Efficient and precise yield prediction is critical to optimize cabbage yields and guide fertilizer application. A two-year field experiment was conducted to establish a yield prediction model for cabbage by using the Greenseeker hand-held optical sensor. Two cabbage cultivars (Jianbao and Pingbao) were used and Jianbao cultivar was grown for 2 consecutive seasons but Pingbao was only grown in t...

*Introgression of cultivar alleles into wild plant populations via crop-wild hybridization is primarily governed by their fitness effects as well as those of linked loci. The fitness of crop-wild hybrids is often dependent on environmental factors, but less is understood about how aspects of the environment affect individual cultivar alleles. *This study investigated the effects of naturally oc...

We describe the vertical and horizontal distribution of the cotton aphid Aphis gossypii Glover within a cotton plant in two cotton (Gossypium hirsutum Linnaeus) cultivars (BRS Safira and BRS Rubí) with colored fiber over the time. Measurements of aphid population dynamics and distribution in the cotton plants were recorded in intervals of seven days. The number of apterous or alate aphids and t...

Part of the Thesis of the first author. Universidade Federal de Viçosa. Viçosa MG. 2004. *Present Address: Laboratório de Microbiologia Agrícola, ICA, Universidade Federal Rural da Amazônia, 66077-530, Belém, PA, Brazil ABSTRACT Genetic and phenotypic structure of Magnaporthe oryzae populations of two upland rice cultivars was determined. Monoconidial isolates were obtained from rice blast aff...

Development of internal browning and some associated biochemical and physicochemical changes were investigated in the pineapple cultivar Mauritius (syn. Queen) and compared with those of a lesser susceptible cultivar Kew (syn. Smooth Cayenne). The study was expected to identify the major factors underlying the cultivar resistance to the disorder. Three-week long storage trials were conducted si...

abstract this research was conducted in hamadan province for evaluation of potato cultivars reaction to cultivation date. this experiment was performed in split plot design based on randomized complete block in thee replication with two factors, containing, i. main plots are planting date including: 9 april, 25 april, 10may, 26may, 10 june, 26 june 2. and subplots are cultivar with three levels...

To explore the mechanisms of color formation different colored persimmon fruits, we used two cultivars (yellow-peeled fruit ‘Zhongshi No.6’ and red-peeled ‘Hongdenglong’) as materials to study synthesis accumulation carotenoids in three stages (full green, transition, full yellow or red) using targeted metabolomic transcriptomic methods. A total 14 30 carotenoid lipids were identified peel cult...

introduction in recent years, rainfall deficiency was an increasing problem in most countries; which limited the production of agricultural crops. among abiotic stresses the plants encountered, drought stress is considered as the most important limiting factor in plants growth and reproduction in natural and agricultural systems through most parts of the world; while drought stress causes 45% i...

To investigate Fe deficiency tolerance in tomato cultivars, quantification of proteins and genes involved in Fe metabolism and antioxidant mechanisms were performed in "Roggusanmaru" and "Super Doterang". Fe deficiency (Moderate, low and -Fe) significantly decreased the biomass, total, and apoplastic Fe concentration of "Roggusanmaru", while a slight variation was observed in "Super Doterang" c...