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You searched for: Author "C. R. Tischler" Remove constraint Author: "C. R. Tischler"
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1. Modifying Seedling Photomorphogenesis in Kleingrass by Recurrent Selection

Author:
C. R. Tischler,   et al.   ; P. W. Voigt;     Show all 2 Author
Source:
Crop science 1995 v.35 no.6 pp. 1613-1617
ISSN:
0011-183X
Subject:
Panicum coloratum; seedlings; plant breeding; recurrent selection; morphogenesis; phytochrome; light; internodes; height; shoots; adventitious roots; population
Abstract:
... In emerging Panicoid grass seedlings, elongation of the subcoleoptile internode (SCI) stops shortly after the coleoptile tip receives a red light stimulus. This results in final placement of the crown node (CN) near the soil surface. Because adventitious roots originate from the CN, excessive elongation of the SCI places the CN above the soil surface, adversely impacting seedling establishment. A ...
DOI:
10.2135/cropsci1995.0011183X003500060016x

2. Carbon storage after long-term grass establishment on degraded soils

Author:
C. R. Tischler,   et al.   ; K. N. Potter; H. A. Torbert; H. B. Johnson;     Show all 4 Authors
Source:
Soil science 1999 v.164 no.10 pp. 718-725
ISSN:
0038-075X
Subject:
soil organic matter; carbon; land use; prairie soils; grassland soils; agricultural soils; soil management; temporal variation; duration; carbon sequestration; Texas
Abstract:
... Recent concern about global warming has led to attempts to estimate the effects of management on carbon sequestration in soil. The objective of this study is to determine the amount of soil organic carbon (SOC) degraded by agricultural practices and the rate of carbon sequestration in soils after restoration of grass for various periods of time. The SOC contents of previously cultivated clay soils ...
DOI:
10.1097/00010694-199910000-00002

3. Leaf Characteristics Variation in Hybrid Lovegrass Populations

Author:
C. R. Tischler,   et al.   ; P. W. Voigt;     Show all 2 Author
Source:
Crop science 1994 v.34 no.3 pp. 679-684
ISSN:
0011-183X
Subject:
crossing; Eragrostis curvula; hybrids; genetic variation; leaves; plant morphology; apomixis; waxes; transgressive segregation; parentage; agronomic traits; genetic recombination; population
Abstract:
... Apomictic plant breeding is being practiced in several turf and forage grasses. Variation released during apomictic breeding has been discussed, but few reports have quantified this variation. Our objectives were to characterize variation among lovegrass, Eragrostis curvula (Schrad.) Nees, hybrids and their parents, compare parents and hybrids, and determine interrelationships among the characteri ...
DOI:
10.2135/cropsci1994.0011183X003400030015x

4. Seed Dormancy and Its Alleviation in Lovegrass Hybrids

Author:
C. R. Tischler,   et al.   ; P. W. Voigt; M. M. Poverene;     Show all 3 Authors
Source:
Crop science 1996 v.36 no.6 pp. 1699-1705
ISSN:
0011-183X
Subject:
Eragrostis curvula; hybrids; seed dormancy; seed germination; dormancy breaking; seed treatment; sodium hypochlorite; alcohols; light
Abstract:
... Weeping lovegrass, Eragrostis curvula (Schrad.) Nees, was introduced to the Americas for soil conservation. It is a useful forage only if intensively managed. Apomictic lovegrass hybrids, developed from introductions with higher forage quality, need to be evaluated in multiple environments to determine their potential. Studies were to be established in Argentina the same year seed was produced in ...
DOI:
10.2135/cropsci1996.0011183X003600060047x

5. Post-Harvest Seed Dormacy Effects on Kleingrass Germination Following Simulated Digestion by Cattle

Author:
C. R. Tischler,   et al.   ; W. R. Ocumpaugh; L. S. Valle;     Show all 3 Authors
Source:
Crop science 1995 v.35 no.1 pp. 260-263
ISSN:
0011-183X
Subject:
Panicum coloratum; seed germination; rumen fermentation; dormancy breaking; viability; seed dormancy
Abstract:
... Grass seed germinability declines linearly with increased exposure to in vivo and in vitro digestion, but the factors that regulate loss of seed germinability are unknown. One potential mechanism of seed survival during digestion is seed dormancy. A recently developed in vitro procedure to simulate grass seed passage through the digestive system of cattle (Bos spp.) has permitted the evaluation of ...
DOI:
10.2135/cropsci1995.0011183X003500010047x

6. Variability in Leaf Characteristics and Water Loss in the Weeping Lovegrass Complex

Author:
C. R. Tischler,   et al.   ; P. W. Voigt;     Show all 2 Author
Source:
Crop science 1990 v.30 no.1 pp. 111-117
ISSN:
0011-183X
Subject:
Eragrostis curvula; drought tolerance; epicuticular wax; genetic background; germplasm; leaf area; leaf rolling; leaf width; leaves; rolling; transpiration; water content
Abstract:
... Epicuticular wax restricts water loss across the cuticle of plant leaves and is considered to aid in drought resistance. This conserving effect is roughly proportional to the amount of wax present. We measured wax levels, water loss, and leaf width and rolling characteristics of 19 lovegrasses, Eragrostis curvula (Schrad.) Nees, to determine if variation existed for these characteristics and the r ...
DOI:
10.2135/cropsci1990.0011183X003000010026x

7. Field Evaluation of Switchgrass Seedlings Divergently Selected for Crown Node Placement

Author:
C. R. Tischler,   et al.   ; H. W. Elbersen; W. R. Ocumpaugh; M. A. Hussey; M. A. Sanderson;     Show all 5 Authors
Source:
Crop science 1999 v.39 no.2 pp. 475-479
ISSN:
0011-183X
Subject:
Panicum virgatum; germplasm; seed germination; seedlings; soil depth; adventitious roots; artificial selection; genotype-environment interaction; seedling emergence; length; field experimentation; tillers; plant morphology; mesocotyls; leaves; shoots; Texas
Abstract:
... Excessive crown node elevation of warm-season grass seedlings is a major limitation to successful establishment. Crown node placement at or above the soil surface limits the opportunity for adventitious root development at the crown node. Switchgrass (Panicum virgatum L.) germplasm selected for low- (LC) and elevated- (EC) crown node placement (at 1.5 (μmol m⁻¹ s⁻¹ photosynthetic photon flux densi ...
DOI:
10.2135/cropsci1999.0011183X0039000200029x

8. Crown Node Elevation of Switchgrass and Kleingrass under Low Light

Author:
C. R. Tischler,   et al.   ; H. W. Elbersen; W. R. Ocumpaugh; M. A. Hussey; M. A. Sanderson;     Show all 5 Authors
Source:
Crop science 1998 v.38 no.3 pp. 712-716
ISSN:
0011-183X
Subject:
Panicum virgatum; germplasm; coleoptiles; Panicum coloratum; morphogenesis; seedlings; light intensity; soil depth; adventitious roots; genotype; seedling emergence; length; mesocotyls
Abstract:
... Excessive crown node elevation of warm-season grass seedlings is a major limitation to successful establishment. Crown node placement at or above the soil surface limits the opportunity for adventitious root development at the crown node. Kleingrass (Panicum coloratum L.) and switchgrass (Panicum virgatum L.) germplasm with low- (LC) and elevated- (EC) crown node placement [at 1.5 μmol m⁻² s⁻¹ pho ...
DOI:
10.2135/cropsci1998.0011183X003800030016x

9. Development and Characteristics of a Kleingrass Population with Reduced Post-Harvest Seed Dormancy

Author:
C. R. Tischler,   et al.   ; B. A. Young;     Show all 2 Author
Source:
Crop science 1987 v.27 no.6 pp. 1238-1241
ISSN:
0011-183X
Subject:
Panicum coloratum; seed germination; seed dormancy; recurrent selection; acids; temperature; photoperiod
Abstract:
... Kleingrass (Panicum coloratam L.) seed has a period of postharvest dormancy lasting approximately 0.5 yr. Six cycles of recurrent selection (selecting seedlings germinating within 3 days) for reduced post-harvest dormancy were used to generate a plant population (LD-6) in which germination of freshly harvested seed was approximately 90%, compared to 5 to 20% for unselected material. Four germinati ...
DOI:
10.2135/cropsci1987.0011183X002700060030x

10. Tray System for Measuring Drought Tolerance of Forage Grasses

Author:
C. R. Tischler,   et al.   ; P. W. Voight; B. A. Young;     Show all 3 Authors
Source:
Crop science 1991 v.31 no.6 pp. 1696-1699
ISSN:
0011-183X
Subject:
Eragrostis curvula; Panicum coloratum; introduced species; hybrids; screening; drought tolerance; measurement; germplasm; apomixis; forage crops; genotype
Abstract:
... A soil-tray system used in conjunction with a growth chamber was evaluated and used to determine drought tolerance of hybrids of Eragrostis curvula var. confera Nees (boer lovegrass, 57-4-69) ✕ E. curvula (Schrad.) Nees (common weeping lovegrass) and Plant Introductions (PIs) of kleingrass (Panicum coloratum L.). The stress endpoint was based on a predetermined threshold gravimetric water loss. Re ...
DOI:
10.2135/cropsci1991.0011183X003100060065x

11. Oil Treatment and Digestion Depresses Germination of Grass Seed

Author:
C. R. Tischler,   et al.   ; W. R. Ocumpaugh; D. H. D. Swakon; L. S. Valle;     Show all 4 Authors
Source:
Crop science 1994 v.34 no.5 pp. 1319-1323
ISSN:
0011-183X
Subject:
Panicum coloratum; Panicum virgatum; Zea mays; seed dressings; seed germination; phosphatidylcholines; digestion; secondary metabolites
Abstract:
... Numerous grasses, including Panicum spp., produce seed that survive passage through the digestive system of livestock and germinate in the feces. Managing livestock to distribute viable seed of desirable plants is a means of revegetating degraded grasslands. Potential germination of grass seeds declines with increased resident time in the gastrointestinal tract. Loss of seed germinability with inc ...
DOI:
10.2135/cropsci1994.0011183X003400050033x

12. Nonstructural Carbohydrate Utilization by Sorghum and Maize Shaded during Grain Growth

Author:
C. R. Tischler,   et al.   ; J. R. Kiniry; W. D. Rosenthal; T. J. Gerik;     Show all 4 Authors
Source:
Crop science 1992 v.32 no.1 pp. 131-137
ISSN:
0011-183X
Subject:
Sorghum bicolor; Zea mays; water stress; crop yield; filling period; dry matter accumulation; stems; leaves; source-sink relationships; grains; photosynthates; artificial shade; stress response; Texas
Abstract:
... Grain sorghum [Sorghum bicolor (L.) Moench] and maize (Zea mays L.) in dryland conditions can experience environmental stress during grain filling, causing increased dependency on stored assimilate. Estimates of maintenance costs and efficiency of production of grain from stored assimilate are important for modeling yield production in such conditions. Our primary objectives in this study were to ...
DOI:
10.2135/cropsci1992.0011183X003200010029x

13. Adventitious Root Initiation in Kleingrass in Relation to Seedling Size and Age

Author:
C. R. Tischler,   et al.   ; P. W. Voigt; E. C. Holt;     Show all 3 Authors
Source:
Crop science 1989 v.29 no.1 pp. 180-183
ISSN:
0011-183X
Subject:
root systems; Panicum coloratum; vigor; seedlings; plant establishment; maturity stage; seedling emergence; Texas
Abstract:
... Successful establishment of grasses depends on initiation and growth of adventitious roots. This study was undertaken to determine the minimum size and/or age requirement for adventitious root development in kleingrass (Panicum coloratum L.) seedlings, and also to determine which of these two factors is more important in controlling or regulating adventitious root development. Shoot mass was modif ...
DOI:
10.2135/cropsci1989.0011183X002900010039x

14. Non-Genetic Factors Affecting Primary Root Absence in Lovegrass and Kleingrass

Author:
C. R. Tischler,   et al.   ; P. W. Voigt;     Show all 2 Author
Source:
Crop science 1981 v.21 no.3 pp. 427-430
ISSN:
0011-183X
Subject:
Eragrostis curvula; Panicum coloratum; acid treatment; butyric acid; coleoptiles; mechanical damage; root growth; temperature
Abstract:
... Small percentages of seedlings of ‘Selection 75’ kleingrass (Panicum coloratum L.) and ‘Ermelo’ lovegrass [Eragrostis curvula (Schrad.) Nees] have no primary root at emergence. An investigation was undertaken to determine whether light, temperature, mechanical damage, or butyric acid treatment increases the frequency of seedlings having no primary root (no-root seedlings). In both grasses, frequen ...
DOI:
10.2135/cropsci1981.0011183X002100030018x

15. Seedling Characteristics and Rates of Seed Reserve Utilization of Wilman Lovegrass and Kleingrass

Author:
C. R. Tischler,   et al.   ; P. W. Voigt;     Show all 2 Author
Source:
Crop science 1983 v.23 no.5 pp. 953-955
ISSN:
0011-183X
Subject:
Panicum coloratum
Abstract:
... The objective of this study was to determine why wilman lovegrass (Eragrostis superba Peyr.) has a greater shoot mass (P < 0.01) at 14 days postemergence than does kleingrass (Panicum coloratum L.). Caryopses of both species contain the same amount of starch, but wilman lovegrass caryopses contain more protein and P (P < 0.01). Wilman lovegrass had a greater shoot mass than kleingrass at 3 and 7 d ...
DOI:
10.2135/cropsci1983.0011183X002300050033x