and quality attributes were found between cultivars. Jyambere showed significantly the highest yield while Ingwizabukungu, Nemeyubutaka, and Jyambere were high in mineral elements content. Ndamirabahinzi and Mpembuke had the highest levels of TPC and TAC. Generally, the lower fertilizer dose resulted in a better performance of the cultivars for both yield and quality attributes. Significantly higher content of Fe, Ca, and Ba was found in grains from the moderate fertilizer dose, whereas K, Na, P, S, Zn, Cd, and Pb increased in grains from the higher fertilizer dose. The cultivar Ndamirabahinzi showed less variability of evaluated characters across fertilizer doses. The results from this study may be used for rice breeding of cultivars with high yield and good grain quality.

scholarly journals Comparison of grain yield and quality of different types of japonica rice cultivars in the northern Jiangsu plain, China

2021 ◽  
Vol 20 (8) ◽  
pp. 2065-2076
Author(s):  
Jin-long BIAN ◽  
Gao-lei REN ◽  
Fang-fu XU ◽  
Hong-cheng ZHANG ◽  
Hai-yan WEI
Keyword(s):  
Grain Yield ◽  
Japonica Rice ◽  
Rice Cultivars ◽  
Yield And Quality ◽  
Different Types ◽  
Grain Yield And Quality

Effect of Non-flooded Straw-mulching Cultivation on Grain Yield and Quality of Direct-seeding Rice

2011 ◽  
Vol 37 (10) ◽  
pp. 1809-1818
Author(s):  
Zi-Chang ZHANG ◽  
Hong-Wei LI ◽  
Xue-Ming WANG ◽  
Li-Min YUAN ◽  
Zhi-Qin WANG ◽  
...  
Keyword(s):  
Grain Yield ◽  
Direct Seeding ◽  
Straw Mulching ◽  
Yield And Quality ◽  
Grain Yield And Quality
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