Direct seeded rice versus normal transplanted rice: An economic comparison

Romana, G.S.

doi:10.5958/j.2322-0430.10.2.039

Cited by 4 publications

(3 citation statements)

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“…Its wide natural geographical distribution and long history of cultivation brought in substantial genetic diversity with various traits selected for different environments and cultivation systems (Doebley et al., 2006). Direct seeding, particularly dry direct seeding (DDS), is now the preferred cultivation method in major rice production regions because of its high efficiency in water and fertilizer use (Romana, 2014), low greenhouse gas emissions (Liu et al., 2014), and low labor input (Liu et al., 2015). However, poor seedling emergence rate and inadequate seedling formation capacity may lead to yield loss, particularly when deep sowing is adopted (Wang et al., 2017).…”

Section: Introductionmentioning

confidence: 99%

Natural variation of OsML1, a mitochondrial transcription termination factor, contributes to mesocotyl length variation in rice

et al. 2023

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SUMMARYMesocotyl length (ML) is a crucial factor in determining the establishment and yield of rice planted through dry direct seeding, a practice that is increasingly popular in rice production worldwide. ML is determined by the endogenous and external environments, and inherits as a complex trait. To date, only a few genes have been cloned, and the mechanisms underlying mesocotyl elongation remain largely unknown. Here, through a genome‐wide association study using sequenced germplasm, we reveal that natural allelic variations in a mitochondrial transcription termination factor, OsML1, predominantly determined the natural variation of ML in rice. Natural variants in the coding regions of OsML1 resulted in five major haplotypes with a clear differentiation between subspecies and subpopulations in cultivated rice. The much‐reduced genetic diversity of cultivated rice compared to the common wild rice suggested that OsML1 underwent selection during domestication. Transgenic experiments and molecular analysis demonstrated that OsML1 contributes to ML by influencing cell elongation primarily determined by H2O2 homeostasis. Overexpression of OsML1 promoted mesocotyl elongation and thus improved the emergence rate under deep direct seeding. Taken together, our results suggested that OsML1 is a key positive regulator of ML, and is useful in developing varieties for deep direct seeding by conventional and transgenic approaches.

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Section: Introductionmentioning

confidence: 99%

Natural variation of OsML1, a mitochondrial transcription termination factor, contributes to mesocotyl length variation in rice

et al. 2023

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“…Drill paddy required substantially less time to prepare the land than transplanted paddy. Because of this, the total water input (rainfall plus irrigation) before crop establishment was significantly reduced [8][9][10][11]. With the aforementioned factors in mind, the current study was carried out in the Vidarbha Region of Maharashtra State's Bhandara district to examine the socioeconomic, psychological, and personal traits of paddy growers, determine the cost per hectare of cultivating Kharif paddy using the transplanted and drill cultivation methods, and calculate the relative economics of the transplanted and drill paddy cultivation methods.…”

Section: Introductionmentioning

confidence: 99%

An Evaluation of the Use of Drills and Transplanted Paddy Cultivation Techniques in Bhandara District of Maharashtra, India

Parshuramkar,

Nandeshwar,

Kausadikar

et al. 2023

IJECC

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In order to compare the costs, savings, and returns for the drill and transplanted methods of paddy cultivation, the current study, was conducted as a Research Review Committee Project in the Bhandara district of Nagpur division in Vidarbha region of Maharashtra, India. The method utilized was an exploratory social research design. Using the purposive population sampling technique method, a total of 72 sample paddy-growing beneficiary farmers from KVK, Sakoli Dist. Bhandara were chosen, and they were interrogated using a structured interview schedule. As a result, this study was limited to a sample of 72 paddy growers who were cultivating their paddy crops using both the transplanted and drill paddy methods. Findings of present study revealed that majority of the paddy growers were young with high education level, possessed small and marginal type of land holding with annul income in the range of Rs.75001/- to 1,50,000/-, medium level of scientific orientation,economic motivation,innovativeness respectively and favourable attitude towards to drill paddy technology. Further the findings of the study revealed that the highest gross returns received to farmers adopting were Rs. 85807.50/- and 81000.80/- per ha for transplanted and drill paddy cultivation methods respectively. The highest net returns at Cost A realized by the paddy farmers adopting drill paddy method of cultivation i.e. Rs.54738.28 per hectare. The highest benefit cost ratio (BC ratio) was released by the farmers adopting drill method of paddy cultivation at Cost A, Cost B and Cost C respectively.

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“…To overcome the water scarcity problem upland is an important system of rice culture and constitutes about one sixth of the world's total rice land. Direct seeding rice, a common practice before green revolution in India, is once again became popular because of its potential to save water and labour [5]. "Upland rice is also called autumn rice.…”

Section: Introductionmentioning

confidence: 99%

Character Association and Path Coefficient Analysis in Upland Rice (Oryza sativa L.) for Grain Yield and Quality Characters

Rajasekhar

Lavanya²,

Purushotham³

et al. 2022

IJPSS

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The present investigation was undertaken to evaluate Twenty Five Upland Rice genotypes. There are various aspects to move up rice yield, such as creating of irrigation work, development of rice ecosystems, soil conditions, traditional practices, and breeding of high yielding genotypes. Among them, it seems that the most effective and economic way available is to develop different rice ecosystems especially Upland Rice Genotypes. High to moderate phenotypic and genotypic coefficient of variation were observed for number of panicles per hill and number of tillers per hill. High heritability coupled with high genetic advance as percent of mean was observed for number of panicles per hill, number of tillers per hill, grain yield per hill, test weight and flag leaf length, indicating that these traits are most probably under the control of additive gene action and hence these traits can be fixed by proper selection.Days to 50% flowering, plant height, number of panicles per hill, flag leaf width, spikelets per panicle, days to maturity, biological yield per hill, harvest index and test weight, exhibited positive significant correlation with grain yield per hill at both genotypic and phenotypic levels, indicating selection based on these traits could be more effective to maximize grain yield. Days to 50% flowering, biological yield per hill and harvest index had positive direct effect on grain yield per hill. Therefore, selection program should be based on these traits for crop improvement with high yielding genotypes in Upland rice.

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Direct seeded rice versus normal transplanted rice: An economic comparison

Cited by 4 publications

References 0 publications

Natural variation of OsML1, a mitochondrial transcription termination factor, contributes to mesocotyl length variation in rice

Natural variation of OsML1, a mitochondrial transcription termination factor, contributes to mesocotyl length variation in rice

An Evaluation of the Use of Drills and Transplanted Paddy Cultivation Techniques in Bhandara District of Maharashtra, India

Character Association and Path Coefficient Analysis in Upland Rice (Oryza sativa L.) for Grain Yield and Quality Characters

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