Black Walnut:Juglans nigra and Walnut Extracts Benefits.

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Walnut Varieties and Grading.

Walnut Extract INCI Name Juglans Nigra Extract CAS:96690-56-1 EINECS ELINCS No 306-252-0 Green Black Walnut Extract Persian Walnut Extract Semen Juglandis Carya Alba Extract mockernut hickory Walnut kernel Semen Juglandis Hu Tao Ren photo picture image There are several varieties of Walnut. Most walnuts are equivalent. However, in China the black walnut is often favored since black is the color of the Kidney. Also, organic walnuts are sometimes available---these are best. The thin outer skin of the kernel is considered to be slightly toxic. If you are the fastidious type, you may scrub this off to improve both the effect and the taste of the walnuts (this skin has a bitter taste). Some Chinese suppliers have organically grown, peeled walnuts. These are the connoisseurs choice.

 Chandler: (P.P. #4388) Harvest mid-season; large smooth oval nut, with good shell seal, and high quality kernel. Kernel color excellent, light grade consistently 90% or better. Has potentially high fruitfulness with 80-90 percent of lateral buds fruitful. Medium size tree is a moderately vigorous and semi-upright, highly productive tree. Pollinizers are Cisco and Scharsch Franquette.

 Chico: Small, upright, early harvest, highly productive tree. Nut size small with excellent kernel quality. Due to smaller size trees and a very high percentage of lateral pistillate; bloom 90-100%. It is well suited for high density plantings. Pollinizers are Payne, Serr or Sunland.

 Cisco:  Its main attribute is as a pollinizer for Chandler and Howard. In growth habits Cisco is semi-upright and a small tree. Large nuts, but there can be problems with kernel quality.

 Eureka: Tree is very large, somewhat spreading growth habit. Harvest early to mid-season. Nut is medium size elongated with a good shell seal.

 Hartley: Harvest is mid-season. The nut is large, well sealed with high percentage of light kernels nearly 90%. Tree size is moderate to large, moderately spreading with good vigor on fertile soil. Hartley needs 40 to 45 foot spacing for mature tree. Most widely planted walnut variety in California. Acceptable pollinizers are the late blooming Amigo and Scharsch Franquette.

 Howard: (P.P. #4405) - Harvest mid-season; nut is large, round and smooth with a good seal. Kernel quality is excellent at 90% light, and kernel percentage is 50%. Tree size is small to medium and semi-upright with moderate vigor, which makes it a good candidate for high density plantings. Pollinizers are Cisco or Scharsch Franquette.

 Payne: Early harvest, nut size is medium to small. Shell seal is very good. Nuts average 48% kernel with approximately 50% light. Yield potential is high to very high. Approximately 80% to 90% of the lateral buds on shoots are fruitful. Very productive. Tree is medium round shaped. Heavy pruning is required when trees are young to avoid overbearing.

 Scharsch Franquette: Late harvest. Nut size is small and well-sealed, very good quality light kernel. Trees are large and require 40 to 50 foot spacing. Vigor is moderate to high and tree shape is upright. Good pollinizer for Hartley and Chandler.

 Serr: Harvest is early to mid-season. Nut size is large, with a fair to good shell seal. Kernel is 60% light. Percentage of kernel is high at 59%. Serr planted on shallower, heavier, or less fertile soil seems to bear better. Serr tree size is large and requires a spacing of at least 40 feet. Shape is moderately spreading and vigor is good to excessive. Suitable pollinizers include Chico and Tehama.

 Tulare: (P.P. #8268) Harvest mid-season. The nut and kernel are large, with a well-sealed, nearly round nut. The Tulare requires no pollinizer. Tree has upright growth habit, moderately vigor, suitable for hedgerow and other high-density planting systems.

 Vina: Harvest early to mid-season; medium size pointed nut, with a good shell seal. Kernel color is good at 60% light with 48% kernel. Tree size is small to medium, vigor is moderate to good and highly productive. Pollinizers are Chico, Chandler, Howard and Tehama.

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citations1.Black Walnut:Juglans nigra and Walnut Extracts Benefits.

last edit date:10th,June.2009.