Distribution and redistribution of dry matter in perennial fodder crops.

Sonneveld, A.

doi:10.18174/njas.v10i5.17583

Cited by 12 publications

(6 citation statements)

References 2 publications

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“…Reporting on the decline in tiller numbers he observed in Festuca rubra, Sonneveld (1962) concluded that tiller formation stopped following elongation of flowering culms and that part of the tillers was even emptied and spent. Reviewing literature on this subject, Humphreys (1966a) pointed out that inhibition of tillering has often been related to the onset of the reproductive stage, the effect disappearing during seed maturation.…”

Section: Discussionmentioning

confidence: 99%

Experimental studies on seed production of tropical grasses in Kenya. 2. Tillering and heading in seed crops of eight grasses.

Boonman¹

1971

NJAS

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Tillering in seed crops grown undisturbed for 6 months was studied over 2 years in cultivars of Setaria sphacelata, Chloris gayana, Panicum coloratum, Panicum maximum and Brachiaria ruziziensis. Tiller numbers rose to a maximum around the time of initial head emergence (5-10 heads/m2), followed by a decline and finally a levelling off. Head emergence was found to continue in some cv. for over 3 months. The weight/tiller increased at a linear rate. Tiller numbers never exceeded 1900/m2. Tillers were less numerous but were heavier in the year of sowing than in the subsequent year. Total dry weights of tillers were also highest in the first year. Seed yield was significantly correlated with degree of concentrated head emergence and percentage of heading tillers in a cultivar. It is suggested that, within cv., plants with heavier tillers may produce higher seed yields. Cv. within species can be identified according to date of initial head emergence. A type of culm branching is described in which tillers develop into flowering culms out of elevated nodes of erect parental culms. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Section: Discussionmentioning

confidence: 99%

Experimental studies on seed production of tropical grasses in Kenya. 2. Tillering and heading in seed crops of eight grasses.

Boonman¹

1971

NJAS

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“…Therefore, the relative activity of the isolated invertase is approximately one-third that Little is known about the functional reason for polymerization of sugars to fructosans. Many plants which contain fructosans are species which endure climatic or management induced stresses during their life cycle (Eagles, 1967;May, 1960;Sonneveld, 1962). In the past, these researchers have pointed out the importance of reserve carbohydrates to regrowth following a dormant period or harvesting.…”

Section: Resultsmentioning

confidence: 99%

.beta.-Fructofuranosidase and invertase activity in tall fescue culm bases

Smith¹

1976

J. Agric. Food Chem.

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“…Carbohydrate reserves are important in the management of perennial forage plants. These reserves serve as an energy source for regrowth when photosynthate production does not meet the metabolic needs of the plant (Sonneveld, 1962). Several studies evaluating carbohydrate reserves in birdsfoot trefoil roots have been reported.…”

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Birdsfoot Trefoil Management. I. Root Growth and Carbohydrate Storage

Alison

Hoveland

1989

Agronomy Journal

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Management research is lacking for birdsfoot trefoil (Lotus corniculatus L.) cultivars adapted to the southeastern USA. This study was conducted to determine the effect of harvest interval and stubble height on root growth and carbohydrate storage of five birdsfoot trefoil entries. Two field experiments were conducted on a Cecil sandy loam (clayey, kaolinitic, thermic Typic Hapludult) soil near Athens, GA. One experiment consisted of two birdsfoot trefoil entries ('Fergus' and GA 1), three harvest intervals (21, 28, and 42 d), and two stubble heights (5 and 10 em). The other experiment had five birdsfoot trefoil entries ('AU Dewey', 'Dawn', Fergus, GA 1, and 'Noreen') harvested on 21-d intervals at three stubble heights (3, 5, and 10 em). The AU Dewey and GA 1 entries, selected in Alabama and Georgia, respectively, had greater root weights and diameter than the northern-developed cultivars. In the spring following 2 yr of harvest, root weights of Fergus and GA 1 were reduced 17 and 26%, respectively, when the harvest interval of the previous 2 yr had been 21 instead of 42 d. Raising the stubble height reduced fluctuations in carbohydrate reserves during regrowth. Total nonstructural carbohydrate (TNC) levels were greater in midseason when the stubble height was 10 instead of 3 em. A positive correlation was found between spring herbage yields and the mean TNC level of the 2 preceding years. This correlation suggests a cumulative effect by carbohydrate levels on vigor of birdsfoot trefoil stands and management should be designed to maintain relatively high TNC levels.

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Distribution and redistribution of dry matter in perennial fodder crops.

Abstract: A review.-R.B. (Abstract retrieved from CAB Abstracts by CABI’s permission)

Cited by 12 publications

References 2 publications

Experimental studies on seed production of tropical grasses in Kenya. 2. Tillering and heading in seed crops of eight grasses.

Experimental studies on seed production of tropical grasses in Kenya. 2. Tillering and heading in seed crops of eight grasses.

.beta.-Fructofuranosidase and invertase activity in tall fescue culm bases

Birdsfoot Trefoil Management. I. Root Growth and Carbohydrate Storage

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