THE EFFECT OF BORON ON THE GROWTH AND SEED PRODUCTION OF ALSIKE CLOVER <i>TRIFOLIUM HYBRIDUM L</i>.

Montgomery, F. H.

doi:10.1139/b51-048

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…Clearly, much remains to be discovered about threshold B levels. These experiments and studies by Montgomery (17) with alsike clover and Holley and Dulin (12) with cotton indicate optimum B levels for reproduction are higher than those for vegetative growth. Fall B sprays result in high but transient reproductive tissue B concns which stimulate fruit set in the spring.…”

Section: Resultsmentioning

confidence: 55%

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Fruit Set of ‘Italian’ Prune Following Fall Foliar and Spring Boron Sprays1

Callan

Thompson

Chaplin

et al. 1978

J. Amer. Soc. Hort. Sci.

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A pre- or postharvest foliar B application was found to increase fruit set of ‘Italian’ prune (Prunus domestica L.). A prebloom B spray failed to increase set. Neither fall nor spring applications influenced the amount of fruit lost in the midsummer or “blue” drop. All trees involved in the experiment had adequate B by the standard index of tree nutrition, August mid-shoot leaf analysis. Incipient B deficiency did not appear to be involved. Fall foliar B increased B levels in dormant bud and spur tissues and in flower buds and flowers. A prebloom B spray increased B levels of floral tissues to a lesser degree. The highest B concentration was found in the ovary. Boron concentration in flower buds in April following a fall B spray was as much as five times the amount found in mid-shoot leaves in August. August mid-shoot leaf analysis revealed higher levels in leaves from trees treated the previous fall in only one of the 2 years. Several morphological and physiological effects of the fall B spray were observed. Among these were a slight delay in the time of bud break, a decrease in the size of flower buds and mature flowers accompanied by reduction of style and pedicel length, and a decrease in pollen germinability. B level of pistil and pollen had no effect on in vivo pollen tube growth rate.

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Section: Resultsmentioning

confidence: 55%

“…Kjeldahl technique (17). All orchards had adequate levels of both B and N. Boron was applied as a commercial product containing 20.5% B (Solubor).…”

mentioning

confidence: 99%

Fruit Set of ‘Italian’ Prune Following Fall Foliar and Spring Boron Sprays1

Callan

Thompson

Chaplin

et al. 1978

J. Amer. Soc. Hort. Sci.

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“…Large responses to B in seed yield have been reported on soils low in available B from North America and Europe for lucerne (Grizzard & Received 20 December 1982; revision 14 February 1983 Matthews 1942;Piland et al 1944), white clover (Johnson & Wear 1967;Spooner & Huneycutt 1978), alsike clover (Montgomery 1951), and red clover (Agerberg & Roots 1962 quoted by Eriksson 1979). In this country, there has been only one report of work investigating the effect of B on legume seed production (Cullen 1968), but B had no effect probably because there was sufficient B in the soil to supply the crop's requirement.…”

Section: Introductionmentioning

confidence: 99%

Effect of boron application on seed production of New Zealand herbage legumes

Sherrell¹

1983

New Zealand Journal of Experimental Agriculture

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Six rates of boron (B) were applied to 2 white clovers (Trifolium repens L.), alsike clover (Trifolium hybridum L.), 3 red clovers (Trifolium pratense L.), and lucerne (Medicago sativa L.) in the glasshouse on a soil which was known to be low in available B. None of the 7 cultivars produced seed without added B, and red clovers also did not produce seed at low B rates. Maximum seed yields and the amount of B required to produce them were higher for red clovers and lucerne than for white and alsike clovers. The increase in seed yield of lucerne from B application was due entirely to an increase in the number of flowers formed and setting seed. In contrast, increases in white clover seed yields were due entirely to increases in the number of seeds per flower. For red clovers, increases in both the number of flowers and seeds per flower contributed to increased seed yields. It is concluded that B application may be beneficial in areas such as Marlborough and Canterbury for commercial herbage legume seed crops.

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Use of an (n, ?) nuclear reaction to study the long-distance transport of boron in trifolium repens after foliar application

Martini

Thellier

1980

Planta

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The growth of white clover (Trifolium repens L.) is severely inhibited by boron starvation, but a foliar treatment with boric acid can transitorily alleviate the deficiency symptoms. The (10)B(n ,α)(7) Li nuclear reaction has been used to study boron transport in the plant after foliar application. More than 98% of the boron supplied remained at the point where it was applied to the leaves, and less than 2% was useful to the growth of the treated plant. This small "efficient" portion of boron was quite mobile. It was distributed to the different parts of the plant, then was transferred from the oldest parts to the newly formed leaves. Physiological and agronomical implications of these data are discussed.

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THE EFFECT OF BORON ON THE GROWTH AND SEED PRODUCTION OF ALSIKE CLOVER TRIFOLIUM HYBRIDUM L.

Cited by 6 publications

References 3 publications

Fruit Set of ‘Italian’ Prune Following Fall Foliar and Spring Boron Sprays1

Fruit Set of ‘Italian’ Prune Following Fall Foliar and Spring Boron Sprays1

Effect of boron application on seed production of New Zealand herbage legumes

Use of an (n, ?) nuclear reaction to study the long-distance transport of boron in trifolium repens after foliar application

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