论文部分内容阅读
日灼病是一种多发生在炎热夏季的生理性病害,常发生在果实向阳面,发病初期果实向阳面退绿变色,逐渐变成灰白色,随病情发展,病部逐渐失水,变硬,呈皮革状,易破裂,果实病部长出黑霉成腐烂。日灼病主要是由于叶片遮阴不好,太阳直射果面,使果实局部受热,日灼表皮细胞引起在于气干热、土壤缺水或者忽雨忽晴,雨后暴热的条件下,容易发生日灼病。一些叶子稀疏的品种或者因其他病害造成植株大量落叶,均能引起病害的发生。为了防治日灼病应注意以下几点:1.选栽抗旱耐病品种;2.与玉米、高梁等高秆作物间作,利用高秆作物为甜椒遮阳,每4行甜椒间作一行玉米、高梁,间作不仅可防治日灼病,对防治病毒病也有积极作用。
Sunburn is a physiological disease that occurs in the hot summer, often occurs in the sunny side of the fruit, the early onset of the fruit back to the sun green discoloration, and gradually turned gray, with the progression of the disease, the disease gradually dehydration, hardening, Leathery, easily ruptured, fruit disease grow black mold rot. Sunburn is mainly due to poor shade of the leaves, the sun direct fruit surface, so that local fruit heat, sunburn epidermal cells is caused by air-dry heat, soil water or rain Suddenly clear, rain, hot conditions, easy Sunburn occurs. Some sparse varieties or leaves due to other diseases caused by a large number of leaves, can cause disease. In order to prevent sunburn should pay attention to the following points: 1. Selection of drought-resistant varieties; 2 with intercropping corn, sorghum and other high-stalk crops, the use of high-stalked pepper for the shade, every four rows of sweet pepper intercropping corn, sorghum , Intercropping not only prevent sunburn, also have a positive effect on the prevention and treatment of viral diseases.