Male sterility

In order to exploit this novel male sterility in heterosis breeding, characterization of new TGMS lines and finding out critical stages for expression of sterility and fertility are very essential. In this context, the present study was taken up to fix the duration of critical sterility temperature expression of selected TGMS lines for hybrid seed production.

8p cothumenhmong7 09-09-2020 12 2   Download

Hybrid technology in many crops has contributed 20-30 per cent increase in the production and exploitation of heterosis through the development of F1 hybrids which has been recently deployed in rice with yield advantage of 20-25 per cent over best pure lines. The main aim of any plant breeding programme is to develop special high yielding hybrids and success of any plant breeding programme depends on the choice of appropriate genotypes as parents in the hybridization programme.

13p angicungduoc6 22-07-2020 26 2   Download

The anther cuticle, which is primarily composed of lipid polymers, is crucial for pollen development and plays important roles in sexual reproduction in higher plants. However, the mechanism underlying the biosynthesis of lipid polymers in maize (Zea mays. L.) remains unclear.

14p vishikamaru2711 29-04-2020 14 1   Download

In flowering plants, lipid biosynthesis and transport within anthers is essential for male reproductive success. TaMs1, a dominant wheat fertility gene located on chromosome 4BS, has been previously fine mapped and identified to encode a glycosylphosphatidylinositol (GPI)-anchored non-specific lipid transfer protein (nsLTP).

13p vishikamaru2711 29-04-2020 16 0   Download

Tiêu chuẩn này quy định những điều kiện cơ bản để cấp chứng chỉ chất lượng các lô hạt giống gồm dòng mẹ bất dục đực cảm ứng nhiệt độ (Themosensitive Genic Male Sterile-TGMS), dòng bố và hạt lai F1 tổ hợp lai 2 dòng, thuộc loài Oryza sativa L., được sản xuất và kinh doanh trên cả nước.

4p dtbnhuanvp 14-09-2012 166 12   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: An unedited 1.1 kb mitochondrial orfB gene transcript in the Wild Abortive Cytoplasmic Male Sterility (WA-CMS) system of Oryza sativa L. subsp. indica

18p panasonic06 25-12-2011 60 4   Download

In a pot experiment was conducted to evaluate the physiological characteristics and root characteristics associated with drought tolerance of rice varieties including indica rice subspecies, japonica rice subspecies, hybrid male sterility line and temperature sensitivity of wild rice species for comparison with drought-tolerant Indica rice varieties. At the effective tillering, the pot experiment was to drain the water and then dried for 4 days, then watered again.

9p thulanh2 07-09-2011 71 9   Download

Table 71-2 Deficiencies and Toxicities of Metals Element Deficiency Toxicity Tolerable Upper (Dietary) Intake Level Boron No biologic Developmental defects, male 20 mg/d function determined sterility, (extrapolated from data) animal testicular atrophy Calcium Reduced bone Renal insufficiency (milk-alkalai syndrome), mg/d 2500 (milk- Element Deficiency Toxicity Tolerable Upper (Dietary) Intake Level mass, osteoporosis nephrolithiasis, iron absorption impaired alkalai) Copper Anemia, growth retardation, keratinization Nausea, vomiting, 10 mg/d defective dia...

6p konheokonmummim 03-12-2010 88 4   Download