Soil-Water-Crop Relationship: A Case Study of Cassava in the Tropics

Oshunsanya, Saurau O.; Nwosu, Nkem Joseph

doi:10.5772/intechopen.71968

Cited by 8 publications

(5 citation statements)

References 20 publications

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“…The harvest index ranged from 0.11 to 0.63 (average 0.30) (Table 2). It showed that soil, management, and the environment are the important factors in crop production (where the important index is water availability and quality) (Oshunsanya and Nwosu 2018).…”

Section: Resultsmentioning

confidence: 99%

Tuber yield, morphology, and chemical properties variability of sweet cassava germplasm

Wahyuni¹,

Noerwijati²

2021

ipas

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In Indonesia, the superior sweet cassava varieties are still limited due to the situation on which the majority of the superior varieties -bitter varieties- are used as industrial raw material until now. Therefore the availability of new high yielding of sweet cassava varieties is still needed. Assembling varieties requires the support of germplasm that has identified its superiority. The research objective was to evaluate tuber yield, morphology, and physico-chemical properties of cassava tuber from sweet cassava germplasm. A total of 75 accessions were characterized in Jambegede research station in February-November 2016, using Randomized Block Design. Variables observed included plant height, number of plants at harvest, harvest index, number and weight of tuber yield, and starch content. Physico-chemical analysis of tubers was carried out on 15 accessions with high tuber yields. Plant height at harvest was 393.2 cm in average. There were 10 accessions of sweet cassava with high fresh tuber yields ranging from 36.61 ton.ha-1 to 61.64 ton.ha-1, i.e MLG 10366, MLG 10365, MLG 10318, MLG 10197, MLG 10325, MLG 10341, MLG 10018, MLG 10279, MLG 10298, and MLG 10263. Physico-chemical analysis showed that the average of HCN content was 9.40 ppm, moisture content of 59.5 %, starch content of 28.8 % wb, and amylose content of 11.0 % wb. The bitter cassava with steamed tuber texture not cracked had relatively higher levels of HCN and water content, which was 82.88 ppm and 74.8 %, while the starch and amylose content was relatively lower (15.8 % wb and 5.5 % wb).

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Section: Resultsmentioning

confidence: 99%

Tuber yield, morphology, and chemical properties variability of sweet cassava germplasm

Wahyuni¹,

Noerwijati²

2021

ipas

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“…According to Sruthy and Rajasree [17] the aberrant weather conditions makes the rainfed cultivation of cassava risky due to poor seedling establishment on account of drying of setts and ultimately results unavailability of planting material. During first 3-4 months of growth, cassava requires enough moisture and it will not withstand waterlogged conditions [18]. Supplementary irrigations during dry months in cassava results more yield and drip irrigation system with 20 mm of water when the daily cumulative pan evaporation value reached 40 mm recorded two fold increase in the root yield [19].…”

Section: Cassavamentioning

confidence: 99%

Water Requirement of Major Tuber Crops: A Review

Sruthy,

Arjun

2023

IJECC

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One of the most crucial input required for the growth of crops is water. It is required by plants in enormous amounts and continually throughout their lifecycle. It has a significant impact on plant processes like photosynthesis, respiration, cell division, absorption, translocation, use of mineral nutrients and agriculture operations like irrigation, land husbandry, crop production, medium for spraying chemicals etc. But the future water supply is questionable due to climate change and related problems like rise in temperature. This lead to change in precipitation patterns and the entire water cycle are thrown off balance. Therefore, in the current environment, the development of water-saving agriculture is essential. As tuber crops are known for their high water use efficiency, it is having big part in water saving agriculture. Tuber crops are major sources of carbohydrates, thus play a key role in food safety. The starchy root of tuber crops can be used for various purposes like food, livestock feed, raw material in industry mainly for starch production etc. As most of the tuber crops are compatible with the farming systems, resistant to drought and withstand aberrant rainfall conditions, farmers follows rainfed cultivation of tuber crops. Anyhow water deficit stress occurring during the critical phases would adversely affect the ultimate performance of tuber crops and judicious use of water will result maximum yield. This review paper aims to know the water requirement of major tuber crops (Potato, Cassava, Sweet Potato, Amorphophallus, Taro and Tannia) and influence of water management in their yield potential.

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“…Irrigation is an essential water management tool for crop cultivation to form growth tissue in an active plant. Cassava is no exception, even though it is known to be a reasonably tolerant crop in terms of drought compared to cereals and other crops (Odubanjo et al, 2011;Oshunsanya and Nwosu, 2018). The amount, quality, frequency and method of water applied can affect the growth, starch content and yield of cassava (Olanrewaju et al, 2009), especially during a dry period, which can last for 5-6 months in Thailand (Aina et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Effect of Soil Moisture and Determination of Critical Soil Moisture Contents of Cassava

Machikowa

Thong-ob

Wonprasaid

2020

IJARe

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The aims of this research were to investigate the effects of soil moisture on cassava growth and physiological processes and to determine the critical soil moisture contents. To fulifll the research objectives, cassava was grown under five levels of soil moisture, including 50, 40, 30 and 20% of soil available water holding capacity (AWHC) along with control (no irrigation). Physiological traits and plant growth parameters were measured. The results showed that cassava grown under 50% of AWHC exhibited the highest photosynthesis rate, stomatal conductance, predawn leaf water potential and chlorophyll activity. All physiological traits decreased significantly when the moisture content was less than 40 and 20% of AWHC in sandy clay loam and loamy sand soil, respectively. Predawn leaf water potential was used to determine the critical point of soil moisture. It was found that the critical soil moisture contents were 39.0 and 15.7% of AWHC in sandy clay loam and loamy sand soil, respectively.

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Soil-Water-Crop Relationship: A Case Study of Cassava in the Tropics

Cited by 8 publications

References 20 publications

Tuber yield, morphology, and chemical properties variability of sweet cassava germplasm

Tuber yield, morphology, and chemical properties variability of sweet cassava germplasm

Water Requirement of Major Tuber Crops: A Review

Effect of Soil Moisture and Determination of Critical Soil Moisture Contents of Cassava

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