Thí nghiệm được bố trí hoàn toàn ngẫu nhiên trên 80 cây so đũa (SD) (40 SD bông trắng và 40 đỏ) 1 tháng tuổi. gồm 2 thức (SD với 4 lần lặp lại để đánh giá khả năng sinh trưởng, suất thành phần hóa học của hai giống SD. Kết quả nghiên cứu cho thấy, chiều cao hơn đỏ (P<0,001). Đường kính tán lớn (P<0,05) ở các tuần từ 8 đến 16. Điển hình 14, đường 1,2 lần. Năng chất xanh đỏ, lượng lá cọng 4...

The South American water primroses, Ludwigia grandiflora (Michx.) Greuter & Burdet, L. grandiflora subsp. hexapetala (Hook. & Arn.) G.L. Nesom & Kartesz, Ludwigia peploides (Kunth) P.H. Raven, and L. p. subsp. montevidensis (Spreng.) P.H. Raven (Onagraceae, Section Oligospermum), have become invasive in several watersheds of the United States and Europe. Surveys were carried out in center-east ...

Greenhouse studies were conducted in 2006 to evaluate the effects of urea ammonium nitrate (UAN) solution on bispyribac and penoxsulam efficacy on barnyardgrass and hemp sesbania. Bispyribac and penoxsulam treatments containing an adjuvant and UAN significantly reduced barnyardgrass biomass over most treatments without UAN. Urea ammonium nitrate did not increase hemp sesbania biomass reduction,...

This study aimed to determine the chemical composition and gas production based on fermentation in rumen of nine types forage tropical feed commonly used Indonesia. The forages this were: mahogany leaves (Swietenia mahagoni L. Jacq.), tayuman (Bauhinia purpurea), bamboo (Bambusa arundinaceae), canary (Canarium indicum L.), tea (Camellia sinensis), ketapang (Terminalia catapa lamtoro (Leucaena l...

Nitrogen is one of the major elements available to plants through biological nitrogen fixation, which has received much attention in recent years. The present study aims at improving tree legumes viz., Albizzia lebbeck, Pithecolobium dulce, Sesbania grandiflora, Albizzia amara, Enterolobium saman, Erythrina indica, Leucaena leucocephala, Acacia mellifera, Pongamia glabra and Acacia auriculiform...

Globally, among different types of cancers, breast cancer is identified as the chief cause mortality females, and it a challenge to find new effective treatment strategies with minimal side effects increased efficacy. Plants are an integral part traditional indigenous healthcare system becoming concrete source drug discovery. Thus, there need obtain scientific basis for applying traditionally u...

Limnanthes floccosa ssp. floccosa and L. floccosa ssp. grandiflora are two of five subspecies within Limnanthes floccosa endemic to vernal pools in southern Oregon and northern California. Three seasons of monitoring natural populations have quantified that L. floccosa ssp. grandiflora is always found growing sympatrically with L. floccosa ssp. floccosa and that their flowering times overlap co...

Ludwigia hexapetala and L. grandiflora are recent, aggressive invaders of freshwater wetlands in California. To assess the relative role of sexual versus clonal reproduction in invasive spread, we used AFLP markers to genotype 794 ramets of L. hexapetala sampled from 27 populations in three watersheds of California, and 150 ramets of L. grandiflora from five populations in a fourth watershed. W...

Recent studies comparing genome-wide polymorphism and divergence in Drosophila have found evidence for a surprisingly high proportion of adaptive amino acid fixations, but results for other taxa are mixed. In particular, few studies have found convincing evidence for adaptive amino acid substitution in plants. To assess the generality of this finding, we have sequenced 257 loci in the outcrossi...