Field Drought Tolerance of a Soybean Plant Introduction

Sloane, Richard; Patterson, Robert; Carter, Thomas E.

doi:10.2135/cropsci1990.0011183x003000010027x

Cited by 154 publications

(119 citation statements)

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“…Under conditions of water shortage in the soil, in which nutrient absorption, especially nitrogen absorption, is reduced, it appears that there should be a correspondence between the available water in the soil and the nitrogen applied. This will, on the one hand, reduce the cost of corn production and, on the other hand, will prevent the unnecessary application of nitrogen, which is not usually accompanied by an increase in yield (Solan et al, 1990). Therefore, in this research, we studied the effects of plant density and nitrogen application on some of the qualitative and quantitative traits of silage corn cultivars.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Seed Corn Single Crosses SC 704 and SC 770 Response to Different Plant Densities and Nitrogen Levels

Yasari¹,

Noori²,

Haddadi³

2012

JAS

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An experiment was conducted at the Research Station of Gharakheil of Mazandaran Province, Iran, to evaluate the response of seed corn single crosses SC 704 and SC 770 to different plant densities and nitrogen levels during summer 2010. The soil at the site of the experiment had a loamy texture consisting of 48% sand, 35% silt, and 17% clay, with pH of 7.81, and electrical conductivity of 0.55 mmohs/cm. The experiment was performed in the form of factorial-split using the randomized complete block design. The main factor investigated was the two corn cultivars of Single Cross 704 and Single Cross 770. The sub-factors included three levels of applied nitrogen: the control treatment B1 receiving no nitrogen, treatment B2 receiving 250 Kg nitrogen per hectare and treatment B3 receiving 350 Kg of nitrogen per hectare, along with three plant density levels were C1, C2, and C3, with 75000, 85000, and 95000 plants per hectare, respectively. Results showed that the effect of the cultivar on the trait of grain yield was significant at the probability level of 5 percent.

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Section: Introductionmentioning

confidence: 99%

Comparison of Seed Corn Single Crosses SC 704 and SC 770 Response to Different Plant Densities and Nitrogen Levels

Yasari¹,

Noori²,

Haddadi³

2012

JAS

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“…In this study, different cultivars were showing significant difference in xylem dimension ( Figure 7) and maximum diameter was reported from the genotype number 22 while minimum from the genotype number 3 and 17 genotypes, respectively ( Figure 10C, Figure 14Q). Assimilate retranslocation is universal trait with intermediate heritability (Sloane et al, 1990).…”

Section: Radial Dimension Of Big Xylem Vessel (Rdbxv)mentioning

confidence: 99%

“…It is an indication of extra capacity to store food material, which is useful during stress conditions. According to Sloane et al (1990) yield selection in the absence of drought is an effective method to improve yield in dry areas .…”

Section: Distance Between Vascular Bundle To Epidermis (Dbvbe)mentioning

confidence: 99%

“…Also, Blum (1996) suggested that genotypes with high yield may not be stress resistant, so increasing the yield in these genotypes may be solely due to their high potential yield, and not due to stress resistance mechanism. However, Sloane believed that yield selection in the absence of drought is an effective method to improve yield in dry areas (Sloane et al, 1990).…”

Section: Introductionmentioning

confidence: 99%

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Evaluating drought resistant wheat cultivars based on stem anatomical characteristics

Abbasi¹,

Faghani²,

Khani³

et al. 2017

JEBAS

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Water stressed have vital effect on the various anatomical, physiological and bio-chemical processes, which are controlled by genetic and prevailing environment. In present study, 25 wheat (Triticum aestivum L.) cultivars, which have been released over 40 years in Iran, were evaluated in terms of stem physiological and anatomical changes at Iran Agricultural Research Station. During growing season data were collected and finally crop was harvested in June and various anatomical aspects like Thickness of stem (TS), Thickness of fiber (TF), Tangential dimension of collenchymas cells (TDC), Tangential dimension of vascular bundle (TDVB), Radial dimension of vascular bundle (RDVB), Radial dimension of big xylem vessel (RDBXV), Tangential dimension of phloem bundle (TDPB), Distance between vascular bundle to Epidermis (DBVBE), Thickness of epidermal cell (TE) that are integral part of drought resistance were studied. Predominantly drought resistant genotypes were recorded with anatomical aspects which play major role in imparting drought resistance. Among the studied 25 genotypes, genotype number 7, 21 and 25 showed maximum drought resistance characteristics collectively and these can be used as parent cultivars for future breeding programs.

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“…There is some disagreement in the literature concerning the occurrence and importance of OA in soybean. Several studies have reported moderate levels of OA in soybean (Meyer and Boyer 1972;Cortes and Sinclair 1986;Sloane et al 1990;Morgan 1992) whereas Sionit and Kramer (1977) and Turner et al (1978) found no evidence of OA in leaves of, respectively, controlled environment or field grown plants. By analogy with pigeonpea, if OA exists in soybean, it may conceivably provide some capacity to maintain tissue water status above RWC c .…”

Section: Introductionmentioning

confidence: 99%

Response to terminal water deficit stress of cowpea, pigeonpea, and soybean in pure stand and in competition

Likoswe

Lawn

2008

Aust. J. Agric. Res.

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Abstract. The response to terminal water deficit stress of three grain legumes, soybean, cowpea and pigeonpea, was evaluated in plants grown in large tubes, in competition with either the same species or one of the other two species. The aim was to explore how species differences in drought response affected water use, growth and survival of plants in pure stand and in competition. Two plants, comprising the test species and its competitor, were grown in each tube. Water was withheld 26 days after sowing by which time each plant had at least three fully expanded trifoliolate leaves. Leaf water status and plant growth were measured through destructive samples when 80% and 90% of the estimated plant available water (PAW) was depleted and at plant death, while PAW depletion, node growth and leaf survival were monitored at 2-3 day intervals until the last plants died (61 days after water was withheld). In pure stand, the rate of PAW depletion was initially slowest in cowpea despite its much larger leaf area, and fastest in soybean. Node growth was most sensitive in cowpea, ceasing at 65% PAW depletion compared with 85% PAW depletion in pigeonpea and soybean, so that the latter two species produced relatively more nodes after water was withheld. However, senescence of the lower leaves was most rapid in soybean and slowest in cowpea. Cowpea and pigeonpea extracted almost all PAW and died an average 18 days and 14 days, respectively, after maximum PAW depletion. In contrast, soybean died before 90% of PAW was depleted and so in pure stand used less water. There were otherwise only minor differences between the species combinations in the timing and maximum level of PAW depletion. The ability of cowpea and pigeonpea to maintain leaf water status above lethal levels for longer was achieved through different means. Cowpea relied primarily on dehydration avoidance and maintained tissue water status higher for longer, whereas pigeonpea demonstrated greater dehydration tolerance. While significant levels of osmotic adjustment (OA) were identified in soybean and pigeonpea, OA appeared to be of limited benefit to leaf survival in soybean. Pigeonpea invested significantly more total dry matter (TDM) in roots than either cowpea or soybean. Cowpea survived longest in pure stand whereas pigeonpea and soybean survived shortest in pure stand, suggesting that the dehydration avoidance response of cowpea was more effective in competition with like plants whereas the dehydration tolerance strategies of pigeonpea and soybean were least effective when competing against like plants. On average, TDM per plant ranked in the order cowpea > soybean > pigeonpea, largely reflecting initial differences in plant size when water was withheld. However, there was an inverse relation between TDM of a species and that of its competitor, so that in effect, water not used by a given plant to produce TDM was used by its competitor and there were no differences in TDM production per tube.

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Field Drought Tolerance of a Soybean Plant Introduction

Cited by 154 publications

References 0 publications

Comparison of Seed Corn Single Crosses SC 704 and SC 770 Response to Different Plant Densities and Nitrogen Levels

Comparison of Seed Corn Single Crosses SC 704 and SC 770 Response to Different Plant Densities and Nitrogen Levels

Evaluating drought resistant wheat cultivars based on stem anatomical characteristics

Response to terminal water deficit stress of cowpea, pigeonpea, and soybean in pure stand and in competition

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