منابع مشابه
Chilling requirement of Ribes cultivars
It is usually thought that adequate winter chill is required for the full flowering of many temperate woody species. This paper investigates the sensitivity of blackcurrant bud burst and flowering to natural weather fluctuations in a temperate maritime climate, and compares a range of chill models that have been proposed for assessing the accumulation of winter chill. Bud break for four contras...
متن کاملevaluation of chilling requirement in four commercial grape cultivars
no sufficient of chilling is a major problem in producing temperate fruit in warm climates. so determination of chilling requirement of different cultivars of grape is important. the aim of this research was determination of chilling requirement of four grape vine commercial cultivars including: kolahdary, red rasin, yaghoti and white rasin that factorial experiment based on a completely random...
متن کاملParticle film affects black pecan aphid (Homoptera: Aphididae) on pecan.
Three species of aphids attack pecan foliage, Carya illinoensis (Wang.) K. Koch, and cause economic damage. We tested a kaolin-based particle film against one of these aphid species, black pecan aphid, Melanocallis caryaefoliae (Davis). Effect of particle film on host selection, adult mortality, and production of nymphs by M. caryaefoliae was tested on seedling pecans in the laboratory. Fewer M...
متن کاملUse of Blueberry to Study Genetic Control of Chilling Requirement and Cold Hardiness in Woody Perennials
Received for publication 21 Apr. 1999. Accepted for publication 5 May 1999. This work was supported by the U.S. Dept. of Agriculture–Agricultural Research Service, West Virginia Univ.–Agricultural Experiment Station, and the U.S. Dept. of Agriculture–National Research Initiative grant No. 9401825. West Virginia Univ. Agricultural Experiment Station Publication No. 2679. The cost of publishing t...
متن کاملPecan Tree Biomass Estimates
Allometric equations were developed for orchard-grown pecan [Carya illinoinensis (Wangenh.) C. Koch] trees. Trees, ranging in size from 22 to 33 cm in trunk diameter 1.4 m above the ground, were destructively harvested from two sites. The entire aboveground portion of each tree was harvested and then divided into leaves, current season’s shoots, and branches $1 year old plus trunk. Roots were s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American Society for Horticultural Science
سال: 1992
ISSN: 0003-1062,2327-9788
DOI: 10.21273/jashs.117.5.745