HARVEST :: Browsing by Author "Slinkard, A.E."

Browsing by Author "Slinkard, A.E."

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1995 update on essential oils in Saskatchewan spice crops
(1996-02-22) Arganosa, G.C.; Slinkard, A.E.; Sosulski, F.W.
1996 update on essential oils in Saskatchewan spice crops
(1997-02-20) Arganosa, G.C.; Slinkard, A.E.; Sosulski, F.W.
Agronomic studies on spice crops
(2000-02-22) Slinkard, A.E.; Gan, Y.; Miller, P.R.
Annual grain crops for forage production 1994 update on essential oils in Saskatchewan spice crops
(1995-02-23) Sosulski, F.; Slinkard, A.E.; Arganosa, G.
Ascochyta resistance in lentil (Lens culinaris Medikus)
(1993-02-25) Andrahennadi, C.P.; Slinkard, A.E.; Vandenberg, A.
The genetic basis of resistance to Ascochyta blight was determined for 20 lentil genotypes and six F2 populations. Plants were space planted in rows in the field with adjacent spreader rows of the susceptible check Spanish Brown. Plants were inoculated by spreading infested crop debris and mist irrigation was used to create epiphytotic conditions. The disease reaction was measured by rating leaf symptoms on a 1-9 scale and by plating random samples of seed from each F2 plant on PDA agar to estimate percent seed-borne infection. Lines PI 339283, PI 374118, ILL 5588 and PR 86-360 had high resistance levels with less than 7.5% seed-borne infection. Laird, Eston, CDC-Richlea and other lines were susceptible with seed-borne infection as high as 57%. Indianhead lentil was moderately resistant. Analysis of F2 data from the six segregating populations suggests that ILL 5588 has one dominant gene and Indianhead has one recessive gene for resistance to Ascochyta blight of lentil.
Canning quality traits of field pea cultivars grown at various locations in Saskatchewan
(1998-02-19) Arganosa, G.C.; Vandenberg, A.; Tyler, R.T.; Slinkard, A.E.
Canning quality traits of kabuli chickpea cultivars grown at various locations in Saskatchewan
(1998-02-19) Arganosa, G.C.; Vandenberg, A.; Nleya, T.; Tyler, R.T.; Slinkard, A.E.
The chickpea crop in 1998
(1998-02-19) Vandenberg, A.; Araganosa, G.; Slinkard, A.E.
Chickpeas for Saskatchewan
(1995-02-23) Slinkard, A.E.; Vandenberg, A.
Contribution of hay harvest losses and "leaf fall" to N cycling and the N nutrition of intercropped alfalfa and bromegrass
(1993-02-25) Tomm, G.O.; van Kessel, C.; Slinkard, A.E.; Embrapa, P.F.
A significant amount of forage plant biomass is deposited on the ground as senescent leaves, petioles and flowers (leaf fall). In addition, a varying amount of plant biomass is lost during harvest of hay crops (hay loss). These two sources of plant biomass and nitrogen (N) were quantified over a 3-year period in replicated plots of single or inter-cropped alfalfa (Medicago sativa cv. Beaver) and meadow bromegrass (Bromus riparius Rhem. cv. Fleet) swards grown under irrigation near Outlook. Another experiment in the same field provided an estimate of the quantity of N in the hay losses or leaf fall that was recycled between or within the two species. Alfalfa plants grown on 15N-enriched soil supplied 15N-labelled leaf fall and hay loss biomass which was applied to inter-cropped swards. The proportion15of N taken up by bromegrass or alfalfa was estimated. Similarly, N labelled bromegrass biomass was applied to inter-cropped swards and the uptake by each of the species was estimated. Leaf fall from alfalfa, bromegrass or alfafa+bromegrass swards contained an average of 22, 6, and 16 kg N ha-1 yea-1, respectively, whereas hay losses returned an average of 26, 9, and 22 kg N ha-1 year-1, respectively. The accumulation of 15N from those two N sources was detected in neighbouring plants as early as 13 days following application of the simulated leaf fall or hay losses.
Development of a laboratory protocol for evaluating canning quality in dry bean
(1997-02-20) Balasubramanian, P.; Slinkard, A.E.; Tyler, R.T.; Vandenberg, A.
Results of studies on the effect of canning variables on canning quality traits were used to develop a modified laboratory protocol for evaluating canning quality of navy, black and pinto beans. Calcium concentration was inversely related to all traits, except texture and appearance. Blanching navy and pinto beans at 88°C and black beans at 70°C gave the highest percent washed drained weight (PWDWT). Thermal processing at 115.6 C for 45 minutes was essential to attain food safety and commercial sterility. The laboratory protocol resulted in lower means for quality traits than the industry protocol. The PWDWT was significantly different between protocols in pinto bean only. The laboratory protocol readily detected differences in various quality attributes among commercial seed samples within each bean class.
Development of niche market pulse crops for Saskatchewan
(1994-02-24) Slinkard, A.E.; Vandenberg, A.; Hucl, P.
Drought studies in dry bean (Phaseolus vulgaris L.)
(1995-02-23) Nleya, T.M.; Slinkard, A.E.; Vandenberg, A.
Dry beans and chickpeas – what’s the next step?
(1997-02-20) Vandenberg, A.; Slinkard, A.E.
Dry beans in Saskatchewan
(1995-02-23) Vandenberg, A.; Slinkard, A.E.; Hucl, P.J.
Effect of available soil N on growth, yield and N, fixation by common bean
(1997-02-20) de Silva, N.K.D.C.; Slinkard, A.E.; Walley, F.L.
Two common bean cultivars were grown in a low nitrogen (N), stubble field with and without Rhizobium inoculation. Four rates of nitrogen fertilizer were applied. In addition, double enriched ammonium nitrate (10% atom excess) was used in microplots to estimate percentage nitrogen derived from the atmosphere (%Ndfa). Increased rates of N fertilizer resulted in increased plant height and yield and decreased %Ndfa. Inoculation of bean with granular Rhizobium inoculant enhanced N, fixation and improved seed yield.
Effect of fungicide seed treatment on rhizobial survival and nodulation of chickpea
(1999-02-25) Kyei-Boahen, S.; Walley, F.L.; Slinkard, A.E.
Chickpea seeds are often treated with fungicides to prevent losses due to seed-borne pathogens and damping off. In addition, rhizobia are applied to the seeds to ensure effective nodulation and subsequent nitrogen fixation. Although reports are conflicting, several studies have conclusively shown that some of these chemicals are incompatible with Rhizobium. Furthermore, it was demonstrated that different species and strains of the same species of Rhizobium differed in their sensitivity toward various fungicides. Therefore, the objectives of this study were to examine the effect of four commercial fungicides, Apron, Thiram (Arrest 75W®), Crown and Captan on 1) the survival of Rhizobium ciceri strain BCF 32 inoculated onto chickpea seeds and 2) nodulation, nitrogen fixation and dry matter production of chickpea in the growth chamber.
Effect of inoculum placement on chickpea inoculation
(1998-02-19) Kyei-Boahen, S.; Walley, F.L.; Slinkard, A.E.
Effects of metalaxyl on agronomic traits of zero tannin lentil
(1992-02-20) Matus, A.; Slinkard, A.
The seed coat of lentil (Lens culinaris Medikus) contains tannin precursors which oxidize during storage, discolouring seed from the normal olive green to deep brown. Seed coats of zero tannin (ZT) lentil do not discolour during storage due to the absence of these tannin precursors. ZT lentil has a thinner, more delicate seed coat than standard lentils. Thus, ZT lentil seed is highly susceptible to mechanical damage and germinating seeds have a high frequency of seed rot. The effect of fungicide on seedling emergence and other agronomic traits of ZT lentil was investigated using a split-plot design replicated three times for two years. The main effect was lentil lines and the split effect was untreated seed vs. seed treated with the fungicide metalaxyl (6g a.i./100 kg seed). Seedling emergence of ZT lentil was greatly improved following fungicidal seed treatment with metalaxyl. Fungicidal seed treatment had no effect on agronomic traits of ZT lentil, other than seedling emergence and seed yield. Commercial production of ZT lentil must involve fungicidal seed treatment and special precautions during seeding, harvesting, and cleaning to minimize mechanical damage to the seeds. These ZT lines did not yield competitively with Eston or Laird lentil. A second cycle of hybridization of the better ZT lentil lines to adapted lines followed by selection for yield should increase the frequency of high yielding ZT lentil lines.
Evaluating resistance to Mycosphaerella blight of pea
(1998-02-19) Wang, T.F.; Slinkard, A.E.; Vandenberg, A.

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