Effect of Soil Moisture Stress Duration on the Growth Characteristics and Yield of Rice Cultivars

Momolu, Emmanuel P.; Katuromunda, Sylvester; Lamo, Jimmy

doi:10.15640/jaes.v4n2a9

Cited by 6 publications

(5 citation statements)

References 20 publications

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“…It has been reported that usually the varieties which have longer growing season have higher biological yield. Momolu et al [37] also reported that some traits including the number of days to maturity, biological yield, grain weight, grain yield and harvest index in varieties of rice are significantly different under moisture stress condition. However, among all the varieties, NERICA 4, Dourado, L-22, LAC-23, Kpatawee and Jaowo rice varieties obtained the largest biological yield indicating they had the best performance in terms of biological yield (Table 5).…”

Section: Biological Yield/gram/potmentioning

confidence: 99%

“…The performance of the varieties across all the water stress treatments were significantly different on the number of panicles, this was due to the stressful conditions. Momolu et al [37] reported that water stress at or before panicle initiation reduced panicle number regardless of the growth stage of the crop at which stress occurred. This might be due to the fact that moisture stress reduced the rate of cell division and growth of the individual cells.…”

Section: Panicle Numbers/plantmentioning

confidence: 99%

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Effect of Water Stress Duration on the Growth Characteristics and Yield Components of Upland Rice Varieties in Kenya

Pope,

Opile,

Ngode

et al. 2023

AJRCS

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Drought stress is a major problem in upland rice grown areas under rainfed conditions. It affects plant growth and development, and eventually leads to a considerable yield reduction. The study was carried out with the aim of evaluating the effect of drought stress duration on the growth characteristics and yield components of upland rice varieties. The experiment was conducted at the University of Eldoret with Sixteen upland commercial and local rice varieties were used in the study obtained from Kenya and Liberia. Rice plants were subjected to drought stress treatments at tillering and flowering stages in the green house. The experiment was layout in a complete randomized design (CRD) in a split plot arrangement with five treatments and replicated three times. The results of leaf rolling, plant height, days to 50% flowering, days to maturity, panicle number, spikelet sterility, biological yield, leaf relative water content,1000-grain weight, harvest index and grain yield revealed that there were significant differences as a result of water stress on the treatments (p≤0.001) and rice varieties (p≤0.05). All the sixteen varieties were significantly affected by the treatments when compared with the control. The results also revealed that MWUR, Dourado, L-22, Komboka, Jaowo, LAC-23, Kpatawee, MWUR, White rice and Red Youmo varieties were significantly affected by the water stress treatments at leaf rolling, flowering and maturity then that of NERICA 1,2 ,3, 4, 10,11 and 14 at tillering and flowering stages. The findings of this study indicated that NERICA 1, 2, 3, 4, 10 varieties were less affected by soil water stress treatments amongst the tested varieties, followed by NERICA 11 and14 respectively. Thus, NERICA varieties had the best performance in most of the parameters that were measured. Therefore, these varieties can thus be used by breeders to develop varieties adapted to areas with limited rain fall and insufficient soil moisture for rice production.

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Section: Biological Yield/gram/potmentioning

confidence: 99%

Section: Panicle Numbers/plantmentioning

confidence: 99%

Effect of Water Stress Duration on the Growth Characteristics and Yield Components of Upland Rice Varieties in Kenya

Pope,

Opile,

Ngode

et al. 2023

AJRCS

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“…Vermicompost is a nutrient-rich, microbiologically-active organic amendment that results from the interactions between earthworms and microorganisms during the breakdown of organic matter. It not only provides nutrition to plants, but also improves soil fertility and soil structure (5)(6) .…”

Section: Introductionmentioning

confidence: 99%

Integrated effects of vermicompost, climatic factors and soil mixing on selected soil fertility indicators

Saha

Khan

Akter

et al. 2023

Dhaka Univ. J. Biol. Sci

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A field experiment was carried out to investigate the effects of vermicompost (0, 10, and 15 tha-1), climatic elements i.e. soil moisture (50%, 70%, and 100%) and elevation of soil temperature (1 to 20C) on the physico-chemical properties and nutrient availability of post-harvest calcareous-acid mixed soils after rice production. A total of 18 treatments assembling the afore-mentioned doses was applied. The analyses of the soils demonstrated significant variation in effects (p ≤0.05) of the treatments on both the available nutrient status and the physicochemical properties of soils. Except for available sulfur; soil pH, EC, organic carbon (OC), available nitrogen, phosphorous, potassium, calcium, and sodium were detected in the higher amounts in 1:1 (calcareous : acid-soils) mixed soils than those of 1:3 mixed counterpart both in initial and post-harvest soil conditions. The highest levels of soil pH, OC, available P and Zn were determined in the treatment T13. Whereas, treatment T6 proved to be the best dose for the highest availability of Ca and Mg. The treatments T1, T2, T11, and T16 were recorded to have the lower OC, available N, P, Ca, Mg, Zn and S contents in soils. In particular, the availability of Na was found to be in lesser amounts in all the subplots. In a nutshell, most of the treatments exerted favourable influence in maintaining a healthy level of soil physico-chemical parameters owing to their inherent characteristics. Dhaka Univ. J. Biol. Sci. 32(1): 119-134, 2023 (January)

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“…For instance, waste valorization should be considered as a transition phase towards a circular waste-based bio-economy and implemented as part of an integral approach [18]. Olive pruning residues could be valorized by means of different initiatives such as for energetic purposes [19] covering an important part of pellet consumption [20] or processing olive pruning in biorefineries. In these facilities, olive pruning could be processed along with olive leaves and pomace [21] as these residues are a potential source of natural antioxidants [22] or could be used to extract cellulose nanofibers [23].…”

Section: Introductionmentioning

confidence: 99%

Methodology for Olive Pruning Windrow Assessment Using 3D Time-of-Flight Camera

et al. 2021

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The management of olive pruning residue has shifted from burning to shredding, laying residues on soil, or harvesting residues for use as a derivative. The objective of this research is to develop, test, and validate a methodology to measure the dimensions, outline, and bulk volume of pruning residue windrows in olive orchards using both a manual and a 3D Time-of-Flight (ToF) camera. Trees were pruned using trunk shaker targeted pruning, from which two different branch sizes were selected to build two separate windrow treatments with the same pruning residue dose. Four windrows were built for each treatment, and four sampling points were selected along each windrow to take measurements using both manual and 3D ToF measurements. Windrow section outline could be defined using a polynomial or a triangular function, although manual measurement required processing with a polynomial function, especially for high windrow volumes. Different branch sizes provided to be significant differences for polynomial function coefficients, while no significant differences were found for windrow width. Bigger branches provided less bulk volume, which implied that these branches formed less porous windrows that smaller ones. Finally, manual and 3D ToF camera measurements were validated, giving an adequate performance for olive pruning residue windrow in-field assessment.

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Effect of Soil Moisture Stress Duration on the Growth Characteristics and Yield of Rice Cultivars

Cited by 6 publications

References 20 publications

Effect of Water Stress Duration on the Growth Characteristics and Yield Components of Upland Rice Varieties in Kenya

Effect of Water Stress Duration on the Growth Characteristics and Yield Components of Upland Rice Varieties in Kenya

Integrated effects of vermicompost, climatic factors and soil mixing on selected soil fertility indicators

Methodology for Olive Pruning Windrow Assessment Using 3D Time-of-Flight Camera

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